Sony PHA-1A Service Manual page 18

PHA-1A/1AEU
• IC Pin Function Description
MAIN BOARD IC401 LC87F17C8AUWA-2H (USB CONTROLLER)
Pin No. Pin Name
1 SERIAL-SW
2 /RES
3 XT1
4 NC
5 VSS1
6 CF1
7 CF2
8 VDD1
9 to 11 OPT_1 to OPT_3
12 CP_SCL
13 CP_SDA
14 —
15 VBUS_SW
16 AUX_SW
17 MCLK_IN
18 MCLK_OUT
19 VDD2
20 VSS2
21 CP_RST
22 NC
23 SDAT_IN_AUX
24 BCLK_IN_AUX
25 LRCK_IN_AUX
26 SDAT_OUT
27 BCLK_OUT
28 LRCK_OUT
29 to 33 OPT_4 to OPT_8
34 SDAT_IN
35 BCLK_IN
36 LRCK_IN
37 UHD–
38 UHD+
39 VDD3
40 VSS3
41 UFILT
42 AFILT
43 MUTE 1
44 MUTE 2
45 LED1
46 BATT_CK
47 NC
48 VBUS-OFF
18
I/O
I Serial No. write mode switch input terminal
I Reset signal input terminal
I System clock input terminal
O Not used
- Ground terminal
I System clock input terminal (12 MHz)
O System clock output terminal (12 MHz)
- Power supply terminal (+3.3V)
I Hardware option input terminal
O Serial data transfer clock signal output to the MFI
I/O Two-way serial data bus with the MFI
I Not used
I VBUS current selection signal input terminal
I AUX selection signal input terminal
I Digital audio master clock signal input from the USB audio processor
O Digital audio master clock signal output to the D/A converter
- Power supply terminal (+3.3V)
- Ground terminal
O Reset signal output to the MFI
O Not used
I Digital audio data input from the USB audio processor
I Digital audio bit clock signal input from the USB audio processor
I Digital audio L/R sampling clock signal input from the USB audio processor
O Digital audio data output to the D/A converter
O Digital audio bit clock signal output to the D/A converter
O Digital audio L/R sampling clock signal output to the D/A converter
I Hardware option input terminal
I Digital audio data input terminal
I Digital audio bit clock signal input terminal
I Digital audio L/R sampling clock signal input terminal
I/O Two-way USB data (–) bus with the INPUT (for iPhone/iPad/iPod) connector
I/O Two-way USB data (+) bus with the INPUT (for iPhone/iPad/iPod) connector
- Power supply terminal (+3.3V)
- Ground terminal
- USB interface PLL fi lter terminal
- Audio PLL fi lter terminal
O Audio (L-ch) muting on/off control signal output terminal
O Audio (R-ch) muting on/off control signal output terminal
O LED drive signal output terminal for the POWER/CHG indicator (green color)
I Battery level check terminal
O Not used
VBUS on/off control signal output terminal for the INPUT (for iPhone/iPad/iPod) connector
O
"L": VBUS on
Description
"H": serial No. write mode
"L": reset
Not used
Not used
Fixed at "L" in this unit
"L": reset
Not used
Not used
Not used
Not used
"L": muting on
"L": muting on
"H": LED on