Electronic Device And Electronic Circuit

Data of electronic device , PCB Design and electronic circuit

Google
 
Web basicelectronic.blogspot.com

Sunday, February 08, 2009

Stereo Amplifier with Mute and Stand-by Circuit

SINGLE SUPPLY

TDA7499
6 + 6W STEREO AMPLIFIER WITH MUTE AND STAND-BY
DESCRIPTION
The UTC TDA7499 is class AB dual Audio Power Amplifier
and designed for high quality sound application as Hi-Fi
music centers and stereo TV sets.

FEATURES
- Wide supply voltage range up to ±18V
- 6 + 6W @ THD =10%, RL = 8Ω, VS = +14V
- No POP at Turn-On/Off
- MUTE (POP free)
- STAND-BY feature (Low Iq)
- Short circuit protection to GND
- Thermal overload protection

MUTE/STAND-BY FUNCTION
MUTE/STAND-BY function is assembled at pin 5 and to control
the amplifier status by two different thresholds,referred to +VS.
-When Vpin5 higher than = +VS - 2.5V the amplifier is in Stand-by
mode and the final stage generators are off
-When Vpin5 is between +VS - 2.5V and +VS - 6V the final stage
current generators are switched on and the amplifier is in mute mode
-When Vpin5 is lower than +VS - 6V the amplifier is play mode.

TDA7499 Datasheet Pdf

Labels: ,