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J1A 12P EURO 12

GND
AUX IN SHEET 2 11 AUX IN + R110 3 R115 10k 2 4 Z38A 1/50 J12B AEC TI SHEET 4 100pF C238 R116 10k 7 4574 5 Z38B C248 3 J12C J12J +8V AEC TI J12D J12F J12H 4574 0.1 1 C247 1 2

J3A 5P EURO 5

GND AUDIO SIDE OF ECA 2
J12K J12S J12A 11 -8V C198 19

J4A 12P EURO 12

GND
L17

CHAN 1 SHEET 2 CHAN 1 + 9

OUT 1-

MIC 1 + GND
+
10k

AUX IN
3

C23 0.1

OUT 1+

GND
C5

9 J12L 2 4 6 8 J12N J12P J12R J12Q 12 14 16 18 J12E J12T

GND
17 NC 5 NC 20 NC

CHAN 2 SHEET 2 CHAN 2 + 6

OUT 2-

MIC 2 +
7

220pF

SHEET 3

OUT 2+

GND
301 C3 100pF R29 R2 6 5 4570 Z1B 7 31.6k 10k R128 R171 10k 10 9 20k

R49 6

R178

6

GND
+
1/50 13 J12M 4574 8 Z38C C249 9 J12I R105 3.32k R50 13.3k 10

CHAN 3 SHEET 2 CHAN 3 + 3

OUT 3-

MIC 3 +
4

SHEET 4

OUT 3+

GND
10k

3 1/50 C234 AEC RI 100pF R172 J12O 15 R51

GND
+
AEC TO C246 220pF 2 3 R177 20k 13 12 10k 4574 14 Z38D C250 1/50 7 J12G R30 13.3k 3.32k C240 220pF 8 4570 Z52A 4 1 C266 0.1
AEC TO

CHAN 4 SHEET 2 CHAN 4 +

J2A 5P EURO 5

GND

LINE/CODEC IN LINE IN SHEET 2 LINE IN + 2 1

AEC REF. IN
C1

.
220pF

C4 100pF R27 +12V 15.0k C9 1/50 R26 47.5k 8 2 3 1 Z1A 4 4570 Z49 8 -12V 1 2 10 R180 10k SIP Z41C DG212 11 9

1

2 3 4 5 6

4 J13A R46 10k +5V J13S J13H 1 19 +5V 8 Z41D

J13D
/AEC_RDY /DSPTX_RDY /DSPRX_RDY

SHEET 3 MIX IN AEC REF OUT 1 SHEETS 3,6 +12V -12V C55 0.1
OUT 1 R72

3.01K +5V
C131 0.1

5 4 7 3

VL V+ VGND DG419

6

11 1 7 8 6 DG212 J13Q Z20D
OUT1>AEC REF

R173 10k 3 R179 17 7
INT>AEC REF

C OC

GND VCC

10 20

C215 0.1 +12V 6 DG212 8 20k R175 100k 1
MISO

7

2 3

8

2

Q1 2222

J13G

Z21A 4

1 4580 -12V
ACTION:

MIX CTRL SHEETS 2-4,7,8 SPI CTRL SHEETS 7,8

C169 0.1

Audio Input 104035-2.sch
H:\ECM64E\104035-1.SCH 20-Oct-2000

Out1 & Out2 104035-3.sch

Out 3 & Hybrid 104035-4.sch

Power & Pink Noise Avg Amps 104035-5.sch 104035-6.sch

Digital I/O 104035-7.sch

Processor 104035-8.sch

DELETED ECA 1 CIRCUITRY, ADDED ECA 2 CIRCUITRY, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

MS

CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

+

+

3

-

4

LINE IN
J13C J13E J13I J13O 3 5 9 15 J13J J13P J13T 10 16 20

+

1

-

2

C239 100pF R109 AEC TO SHEET 3&4 R106 -8V +8V 10k 6 31.6k 5 Z21B 7

2 R169 301

MIC 4

C244 220pF .

