Sony HCD-C770 Service Manual page 79

IC602 PCM1800E/2K
24 23 22 21 20 19
SINGLE-END
DEFERENTIAL REFERENCE
CONVERTER
1 2 3 4
IC604 IDT71V016S15PH-AUTL
A4 1
A3 2
A2 3
A1 4
A0 5
CHIP ENABLE
CS 6
BUFFER
I/O 0 7
I/O 1 8
I/O 2 9
I/O 3 10
VDD 11
VSS 12
I/O 4 13
I/O 5 14
I/O 6 15
I/O 7 16
BUFFER
WRITE ENABLE
WE 17
BUFFER
A15 18
A14 19
A13 20
A12 21
NC 22
18 17
DIGITAL ∑
MODULATOR 1/64
DECIMATION
FILTER
&
LOW-CUT
DIGITAL ∑ FILTER
MODULATOR
SINGLE-END CLOCK/
DEFERENTIAL TIMING CONTROL RESET/
CONVERTER POWER CONTROL
5 6
ROW/COLUMN
DECODER
64K x 16
MEMORY
ARRAY
LOW SENSE AMP HIGH
BYTE & BYTE
I/O WRITE
PRIVER BUFFER
16 15 14 13
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
7 8 9 10 11 12
44
43
42
OUTPUT ENABLE
41
BUFFER
BYTE ENABLE 40
BUFFER
39
38
37
36
35
34
33
32
31
30
29
28
I/O
27
26
25
24
23
HCD-C770/C990
A5
A6
A7
OE
BHE
BLE
I/O 15
I/O 14
I/O 13
I/O 12
VSS
VDD
I/O 11
I/O 10
I/O 9
I/O 8
NC
A8
A9
A10
A11
NC
79