Rane ecm64sch 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 H:ECM64104177-1.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 18 ECM 64 CONNECTORS 103344Aof ACTION: 103344A MIC 4 + - GND MIC 3 + - GND MIC 2 + - GND MIC 1 + - GND SHEET 2 CHAN 4 + CHAN 4 - SHEET 2 CHAN 3 + CHAN 3 - SHEET 2

2、CHAN 2 + CHAN 2 - CHAN 1 + CHAN 1 - EG AUDIO SIDE EG DIGITAL SIDE AEC TISHEET 4 SHEET 3&4 EG AEC REF. 3 2 1 411 Z1A 4574 C1 100pf . C4 EMI 220pf C9 1/50V LINE IN + - GND SHEET 2 LINE IN + LINE IN - SHEET 3 MIX IN AEC REF + - GND GND AEC OUT OUT 1 + - GND SHEET 3 OUT 1+ OUT 1- GND AEC REF. 2 3 4 1 5

3、J2A EURO 5 POS R26 47.5K R27 47.5K +5V OUT 4SHEET 4 HYBRID RX SHEET 3,4 L15 3T C23 0.1 C24 0.1 +C77 470/16V EG /DTMF /WR /RD AD0 AD1 AD2 AD3 RS0 /RI /IRQ MISO SCK /6420 /6420_RST +8V-8V +5V + C78 22/16V + C79 22/16V EG C25 0.1 +C80 22/16V EG C26 0.1 HYBRID CTRL SHEET 7 OFF HOOK EG R2 10K 10 9 8 Z1C

4、4574 C3 100pf R29 10K R49 301 . C5 EMI 220pf L17 .4 L16 3T L18 .4 L19 .4 +5V IN AUX IN OUT 2 + - GND OUT 3 + - GND OUT GND SHEET 3 OUT 2+ OUT 2- SHEET 4 OUT 3+ OUT 3- LINE/CODEC IN SHEET 2 AUX IN + AUX IN - 2 3 4 1 5 J3A EURO 5 POS +12V-12V C193 0.1 HYBRID RX 67 8 Z41D DG212 1110 9 Z41C DG212 MIX CT

5、RL SHEET 7 INTAEC REF SHEETS 3,6 OUT 1 . C244 EMI 220pf R169 301 LB1LB2LB3LB4 /AEC MUTE AEC L/H 7 8 9 6 10 2 3 4 1 5 11 12 J1A EURO 12 POS SHEET 2 7 8 9 6 10 2 3 4 1 5 11 12 J4A EURO 12 POS 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 J8 12 34 56 78 910 1112 1314 1516 1718 1920

6、2122 2324 J10A OUT 4 SHEET 3,4,5 /AEC RDY OUT 1 8 1 6 V+ 4 V- 7 GND 3 VL 5 2 Z49 IC SW DG419 -12V +5V +12V C55 0.1 C131 0.1 EG OUT1AEC REF C53 0.1 + C76 22/16V EG /P_LINE ST1 HYBRID DIGITAL 12 13 14 Z1D 4574 AEC TO AEC TO OF AEC1 OF AEC 1 SHEET 7,8 /DTMFTX AEC TIAEC RI Audio Input 104177-2.sch Out1

7、& Out2 104177-3.sch Out 3 & Hybrid 104177-4.sch Power & Pink Noise 104177-5.sch Avg Amps 104177-6.sch Digital I/O 104177-7.sch Processor 104177-8.sch ST5 ST2ST4 AEC ST6 EG HYBRID R30 10K EG 67 8 Z20D DG212EG R46 10K +5V EG EG C169 0.1 C198 0.1 C215 0.1 C234 0.1 C238 0.1 EG EG Place around ECA 1 12 3

8、4 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 J9 C239 0.1 RadioFans.CN 收音机爱 好者资料库 H:ECM64104177-2.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 28 ECM 64 AUDIO INPUTS 103344Aof ACTION: 103344A R52 100 C95 0.01 CHAN 1 - CHAN 1 + R68 2

