FCC ID: OC3BM1856 Bluetooth Module

NVC-MDCS56 Datasheet Ver.2.4 NovaComm NVC-MDCS56 Datasheet NovaComm Technologies Confidential

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Ver.2.4 July 1, 2013 NVC-MDCS56 Datasheet Ver.2.4 Copyright 2011-2013 NovaComm Technologies All rights reserved. NovaComm Technologies assumes no responsibility for any errors, which may appear in this document. Furthermore, NovaComm Technologies reserves the right to alter the hardware, software, and/or specifications detailed herein at any time without notice, and do not make any commitment to update the information contained herein. NovaComm Technologies products are not authorized for use as critical components in life support devices or systems. The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA. All other trademarks listed herein are owned by their respective owners. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Version Release Date Comments Release Record 2.0 2.1 2.2 2.3 2.4 Mar 03, 2012 Release Sep 04,2012 Increase feature Oct 01, 2012 Updates reference design. Fix several format and spell errors Feb 22,2013 Updates reference design and Recommended PCB Mounting Pattern July 1,2013 Updates mechanical and footprint information, fix print errors in IO descriptions. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 1. Table of Contents 1 3 2 3.3.1 3.3.2 3.3.3 2.3.1 2.3.2 2.3.3 2.3.4 Pinout and Description ......................................................................................................................................... 7 Pin Configuration ................................................................................................................................ 7 1.1 1.2 Pin Configuration ................................................................................................................................ 7 Electrical Characteristics ....................................................................................................................................... 9 Absolute Maximum Rating ................................................................................................................ 9 2.1 Recommended Operating Conditions ........................................................................................... 10 2.2 2.3 Input/output Terminal Characteristics ............................................................................................ 10 Digital Terminals ....................................................................................................................... 10 USB ............................................................................................................................................ 11 Internal CODEC - Analogue to Digital Converter ................................................................ 11 Internal CODEC - Digital to Analogue Converter ................................................................ 12 2.4 Power consumptions ....................................................................................................................... 12 Physical Interfaces ............................................................................................................................................... 13 3.1 Power Supply .................................................................................................................................... 13 Reset .................................................................................................................................................. 13 3.2 Digital Audio Interfaces .................................................................................................................... 14 3.3 PCM ........................................................................................................................................... 15 Digital Audio Interface (I2S) ..................................................................................................... 15 IEC 60958 Interface (SPDIF).................................................................................................. 18 Microphone input .............................................................................................................................. 19 Analog Output stage ........................................................................................................................ 19 RF Interface ...................................................................................................................................... 20 General Purpose Analog IO ............................................................................................................ 20 General Purpose Digital IO ............................................................................................................. 20 Serial Interfaces................................................................................................................................ 20 Bluetooth UART ........................................................................................................................ 20 USB ............................................................................................................................................ 21 I2C ............................................................................................................................................... 21 SPI Interface ............................................................................................................................. 21 iNova Stack .......................................................................................................................................................... 22 4 5 Reference Design ................................................................................................................................................ 23 6 Mechanical and PCB Footprint Characteristics ................................................................................................... 24 7 RF Layout Guidelines ........................................................................................................................................... 25 Placement of the Module and Antenna ......................................................................................... 25 7.1 7.2 Feed Line and Antenna ................................................................................................................... 25 Reflow Profile ...................................................................................................................................................... 26 8 9 Package ............................................................................................................................................................... 28 10 Statement and Contact Information ................................................................................................................... 29 3.4 3.5 3.6 3.7 3.8 3.9 3.9.1 3.9.2 3.9.3 3.9.4 NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 2. Table of Tables Table 1: Ordering Information ........................................................................................................................... 6 Table 2: Pin Definition ........................................................................................................................................ 9 Table 3: Absolute Maximum Rating ............................................................................................................... 10 Table 4: Recommended Operating Conditions ............................................................................................ 10 Table 5: Digital Terminal .................................................................................................................................. 11 Table 6: USB Terminal ..................................................................................................................................... 11 Table 7: Analogue to Digital Converter ......................................................................................................... 12 Table 8: Digital to Analogue Converter ......................................................................................................... 12 Table 9: Power consumptions ........................................................................................................................ 13 Table 10: Pin Status on Reset ........................................................................................................................ 14 Table 11: Alternative Functions of the Digital Audio Bus Interface on the PCM Interface ..................... 14 Table 12 : Digital Audio Interface Slave Timing ........................................................................................... 16 Table 13 : Digital Audio Interface Master Timing ......................................................................................... 17 Table 14 : Possible UART Settings................................................................................................................ 21 3. Table of Figures Figure 1: Pinout for NVC-MDCS56 ................................................................................................................. 7 Figure 2 : Audio Interface ................................................................................................................................ 14 Figure 3 : Digital Audio Interface Modes ....................................................................................................... 16 Figure 4 : Digital Audio Interface Slave Timing ............................................................................................ 17 Figure 5 : Digital Audio Interface Master Timing.......................................................................................... 17 Figure 6: Example Circuit for SPDIF Interface (Co-Axial) .......................................................................... 18 Figure 7: Example Circuit for SPDIF Interface (Optical) ............................................................................. 19 Figure 8: Microphone Biasing (Single Channel Shown) ............................................................................. 19 Figure 9: Speaker output ................................................................................................................................. 20 Figure 10: Example EEPROM Connection with I2C Interface .................................................................. 21 Figure 11: NVC-MDCS56 Stacks ................................................................................................................... 22 Figure 12: Schematics reference design ...................................................................................................... 23 Figure 13: Recommended PCB Mounting Pattern ..................................................................................... 24 Figure 14 : Placement the module and antenna on a PCB Board ........................................................... 25 Figure 15: Antenna reference design ............................................................................................................ 26 Figure 16: Typical Lead-Free Re-flow Solder Profile for NVC-MDCS56 ..................................................27 Figure 17: NVC-MDCS56 Package ............................................................................................................... 28 NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Description:

