B131 Tablet PC 8094M Operationdescription HW 20200915 Rev4 Operational Description

 

8094M Operation Description 1. Overview:

8094M works with GSM quad band (GSM850/GSM900/DCS1800/PCS1900) UMTS quad band (UMTS1/2/4/5/8), LTE band2/3/4/5/7/8/12/13/17/28/66 . And CPU runs at 4x2.0GHz, with 32GB e-MMC Flash Memory and 2GB DDR3. It can support HSDPA downlink and HSUPA uplink data rates, as well as Class 12 GPRS (in both uplink and downlink mode) and Class 12 EDGE. The main IC include Base band + PMIC MT8766V/WB + MT6357MRV from MTK Memory (e.MMC+LPDDR3 SDRAM) KMQX60013A-B419----SAMSUNG RF Transceiver MT6177MV/BCA-H from MTK for GSM&WCDMA&LTE RF TRANSMIT MODULE S2916-51 from SMARTER MICRO RF PA MODULE S5643-51 from SMARTER MICRO BT/WIFI/FM MODULE MT6631N from MTK DRX SAW Duplexer B2+B66: SAWFD1G96AC2F0A from MURATA B3: SFHG42CA002 from WISOL B5: SFH881AA002 from WISOL B7: SFHG56BA002 from WISOL B8: SFH942AA002 from WISOL B12/17: SFH737AA002 from WISOL B13: SAFFB751MAA0F0AR15 from MURATA B28: SFH780AA402 from WISOL B1: B39212B8651P810 from RF360 B2: B39202B1244P810 from RF360 B3: B39182B1227P810 from RF360 B4: B39222B8695L210 from RF360 B5: SFX836CYA02 from WISOL B7: SD18-2535R8UUB1 from KYOCERA B8: SFX897EYT02 from WISOL B12/17: SAYEY707MBA0F0A from MURATA B13: SD18-0782R8UUD1 from KYOCERA B28A: B39771B8538P810 from RF360 B28B: B39791B8539P810 from RF360 RF connector G-Sensor 32080113 from ECT 32080700 from JTCONN STK8BA58, from SENSORTEK 2. System diagram Overview:

2.1. Overview:

2.2. RF:

RF (Radio Frequency) section is in charge of the signal transmit and receiving, signal modulation and demodulation. Product technical parameters:

GENERAL:

GSM Frequency allocation Channel band width Items GSM850 GSM900 DCS PCS TX(Uplink)

:824M-849MHZ RX(Downlink)

:869M-894MHZ TX(Uplink)

:880M-915MHZ RX(Downlink)

:925M-960MHZ TX(Uplink):

1710M-1785MHZ RX(Downlink):

1805M-1880MHZ TX(Uplink):

1850M-1910MHZ RX(Downlink):

1930M-1990MHZ 200KHz 200KHz 200KHz 200KHz Channel 128-251 975-1023 0-124 512-885 512-810 GMSK,BT=0.3, 8PSK GMSK,BT=0.3, 8PSK GMSK,BT=0.3, 8PSK GMSK,BT=0.3, 8PSK Modulation

(for EGPRS)

(for EGPRS)

(for EGPRS)

(for EGPRS) 12 12 12 12 12 12 12 12 45MHz 45MHz 95MHz 80MHz Fn=824.2+(N-12 8) *0.2 Fn=880.2+(N-9 75) *0.2 Fn=1710.2+(N-51 2)*0.2 N: Channel No. N: Channel No. N: Channel No. Unit: MHz Unit: MHz Unit: MHz Fn=1850.2+(N-512

)*0.2 N: Channel No. Unit: MHz GPRS Class EDGE Class TX/RX channel space

(Fn)Freq. calculating formula WCDMA Frequency allocation Channel band width Modulation HSUPA Category HSDPA Category HSPA+

Category DC-HSPA+

Category TX/RX channel space

(Fn)Freq. calculating formula Items BAND1 BAND2 BAND4 BAND5 BAND8 TX(Uplink) TX(Uplink)

:1920-1980MHZ

:1850-1910MHZ RX(Downlink) RX(Downlink)

:2110 -

2170MHZ

:1930 -

1990MHZ TX(Uplink) Z RX(Downlink)

:2110 -

2155MHZ

:1710-1755MH TX(Uplink) TX(Uplink)

:824-849MHZ RX(Downlink)

:869-894MHZ

:880-915MHZ RX(Downlink)

