1. Function of each pin of N3 (TAS5112) is shown as follows:
Pin Name Data direction Function Remark
1 GND Common
2 GND Common
3 GREG Door drive voltage regolator decoupling pin
4 OTW O Chip over heat alarm output
5 SD-CD O Off label position of surround left/right channel Refer to table 3
6 SD-AB O Off label position of subwoofer power amplifier Refer to table 3
7 PWM-DP I Surround left channel PWM positive signal input
8 PWM-DM I Surround left channel PWM negative signal input
9 RESET-CD I Surround left/right channel power amplifier reset signal Refer to table 3
10 PWM-CM I Surround right channel PWM negative signal input
11 PWM-CP I Surround right channel PWM positive signal input
12 DREG-RIN Digital power supply regulator decoupling loop pin
13 M3 I Output mode selection bit Refer to table 2
14 M2 I Protection mode selection bit Refer to table 1
15 M1 I Protection mode selection bit Refer to table 1
16 DREG Digital power supply regulator decoupling loop pin
17 PWM-BP I Subwoofer PWM positive signal input
18 PWM-BM I Subwoofer PWM negative signal input
19 RESET-AB I Subwoofer power amplifier reset signal Refer to table 3
20 PWM-AM I Subwoofer PWM positive signal input
21 PWM-AP I Subwoofer PWM negative signal input
22 GND Common
23 DGND Digital input/output reference ground
24 GND Common
25 DVDD Input/output power supply voltage 3.3V
26 GREG Door drive voltage regulator decoupling pin
27 GND Common
28 GND Common
29 GND Common
30 GVDD Door drive and digital regulator power supply end
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