Aiwa CX-BK7 Service Manual page 110

CX-BK7
• USB AUX BOARD IC700 uAC3553B (USB INTERFACE)
Pin No. Pin Name
1
XTI
2 XTO
3 AREG1
4 AVSS_12
5 OUTL
6 OUTR
7 AREG0
8 AVDD
9 DAI
10 WSI
11 CLI
12 INT_DATA
13 ACK
14 to 19 NC
20 SDA
21 SCL
22 TRDY
23 VREG
24 VBUS
25 D–
26 D+
27 VSS
28 VDD
29
TEST
30 REST
31 SUSPEND
32 SOF
33 SEN
34 FOUTL
35 FOPL
36 FINL
37 FOUTR
38 FOPR
39 FINR
40, 41 NC
42 SGND
43 SREF
44 NC
110
I/O
I
System clock input terminal (12 MHz)
O System clock output terminal (12 MHz)
I
Connected to the external capacitor
— Ground terminal
O
USB audio signal output terminal (L-ch)
O USB audio signal output terminal (R-ch)
I
Connected to the external capacitor
—
Power supply terminal (+5V)
I Not used
I Not used
I Not used
O Interrupt request signal output to the system controller
O Acknowledge signal output to the system controller
— Not used
I/O Two-way I2C data bus with the system controller
I/O Two-way I2C clock bus with the system controller
I Not used
I
Connected to the external capacitor
I
USB connect detection signal input terminal
I
USB data (–) input terminal
I
USB data (+) input terminal
— Ground terminal
—
Power supply terminal (+5V)
I
Input terminal for the test
I Not used
I Not used
I Not used
I Not used
O USB audio signal output terminal (L-ch)
I Not used
O
USB audio signal input terminal (L-ch)
O
USB audio signal output terminal (R-ch)
I Not used
O
USB audio signal input terminal (R-ch)
— Not used
— Ground terminal
I Not used
I Not used
Description