Sony TAM-100 Service Manual page 15

QQ
3 7 63 1515 0
• IC Block Diagrams
Former type: Serial number 4,000,000 and before
U1 TC88512AF-043
100 95
1
.
2
WE/PF0 3
CAS1/PF2 4
5
PC (3:0)
8
RAS/PF3 9
TE
L 13942296513
10
OE/PF1
MCE
11
12
A 16
A15-12/PI(3:0) 13
DVSS1-4 14
XIN 15
XOUT 16
DVDD1-4 17
PVSS 18
19
PLLI
PLLO 20
PVDD 21
U2 TC58A04F
28 27 – 15
4M BIT
MEMORY
CELL ARRAY
DATA LATCH
www
INTERFACE/
CONTROL LOGIC
.
1 2 3 4 5
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89 87
94 93 92 91 90 86 85 84
1
CLOCK COUNTER
MEMORY
INTERFACE
CPU RAM
CPU PROGRAM
ROM
CLOCK
GENERATOR
+
PLL
ADDRESS DECODER
22 24 25 28 29
U80 NJM2113M-TE2
NC
CHIP–DIS
CHARGE PUMP/
CONTROL GATE
DRIVE
V REF
x ao
+VIN
y
i
8 – 14
6 7
–VIN
NC
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8
83 82 81 80 79 78 77 76
1 1
VRFF
D-A
GENERATOR
CONVERTER
DPS
• VOICE COMPRESSION/DECOMPRESSION
• DTMF DETECTION
• FULL DUPLEX HANDS FREE AND SO ON
DSP
INTERFACE
Q Q
3 6 7 1 3
HOST
SERIAL
INTERFACE
MEMORY
SERIAL
INTERFACE
32 33 36 37, 38 39 40 41 42
1 BIAS
50k
125k
2
#B
50k
4k
u163
3
4k
.
#A
4
– 21 –
2 9 9 4 2 8
75 74
A-D
CONVERTER
73 AVDD1, 2
72 AVSS1, 2
71 WAIT
70 WR/PH0
69 RD/PH1
68 NM1
67 INT
8 BIT
66 DVDD1-4
CPU
65 DVSS1-4
64
.
PE (1:0)
63
62 MREQ/PH2
61 IORQ/PH3
60
1 5 0 5 8 2 9 9 4
PD (3:0)
57
56
PB (7:0)
49
I/O
CONTROL 48
PA (3:0)
45
44
.
PA (7:4)
43
8 V02
7 GND
m
co
6 V+
5 V01
9 9
2 8 9 9