Features:

NVC-MDCS56 is a class 2 Bluetooth 2.1+EDR (Enhanced Data Rate) module. It is based on CSRs BlueCore5-Multimedia. With internal DSP and audio codec, it is an ideal solution for integrating Bluetooth audio functions into various products with minima efforts. With NovaComms iNova stack, designers can easily customize their applications to support different Bluetooth profiles, such as HS/HF, A2DP, AVRCP, OPP, DUN, SPP, iAP over Bluetooth for Apple, HID and etc. The module size

(8M/16M/32M bits) for different combination of profiles. And the module can also interface with Apples Authentication Coprocessor and build an iAP over Bluetooth application. Please contact NovaComm for special firmware. Typical Bluetooth audio applications:

different support flash Bluetooth v2.1+EDRClass2

+4dBm TX power, -86.0dBm RX sensitivity Support Profiles: HS/HF, A2DP, AVRCP, OPP, DUN, SPP, iAP over Bluetooth for Apple, HID and etc. UART/I2C master 12 digital PIOs Support PCM interface (SPDIF ,I2S) Software Support Apt-X ,AAC, Apt-XLL, SBC codec. Wakeup interrupt and watchdog timer 23.24mm x 11.93mm x 2.05mm SMT pads for easy and reliable PCB mounting, QDID:B019582 RoHS compliant Home entertainment Office and mobile accessories Ordering Number Package Items in One Package Comments NVC-MDCS56 Plastic tray 100 16Mbits flash Table 1: Ordering Information Please also supply the customer firmware code issued by NovaComm Technologies when you place the order. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 1 Pinout and Description 1.1 Pin Configuration Figure 1: Pinout for NVC-MDCS56 1.2 Pin Configuration Pin Symbol I/O Type Description 1 2 3 4 5 GND Ground Ground RESETB SPI_CLK SPI_MISO SPI_MOSI CMOS input with weak Active LOW reset, input debounced so internal pull-up must be low for >5ms to cause a reset Input with weak internal Serial Peripheral interface clock for pull-down programming only CMOS output, tri-state, with Serial Peripheral Interface output for weak internal pull-down programming only CMOS input, with weak Serial Peripheral Interface input for internal pull-down programming only NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 6 SPI_CSB Input with weak internal Chip select for Synchronous Serial pull-up Interface for programming only, active low 7 PIO3 programmable strength Programmable input/output line Bi-directional with internal pull-up/down Bi-directional with 8 PIO11 programmable strength Programmable input/output line 9 PCM_OUT internal pull-up/down CMOS output, tri-state, with weak internal pull-down Synchronous Data Output 10 11 MIC_RP Analogue Microphone input positive, right MIC_RN Analogue Microphone input negative, right 12 PIO0 programmable strength Programmable input/output line Bi-directional with internal pull-up/down Bi-directional with 13 PIO1 programmable strength Programmable input/output line PCM_IN internal pull-up/down CMOS Input, with weak internal pull-down Synchronous Data Input GND Ground Ground 14 15 16 PCM_SYNC Bi-directional with weak internal pull-down Synchronous Data Sync 17 18 19 RF_GND RF Ground RF ground RF_IN RF RF Transceiver input/output line RF_GND RF Ground RF ground 20 PCM_CLK Bi-directional with weak internal pull-down Synchronous Data Clock 21 22 23 24 25 26 