GND

1

AEC OUT
+

4580

J13B

2

NC

DIGITAL SIDE OF ECA 2
+3.3V J13K J13L J13M 11 12 13 L15 +5V

+5V L16 .4

J10A

+ C77 22/16

.4 C24 0.1

24P M HDR

C78 22/16 +3.3V 18 Z45 74ACT573
/DSP_SS /DSP_IRQB SCK MOSI

+

C25 0.1

J13R SHEET 4 14 9 8 7 6 5 4 3 2 8D 7D 6D 5D 4D 3D 2D 1D 8Q 7Q 6Q 5Q 4Q 3Q 2Q 1Q 12 13 14 15 16 17 18 19 6 J13N -8VH J13F L18 .4 OUT 4

OUT 4

MOSI 1 SCK 3 /6420 5 /6420_RST 7 9 /P_LINE 11 /DTMFTX 13 15 17 19 21 23

2 AD3 4 AD2 6 AD1 AD0 8 10 /WR 12 /RD 14 /DTMF 16 RS0 18 /RI 20 22 /IRQ 24 + C26 0.1

C79 22/16

DIGITAL HYBRID

HYBRID RX

LB1 12,1,3

LB2 12,1,3

ECM 64 ECA I/O
SHEET:

1 of 8

104035

+

4

-

-

5

5

+

7

-

-

8

.
1

AEC REF. OUT

8

OUT 2

OUT 3

+

+

10

+

.4 C76 22/16

+5V

SHEET 3

10

-

-

-

11

4

11

OUT 1

HYBRID CTRL SHEET 7,8

SHEET 7

OFF HOOK

C80 22/16

C53 0.1

L19 .4

+8VH

SHEET 3,4

HYBRID RX

@ HYBRID ST5 ST6

LB3 12,1,3

LB4 12,1,3

A

C95 R52 +12V 3 2 100k R88 1k C103 0.1 3 1.58k 4 RG1 Z8 RG2 5 SSM2017 3 11 10k Z47A 6 2 4 R157 4574 1 C11 1/50 C199 0.1 -8V +8V S6 C99 220pF 1 8 2 R74 10k +6dB R3 10k +40dB +50dB R53 R68 100 20 2 3 4 1 7 0.1 100pF R161 7 47/25 C27 C200 47/25 C28 6 .01 C111 100 R43 4 5

+

1 S10 PHANTOM CHAN 1 220pF 47/25 R73 10k J1-11 SHEET 1 C216 . 47/25 R87 1k

8

+

+

+12V C206

-12V C207

+

CHANNEL 1
J1-10 SHEET 1 CHAN 1 + 220pF 47/25 C118 100/10 C209 47/25 C217 .

SHEET 6 MIC SIG 1 SHEET 1 J2-4 LINE IN C224 . 220pF 13 12 Z2D 4574 14 R91 5.11k

C119

+

C104

R7

100pF R10

INPUT SIGNALS SHEET 3,4,6

+

10k

3.16k

+ +
6 5 9 10 Z47C 13 12 Z47D

6 C208 47/25 R44 R92 5.11k SHEET 1 J2-3 LINE IN + C225 . 220pF C201 100k 2 3 4 LINE IN 4574 1 Z2A 11 C2 0.1

5

Z2B

7

C15

LINE SIG

C96 R54 100 R42 100k R85 1k 0.1 3 C100 220pF 1 2 3 4 8 2 R76 10k +6dB R4 10k +40dB +50dB R69 R55 20 100 S7 1 7 4 RG1 Z10 RG2 5 6 SSM2017 R86 1k C105 0.1 +12V C29 C30 -12V .01 C112 47/25 J1-8 SHEET 1 C222 .

4574

1/50

SHEET 6

R8

10k

R9 3.16k -12V 100pF R162 R158 10k 1.58k Z47B 7 4574 C12 MIC SIG 2 1/50 SHEET 6 SHEET 1 J3-4 AUX IN AUX IN C226 . 220pF R93 5.11k 2 3 -12V 8 4580 1 Z3A 4 C35 +12V +12V

C120 100pF

+

+

CHAN 2 220pF 47/25 R75 10k

C121

CHANNEL 2
J1-7 SHEET 1 CHAN 2 + C106 47/25 C223 . 220pF

R11

R14

100pF

10k R45 0.1

3.16k

+

9

+

C117 100/10

10 SHEET 1 J3-3 AUX IN + C227 . 220pF R94 5.11k 100k 6 5 Z3B 7 4580

Z2C

8

C16

AUX SIG

4574

1/50

SHEET 6

R12

C97 R56 100 R41 C113 100k R83 1k R84 1k C107 47/25 J1-5 SHEET 1 CHAN 3 220pF C220 . .01

10k R13 3.16k +12VC31 0.1 3 7 C32 -12V C202 0.1 100pF R163

C122 100pF

+

C149 +8V 10/50 C38

-8V C148 10/50 C37 12 13

+

1

3

V+

8 2 3

Z9 RG2

J1-4 SHEET 1 CHAN 3 + 220pF

C108 47/25 R58

R78 10k C98 .01 C114

+6dB +40dB +50dB R5 R57 R70 10k 100 20

+

MIC SIG 1

5 C116 100/10
DAC

4
MIC SIG 2

2 20
DAC

4

C221 .