9、0 R3 10K R53 100 C99 220pf +12V CHAN 2 - CHAN 2 + -12V+12V C11 1/50V CHAN 3 - CHAN 3 + EG SHEET 1 CHANNEL 1 SHEET 1 SHEET 1 CHANNEL 2 SHEET 1 SHEET 1 CHANNEL 3 SHEET 1 J1:11 J1:10 J1:8 J1:7 J1:5 J1:4 PHANTOM + C103 47/25V + C104 47/25V + C111 47/25V 7 4 RG1 RG2 5 6 3 1 8 2 Z8 SSM-2017 2 3 41 S6 +6dB

10、+40dB +50dB EG EG R54 100 C96 0.01 R69 20 R4 10K R55 100 C100 220pf C12 1/50V EG + C105 47/25V + C106 47/25V + C112 47/25V 2 3 41 S7 +6dB+40dB +50dB EG EG R56 100 C97 0.01 R70 20 R5 10K R57 100 C101 220pf C13 1/50V EG + C107 47/25V + C108 47/25V + C113 47/25V 7 4 RG1 RG2 5 6 3 1 8 2 Z9 SSM-2017 2 3

11、41 S8 +6dB+40dB +50dB EG 7 4 RG1 RG2 5 6 3 1 8 2 Z10 SSM-2017 R58 100 C98 0.01 CHAN 4 - CHAN 4 + R71 20 R6 10K R59 100 C102 220pf C14 1/50V EG SHEET 1 CHANNEL 4 SHEET 1 J1:2 J1:1 + C109 47/25V + C110 47/25V + C114 47/25V 7 4 RG1 RG2 5 6 3 1 8 2 Z11 SSM-2017 2 3 41 S9 +6dB+40dB +50dB EG EG EG EG EG E

12、G R73 10K R74 10K R75 10K R76 10K R77 10K R78 10K R79 10K R80 10K R40 100K R81 1K R82 1K R41 100K R83 1K R84 1K R42 100K R85 1K R86 1K R43 100K R87 1K R88 1K .C216 EMI 220pf .C217 EMI 220pf .C218 EMI 220pf .C219 EMI 220pf .C220 EMI 220pf .C221 EMI 220pf .C222 EMI 220pf . C223 EMI 220pf EG +C115 100/

13、10V +C116 100/10V +C117 100/10V +C118 100/10V C27 0.1 C28 0.1 EG -12V+12V C29 0.1 C30 0.1 EG -12V+12V C31 0.1 C32 0.1 EG -12V+12V C33 0.1 C34 0.1 EG 18 27 36 45 S10 LINE IN LINE IN + LINE IN - SHEET 1 SHEET 1J2:4 J2:3 C15 1/50V EG 5 6 7 Z2B 4574 C119 100pf R7 10K R8 10K C120 100pf R91 5.11K 3 2 1 41

14、1 Z2A 4574 12 13 14 Z2D 4574 R92 5.11K R44 100K EG .C224 EMI 220pf .C225 EMI 220pf +12V-12V C2 0.1 R10 3.16K AUX IN AUX IN + AUX IN - SHEET 1 SHEET 1J3:4 J3:3 C16 1/50V EG 10 9 8 Z2C 4574 C121 100pfR11 10K R12 10K C122 100pf R93 5.11K R94 5.11K R45 100K EG .C226 EMI 220pf .C227 EMI 220pf R14 3.16K D

15、AC AGND 2 VREF 3 V+ 1 V- 12 DGND 13 CLK 14 DATA 15 LD 11 WRITE 10 45 21 6 19 8 17 20 7 18 9 16 DAC DAC DAC DAC DAC DAC MSTR SET 22 MSTR OUT 23 24 Z12 IC VCA SSM2160 R15 10K R16 10K EG 3 2 1 411 Z4A 4574 C123 100pf 5 6 7 Z4B 4574 C124 100pf R17 10K 10 9 8 Z4C 4574 C125 100pf R18 10K EG EG + C134 3.3/

