Sony STR-K900 - Fm Stereo/fm-am Receiver Service Manual page 46

STR-K880/K900
• IC Pin Function Description
DIGITAL BOARD IC1101 MB90488BPF-G-175E1 (SYSTEM CONTROL)
Pin No. Pin Name
1 DATAO
2 GP9
3 BST
4 HCS
5 HACN
6 XRST
7 PM
8 GP12
9 FL_LAT
10 PCM1608_RST
11 VSS
12 PCM1608_ML
13 PCM1608_MC
14 PCM1608_MDI
15 PCM1608_MDO
16 T.SERIAL_CLK
17 TUNER_DATA
18 HDOUT
19 HDIN
20 HCLK
21 TUNING_A
22 TUNING_B
23 VCC5
24 FL_RESET
25 FL_CLK
26 XM_RST
27 FLASH2
28 FLASH1
29 SDA
30 SCL
31 ENC_A
32 ENC_B
33 UPCON
34 UPCON_CLK
35 AVCC
36 AVRH
37 AVSS
38 ADCC
39 A/D1
40 A/D2
41 VERSION
42 VSS
43 RDS_SIG
44 MODEL
45 TONE_EN_B
46 TONE_EN_A
47 XMDACMS
46
I/O
I Audio data signal input from DIR
I GP9 signal input from DSP
O BST signal output to DSP
O HCS signal output to DSP
I HACN signal input from DSP
O Reset signal output to DSP
O PM signal output to DSP
O GP12 signal output to DSP
O FL driver latch signal output
O IC reset signal output to DAC
— Ground terminal
O Latch signal output to DAC
O Clock signal output to DAC
O IC data output to DAC
I IC data input from DAC
O Tuner clock signal output terminal
O Tuner data signal output terminal
I HDOUT signal input from DSP
O HDIN signal output to DSP
O Clock signal output to DSP
— Tuning data output (not used)
— Tuning data output (not used)
— Power supply (+3.3V)
O FL driver reset signal output
O Not used
— FL driver clock signal output terminal (not used)
O FLASH2 signal output (not used)
O FLASH1 signal output (not used)
I EEPROM data signal input terminal
O EEPROM clock signal output terminal
I Input Encoder (A) signal input
I Input Encoder (B) signal input
— Not used
— Not used
— Analog power supply (+3.3V)
I Analog reference voltage input (+3.3V)
— Analog ground terminal
I ADCC signal input
I Function key push signal input
I Function key push signal input
I Version setting input terminal (DESTINATION)
— Ground terminal
I RDS signal detect input (connected to ground terminal) (not used)
I MODEL select input
I Tone control input from rotary encoder.
I Tone control input from rotary encoder.
O Not used
Description