+

2

10k 5 SSM2017

8 4574

C13 MIC SIG 3 1/50 SHEET 6

DGND

CHANNEL 3

AGND

VREF

V-

R77 10k

1 1 4

RG1

6

R159

1.58k

2

11

47/25 J1-2 SHEET 1 CHAN 4 C218 . 220pF

+

+
47/25 100 R40 100k

+
2 3 4 5 6 C101 220pF S8 4 0.1 0.1 21
MIC SIG 3

R95

1

C123

100pF

10k SIP

4574

3

Z4A

1

C17

MIC MIX

C36

22/25

0.1 7 +12V C33 C34 -12V C203
DAC

6
MIC SIG 4

-8V 18 19

+8V C124

R17

100pF

+
R81 1k

R82 1k C109 47/25 R79 C102 10k 220pF S9 1 2 3 4

0.1

0.1 7 3 4 1 RG1 6 R160 Z11 8 10k 5 SSM2017 100pF R164 1.58k RG2 14 C14 C219 . C110 MIC SIG 4
LINE SIG

DAC

9
DAC

8
AUX SIG

R15

10k

6 16
DAC

10k 17 DATA 15 MOSI

5

Z4B

7

C18

LINE IN

4574

22/25

CHANNEL 4
J1-1 SHEET 1 CHAN 4 +

+

2 220pF 47/25 R80 10k +6dB +40dB +50dB R6 R59 R71 10k 100 20

4574

1/50

C125 SHEET 6 24
DAC

CLK

14

SCK

+ C115 100/10

C134 3.3/16

23 22

MSTR OUT MSTR SET

LD WRITE

11 10

S/LD1

100pF R18

Z12 SSM2160

R16

10k

+

9

10k MIX CTRL SHEETS 1,3,4,7,8

10

Z4C

8

C19

AUX IN

4574

22/25

ACTION:

MOSI WAS LABELED MISO, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 AUDIO IN
H:\ECM64E\104035-2.SCH 20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