:925-960MHZ 5MHz 5MHz 5MHZ 5MHz 5MHz Channel 9612-9888 9262-9538 8562-8763 4132-4233 2712-2863 UL:BPSK/QPSK

/16QAM UL:BPSK/QPSK

/16QAM UL:BPSK/QPSK

/16QAM UL:BPSK/QPSK

/16QAM UL:BPSK/QPSK

/16QAM DL: QPSK

/16QAM/64QAM DL: QPSK

/16QAM/64QAM DL: QPSK

/16QAM/64QA M DL: QPSK

/16QAM/64QA M DL: QPSK

/16QAM/64QA M 7 10 14 24 7 10 14 24 7 10 14 24 7 10 14 24 7 10 14 24 190MHz 80MHz 400MHZ 45MHz 45MHz Fn = 1922.4 +

(N-9612) *0.2 N: Channel No. Fn = 1852.4 +

(N-9262) *0.2 N: Channel No. Unit: MHz Unit: MHz Fn = 1712.4 +

(N-8562) *0.2 N: Channel No. Unit: MHz Fn = 826.4 +

(N-4132) *0.2 Fn =882.4 +

(N-2712) *0.2 N:Channel No. N: Channel No. Unit: MHz Unit: MHz LTE Items BAND2 BAND3 BAND5 BAND7 BAND8 TX(Uplink) TX(Uplink) TX(Uplink)

:1710-1785MH TX(Uplink) :824-

:2500-2570MH TX(Uplink) Frequency

:1850-1910MHZ 849MHZ

:880-915MHZ allocation RX(Downlink) RX(Downlink) RX(Downlink) :8 RX(Downlink) RX(Downlink)

:1930-1990MHZ

:1805-1880MH 69-894MHZ

:2620-2690MH

:925-960MHZ Z Z Z Z Channel 1.4,3,5, 1.4,3,5, band width 10,15,20MHz 10,15,20MHz 1.4,3,5, 10 MHz 5,10,15,20MHz 1.4,3,5,10 MHz 18600 -19199 19207-19943 20407-20643 20775-21425 21457-21793 QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM/6 QPSK/16QAM QPSK/16QAM

/64QAM

/64QAM

/64QAM

/64QAM Category 4 4 4 4 QPSK/16QAM 4QAM 4 45 MHZ 80MHz 95MHz 120MHZ 45MHz Channel UPLINK Modulation UL DL Modulation TX/RX channel space Items BAND4 BAND28 BAND12 BAND13 BAND17 TX(Uplink) TX(Uplink) TX(Uplink) TX(Uplink) TX(Uplink) Frequency allocation

:1710-1755MHZ

:703-748MHZ

:699-716MHZ

:777-787MHZ

:704-716MHZ RX(Downlink) RX(Downlink) RX(Downlink) RX(Downlink) RX(Downlink)

:2110-2155MHZ

:758-803MHZ 729-746MHZ

:746-756MHZ

: 734-746MHZ Channel 1.4,3,5, 3,5, band width 10,15,20MHz 10,15,20MHz 1.4,3,5, 10MHz 5, 10MHz 5, 10MHz Channel UPLINK 19950 -20399 27360-27659 23010 23179 23180 23279 23730-23849 Modulation QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM Modulation QPSK/16QAM QPSK/16QAM QPSK/16QAM

/64QAM

/64QAM

/64QAM

/64QAM QPSK/16QAM QPSK/16QAM

/64QAM Category 4 4 4 4 4 400 MHz 55MHz 30MHZ 31MHZ 30MHZ UL DL TX/RX channel space Items BAND66 TX(Uplink) Frequency

:1710-1780MHZ allocation RX(Downlink)

:2110-2180MHZ Channel 1.4,3,5, band width 10,15,20MHz Channel UPLINK Modulation UL DL Modulation 131972 -132671 QPSK/16QAM QPSK/16QAM

/64QAM Category 4 TX/RX channel space 400MHz BT Specs:

Items Frequency Range RF Power Output Values 2400 MHz 2483.5 MHz 10.5dBm Modulation GFSK/8-DPSK//4-DQPSK Number or channels Channel spacing BR EDR BR EDR LE LE 79 40 1MHz 2MHz Version v2.1+EDRv3.0+HSv4.2/LE v5.0LE-2M No support WiFi Specs:

Frequency range 2.4G 2.412 GHz 2.462 GHz for b/g/n(HT20) 2.422GHz 2.452GHz for n(HT40) 5G 5.15 GHz

