TDA7498MV View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7498MV' PDF : 27 Pages View PDF
TDA7498MV
Application information
5.2
Mode selection
The three operating modes of the TDA7498MV 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 TDA7498MV are enabled by pulling down the voltages of
the STBY and MUTE inputs shown in Figure 19: "Standby and mute circuits". The input
current of the corresponding pins must be limited to 200 µA.
Standby
Mute
Play
Mode
Table 7: Mode settings
STBY
L (1)
H (1)
H
MUTE
X (don’t care)
L
H
Notes:
(1)Drive levels defined in
Figure 19: Standby and mute circuits
Figure 20: Turn on/off sequence for minimizing speaker “pop”
DocID016505 Rev 6
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