27 28 29 30 31 AIO1 GND Bi-directional Analogue programmable input/output line Ground Ground MIC_LP Analogue Microphone input positive, left MIC_LN Analogue Microphone input negative, right SPK_LN Analogue Speaker output negative, left SPK_LP Analogue Speaker output positive, left SPK_RN Analogue Speaker output negative, right SPK_RP Analogue Speaker output positive, right AIO0 Bi-directional Analogue programmable input/output line VDD 3V3 power input 3V3 power input USB_DP Bi-directional USB data plus with selectable internal 1.5K NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 pull up resistor 32 33 USB_DN Bi-directional USB data minus GND Ground Ground 34 PIO14 programmable strength Programmable input/output line Bi-directional with internal pull-up/down Bi-directional with 35 PIO9 programmable strength Programmable input/output line internal pull-up/down Bi-directional with 36 PIO4 programmable strength Programmable input/output line internal pull-up/down 37 GND Ground Ground 38 UART_TX tri-state, with weak internal UART data output Bi-directional CMOS output, 39 UART_RX pull-up CMOS input with weak internal pull-down Bi-directional with UART data input 40 PIO8 programmable strength Programmable input/output line internal pull-up/down Bi-directional with 41 PIO7 programmable strength Programmable input/output line internal pull-up/down Bi-directional with 42 PIO6 programmable strength Programmable input/output line internal pull-up/down Table 2: Pin Definition 2 Electrical Characteristics 2.1 Absolute Maximum Rating Rating Storage Temperature Operating Temperature PIO Voltage AIO Voltage Min

-40

-40

-0.4

-0.4 Max

+125

+85

+3.6

+1.57 Unit C C V V NovaComm Technologies Confidential

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VDD Voltage USB_DP/USB_DN Voltage Other Terminal Voltages except RF NVC-MDCS56 Datasheet Ver.2.4

-0.4

-0.4

+3.6

+3.6

-0.4 VDD+0.4 V V V Table 3: Absolute Maximum Rating 2.2 Recommended Operating Conditions Operating Condition Storage Temperature Operating Temperature Range PIO Voltage AIO Voltage VDD Voltage Min

-40

-40

+1.7

+1.42

+2.7 Typ

+3.3

+1.5

+3.3 Max

+105

+85

+3.6

+1.57

+3.6 Unit C C V V V Table 4: Recommended Operating Conditions 2.3 Input/output Terminal Characteristics 2.3.1 Digital Terminals Supply Voltage Levels Input Voltage Levels VIL input logic level low VIH input logic level high Output Voltage Levels Min Typ Max Unit

-0.3 0.625VDD

0 0

-40 40

-1.0

+1.0

+0.25xVDD VDD+0.3 0.125 VDD 100 100

-10 100

-0.2 5.0 V V V V nA nA uA A A A VOL output logic level low, lOL = 4.0mA

VOH output logic level high, lOH = -4.0mA 0.75xVDD Input and Tri-state Current Ii input leakage current at Vin=VDD or 0V Ioz tri-state output leakage current at Vo=VDD or 0V With strong pull-up With strong pull-down With weak pull-up With weak pull-down

-100

-100

-100 10

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-0.2 NovaComm Technologies Confidential

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CI Input Capacitance Resistive Strength Rpuw weak pull-up strength at VDD-0.2V Rpdw weak pull-down strength at 0.2V Rpus strong pull-up strength at VDD-0.2V Rpds strong pull-down strength at 0.2V NVC-MDCS56 Datasheet Ver.2.4 1.0 500k 500k 10k 10k

