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Sony TAM-100 Service Manual page 3

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• IC Block Diagrams
U1 TC88512AF-043
94
93
92
100 95
1
.
2
WE/PF0
3
4
CAS1/PF2
5
PC (3:0)
8
RAS/PF3
9
OE/PF1
10
MCE
11
A 16
12
A15-12/PI(3:0)
13
DVSS1-4
14
XIN
15
XOUT
16
CLOCK
DVDD1-4
17
GENERATOR
+
18
PVSS
PLL
PLLI
19
PLLO
20
PVDD
21
U2 TC58A04F
NC
28
27 – 15
4M BIT
CHARGE PUMP/
MEMORY
CONTROL GATE
CELL ARRAY
DRIVE
DATA LATCH
INTERFACE/
CONTROL LOGIC
8 – 14
1 2 3 4 5
6 7
91
90
89
87
86
85
84
83
82
1
1
D-A
CONVERTER
• VOICE COMPRESSION/DECOMPRESSION
• DTMF DETECTION
CLOCK COUNTER
• FULL DUPLEX HANDS FREE AND SO ON
MEMORY
INTERFACE
CPU RAM
CPU PROGRAM
ROM
ADDRESS DECODER
22
24
25
28
29
32
33
36
U80 NJM2113M-TE2
CHIP–DIS
1
50k
V REF
2
50k
+VIN
3
4
–VIN
NC
81
80
79
78
77
76
75
74
1
VRFF
A-D
GENERATOR
CONVERTER
DPS
8 BIT
DSP
CPU
INTERFACE
HOST
SERIAL
I/O
INTERFACE
CONTROL
MEMORY
SERIAL
INTERFACE
37, 38 39 40 41 42
BIAS
125k
#B
4k
4k
#A
– 6 –
73
AVDD1, 2
72
AVSS1, 2
71
WAIT
70
WR/PH0
69
RD/PH1
68
NM1
67
INT
66
DVDD1-4
65
DVSS1-4
64
.
PE (1:0)
63
62
MREQ/PH2
61
IORQ/PH3
60
PD (3:0)
57
56
PB (7:0)
49
48
PA (3:0)
45
44
.
PA (7:4)
43
8
V02
7
GND
6
V+
5
V01

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