TDA7265B Datasheet, PDF (10/18 Pages) STMicroelectronics – 30 W + 30 W stereo amplifier with mute and standby

Mute standby function
4
Mute standby function
TDA7265B
Pin 5 (MUTE/St-By) controls the amplifier status using two different thresholds with
reference to +V_S :
● when V_pin5 is greater than or equal to +V_S - 2.5 V, the amplifier is in standby mode and
the final stage generators are off
● when V_pin5 is between +V_S - 2.5V and +V_S 6 V, the final stage current generators are
switched on and the amplifier is in mute mode
● when V_pin5 is less than +V_S - 6 V, the amplifier is in play mode.
Figure 11. Mute/standby thresholds on pin 5
+V_S
(V)
26
t
-V_S
-26
V_IN
(mV)
Vpin5
(V)
V_S
V_S-2.5
V_S-6
V_S-10
I_q
(mA)
0
VOUT
(V)
OFF
PLAY
STDBY PLAY
OFF
STDBY
STDBY
MUTE D04AU1570 MUTE
MUTE
MUTE
10/18
Doc ID 022601 Rev 1