5.0 pF 2M 2M 50k 50k Table 5: Digital Terminal 2.3.2 USB USB Terminals Input Threshold VIL input logic level low VIH input logic level high Input Leakage Current GND < VIN < VDD(a) CI Input capacitance Min Typ Max Unit

0.7xVDD

-1 2.5

1

0.3xVDD

5 10.0 0.2 VDD V V A pF V V Output Voltage Levels to Correctly Terminated USB Cable VOL output logic level low VOH output logic level high

(a) Internal USB pull-up disabled 0.0 2.8 Table 6: USB Terminal 2.3.3 Internal CODEC - Analogue to Digital Converter Parameter Conditions Min Typ Max Unit Resolution Input Sample Rate, Fsample Signal to Noise Ratio, SNR fin=1kHz Fsample 8kHz B/W=20Hz->20kHz 11.025kHz A-Weighted THD+N<1%

150mV Vpk-pk 16kHz 22.050kHz 32kHz 44.1kHz

8

Digital Gain Digital Gain Resolution = 1/32 dB

-24

82 81 80 79 79 78

Bits kHz dB 16 44.1

21.5 dB NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Analogue Gain Analogue Gain Resolution = 3dB

-3 Input full scale at maximum gain (differential) Input full scale at minimum gain (differential) 3dB Bandwidth Microphone mode input impedance THD+N (microphone input) @ 30mv rms input

4 800 20 6 0.04 42 dB

mV rms mV rms kHz k

Table 7: Analogue to Digital Converter 2.3.4 Internal CODEC - Digital to Analogue Converter Parameter Conditions Min Typ Max Unit Resolution Output Sample Rate, Fsample fin=1kHz B/W=20Hz->20kHz Signal to Noise A-Weighted Fsample 8kHz 11.025kHz 16kHz Ratio, SNR THD+N<0.01%

22.050kHz 0dBFS signal Load = 100k 32kHz 44.1kHz 48kHz

8

Digital Gain Digital Gain Resolution = 1/32 dB

-24 Analogue Gain Analogue Gain Resolution = 3dB Output voltage full swing (differential) 0

Allowed Load THD+N 100k load THD+N 16 load Resistive 16(8) Capacitive

95 95 95 95 95 95 95

Bits kHz dB 16 48

21.5

-21 dB dB 750

mV rms

95 OC 500 0.01 0.1

pF

dB SNR (Load=16, 0dBFS input relative to digital silence) Table 8: Digital to Analogue Converter 2.4 Power consumptions Operating Condition Min Average Max Unit Connected Idle (Sniff(a)1.28 secs) Connected with audio streaming (A2DP) 30 0.45 35 40 mA mA NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Deep Sleep Idle mode Radio On (Discovery) Radio On ( Inquiry window time) Note :

50 23 35 uA mA mA Table 9: Power consumptions Power consumption depends on the firmware used. Typical values are shown in the table.

(a)Sniff mode ----- In Sniff mode, the duty cycle of the slaves activity in the piconet may be reduced. If a slave is in active mode on an ACL logical transport, it shall listen in every ACL slot to the master traffic, unless that link is being treated as a scatternet link or is absent due to hold mode. With sniff mode, the time slots when a slave is listening are reduced, so the master shall only transmit to a slave in specified time slots. The sniff anchor points are spaced regularly with an interval of Tsniff. 3 Physical Interfaces 3.1 Power Supply The module accepts a 3.3V DC power input. Power supply should guarantee good ripple suppression and enough current. 3.2 Reset The module may be reset from several sources: RESETB pin, power-on reset, a UART break character or via software configured watchdog timer. The RESETB pin is an active low reset and is internally filtered using the internal low frequency clock oscillator. A reset will be performed between 1.5 and 4.0ms following RESETB being active. It is recommended that RESETB be applied for a period greater than 5ms. At reset the digital I/O pins are set to inputs for bi-directional pins and outputs are tri-state. The pull-down state is shown below. Pin Name / Group Pin Status on Reset USB_DP USB_DN UART_RX UART_TX SPI_MOSI SPI_CLK SPI_CSB SPI_MISO RESETB N/a N/a PD PU PD PD PU PD PU NovaComm Technologies Confidential