2 of 8

104035

A

+

C151 +8V C150

-8V

+

10/50 C42 12 13 1 3 2 0.1 V+ AGND VREF VDGND INPUT SIGNALS SHEET 2 R96
MIC MIX
DAC

10/50 C41 0.1 C126 100pF R19 15.8K 1 13 12 10k SIP C40
DAC

OUT 1

OUT 1 +12V C214 22/16

SHEET 6

5 20
DAC

4 21 6 19
DAC

AEC TO

2 3 4 5 6

C39 0.1 C20
6

+
C228 .
4 7

Z5D

14 4574

IN

8+

220pF 1/50
3

OUT 1+ Z17
G 5 2 1

J4-10 SHEET 1 SSM2142 C229. 220pF 0.1 C170 22/16 OUT 1 OUT 1J4-11 SHEET 1

LINE IN

7 18 9
DAC

AUX IN

HYBRID RX

8 17
DAC

P. NOISE

16 DATA CLK LD WRITE 11 10
S/LD2

R21 10k

+
15 MOSI 14
SCK

-12V

24
DAC

C135 23 22 MSTR OUT MSTR SET Z13 SSM2160 3.3/16
HYBRID RX LINE IN AUX IN

R28 Z41A 2
LINE IN>AEC REF

1

+

10/50 C44 12 0.1 1 V+ 3

10/50 C43 0.1 VREF V13 2

16

AGND

DGND

+
C153 +8V -8V C152

3 DG212 Z41B 15
AUX IN>AEC REF

10k R147 10k

C165 100pF R1 10k 14 DG212 R154 10k 6 5 Z52B 7 4570 MIX IN AEC REF SHEET 1

+
R97
MIC MIX

C127 R20 100pF 4
DAC

OUT 2

OUT 2 15.8K +12V C45

SHEET 6

5 20
DAC

AEC TO

21 7
DAC

2 3 4 5 6 6 18
DAC

1

2 3 10k SIP 19 9 8

Z5A 11

4574 1 C194 0.1 -12V +12V

0.1 4 C21 1/50
4 3

6 IN G 7 8+

C230 . 220pF Z18
1

OUT 2+ SSM2142 C46
5 2

J4-7 SHEET 1 OUT 2 C231 . 220pF 0.1 -12V OUT 2J4-8 SHEET 1

LINE IN

AUX IN

HYBRID RX

DAC

P. NOISE

16
DAC

17 DATA 24 C136 3.3/16 23 22
DAC

R22 15 MOSI CLK MSTR OUT MSTR SET LD WRITE 14 11 10
SCK S/LD3

10k V+ V13 4 VL Z14 SSM2160 12

+12V-12V C235 0.1 C245 0.1

+

+5V 5 GND Z41E DG212

MIX CTRL SHEETS 1,2,4,7,8

ACTION:

MOSI WAS LABELED MISO, (2) 15.8k WERE 24.9k, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 OUT 1/OUT 2
H:\ECM64E\104035-3.SCH 20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

3 of 8

104035

A

+

C155 +8V

-8V C154

+

10/50 C50 12 0.1 1 3 V+ AGND DGND VREF V2 INPUT SIGNALS SHEET 2 R99
MIC MIX
DAC

10/50 C49 0.1 C129 R23 15.8K 1 6 5 10k SIP Z5B 7 4574 C22 1/50 100pF +12V C47 0.1
4 3

13

OUT 3

OUT 3

SHEET 6

5 20
DAC

4 21 6
DAC

AEC TO

2 3 4 5 6

C232
6 IN G 7 8+

.
220pF Z19
1

OUT 3+ SSM2142 C48 0.1 -12V
5 2

J4-4 SHEET 1 OUT 3 C233 . 220pF OUT 3J4-5 SHEET 1

LINE IN

7 18
DAC

AUX IN

19 8
DAC

HYBRID RX

9 16
DAC

P. NOISE

17 DATA CLK LD WRITE 11 10
S/LD4

R24 10k Z20A
MIC MIX

15 MOSI 14
SCK

24
DAC

2
MIC MIX>AEC

3 DG212 1 R98 Z20B
LINE IN

C137 23 22 MSTR OUT MSTR SET Z15 SSM2160 3.3/16

16

+

12

0.1 1 3 V+ VREF V-

0.1

13

2

9

AGND

DGND

+
C157 +8V 10/50 C52 C51 10/50 -8V C156

15
LINE IN>AEC

14 DG212 Z20C
AUX IN

2 3 4 5 6 10
AUX IN>AEC

1

C254 100pF 10k SIP 11 DG212 C130 R100 4 100pF 2 3 4 5 6 R25 15.8K 13 12 Z4D 14 4574 AEC TI J5-7 SHEET 1

+

MIC MIX

5
DAC

1 20
DAC

9 21 7
DAC

AEC TO

10 6 18
DAC

Z5C 10k SIP 19 9
DAC

8 4574

OUT 4

OUT 4

SHEET 1,6

LINE IN

AUX IN

8 +12V-12V 16 17 C236

P. NOISE

DAC

DATA 24 C138 3.3/16 23 22
DAC

15 CLK MSTR OUT MSTR SET LD WRITE 14 11 10

MOSI SCK S/LD5

V+ VVL GND

13 4 12 5 +5V

0.1 C237 0.1

+

Z16 SSM2160

Z20E DG212

MIX CTRL SHEETS 1-3,7,8

ACTION:

MOSI WAS LABELED MISO, (2) 15.8k WERE 24.9k, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 OUT 3/HYBRID
H:\ECM64E\104035-4.SCH 20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

