Read Sony ICD-B25 Service Manual online
ICD-B25
20
20
IC102 AN6123MS-TXL
• IC Block Diagrams
GM
5
OUT
3
IN
4
GND
2
DET
1
VCC
DET
5
6 7
8
4
3
2
1
9 10 11 12
19
20
21
22
23
24
18
17 16 15
14 13
VCOM
VREF1
VREF2
VIN
AGND
M/S
TSC
BCK
FS
DIN
DOUT
FSO
SCKIO
XTO
XTI
HPFD
LOOP
PDWN
AGND
VOUT
AGND
VCC
DGND
VDD
POWER
SUPPLY
SERIAL
I/O I/F
HPF
DIGITAL FILTER
OVER SAMPLING
DIGITAL FILTER
MODE
CONT
LOOP
BACK
BACK
REF V
ANALOG
FRONT END
LPF
OUTPUT AMP
∆-∑ MOD
ADC
∆-∑ MOD
DAC
CLOCK
4
5
6
2
1
3
CE
GND
Q0
CLK IN
VDD
Q1
11BIT
PLL
1/2
1/4
1 2
3
5 6 7 8 9
10
16 15 14 13 12 11
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
VDD
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
4
Q0
CLOCK
DATA
VSS
1
5
2
4
3
NC
VCC
IN A
GND
OUT Y
VDD
VDD
OSCIN
OSCOUT
CE
INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
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