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PIOs PCM_IN PCM_CLK PCM_SYNC PCM_OUT NVC-MDCS56 Datasheet Ver.2.4 PD PD PD PD PD Note: Pull-up (PU) and pull-down (PD) default to weak values unless specified otherwise. Table 10: Pin Status on Reset 3.3 Digital Audio Interfaces The audio interface circuit consists of:

Stereo audio codec Dual audio inputs and outputs A configurable PCM, IS or SPDIF interface Figure 2 outlines the functional blocks of the interface. The codec supports stereo playback and recording of audio signals at multiple sample rates with a resolution of 16-bit. The ADC and the DAC of the codec each contain 2 independent channels. Any ADC or DAC channel can be run at its own independent sample rate. Figure 2 : Audio Interface The interface for the digital audio bus shares the same pins as the PCM codec interface described in Table 11, which means each of the audio buses are mutually exclusive in their usage. Table 11 lists these alternative functions. PCM Interface PCM_OUT PCM_IN PCM_SYNC PCM_CLK SPDIF Interface IS Interface SPDIF_OUT SPDIF_IN

SD_OUT SD_IN WS SCK Table 11: Alternative Functions of the Digital Audio Bus Interface on the PCM Interface The audio input circuitry consists of a dual audio input that can be configured to be either single-ended or NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 fully differential and programmed for either microphone or line input. It has an analogue and digital programmable gain stage for optimization of different microphones. The audio output circuitry consists of a dual differential class A-B output stage. 3.3.1 PCM The audio pulse code modulation (PCM) interface supports continuous transmission and reception of PCM encoded audio data over Bluetooth. Hardware on NVC-MDCS56 allows the data to be sent to and received from a SCO connection. Up to three SCO connections can be supported by the PCM interface at any one time. NVC-MDCS56 can operate as the PCM interface master generating PCM_SYNC and PCM_CLK or as a PCM interface slave accepting externally generated PCM_SYNC and PCM_CLK. NVC-MDCS56 is compatible with a variety of clock formats, including Long Frame Sync, Short Frame Sync and GCI timing environments. It supports 13-bit or 16-bit linear, 8-bit u-law or A-law companded sample formats and can receive and transmit on any selection of three of the first four slots following PCM_SYNC. NVC-MDCS56 interfaces directly to PCM audio devices including the following:

Qualcomm MSM 3000 series and MSM 5000 series CDMA baseband devices OKI MSM7705 four channel A-law and -law CODEC Motorola MC145481 8-bit A-law and -law CODEC Motorola MC145483 13-bit linear CODEC STW 5093 and 5094 14-bit linear CODECs(8) NVC_MDCS56 is also compatible with the Motorola SSI interface 3.3.2 Digital Audio Interface (I2S) The digital audio interface supports the industry standard formats for I2S, left-justified or right-justified. The interface shares the same pins of the PCM interface as Table 11. Special firmware is needed if I2S is used. Contact NovaComm for the special firmware when use I2S as the interface between the module and the host or the codec. The I2S support following formats:

NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 3 : Digital Audio Interface Modes Symbol Parameter Min Typical Max

tch tcl topd tssu tsh tisu tih SCK Frequency WS Frequency SCK high time SCK low time SCK to SD_OUT delay WS to SCK set up time WS to SCK hold time SD_IN to SCK set-up time SD_IN to SCK hold time

80 80

20 20 20 20

6.2 96

20

Table 12 : Digital Audio Interface Slave Timing Unit MHz kHz ns ns ns ns ns ns ns NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 4 : Digital Audio Interface Slave Timing Symbol Parameter Min Typical Max

topd tspd tisu tih SCK Frequency WS Frequency SCK to SD_OUT delay SCK to WS delay SD_IN to SCK set-up time SD_IN to SCK hold time

20 10

6.2 96 20 20

Table 13 : Digital Audio Interface Master Timing Unit MHz kHz ns ns ns ns Figure 5 : Digital Audio Interface Master Timing NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 3.3.3 IEC 60958 Interface (SPDIF) The IEC 60958 interface is a digital audio interface that uses bi-phase coding to minimise the DC content of the transmitted signal and allows the receiver to decode the clock information from the transmitted signal. The IEC 60958 specification is based on the 2 industry standards:

AES/EBU Sony and Philips interface specification SPDIF The interface is compatible with IEC 60958-1, IEC 60958-3 and IEC 60958-4. The SPDIF interface signals are SPDIF_IN and SPDIF_OUT and are shared on the PCM interface pins. The input and output stages of the SPDIF pins can interface to:

