參數(shù)資料
型號: TDA7491P
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封裝: ROHS COMPLIANT, SSOP-36
文件頁數(shù): 26/40頁
文件大?。?/td> 714K
代理商: TDA7491P
Applications information
TDA7491P
32/40
Doc ID 13540 Rev 4
7
Applications information
7.1
Mode selection
The three operating modes of the TDA7491P are set by the two inputs STBY (pin 20) and
MUTE (pin 21).
Standby mode: all circuits are turned off, very low current consumption.
Mute mode: inputs are connected to ground and the positive and negative PWM
outputs are at 50% duty cycle.
Play mode: the amplifiers are active.
The protection functions of the TDA7491P are realized by pulling down the voltages of the
STBY and MUTE inputs shown in Figure 50. The input current of the corresponding pins
must be limited to 200 A.
Figure 50.
Standby and mute circuits
Figure 51.
Turn-on/off sequence for minimizing speaker “pop”
Table 7.
Mode settings
Mode
STBY
MUTE
Standby
L (1)
1.
X (don’t care)
Mute
H (1)
L
Play
H
STBY
MUTE
0 V
3.3 V
C7
2.2 F
R2
30 k
Standby
0 V
3.3 V
C15
2.2 F
R4
30 k
Mute
TDA7491P
相關(guān)PDF資料
PDF描述
TDA749213TR 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7492 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7492MV13TR 50 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7492MV 50 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7492P 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
相關(guān)代理商/技術(shù)參數(shù)
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