Read Sony ICD-P27 Service Manual online
ICD-P27
20
20
5-8. IC BLOCK DIAGRAMS
IC8101 M66291GP-2 (MAIN Board)
IC110 LM4903MMX/J5000273
(MAIN Board)
IC502 XC9105D091MR (MAIN Board)
IC703 RX-4591CF (MAIN Board)
1
2
3
4
8
7
6
5
BIAS
VDD/2
AV=-1
VO2
GND
VDD
VO1
XSHUTDOWN
BYPASS
+IN
-IN
CVDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
4
3
5
6
14
13
8-10
11
GND
D-
D+
VBUS
TRON
TEST
DACK1
DREQ1
TC1
INT1
IVDD
XOUT
XIN
CVDD
GND
A1
A2
A3
A4
A5
A6
D0
D1
D2
D3
D4
D5
D6
D7
D11
D10
D9
D8
IVDD
GND
D12
D13
D14
D15/A0
HWR/BYTE
INT0
RD
LWR
CS
RST
DREQ0
DACK0
I/O BLOCK
USB-IP
OSCILLATION
BUFFER
/48MHzPLL
VBUS
INPUT CIRCUIT
D+ PIN PULLUP
CIRCUIT
USB
TRANSCEIVER
TRANSFER
CONTROLLER
SERIAL
INTERFACE
ENGINE
(SIE)
INTERRUPT CONTROLLER
ENDPOINT
CONTROLLER
FIFO MEMORY CONTROLLER
FIFO MEMORY
BUS
INTERFACE
UNIT
(BIU)
1
2
3
4
VDD
FOE
XIRQ
T1
5
10
9
8
7
6
FOUT
CE
CLK
DO
DI
CE
CLK
DO
DI
CE
CLK
DO
DI
GND
FOUT
CONTROLLER
DIVIDER
OSC
32.768kHz
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
CONTROL
REGISTER
AND
SYSTEM
CONTROLLER
TIMER
REGISTER
CLOCK
AND
CALENDAR
ARARM
REGISTER
3
4
2
1
VREF WITH
SOFT START,
CHIP ENABLE
CURRENT
RIPPLE DETECTION
AND FB
PHASE
COMPENSATION
BUFFER,
DRIVER
RAMP WAVE
GENERATOR,
OSC
5
GND
EXT
VDD
CE
VDD
VOUT
VDD
PWM/PFM
CONTROLLER
PWM
COMPARATOR
ERROR
AMP
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