A 75 coaxial cable with an RCA connector, see Figure 6. An optical link that uses Toslink optical components, see Figure 7. Figure 6: Example Circuit for SPDIF Interface (Co-Axial) NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 7: Example Circuit for SPDIF Interface (Optical) 3.4 Microphone input Figure 8: Microphone Biasing (Single Channel Shown) The audio input is intended for use in the range from 1A @ 94dB SPL to about 10A @ 94dB SPL. With biasing resistors R1 and R2 equal to 1k, this requires microphones with sensitivity between about 40dBV and 60dBV. The microphone for each channel should be biased as shown in Figure 8. 3.5 Analog Output stage The output stage digital circuitry converts the signal from 16-bit per sample, linear PCM of variable sampling frequency to a 2Mbits/s 5-bit multi-bit bit stream, which is fed into the analogue output circuitry. The output stage circuit is comprised a DAC with gain setting and class AB amplifier. The output is available as a differential signal between SPKR_A_N and SPKR_L_P for the right channel, as Figure 6 shows, and between SPKL_B_N and SPKL_B_P for the left channel. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 9: Speaker output 3.6 RF Interface Input impedance of the RF port is 50 so the user can connect a 50 antenna directly to the RF port. 3.7 General Purpose Analog IO The module has two general-purpose analogue interface pins, AIO0 and AIO1. These are used to access internal circuitry and control signals. Auxiliary functions available via these pins include a 10-bit ADC. Signals selectable at these pins include the band gap reference voltage and a variety of clock signals: 64, 48, 32, 24, 16, 12, 8, 6 and 2MHz (outputted from AIO0 only) and the XTAL and XTAL/2 clock frequency

(outputted from AIO0 and AIO1). Do not connect them if not use. 3.8 General Purpose Digital IO The module has several general-purpose bi-directional input/outputs (I/O). Any of the PIO lines can be configured as interrupt request lines or wake-up lines from sleep modes. There are nine general purpose digital IOs defined in the module. All these GPIOs can be configured by software to realize various functions, such as button controls, LED displays or interrupt signals to host controller, etc. Do not connect them if not use. 3.9 Serial Interfaces 3.9.1 Bluetooth UART The module has a standard UART serial interface that provides a simple mechanism for communicating using RS232 protocol. When the module is connected to another digital device, UART_RX and UART_TX transfer data between the 2 devices. Parameter Possible Values Baud Rate Minimum 1200 baud (2%Error) NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Maximum Parity Number of Stop Bits Bits per Byte 9600 baud (1%Error) 4M baud (1%Error) None, Odd or Even 1 or 2 8 Table 14 : Possible UART Settings 3.9.2 USB This is a full speed (12M bits/s) USB interface for communicating with other compatible digital devices. The module acts as a USB peripheral, responding to request from a master host controller, such as a PC. The USB interface is capable of driving a USB cable directly. No external USB transceiver is required. The device operates as a USB peripheral, responding to requests from a master host controller such as a PC. Both the OHCI and the UHCI standards are supported. The set of USB endpoints implemented can behave as specified in the USB section of the Bluetooth specification v2.0+EDR or alternatively can appear as a set of endpoints appropriate to USB audio devices such as speakers. The module has an internal USB pull-up resistor. This pulls the USB_DP pin weakly high when module is ready to enumerate. It signals to the USB master that it is a full speed (12Mbit/s) USB device. 3.9.3 I2C PIO8, PIO7 and PIO6 can be used to form a master I2C interface as shown in Figure 10. PIO lines need to be pulled up through 2.2Kohm resistors. Figure 10: Example EEPROM Connection with I2C Interface 3.9.4 SPI Interface The synchronous serial port interface (SPI) is used for flash/debug the module only. It cannot be used for any user functionality. Please always design test points for this interface on the PCB in case that the module is needed to re-flash or flash-in-field in manufacture. NovaComm Technologies Confidential

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VDD NVC-MDCS56 Datasheet Ver.2.4 4 iNova Stack Figure 11: NVC-MDCS56 Stacks NVC-MDCS56 is supplied with Bluetooth 2.1+EDR compliant stack firmware. With NovaComms iNova profile stacks, the host MCU can easily integrate HFP, A2DP, AVRCP, SPP, HID profiles and iAP over Bluetooth functions. NovaComm Technologies Confidential