4 of 8

104035

A

L1 C72 0.1 C256 0.1 1 D32 1N4004 R167 1.33k C204 10/50 C241 1000/25
ADJ

+12V

Q2 LM317 3 I O 2 R165 243

3T

+8V +12V

+
C159 0.1

6 4 1
3T C258 0.1 C257 0.1 D33 1N4004 C242 1000/25 C160 0.1 R168 1.33k

2

J11 3 5 L7

C210 + 47/25

+

D28 1N5817

+

C212 47/25

C263 22/16 C264 22/16

+

C261 0.1

+ C260 0.1
C205 10/50

+
D29 1N5817
1 ADJ 3 I O 2

-12V

+

C211 + 47/25

+
R166 243

C213 47/25

LB5 12,1,3
3T C161 0.1 C259 0.1 -12V

L2

-8V Q3 LM337

C251 .0047 R181 R174 301 +5V L3 3T C167 0.1 C270 0.1 1000/25 D31 1N4004 C253 + 120/25 L4 7 3T Z51 IN GND 4 HT SNK HTSNK FB HTSNK 511 LM2594 ON/OFF OUT 8 L6 100uH C252 0.1 D30 1N5817 6 1 2 3 5 R182 1k +3.3V +12V

Q5 LM317L 3 I O 2
ADJ

+8VH 1

R153 243 C267 0.1 R184 1.33K R185 1.33K + C255 120/25
-12V

C271 0.1

+ C243

C268 0.1
3

ADJ

2

R183 243 Q4 I O LM337L FROM SHT 7
DSP_RST C162 D2

C269 0.1
1

-8VH

+

1/50 R107 SHEET 7 NOISE 10k 14 1 4 5 6 3 0.1 VDD D1 Z22 D2 D3 D4 CLK VSS Q1 Q2 Q2' Q3 Q4 Q4' CD4006 7 13 11 12 10 8 9 C56

1N4148 R113 10k 14 1 4 5 6 D1 1N4148 3

C58 0.1

VDD D1 Z23 D2 D3 D4 CLK

VSS Q1 Q2 Q2' Q3 Q4 Q4' CD4006

7 13 11 12 10 8 9

R131 80.6k R129 30.1k C174 0.1 R114 10k C172 .027 R130 3.01k C175 .01

C163 0.1 R132 2.2M C173 .0056

5 6 Z6B

TL072 7

P. NOISE

P. NOISE

SHEET 3,4

+8V R176 +12V 100 C265 10/50 8 12 11 3 TL072 1 C158 0.1

+

C262 0.1

C57 0.1 14

13

Z24D

CD4070

2

Z6A 4

-8V 1 2 7 Z24A 3 6 CD4070 R111 10k 5 Z24B 4 9 CD4070 C171 120pF R112 10k 8 Z24C 10 CD4070

ACTION:

ADDED 3.3V CIRCUITRY, ADDED DECOUPLING, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 POWER/PINK NOISE
H:\ECM64E\104035-5.SCH 20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

5 of 8

104035

A

R133 D3 47.5k D17 D4 R60
ADC0

ADCS IN SHEET 8 R140 44.2k
OUT 4

1N4148 SHEET 2 0.1 3 11 C59 0.1 +8VH R134 47.5k 1N4148 C140 + 3.3/16 100 8.06k Z7A SHEET 4 MIC MIX
MIC MIX

C176 R117 2 4 4574 1

C185 0.1

R126 12.4k

OUT 4

13 12

1N4148 14 Z40D 4574 D18 1N4148 R67 100 C147 + 3.3/16
ADC7

-8VH D5 SHEET 2 0.1 5 4574 1N4148 100 C141 + 3.3/16 8.06k Z7B 7
ADC1

LINE IN R61

LINE IN

C177 R118 6 D6 1N4148

+8V SHEET 1 SHEET 2 SHEET 2 HYBRID RX LINE SIG AUX SIG
HYBRID RX LINE SIG AUX SIG

R143 R142 20k 20k R141 20k C132 R101
MIC SIG 1

R124 28.7k 1.16V

R135 D7 SHEET 2 0.1 10 4574 1N4148 C142 + 3.3/16 100 8.06k Z7C 8 R62 AUX IN
AUX IN

47.5k

D21 7 1 6 Z25B RED LM339 2 3 4 5 6 470PF SHEET 2 SHEET 2 SHEET 2 SHEET 2 MIC SIG 1 MIC SIG 2 MIC SIG 3 MIC SIG 4
MIC SIG 2 MIC SIG 3 MIC SIG 4

R89

1k R150 4.75k 1 2 3 10k SIP 0.1 -12V +12V 4580 Z26A 4 C60 1 .024V 8 C180 0.1 R47 100k R144 100