16、16V C17 22/25 C18 22/25 C19 22/25 + C148 10/50V C37 0.1 EG EG -8V + C149 10/50V C38 0.1 EG +8V S/LD1 SCK MISO MIX CTRL SHEET 3,4,7 8 3 2 1 4 Z3A 4580 5 6 7 Z3B 4580 +12V-12V C35 0.1 +8V-8V C36 0.1 3 2 1 411 Z47A 4574 C200 100pf R157 10K R161 1.58K EG 5 6 7 Z47B 4574 C201 100pf R158 10K R162 1.58K EG

17、 10 9 8 Z47C 4574 C202 100pf R159 10K R163 1.58K EG 12 13 14 Z47D 4574 C203 100pf R160 10K R164 1.58K EG + C206 47/25V + C207 47/25V +C208 47/25V + C209 47/25V +8V-8V C199 0.1 EGEG SHEET 6 INPUT SIGNALS MIC SIG 3 SHEET 6 MIC SIG 4 SHEET 6 SHEET 6 MIC SIG 1 MIC SIG 2 2 3 4 5 6 1 R95 10.0K SIP R9 3.16

18、K R13 3.16K MIC SIG 1 MIC SIG 2 MIC SIG 3 MIC SIG 4 LINE SIG AUX SIG AUX IN LINE IN MIC MIX AUX SIG LINE SIG SHEET 3,4,6 SHEET 6 SHEET 6 H:ECM64104177-3.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 38 ECM 64 AUDIO OUTPUTS 1 & 2 103344Aof ACTION: 10

19、3344A 4 3 IN G 6 7 8 1 2 5 + - Z17 SSM-2142 +12V -12VEG . C228 EMI 220pf . C229 EMI 220pf C39 0.1 C40 0.1 DAC AGND 2 VREF 3 V+ 1 V- 12 DGND 13 CLK 14 DATA 15 LD 11 WRITE 10 45 21 6 19 8 17 20 7 18 9 16 DAC DAC DAC DAC DAC DAC MSTR SET 22 MSTR OUT 23 24 Z13 IC VCA SSM2160 AUX IN LINE IN AEC TO MIC MI

20、X HYBRID RX 12 13 14 Z4D 4574 C126 100pf EG + C135 3.3/16V C20 1/50V + C150 10/50V C41 0.1 EG EG -8V + C151 10/50V C42 0.1 EG +8V DAC AGND 2 VREF 3 V+ 1 V- 12 DGND 13 CLK 14 DATA 15 LD 11 WRITE 10 45 21 6 19 8 17 20 7 18 9 16 DAC DAC DAC DAC DAC DAC MSTR SET 22 MSTR OUT 23 24 Z14 IC VCA SSM2160 AUX

21、IN LINE IN AEC TO MIC MIX HYBRID RX 3 2 1 411 Z5A 4574 C127 100pf EG + C136 3.3/16V + C152 10/50V C43 0.1 EG EG -8V + C153 10/50V C44 0.1 EG +8V S/LD2 SCK MISO S/LD3 SCK MISO OUT 2- OUT 2+ OUT 2 SHEET 1 SHEET 1 J4:8 J4:7 4 3 IN G 6 7 8 1 2 5 + - Z18 SSM-2142 +12V -12VEG . C230 EMI 220pf . C231 EMI 2

22、20pf C45 0.1 C46 0.1 C21 1/50V INPUT SIGNALS SHEET 2 MIX CTRL SHEET 2,4,7,8 R19 15.8K R20 15.8K P. NOISE P. NOISE R21 10K R22 10K +12V-12V C194 0.1 MIX IN AEC REFSHEET 1 EG 5 6 7 Z1B 4574 C165 100pf 32 1 Z41A DG212 1415 16 Z41B DG212 AUX INAEC REF LINE INAEC REFAUX IN LINE IN HYBRID RX R1 10K R28 10

