Modem Analog schem

FCC ID: NP42424016-001

Schematics

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FCCID_7122

A B C D E F G H AVCC This information is the property of DATARADIO INC. and is confidential No reproduction or distribution without approval. COPYRIGHT C 1985-97 : DATARADIO INC. R25 AVCC 10K 3 5 5 R32 Q4 R36 1 (1) PDRST MMBT3904 470K 10K DVCC 2 NEG_PEAK(1) U9C 1 11 VDD D6 8 + (1) DATA SDI MBD301 R33 9 10 C22 (1) CLK CLK /RS 3 7 6 9 220K 6 (1) DIGIPOT_EN /CS /SHDN - 224 35V_A - 8 7 U7C U7B 1 5 10 5 DGND AGND + + LMC6484 LMC6484 AD8402AR50 C23 R27 R26 103 220K 10K (1) SLICER POS_PEAK (1) +2.5V 3 4 +2.5V 4 D7 + +2.5V MBD301 C29 R42 R46 1 R29 13 470K 224 35V_A - 3 14 R30 10K U7D 10K 12 R53 R55 + R35 1 Q5 LMC6484 10K 12 10K + 6.8K U9A MMBT3904 6 10K - W1 7 10 2 U8B - 13 14 R28 5 8 + U8C RXS (1) A1 B1 9 10K TLC2274 TLC2274 +2.5V AD8402AR50 R37 AVCC 68K R45 4 470K AVCC 2 + - C26 1 +2.5V 4 U7A 3 3 3 (3) DET_AUDIO + LMC6484 13 - + - 14 104 11 U8D R34 12 + - TLC2274 470K 11 TP4 R71 (1) FILTER_CK 1K R24 (3) TEST_AUDIO +2.5V 5 + 1K AVCC 7 U12 U10B MOD (3) 6 - U11A 5 2 U11B 4 R40 CLK V+ C13 12 2 +2.5V TLC2274 AVCC 33K X0 Y0 102 2 W2 - R68 1 13 14 4 8 15 1 3 2 R49 U8A X1 X VIN VOUT Y Y1 3 A2 B2 (1) TXA + +2.5V 1K 11 10 C25 C24 C31 C30 C39 C35 68K TLC2274 A B U9B 2 1 7 C37 104 104 104 104 104 104 2 AGND V- 102 AD8402AR50 74HC4053D 74HC4053D + 3 6 U7 U8 U10 U9 U11 U12 GND GND C45 224 35V_A LTC1069-7 (1) TX_EN AVCC R59 R58 F PRE-PRODUCTION 971224 RSSI_OUT (1) 100K E FOR NEW LAYOUT 971120 47K NOTE: R59 REMOVED FOR AVCC +2.5V REV DESCRIPTION DATE SEE NOTE R64 TBASE DIAGOSTIC BOARD 4 13 U11C AVCC 100K DATARADIO INC. 9 - 14 R65 5 16 2 + - Z0 VCC 8 12 U10D - 1 Design C.LAMBERT P/N R50 U10C + 1K U10A 10 3 4 3 Design (3) RSSI_IN TLC2274 Z1 Z RSSI (3) + + TLC2274 - C34 Draft D.NGUYEN 10K TLC2274 1 9 6 Check DATE 971224 1 102 C EN C32 11 7 R62 C33 VEE 104 8 GND 100K 104 H-NET 74HC4053D ANALOG SECTION (1) RSSI_DIR SIZE B LEVEL SHEET 2/3 DOC/N 215-03280-00F A B C D E F G H


Document Created: 2019-11-01 20:12:35
Document Modified: 2019-11-01 20:12:35
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