Ic Block Diagrams - Sony SRP-X700P Service Manual

SRP-X700P

4-37. IC BLOCK DIAGRAMS

– DSP Board –
IC125 FT8U232AM
VCC
3.3 Volt
3V3OUT
LDO
Regulator
USBDP
Serial Interface
USB
Engine
Transceiver
( SIE )
USBDM
USB DPLL
XTOUT 48MHz
6MHZ x8 Clock
Oscillator Multiplier
XTIN 12MHz
RCCLK
48MHz
Baud Rate
Generator
Dual Port TX
Buffer
128 bytes
USB UART UART
Protocol Engine FIFO Controller
Dual Port RX
Buffer
384 Bytes
EEPROM
Interface
GND
RESET#
TEST
— 89 —
– PA Board –
IC003 TA3020
OAOUT1 26
V5
INV1 25
-
+
TXD
AGND
RXD
RTS#
Processing
CTS#
DTR# Modulation
DSR#
DCD#
RI#
2.5V
200K
19
BIASCAP
TXDEN
USBEN
TXLED#
V5
RXLED#
24
MUTE
EECS
32
REF
EESK
EEDATA
OAOUT2 21
V5
INV2 20
SLEEP# -
+
PWRCTL AGND
Modulation
BBM0 22
23
BBM1
DCOMP 17
27
V5
AGND 28
V5 35
AGND 34
VNNSENSE 30
VPPSENSE 29
NC 11
43 OCS1HP
44 OCS1HN
40 VBOOT1
45
HO1
46 HO1COM
VN10
48
LO1
&
47
LO1COM
42 OCS1LP
41
OCS1LN
37 OCR1
33
OCR1
13 FBKOUT1
14
FBKGND1
15 HMUTE
7
OCS2HP
8 OCS2HN
10
VBOOT2
5 HO2
4
HO2COM
VN10
Processing
2 LO2
&
3 LO2COM
7
OCS2LP
8 OCS2LN
12 OCR2
31
OCR2
16
FBKOUT2
18
FBKGND2
1
VN1 0
39
VNN
38
NC
36
NC
— 90 —