23、K R147 10K R154 10K -12V +5V +12V V+ 13 V- 4 VL 12 GND 5 Z41E DG212 C235 0.1 C245 0.1 OUT 1- OUT 1+ OUT 1 SHEET 1 SHEET 1 J4:11 J4:10 OUT 1SHEET 6 OUT 2SHEET 6 2 3 4 5 6 1 R96 10.0K SIP 2 3 4 5 6 1 R97 10.0K SIP EG OUT 1 OUT 2 + C170 22/16V + C214 22/16V H:ECM64104177-4.SCH16-May-2000 CHECKED:DRAWN:

24、 SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 48 ECM 64 AUDIO OUTPUTS 3 & 4 103344Aof ACTION: 103344A 12 13 14 Z5D 4574 32 1 Z20A DG212 4 3 IN G 6 7 8 1 2 5 + - Z19 SSM-2142 +12V -12V EG . C232 EMI 220pf . C233 EMI 220pf C47 0.1 C48 0.1 C254 100pf DAC AGND 2 VREF 3 V+ 1 V- 12 D

25、GND 13 CLK 14 DATA 15 LD 11 WRITE 10 45 21 6 19 8 17 20 7 18 9 16 DAC DAC DAC DAC DAC DAC MSTR SET 22 MSTR OUT 23 24 Z15 IC VCA SSM2160 AUX IN LINE IN AEC TO MIC MIX HYBRID RX 5 6 7 Z5B 4574 C129 100pf EG + C137 3.3/16V C22 1/50V + C154 10/50V C49 0.1 EG EG -8V + C155 10/50V C50 0.1 EG +8V DAC AGND

26、2 VREF 3 V+ 1 V- 12 DGND 13 CLK 14 DATA 15 LD 11 WRITE 10 45 21 6 19 8 17 20 7 18 9 16 DAC DAC DAC DAC DAC DAC MSTR SET 22 MSTR OUT 23 24 Z16 IC VCA SSM2160 AUX IN LINE IN AEC TO MIC MIX 10 9 8 Z5C 4574 EG + C138 3.3/16V + C156 10/50V C51 0.1 EG EG -8V + C157 10/50V C52 0.1 EG +8V EG S/LD4 SCK MISO

27、S/LD5 SCK MISO INPUT SIGNALS SHEET 2 MIX CTRL SHEET 8 1415 16 Z20B DG212 1110 9 Z20C DG212 AUX INAEC LINE INAEC MIC MIXAEC AUX IN LINE IN MIC MIX OUT 4SHEET 1,6 R23 15.8K P. NOISE P. NOISE R24 10K C130 100pf R25 15.8K OUT 3- OUT 3+ OUT 3 SHEET 1 SHEET 1 J4:4 J4:5 OUT 3SHEET 6 2 3 4 5 6 1 R99 10.0K S

28、IP 2 3 4 5 6 1 R98 10.0K SIP 2 3 4 5 6 1 R100 10.0K SIP OUT 4 OUT 3 -12V +5V +12V V+ 13 V- 4 VL 12 GND 5 Z20E DG212 C236 0.1 C237 0.1 EG AEC TISHEET 1 J5:7 EG H:ECM64104177-5.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 58 ECM 64 PWR SUP/PINK NOISE

29、 103344Aof ACTION: 103344A Q1 13 D2 4 D3 5 D1 1 D4 6 Q4 8 CLK 3 Q4 9 Q3 10 Q2 11 Q2 12 VDD 14 VSS 7 Z22 CD4006 1 2 3 147 Z24A CD4070 Q1 13 D2 4 D3 5 D1 1 D4 6 Q4 8 CLK 3 Q4 9 Q3 10 Q2 11 Q2 12 VDD 14 VSS 7 Z23 CD4006 5 6 4 Z24B CD4070 8 9 10 Z24C CD4070 +12V C56 0.1 C57 0.1 EG +12V EG EG R111 10K R1

