TDA7491HV 查看數據表（PDF） - STMicroelectronics
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TDA7491HV Datasheet PDF : 26 Pages
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Pin description
TDA7491HV
2.2
Pin list
Table 2. Pin description list
Number
Name
Type
1
SUB_GND POWER
2,3
OUTPUTB OUT
4,5
PGNDB
POWER
6,7
PVCCB
8,9
OUTNB
POWER
OUT
10,11 OUTNA
OUT
12,13 PVCCA
POWER
14,15 PGNDA
POWER
16,17
18
OUTPA
PGND
OUT
POWER
19
VDDPW
OUT
20
STBY
INPUT
21
MUTE
INPUT
22
INPA
INPUT
23
INNA
INPUT
24
ROSC
OUT
25
SYNCLCK IN/OUT
26
VDDS
OUT
27
SGND
28
DIAG
29
SVR
30
GAIN0
31
GAIN1
32
INPB
33
INNB
34
VREF
35
SVCC
36
VSS
POWER
OUT
OUT
INPUT
INPUT
INPUT
INPUT
OUT
POWER
OUT
Description
Connect to the frame
Positive PWM for right channel
Power stage round for right channel
Power supply for right channel
Negative PWM output for right channel
Negative PWM output for right channel
Power supply for left channel
Power stage round for left channel
Positive PWM output for left channel
Power stage round
3.3 V (nominal) regulator output referred to ground for power
stage
Standby mode control
Mute mode control
Positive differential input of left channel
Negative differential input of left channel
Master oscillator frequency-setting pin
Clock in/out for external oscillator
3.3 V (nominal) regulator output referred to ground for signal
blocks
Signal round
Open-drain diagnostic output
Supply voltage rejection
Gain setting input 1
Gain setting input 2
Positive differential input of right channel
Negative differential input of right channel
Half VDDS (nominal) referred to ground
Signal power supply
3.3 V (nominal) regulator output referred to power supply
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