FSA4480
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3
Table 1. PIN DESCRIPTIONS
No.
Pin Name Description
1 A5 VCC Power Supply (2.7 to 5.5 V)
2 B5 GND Chip ground
3 D5 DP_R USB/Audio Common Connector
4 D4 DN_L USB/Audio Common Connector
5 E5 DP USB Data (Differential +)
6 E4 DN USB Data (Differential –)
7 C5 R Audio – Right Channel
8 C4 L Audio – Left Channel
9 A3 SBU1 Sideband use wire 1
10 A2 SBU2 Sideband use wire 2
11 C1 MIC Microphone signal
12 B2 AGND Audio signal ground
13 B3 AGND Audio signal ground
14 E2 SENSE Audio ground reference output
15 C3 INT I
2
C Interrupt output, active low (open drain)
16 D2 CC_IN Audio accessory attachment detection input
17 D1 GSBU1 Audio sense path 1 to headset jack GND
18 E1 GSBU2 Audio sense path 2 to headset jack GND
19 C2 DET Push−pull output. When CC_IN > 1.5 V, DET is low and CC_IN < 1.2 V, DET is high
20 D3 SCL I
2
C clock
21 E3 SDA I
2
C data
22 B1 SBU2_H Host Side Sideband Use Wire 2
23 A1 SBU1_H Host Side Sideband Use Wire 1
24 A4 ENN
Chip Enable, active low, internal pull−down by 470 kW
25 B4 ADDR I
2
C slave address pin
