TDA7492 STMicroelectronics, TDA7492 Datasheet - Page 23

• Manufacturer Part Number: TDA7492
• Description: IC, AMP, AUDIO, CLASS D, 36POWERSO
• Manufacturer: STMicroelectronics

Specifications of TDA7492

• Amplifier Class: D
• No. Of Channels: 2
• Supply Voltage Range: 8V To 26V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Amplifier Case Style: PowerSO
• No. Of Pins: 36
• Svhc: No SVHC
• Output Power: 40W
• Thd + N: 0.1% @ 1W, 8ohm, VCC=25V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7492
6
6.1
Applications information
Mode selection
The three operating modes of the TDA7492 are set by the two inputs, STBY (pin 20) and
MUTE (pin 21).
The protection functions of the TDA7492 are realized by pulling down the voltages of the
STBY and MUTE inputs shown in
must be limited to 200 µA.
Table 6.
1. Drive levels defined in
Figure 29. Standby and mute circuits
Figure 30. Turn on/off sequence for minimizing speaker “pop”
Standby
Mute
Play
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.
Mode
Mode settings
0 V
0 V
Table 5: Electrical specifications on page 9
Standby
Mute
3.3 V
3.3 V
Doc ID 14926 Rev 4
L
H
H
(1)
(1)
Figure
R2
30 kΩ
R4
30 kΩ
29. The input current of the corresponding pins
STBY
C7
2.2 µF
C15
2.2 µF
STBY
MUTE
X (don’t care)
L
H
TDA7492
Applications information
MUTE
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