-- 5.35GHz(UNII 12A ) 5.725 GHz -- 5.85 GHz (UNII 3) 802.11b,802.11g, 802.11n HT20 HT40,802.11ac 12 dBm +1.0/-1.0 dBm 12 dBm +1.0/-1.0 dBm 6.5 dBm +1.0/-1.0 dBm DSSS/OFDM/16QAM/64QAM 11 for US 5MHz 2.4G12 dBm +1.0/-1.0 dBm5G6.5 dBm +1.0/-1.0 dBm IEEE RF power 802.11b RF power 802.11g RF power 802.11n RF power 802.11ac Modulation Number of channels Channel spacing Support Hotspot Frequency range 2.4G: 2.412GHz 2.462GHz(HT20) hotspot Support Peer-to-Peer No support DFS detection No support 2.422GHz 2.452GHz(HT40) 5G 5.15 GHz

5.35GHz(UNII 12A ) 5.725 GHz --

5.85 GHz (UNII 3) RECOMMENDABLE OPERATION CONDITION:

Normal Supply Voltage (V d.c.) 3.85V Maximum Extreme Supply Voltage (V d.c.) Minimum Extreme Supply Voltage (V d.c.) Minimum Extreme Temperature**

SIM/USIM Voltage 4.35V 3.5V

-10 degree 1.8 / 3v ABSOLUTE MAXIMUM RATING of RF PA:

PA parameter Specification supply Min. 3.0 supply

Typ. 3.8v

Max. 4.6v 2.5A Power voltage Power current Antenna Description:

Air Interface Band/MHz Type Antenna Description Simultaneous Transmission GSM NO MIMO 850/900/1800/1900 VOICE Voice Over Digital Transport

(data) GPRS EGPRS UMTS RMC HSDPA HSUPA DC-HSDPA LTE BAND 2.4G 5G 2450 DATA DATA VOICE DATA DATA DATA DATA DATA DATA DATA DATA YES BT OR WIFI NA YES,GSM,GPRS, EGPRS,RMC,HSDPA,HSUPA DC-HSDPA,HSPA+,LTE WCDMA MIMO:1T2R LTE WIFI Bluetooth NO MIMO 2.2. BB:

BB (Base-Band) section is the control & management center of the mobile where OS (Operate System) running and provides the MMI for the mobile. Main Features:

The basic MT8766 system solution consists of RF transceiver: MT6177M, Power management: MT6357, Wireless connectivity, including WLAN, Bluetooth, GPS, and FM radio: MT6631N. Architecture and baseband processing features Applications:

Quad ARM high performance Cortex-A53@2.0GHz 12nm process for lower active power dissipation Support LPDDR3 up to 4GB, single channel with 32bit data bus width, clock up to 1866MHz, Support LPDDR4X up to 8GB, dual channels with 16bit data bus width, clock up to 3200MHz. Memory support features Support LPDDR3 up to 4GB, single channel with 32bit data bus width, clock up to 1866MHz, Support LPDDR4X up to 8GB, dual channels with 16bit data bus width, clock up to 3200MHz. External memory: v5.1 eMMC/SD devices 3. Signal Flow Brief of the mobile signal flow as below:

3.1. Receiver principle The aerial signal mobile received go to RF Connector, and then transmit to transceiver via the selected band in RF switcher & SAW filter. Four IQ signals input to CPU, Go through A/D, DSP, and D/A section in CPU, then output to receiver. 3.2. Transmitter principle Audio signal input from Microphone, Microphone convert the voice signal to analog signal and input to CPU. Go through A/D, DSP, and D/A section, output to transceiver by IQ signals, These analog input signals are buffered, filtered by low-pass filters, amplified, and then applied to the quadrature upconverter mixers in transceiver(MT6177M). Then output to PA, go through duplexer, ASM to antenna. 4.1 P-Sensor mechanism and algorithms Circuitry measures capacitance of sense electrode (attached to the IC sense pin) relative to ground (Cx). Measurement occurs by continual charging of Cx, discharging into internal reference capacitor (Cs), until trip voltage is reached. Quantity of consecutive charges for Cs to reach trip voltage is counted, and referred to as the current sample. User interaction determined from the current sample deviations from the baseline (long term average or LTA). Use PCB pads to sense a touch or proximity event. 4.2 How Proximity Sensor works Proximity Sensor using for reducing RF conductive power when testing Body SAR with 0mm. When user hand or other parts of body close to the antenna within the sensor trigger distance, RF output power will be reduced, the device working with low power, otherwise the device working with normal power. End of this file