30、12 10K D1 1N4148 +12V C58 0.1 EG D2 1N4148 R113 10K + C162 1/50V 12 13 11 Z24D CD4070 C172 0.027 R129 30.1K R114 10K R130 3.01K R131 80.6K R132 2.20M 5 6 7 Z6B TL072 EG P. NOISE SHEET 7 R107 10.0K NOISE SHEET 3,4 P. NOISE C174 0.1 C173 0.0056 C163 0.1 C175 0.01 C171 120pf +C241 1000/25V +C242 1000/2

31、5V +12V -12V EG 32 1 ADJ I O 100A 00472 56 4 ADJ I O 100B 00472 +C210 47/25V +C211 47/25V R165 243 R166 243 R167 1.33K R168 1.33K +C204 10/50V +C205 10/50V +C212 47/25V +C213 47/25V +8V -8V D28 1N5817 D29 1N5817 C159 0.1 C160 0.1 3 2 1 84 Z6A TL072 +8V -8V C158 0.1 EG D32 1N4004 D33 1N4004 FRONT VIE

32、W D31 1N4004 EG 3 5 2 41 6 J11 L1 3T C72 0.1 L2 3T C161 0.1 L3 3T C167 0.1 +C243 1000/25V +5V EG ST3 LB5 L-BKT .375 EG H:ECM64104177-6.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 Mike SlatteryEMS 68 ECM 64 DC AVERAGE AMPS 103344Bof ACTION: 103344B 3 2 1 411 Z7A

33、4574 D3 1N4148 EG D4 1N4148 +C140 3.3/16V EG 5 6 7 Z7B 4574 D5 1N4148 EG D6 1N4148 +C141 3.3/16V EG 10 9 8 Z7C 4574 D7 1N4148 EG D8 1N4148 +C142 3.3/16V EG HYBRID RX LINE IN MIC MIXSHEET 2 SHEET 2 SHEET 2 12 13 14 Z7D 4574 D9 1N4148 EG D10 1N4148 +C143 3.3/16V EG AUX IN SHEET 1 R117 8.06K R118 8.06K

34、 R119 8.06K R120 8.06K R133 47.5K R134 47.5K R135 47.5K R136 47.5K R60 100 R61 100 R62 100 R63 100 MIC SIG 1SHEET 2 MIC SIG 2SHEET 2 MIC SIG 3SHEET 2 MIC SIG 4SHEET 2 LINE SIGSHEET 2 C132 100pf EG C176 0.1 C177 0.1 C178 0.1 C179 0.1 C180 0.1 +8V-8V C59 0.1 +12V-12V C60 0.1 D11 1N4148 D12 1N4148 +C14

35、4 3.3/16V EG OUT 1SHEET 3 5 6 7 Z40B 4574 D13 1N4148 EG D14 1N4148 +C145 3.3/16V EG OUT 3 SHEET 3 R121 12.4K R122 12.4K R137 44.2K R138 44.2K R64 100 R65 100 C181 0.1 C182 0.1 R141 20K AUX SIGSHEET 2 R142 20K 10 9 8 Z40C 4574 D15 1N4148 EG D16 1N4148 +C146 3.3/16V EG OUT 4 SHEET 4 SHEET 8 R123 12.4K

36、 R139 44.2K R66 100 C183 0.1 5 4 2 312 Z25A LM339 -8V +8V 7 6 1 Z25B LM339 R144 100 EG +8V R89 1K R148 511 1.16V .024V EG R47 100K R145 75 EG +C164 1/50V D19 GRN D21 RED C133 100pf EG C184 0.1 9 8 14 Z25C LM339 11 10 13 Z25D LM339 R146 100 EG +8VR90 1K R149 511 3.9V .06V EG R48 100K D20 GRN D22 RED

