User Manual TUYA AVS Smart Audio Module-VWRK4 VersionV1.0.1 TUYA AVS Smart Audio Module-VWRK4 User Manual 1 1.0 1.1 1.2 Version Update content Name The user manual of VWRK4 Jia Zeng/ Renfang Li Increase the introduction of amazon and app operation Jia Zeng Increase the introduction of voice kit VWRK4 Jia Zeng /Yongguang Zhu 2 1Product Abstract Tuya AVS voice module VWRK4 is based on the powerful RockChip 3308 IC which integrated with 4-Core 64 bit A35 ARM Core. The Module is integrated with voice wake & noise cancellation algorithm and which can be applied in the IoT device/gateway/smart speaker. The CPU RK3308s frequency is 1.3GHz, which can provide powerful computing ability. Also, the module is integrated with the RF chip RTL8723DS which contains WiFi Sing-band 1X1+BluetoothBR/EDR/BLE4.0 This can make it easy to connect to the Tuya IoT platform. Peripheral2*Uart7*MICRGB6661*SPI2*I2C2*USB, GPIOs3*ADC 1.1 Features High powerful ARM 4-Core 64 bit A35 RochChip 3308 CPU Frequency 1.3GHz Work voltage: 4.2-5.5V5V default AntennaIPEX Sampling Rate:16K/16bit Audio Feature 1) 4 ways mic pickup, stereo playback. 2) 6 ways mic pickup, single channel playback. 3) Audio output: stereo HPOUT and stereo LINEOUT 4) Audio AUX IN: support Entertainment Approvedamazon music, audible, iHeartRadio, TuneIn SkillAll the skills contains in Alexa. For example:
Newest arrivals, Business & finance, Connected Car,Education & Reference, Food &Drink, Game & Trivia, Health & Fitness, kids, lifestyle, local, Movies & TV, Music & Audio, News, Novelty & Humor, Productivity, Shopping, Smart Home, Sports, Travel & Transportation, Utilities,Weather. 3 Smart household and home appliances 1.2 Applications Smart Device Net Gateway Control Voice Control Panel 4 2Module Interfaces 2.1 Dimensions and Footprint The Module has four rows of pins with 1mm Pin Width and 1.5mm pin spacingthe total number of pins is 82and its dimensions is 35mm*35mm*3.2mmW*L*HFigure 2-1 shows the Dimension views. Note:
The default dimensional tolerance is 0.35mm. Figure 2-1 Dimensions of VWRK4 The total pins is 82 and the opposite side has the same number pins, one side is 20 and the other is 21. Figure 2-2 shows the footprint views. Figure 2-2 Footprint of VWRK4 5 2.2 Circuit Diagram Table 2-1 Hardware Feature RK3308 128 MByte 128 MByte 2/4 mic array BluetoothBR/EDR/BLE4.0 IEEE 802.11b/g/n
(channel 1-14) MIC/HPOUT/LINEOUT LCD Interface Power Interface MicroUSB 5V1A Antenna IPEX Antenna Interface Reserved UART/IIC/PWM/GPIO/USB interface Circuit Diagram of VWRK4 voice kit Figure 2-3 Circuit Diagram of VWRK4 6 MCU Flash DDR Mic BT WIFI Audio LCD 2.3 Pin Definition Table 2-2 Pin Definition of VWRK4 Pin No. Pin Name Pad Type Function Power Supply reference ground pin The RF ANT Interface Power Supply reference ground pin Analog of ADC Input Analog of ADC Input Debug UART RX Debug UART TX USB Data PIN for Host USB Data PIN for Host USB ID PIN for OTG USB Data PIN for OTG USB Data PIN for OTG The General I/O Pin The General I/O Pin GND ANT GND ADC_KEY_IN2 SAR_ADC_IN3 UNO_RX UNO_TX USB_HOST_DM USB_HOST_DP USB_OTG_ID USB_OTG_DM USB_OTG_DP PHONE_CTRL PHONE_DET GND VCC-5V VCC-5V GND P O P AI AI I/O I/O I/O I/O I/O I/O I/O I/O I/O P P P P P P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 AUX_IN_CTRL I/O Selection of HPout or Lineout/ General I/O SPK_MUTE I/O Speaker mute Control Pin /The General I/O Pin MIC_LED I/O Control of Led Peripherals/ General I/O GND Power Supply reference ground pin VCC-IO_OUT Power supply pin for Peripherals Power Supply reference ground pin Power supply pin(5V) Power supply pin(5V) Power Supply reference ground pin 7 LCD_HS I/O LCD Horizontal sync PIN/ General IO Pin LCD Vertical sync PIN/ General IO Pin 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 IR_RX IR_TX I2C_SDA I2C_CLK LCD_PWR LCD_BL LCD_RST LCD_DEN LCD_VS LCD_CLK LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D11 LCD_D10 LCD_D8 LCD_D7 LCD_D13 LCD_D14 LCD_D9 LCD_D17 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O IR Receive Pin / General IO Pin IR Tranmit Pin / General IO Pin I2C SDA for Peripherals I2C CLK for Peripherals LCD Power Control Pin LCD Back light / General IO Pin/PWM LCD Reset Pin / General IO Pin LCD Data Enable/ General IO Pin LCD Clk Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin 8 LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD