Pin Name Data direction Function Remark
53 PVDD-D Surround left channel power supply
54 BST-D
HS bootstrap supply (BST)
55 GVDD Door drive and digital regulator power supply end
56 GND Common
Pin Name Data direction Function Remark
1 GND Common
2 GND Common
3 GREG Door drive voltage regulator decoupling pin
4 OTW O Chip over heat alarm output
5 SD-CD O Off label position of centre power amplifier Refer to table 3
6 SD-AB O Off label position of left/right channel power amplifier Refer to table 3
7 PWM-DP I Centre PWM positive signal input
8 PWM-DM I Centre PWM negative signal input
9 RESET-CD I Centre power amplifier reset signal Refer to table 3
10 PWM-CM unused
11 PWM-CP unused
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 pin
17 PWM-BP I Left channel PWM positive signal input
18 PWM-BM I Left channel PWM negative signal input
19 RESET-AB I Left/right channel power amplifier reset signal Refer to table 3
20 PWM-AM I Right channel PWM positive signal input
21 PWM-AP I Right channel PWM negative signal input
22 GND Common
23 DGND Digital input/output reference ground
24 GND Common
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