C178 R119 9 D8
ADC2

1N4148

R136 D9 SHEET 1 HYBRID RX 0.1 12 4574 1N4148 8.06k Z7D 14 D10
HYBRID RX

+8V D19 5 2 4 Z25A LM339 GRN R145 -8V 3 12

R148

511

47.5k

75 C164 1/50 R63 100 C143 + 3.3/16 +8V R102
ADC3

C179 R120 13 1N4148

R125 6.81k SHEET 3 OUT 1
OUT 1

3.9V 2 3 4 5 6

R137 D11 1N4148 SHEET 3 0.1 12.4k OUT 1
OUT 1

D22 11 13 10 Z25D LM339 RED 44.2k SHEET 3 OUT 2
OUT 2

1 4574 1 SHEET 3 OUT 3
OUT 3

C133 470PF D12 R64 6

R151 6.34k .06V 9 C184 Z25C

C181 R121 2 3

4

Z40A 11

ADC4

SHEET 4 C61 0.1 -8VH +8VH R138 D13 44.2k 1N4148 100 C144 3.3/16

OUT 4

OUT 4

10k SIP

+

5

Z26B

7 4580

8 0.1 R48 100k R146 100

SHEET 3

OUT 2

OUT 2

C182 0.1

R122 12.4k

6 5

1N4148 7 Z40B 4574 D14 1N4148 R65 100 C145 3.3/16 R139 D15 44.2k C183 R123 1N4148
ADC5

+

SHEET 4

OUT 3

OUT 3

9 0.1 12.4k 10

8 Z40C 4574

D16 1N4148

R66 100 C146 + 3.3/16

ADC6

ACTION:

(4) 8.06k WERE 3.57k, (4) 44.2k WERE 47.5k, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

H:\ECM64E\104035-6.SCH

20-Oct-2000

MS

CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

+

R90

1k

D20

14

R149

LM339 GRN

511

ECM 64 AVG AMPS
SHEET:

6 of 8

104035

B

OH_LED RING_LED PRIV_LED MUTE_LED LATCHES SHEET 8 C64 +5V 16 VCC OFF HOOK RING PRIVACY MUTE AA COM POWER /NOISE 1 2 3 4 5 6 7 8 9 GND
LDATA

3. Y 4 6 8 10 5. Y 7. Y 9. Y

R156 10k SIP OFF HOOK J7-11 J7-7 SHEET 1 J10-20
>/OFF HOOK >/RING S/LD6 /MRP

SCK

AA_LED

11 12 13 10 J7-12
>/PRIVACY

. LED BAR

SRCLK RCLK S/L OE +5V C62 J7-13
>/MUTE

Z27 0.1 74HC259 8 Z29 1I 2I 3I 4I 5I 6I 7I 8I GND D S0 S1 S2 G CLR C65 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 4 5 6 7 9 10 11 12

16 8 ULN2803 1O 2O 3O 4O 5O 6O 7O 8O DI 18 17 16 15 14 13 12 11 10 Y COM_LED COM D24 Y PWR_LED PWR NOISE +12V SHEET 5
SCK S/LD6 /FP BTNS

VCC GND 0.1 D23 SHEET 8
MISO

A B C D E F G H 9 QH

15 1 2 3 4 5 6 7

MEM1 MEM2 MEM3 MEM4 ADD1 ADD2 ADD3 ADD4

13 1 2 3 14 15

SER

14

S0 S1 S2 /LATCH1 /RST

SHEET 8 Z31 11 12 13 10 +5V C63 16 8 0.1
MISO

R103 10k SIP

+5V 16 VCC
/6420 /MRP /FP BTNS /CTRL BTNS /EEP1 /FB_0 /FB_1 /6420_RST

Z28 0.1 74HC259 8 GND D S0 S1 S2 G CLR C10 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 4 5 6 7 9 10 11 12