37、SHEET 3OUT 1 SHEET 3 OUT 4 SHEET 3 OUT 2 8 3 2 1 4 Z26A 4580 5 6 7 Z26B 4580 3 2 1 411 Z40A 4574 EG +8V-8V C61 0.1 12 13 14 Z40D 4574 D17 1N4148 EG D18 1N4148 +C147 3.3/16V EG OUT 2 SHEET 4 R126 12.4K R140 44.2K R67 100 C185 0.1 R143 20K HYBRID RXSHEET 1 OUT 3 R124 28.7K R150 4.75K R151 6.34K R125 6

38、.81K 2 3 4 5 6 1 R102 10.0K SIP SHEET 4 2 3 4 5 6 1 R101 10.0K SIP OUT 1 MIC MIX LINE IN AUX IN HYBRID RX ADC0 ADC1 ADC2 ADC3 ADC4 ADC5 ADC6 ADCS IN ADC7 HYBRID RX LINE SIG AUX SIG MIC SIG 1 MIC SIG 2 MIC SIG 3 MIC SIG 4 OUT 1 OUT 2 OUT 3 OUT 4 OUT 4 OUT 3 OUT 2 H:ECM64104177-7.SCH16-May-2000 CHECKE

39、D:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 78 ECM 64 IO PROCESSING 103344Aof ACTION: 103344A +5V EG LDATA /LATCH1 D 13 Q0 4 Q1 5 S0 1 Q2 6 S1 2 Q3 7 S2 3 Q4 9 Q5 10 G 14 Q6 11 CLR 15 Q7 12 VCC 16 GND 8 Z27 74HC259 S2 S1 S0 EG SHEET 1 +12V LATCHES SHEET 8 /RST J10:20

40、J7:11 J7:12 D23 YEL D24 YEL OH_LED PRIV_LED RING_LED PWR_LED SHEET 8COM_LED SHEET 8 OFF HOOK LDATA /LATCH2 D 13 Q0 4 Q1 5 S0 1 Q2 6 S1 2 Q3 7 S2 3 Q4 9 Q5 10 G 14 Q6 11 CLR 15 Q7 12 VCC 16 GND 8 Z28 74HC259 S2 S1 S0 /RST MIX CTRLSHEET 2-4 SER 14 SRCLK 11 OE 10 RCLK 12 S/L 13 A 15 B 1 C 2 D 3 E 4 F 5

41、 G 6 H 7 QH 9 VCC 16 GND 8 Z30 IC S REG 74HC589 MEM1 MEM2 MEM3 MEM4 SER 14 SRCLK 11 OE 10 RCLK 12 S/L 13 A 15 B 1 C 2 D 3 E 4 F 5 G 6 H 7 QH 9 VCC 16 GND 8 Z31 IC S REG 74HC589 ADD1 ADD2 ADD3 ADD4 VOL UP BTN VOL DWN BTN OFF HOOK BTN PRIVACY BTN MUTE BTN /6420 /MRP /FP BTNS /MRP /FP BTNS MOSI SCK S/L

42、D6 SCK S/LD6 MOSI 18 27 36 45 S11 DIP 4P EG EG ADD1 ADD2 ADD3 ADD4 RW 232 ADDRESS C62 0.1 +5V EG C63 0.1 +5V EG C64 0.1 C65 0.1 AA_LED MUTE_LED +5V J7:13 OFF HOOK RING PRIVACY MUTE AA POWER COM SER CTRL SHEET 1,8 PORT STEP BTN R127 10K +5V SER 14 SRCLK 11 OE 10 RCLK 12 S/L 13 A 15 B 1 C 2 D 3 E 4 F

43、5 G 6 H 7 QH 9 VCC 16 GND 8 Z32 IC S REG 74HC589 VOL UP CTRL VOL DWN CTRL OFF HOOK CTRL PRIVACY CTRL MUTE CTRL /CTRL BTNS SCK S/LD6 MOSI EG C66 0.1 +5V EG /CTRL BTNS /NOISE NOISESHEET 5 AEC L/H AUX INAEC REF LINE INAEC REF LDATA /LATCH3 D 13 Q0 4 Q1 5 S0 1 Q2 6 S1 2 Q3 7 S2 3 Q4 9 Q5 10 G 14 Q6 11 C