Data Pin / General IO Pin LCD_SPI_RX SPI Data Pin for LCD / General IO Pin LCD_SPI_CLK SPI CLk Pin for LCD / General IO Pin LCD_SPI_CS SPI CS Pin for LCD / General IO Pin LCD_SPI_TX SPI Data Pin for LCD / General IO Pin Power Supply reference ground pin 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 LCD_D12 LCD_D15 LCD_D16 GND HPOUT_R HPOUT_L LINEOUT_R LINEOUT_L MIC2N MIC2P MIC3N MIC3P MIC4N MIC4P MIC5N MIC5P MIC6N MIC6P MIC7N MIC7P MIC8N MIC8P I/O I/O I/O I/O I/O I/O I/O P AO AO O O AI AI AI AI AI AI AI AI AI AI AI AI AI AI 9 Headphone output Right Headphone output Left Line output Right Line output Left The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input The Audio Analog input Power Supply reference ground pin UART1 CTS PIN / General IO Pin UART1 RTS PIN / General IO Pin UART1 RX PIN / General IO Pin UART1 TX PIN / General IO Pin The System HardWare Reset Pin ADC_KEY_IN1 Analog of ADC Input GND AP_CTS AP_RTS AP_RX AP_TX RST 76 77 78 79 80 81 82 Note 1P indicates power supply pinsI/O indicates input/output pinsand AI indicates analog input pins, AO indicates analog output pins. 2RST is only a hardware reset pin. 3UNO_TX/RX are user-side serial interface pinscan be used for debug the system. P I/O I/O I/O I/O O AI 10 3Electrical Parameters 3.1 Absolute Electrical Parameters Table 3-1 Absolute Electrical Parameters Parameter Description Minimum Value Maximum Value Unit Ts Storage Temperature VCC Power Supply Voltage ESDHBM TAMB-25 ESDMM TAMB-25
-40
-0.3 N/A N/A 70 5.5 2000 500 3.2 Electrical Conditions Table 3-2 Normal Electrical Conditions Parameter Description Minimum Typical Maximum Value Value Value Ta Working
-20 NA 60 temperature VCC Power Supply 4.2 5 Vil IO Low-level NA NA Vih IO high-level 2 NA 3.3+0.3 Vol IO Low-level NA Voh IO high-level 2.9 NA 3.3 2 Imax
mA V V V V V V V V 5.5 0.8 0.4
8 Voltage input input output output IO Drive Current 11 3.3 Working Current Table 3-3 Power Consumption during working mode Working Mode StatusTa=25VCC=5V Typical Peak Unit Value Value EZ In EZ mode and wifi indicator blinks 193 876 mA quickly Connected The module is connected to the 145 788 mA and idle network and wifi indicator is steady on Connected The module is connected to the 239 892 mA and network and the wifi is transmit data Communicate Notethe power consumption is tested at the supply voltage is 5V. 3.4 Transmit power 3.4.1 WIFI transmit power Wifi TX IRF Table 3-4 WIFI transmit Power Consumption Parameter Mode Rate Transmit Power Typical Unit 11b 11g 11Mbps
+17dBm 54Mbps
+14.5dBm 11n/HT20 MCS7
+13.5dBm 11n/HT40 MCS7
+13.5dBm 267.2 272.0 246.0 246.0 mA mA mA mA Note: working conditionVBAT=5VVDD_ANA=1.8V,internal TOP LDO supply 3.4.2 WIFI Receive Power Table 3-5 WIFI Receive Power Consumption Parameter Typical Unit 12 WIFI RX mA mA mA ACTIVE 1M DSSS DEEP SLEEP 54M OFDM 11b 11g 72 84 55
mA mA mA mA Note: working conditionVBAT=5VVDD_ANA=1.8V,internal TOP LDO supply 3.4.3 Bluetooth transmit power Table 3-6 Bluetooth transmit Power Consumption Parameter Mode Rate Transmit Power Typical Unit BT TX IRF BR EDR BLE 1Mbps 3Mbps 9dBm 8dBm 1Mbps
+8.5dBm 267.2 272.0 246.0 Note: working conditionVBAT=5VVDD_ANA=1.8V,internal TOP LDO supply 3.4.4 Bluetooth Receive Power Table 3-7 Bluetooth Receive Power Consumption BT RX Mode Parameter Typical
-93
-93
-92
-85
-98
-93 unit dBm dBm dBm dBm dBm dBm IRF BR EDR BLE DH1 DH5 2Mbps 3Mbps 1Mbps DH1 13 NoteVBAT=5VVDD_ANA=1.8V,internal TOP LDO supply 4RF Features 4.1 basic RF characteristics Parameter description Work frequency 2.400~2.484GHz Wi-Fi standard IEEE802.11b/g/n20/n40(channel 1-14) BLE standard BRV2.0/EDR/BLEV4.0 WIFI modulation 802.11b: CCK, DQPSK, DBPSK 802.11g: 64-QAM,16-QAM, QPSK, BPSK 802.11n: 64-QAM,16-QAM, QPSK, BPSK BLE modulation 8DPSK, /4 DQPSK, GFSK WIFI data transfer 11b:1,2,5.5,11(Mbps) 11g:6,9,12,18,24,36,48,54(Mbps) BLE data transfer Basic Rate1 Mbps 11n:HT20MCS0~7 11n:HT40MCS0~7 BLE: 1Mbps type type rate rate Enhanced Data Rate(EDR)2Mbps/3 Mbps Antenna type Support IPEX external antenna/ on board antenna connect 4.2 Output PowerTX continuous transmit power,VBAT=5V 4.2.1 WIFI transmit power Parameter Min Typical Max Unit RF average output power802.11bCCKMode 11M
17
dBm 14 RF average output power 54M
14.5
dBm 802.11gOFDMMode RF average output power 802.11n/20M MCS7
13.5
dBm RF average output power 802.11n/40M MCS7
13.5