SRCLK RCLK S/L OE VCC GND 9 R152 10k SIP +5V QH

LDATA S0 S1 S2 /LATCH2 /RST

13 1 2 3 14 15

A B C D E F G H

15 1 2 3 4 5 6 7

VOL UP BTN VOL DWN BTN OFF HOOK BTN /DSPRX_RDY /DSPTX_RDY PORT STEP BTN

+5V

SER

14

R104 +5V 10k Z42 16 VCC D S0 S1 S2 G CLR C166 +5V 16
LDATA S0 S1 S2 /LATCH4 /RST MEM1

Z32
SCK

74HC589 R31
PRIVACY CTRL S/LD6 /CTRL BTNS

+5V 0.1 74HC259 8 GND
OUT1>AEC REF INT>AEC REF LINE IN>AEC REF AUX IN>AEC REF MIC MIX>AEC LINE IN>AEC AUX IN>AEC

100k R33
MEM2 MUTE CTRL MEM3 >/OFF HOOK MEM4 >/PRIVACY

MRP & EXTERNAL CONTROL
R32 100k 100k R35 R34 100k 100k R36 100k 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 J7

11 12 13 10 +5V C66 0.1
MISO

SRCLK RCLK S/L OE 16 8 9 VCC GND QH

LDATA S0 S1 S2 /LATCH3 /RST

13 1 2 3 14 15 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7

4 5 6 7 9 10 11 12

A B C D E F G H

15 1 2 3 4 5 6 7

VOL UP CTRL VOL DWN CTRL OFF HOOK CTRL PRIVACY CTRL MUTE CTRL /RI /AEC_RDY

+5V

SER

14

+5V

+5V

S11 GND

/P_LINE

Z50 0.1 74HC259 8 VCC D Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 4 5 6 7 9 10 11 12

TO SHT 5 DSP_RST
/DSP_IRQB

OFF HOOK CTRL >/MUTE

R37 +5V 100k

ADD4 ADD3 ADD2

8

1

7
ADD1

2

13 1 2 3 14 15

6 S0 S1 S2 G CLR
VOL UP CTRL RS0 /DTMFTX >/RING VOL DWN CTRL

3 R39 100k R38 100k S2 1 2
VOL UP BTN

RW 232 ADDRESS

5 MDB15 FEM

4

C54 C128 C139 C168 0.1 0.1 0.1 0.1

DIP 4P

VOL UP S3 1 2

VOL DWN BTN OFF HOOK BTN

C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01

SPI CTRL SHEETS 1,8

MIX CTRL SHEETS 1-4,8 VOL DWN S4 1 2
PORT STEP BTN

HYBRID CTRL SHEETS 1,8

OFF HOOK 2 S5A 1 PORT STEP
ACTION:

MOSI WAS LABELED MISO, SOME NET NAME CHANGES, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 DIGITAL I/O
H:\ECM64E\104035-7.SCH 20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

7 of 8

104035

2 3 4 5 6

74HC589

R127

10k

R155

10k

R170

10k R108

10k

1

74HC589

2 3 4 5 6

Z30

1

D25 1 Y 2

+5V

+5V

A

+5V C69 0.1 C68 ADCS IN SHEET 6 0.1 +5V RING_LED RN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 AA_LED COM_LED PWR_LED D26 1 G 2 4 6 8 -9dB -6dB
MOSI SCK S/LD1 S/LD2 S/LD3 S/LD4 S/LD5 S/LD6

RAM = $0000>$7C00 DTMF = $7C00

LATCHES SHEET 7

OH_LED

68 37
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 A08 P2.0 A09 P2.1 A10 P2.2 A11 P2.3 A12 P2.4 A13 P2.5 A14 P2.6 A15 P2.7 1 2 3 5 6 7 8 9 10 51 21 22 23 24 25 26 27 28 34064 RST GND 1 C192 + 3.3/16 3
/IRQ MISO /DSP_SS /RST /WR /RD ADC0 ADC1 ADC2 ADC3 ADC4 ADC5 ADC6 ADC7

38
36 35 34 33 32 31 30 29 41 42 43 44 45 46 47 48
/LATCH1 /LATCH2 /LATCH3 /LATCH4 S0 S1 S2 LDATA A8 A9 A10 A11 A12 A13 A14 A15

HYBRID CTRL SHEETS 1,7

PRIV_LED MUTE_LED SHEET 7 Z33 80C535-N

20 19 18 17 16 15 14 13 VCC P6.0 P6.1 P6.2 P6.3 P6.4 P6.5 P6.6 P6.7 P5.0 P5.1 P5.2 P5.3 P5.4 P5.5 P5.6 P5.7 P4.0 /ADST P4.1 P4.2 P4.3 P4.4 P4.5 P4.6 P4.7 RESET EA P3.0 RXD P3.1 TXD P3.2 /INT0 P3.3 /INT1 P3.4 T0 P3.5 T1 P3.6 /WR P3.7 /RD VCC VSS 67 66 65 64 63 62 61 60

