Sony PHA-1A - IC Pin Function Description; Main Board IC401 (USB Controller) Pinout

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