dBm Mode Mode Frequency error
-20
20 ppm 4.2.2 BLE transmit power Parameter Min Typical Max Unit RF average output powerBR ode RF average output powerEDR Mode RF average output powerBLE Mode 1M 3M 1M
+5.5
+5.5
+5.5
dBm dBm dBm Frequency error
-10
10 ppm 4.3 receive sensitivity RX sensitivity,VBAT=5V Parameter Min Typical Max Unit 4.3.1 WIFI Receive Sensitivity RF average output power 1M 802.11b Mode RF average output power 11M 802.11bCCKMode RF average output power 54M 802.11gOFDMMode RF average output power MCS7 802.11nOFDMMode RF average output power MCS7
-72 802.11n/40M Mode
-92
-86
-74
-72
dBm dBm dBm dBm dBm 15 4.3.2 BLE receive sensitivity Symbol Parameter IRF IRF IRF IRF IRF Mode Rate Typical BR EDR DH1 DH5 2Mbps 3Mbps
-91
-91
-90
-84 Unit dBm dBm dBm dBm BLE 1Mbps
-95 dBm 16 5Antenna Information 5.1 Antenna type VWRK4 module uses the on board IPEX connector to connect with the external FPC antenna. 5.2 Reduce Antenna Interference For a better performance, some suggestions to the users:
A. The distance between the module antenna and other metal parts must be at least 15mm. B. If you use the IPEX Antenna, The Following options are some advice you should pay attention IPEX ANT interface 1Place the IPEX interface near the outline of the board. 2No shield should cover on the IPEX interface. These suggestions are for the extend ANT interface pin used for IPEX ANT. 5.3 FPC Antenna VWRK4 module can use an external IPEX antenna by the on board IPEX connector. The FPC antenna is designed by Tuya cooperationand manufacture by Dongguan UB 17 electronic company. The FPC Antenna is together with the VWRK4 module. if the costumer use their own new Antenna, the FCC should be tested with the new Antenna. The following table is the main technical specifications of the FPC Antenna. Main technical specifications UB UB01C07F3D1388A Frequency Range (MHZ) 2400~2500 Items Manufacturer Product model Impedance() AVG Gain(dBi) VSWR Admitted Power Polarization Connector Type Antenna Base Operating Temp Storage Temp 50 2.13 1.92 1W Line FPC RF Cable+Terminal
-20~+70
-20~+70 18 The Figure 5-5 is the Picture of the FPC antenna. All the features of the FPC antenna can be reviewed from the The Specification of the FPC antenna. Figure 5-5 The FPC Antenna 19 6Packaging Information 6.1 Mechanical Dimensions The following is the mechanical dimensions of the VWRK4 module, the width and the longth are 35mm*35mm. Figure 6-1 VWRK4 mechanical dimensions of top side Figure 6-1 VWRK4 mechanical dimensions of bottom side NoteThe Pads beyond the dimensions are cutted and half leftif you want to design the package of the VWRK4, be careful of the pad dimensions. 6.2 Product instructions 20 Appendix: Statement Federal Communications Commission (FCC) Declaration of Conformity FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: 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. Radiation Exposure Statement Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Important Note This radio module must not installed to co-locate and operating simultaneously with other radios in host system except in accordance with FCC multi-transmitter product procedures. Additional testing and equipment authorization may be required to operating simultaneously with other radio. The availability of some specific channels and/or operational frequency bands are country 21 dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. The end user manual shall include all required regulatory information/warning as shown in this manual, including: This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body. This device have got a FCC ID2ANDL-VWRK4.The final end product must be labeled in a visible area with the following: Contains Transmitter Module FCC ID:2ANDL-VWRK4 This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Declaration of Conformity European notice Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU,2011/65/EU.A copy of the Declaration of conformity can be found at https://www.tuya.com This product must not be disposed of as normal household waste, in accordance with EU directive for waste electrical and electronic equipment (WEEE- 2012/19/EU). Insteadit should be disposed of by returning it to the point of sale, or to a municipal recycling collection The device could be used with a separation distance of 20cm to the human body. point. 22