16

+5V C197
Z39 /RD /WR /PSEN A10 A11 A12 A13 A14 A15

0.1 1 2 3 4 5 6 7 8 9 11 I1 I2 I3 I4 I5 I6 I7 I8 I9 I10 VCC O1 IO2 IO3 IO4 IO5 IO6 IO7 O8 GND 20 19 18 17 16 15 14 13 12 10
/F_EN /F_RD /F_WR /RAM /EP /EP_RD /DTMF

-18dB -15dB -12dB

3.G 5. G 7. G 9.G 10

470 DIP

. LED BAR
D27 1 Y 2 -3dB 0dB +6dB 4 6 3. Y 5. R

XTAL1

39 Y1 11.0592 MHZ 40 4 11 12 XTAL2 VPD VREF VGND ALE PSEN A00 P0.0 A01 P0.1 A02 P0.2 A03 P0.3 A04 P0.4 A05 P0.5 A06 P0.6 A07 P0.7 50 ALE 49 /PSEN 52 53 54 55 56 57 58 59
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7

C186 22pF C187 22pF C67 0.1

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 GAL16V8-10ns

10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 +5V C73 0.1
/EP_RD 22 /EP 20

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 OE CE VPP +5V 1

Z36

D0 D1 D2 D3 D4 D5 D6 D7

11 12 13 15 16 17 18 19

AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7

AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7

13 14 15 17 18 19 20 21 +5V VCC GND 28 14 C74 0.1

D0 D1 D2 D3 D4 D5 D6 D7

Z43

+5V

32

VCC

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18

12 A0 11 A1 10 A2 A3 9 A4 8 A5 7 A6 6 A7 5 27 A8 26 A9 23 A10 25 A11 A12 4 28 A13 29 A14 3 2 /FB_0 30 /FB_1 1

L8 +5V + 3T C272 3.3/16

Z37 1
ALE 11 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7

27C256-70 OC C 2 3 4 5 6 7 8 9 1D 2D 3D 4D 5D 6D 7D 8D 74ACT573 VCC GND 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 20 10 Z46 19 18 17 16 15 14 13 12
A0 A1 A2 A3 A4 A5 A6 A7 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 /WR /RD /RAM

C195 0.1 16 10 9 8 7 6 5 4 3 25 24 21 23 2 26 1 27 22 20 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 WE OE CE D0 D1 D2 D3 D4 D5 D6 D7 11 12 13 15 16 17 18 19
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7

GND

OE WE CE

24 /F_RD 31 /F_WR 22 /F_EN

M29F040B

.LED BAR

+5V C71 0.1 16 +5V C191 10/50 + C189 10/50 12 13 Z34D 11 74HC08 2 IN Z48

V+

VCC

C188 + 10/50 3 CT2IN R2OUT R1OUT T1IN RS-232 C70 0.1 10 9 12 11 C27 T2OUT RXD1 8 R2IN 13 R1IN 14 T1OUT GND 15 5

14

7

H:\ECM64E\104035-8.SCH

+
2 V6

C190 10/50 Z35

+5V VCC 28

+

1 C+ C2+

4

C75 0.1 GND KM62256 14

MIX CTRL SHEETS 1-4,7
SCK

SPI CTRL SHEETS 1,7
RXD0

+5V 1 2

C6 220pF .

Z34A 3 74HC08

C7 220pF

.

4 5 Z34B 6 74HC08 C8 220pF .
TXD0 TXD1

1 6 2 7 3 8 4 9 5

J5
/EEP1

+5V Z44 1 10 0
MISO

25C160/P CS VCC 8 2 7

C196 0.1

RW-232 OUT

SO +5V 3 4
MOSI

HOLD WP VSS DB9 MALE 1 6 2 7 3 8 4 9 5 C94 J6 SCK SI

6 5

. 220pF

0 10

RW-232 IN

DB9 FEM
ACTION:

SWAP MOSI & MISO LABELS, ADDED NET /DSP_SS, DOC WAS 103344, SKH 20MAR00
DRAWN BY:

ECM 64 PROCESSOR
20-Oct-2000 MS
CHECKED BY:

EMS

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

8 of 8

104035

A