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Host MCUBluetooth ModuleRadioBasebandLCLMHCIL2CAPRFCOMMSDPiNovaHost ApplicationUARTI/OPCM NVC-MDCS56 Datasheet Ver.2.4 5 Reference Design Figure 12: Schematics reference design NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 6 Mechanical and PCB Footprint Characteristics Figure 13: Recommended PCB Mounting Pattern NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 7 RF Layout Guidelines NVC-MDCS56 needs a PCB or external antenna to radiate and receive the RF signals. Follow basic RF design guidelines will ensure the design a good RF performance. 7.1 Placement of the Module and Antenna If PCB antenna is used, please consider the antenna placement according to Figure 14. Figure 14 : Placement the module and antenna on a PCB Board 7.2 Feed Line and Antenna The impedance of the feed line between the RF port and the antenna shall be 50 and 1dBi A good ground directly under the feed line is always needed for impedance control. Route the feed line as curve lines when needed, avoid 90 or even less degree angles style. The width of the feed line, the distance of the feed line to the ground plane are keys to the impedance. Ask your PCB supplier to control the impedance of the feed line. For the antenna, When PCB antenna is used, matching networks shall be used to optimize the antennas signal strength. Use as many vias as possible to connect the ground planes nearby the antenna. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 15: Antenna reference design 8 Reflow Profile NVC-MDCS56 is compatible with industrial standard reflow profile for Pb-free solders. The soldering profile depends on various parameters necessitating a set up for each application. The data here is given only for guidance on solder re-flow. There are four zones:

1. Preheat Zone - This zone raises the temperature at a controlled rate, typically 1-2.5C/s. 2. Equilibrium Zone - This zone brings the board to a uniform temperature and also activates the flux. The duration in this zone (typically 2-3 minutes) will need to be adjusted to optimise the out gassing of the flux. 3. Reflow Zone- The peak temperature should be high enough to achieve good wetting but not so high as to cause component discoloration or damage. Excessive soldering time can lead to intermetallic growth which can result in a brittle joint. 4. Cooling Zone - The cooling rate should be fast, to keep the solder grains small which will give a longer lasting joint. Typical rates will be 2-5C/s. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Figure 16: Typical Lead-Free Re-flow Solder Profile for NVC-MDCS56 Key features of the profile:

Initial Ramp = 1-2.5C/sec to 175C 25C equilibrium Equilibrium time = 60 to 180 seconds Ramp to Maximum temperature (250C) = 3C/sec max. Time above liquidus temperature (217C): 45-90 seconds Device absolute maximum reflow temperature: 255C Note: Customer might choose a local 0.2mm thickness solder cream for the module, or use 0.15mm to match other components in the same PCB. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 9 Package Figure 17: NVC-MDCS56 Package Plastic tray, plus aluminum bags do vacuum packing. Items in One Package number of 100 PCS. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 10 Statement and Contact Information Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna; Increase the separation between the equipment and receiver; Connect the equipment into an outlet on a circuit different from that to which the receiver is connected; Consult the dealer or an experienced radio/TV technician for help. In accordance with FCC Part 15C, this module is listed as a Limited Modular Transmitter device. Therefore, the final host product must be submitted to [NovaComm Technologies Inc.] for confirmation that the installation of the module into the host is in compliance with the regulations of FCC and IC Canada. Specifically, if an antenna other than the model documented in the Filing is used, a Class 2 Permissive Change must be filed with the FCC. Changes or modifications not expressly approved by the manufacturer could void the users authority to operate the equipment. FCC Label Instructions The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: [OC3BM1856] or Contains FCC ID:

[OC3BM1856]. Any similar wording that expresses the same meaning may be used. To satisfy FCC RF Exposure requirements for mobile and base station transmission devices, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance, operation at closer than this distance is not recommended. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. NovaComm Technologies Confidential

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NVC-MDCS56 Datasheet Ver.2.4 Sales: sales@novacomm.cn Technical support: support@novacomm.cn Phone: +86 21 60453799 Fax: +86 21 60453796 Street address: 902A, #560 Shengxia Rd., ZJ Inno Park, Shanghai 201203, China NovaComm Technologies Confidential

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