44、LR 15 Q7 12 VCC 16 GND 8 Z42 74HC259 S2 S1 S0 /RST C10 0.1 INTAEC REF /RI R155 10K +5V MIC MIXAEC LINE INAEC AUX INAEC /AEC MUTE /EEP1 1I 1 1O 18 2I 2 3I 3 4I 4 5I 5 6I 6 7I 7 8I 8 GND 9 DI 10 8O 11 7O 12 6O 13 5O 14 4O 15 3O 16 2O 17 Z29 ULN2803 J7:7 +5V EG +5V EG 2 3 4 5 6 1 R103 10.0K SIP . 109.

45、87. 65. 43. 21Y Y Y Y Y D25 LED BAR 5YEL +5V 2 3 4 5 6 1 R156 10.0K SIP R170 10K +5V /P_LINE /FB_0 /FB_1 /6420_RST LDATA /LATCH4 D 13 Q0 4 Q1 5 S0 1 Q2 6 S1 2 Q3 7 S2 3 Q4 9 Q5 10 G 14 Q6 11 CLR 15 Q7 12 VCC 16 GND 8 Z50 74HC259 S2 S1 S0 /RST C166 0.1 +5V EG R108 10K +5V /AEC RDY EXTERNAL CONTROL EG

46、 MRP &MEM1 MEM2 MEM3 MEM4 OFF HOOK CTRL /OFF HOOK PRIVACY CTRL /PRIVACY VOL UP CTRL VOL DWN CTRL MUTE CTRL /RING R31 100K R32 100K R33 100K R34 100K R35 100K R36 100K R37 100K C81 0.01 C82 0.01 C83 0.01 C84 0.01 C85 0.01 C86 0.01 C87 0.01 C88 0.01 VOL UP VOL DWN OFF HOOK EG VOL UP BTN VOL DWN BTN OF

47、F HOOK BTN 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 J7 MDB15 FEM R38 100K C89 0.01 C90 0.01 C91 0.01 C92 0.01 +5V R39 100K /MUTE C93 0.01 PORT STEP PORT STEP BTN 21 S5A R152 10K SIP R104 10K +5V +5V 1 2 S2 1 2 S3 1 2 S4 RS0 OUT1AEC REF /DTMFTX HYBRID CTRL SHEET 1 /OFF HOOK /PRIVACY /RING /MUTE C54 0.1 C1

48、28 0.1 C139 0.1 C168 0.1 H:ECM64104177-8.SCH16-May-2000 CHECKED:DRAWN: SHEET:10802 47th Avenue West Mukilteo WA 98275-5098 M. SLATTERYEMS 88 ECM 64 PROCESSOR 103344Aof ACTION: 103344A EG C186 22pf +5V C187 22pf +5VEG EG AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 A0 A1 A2 A3 A4 A5 A6 A7 +5V +5V A8 A9 A10 A11 A1

49、2 A13 R153 4.75K +5V C67 0.1 R72 20 + C188 10/50V +C189 10/50V + C190 10/50V +C191 10/50V +5V EG EG+5V +5V -18dB -15dB -12dB -9dB -6dB -3dB 0dB +6dB /LATCH1 /LATCH2 S0 S1 S2 LDATA MIX CTRL SHEETS 2,3,4 EG EG OH_LED PRIV_LED RING_LED PWR_LED COM_LED SHEET 7 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 A13 26 A14 27 CE 20 OE 22 VPP 1 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 VCC 28 GND 14 Z36 IC PROM 27C256-15 A0 A1 A2 A3 A4 A5 A6 A7 +5V EG EG OC 1 C 11 1D 2 2D 3 3D 4 4D 5 5D 6 6D 7 7D 8 8D 9 1Q 19 2Q 18 3Q 17 4Q 16 5Q 15 6Q 14 7Q 13 8Q 12 GND 10 VCC 20