Philips TDA8944AJ
The TDA8944AJ is a dual-channel audio power amplifier with DC gain control. It has an output power of 2 × 7 W at an 8 Ω load and a 12 V supply. The circuit contains two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic.| Part No. | TDA8944AJ |
|---|---|
| Datasheet | TDA8944AJ Download |
| Manufacturer |  Philips |
| Description | 2 x 7 W BTL audio amplifier |
| Buy | Stock & Price |
FEATURES
s Gain/volume adjustment via a DC control pin s Soft clipping s Operating at a low supply voltage s Standby and mute mode s No on/off switching plops s Low standby current s High supply voltage ripple rejection s Outputs short-circuit protected to ground, supply and across the load s Thermally protected s Printed-circuit board compatible with TDA8946AJ and TDA8580J. 3.APPLICATIONS
s Mains fed applications (e.g. TV sound) s PC audio s Portable audio. 4. Quick reference data Table 1: Quick reference data Symbol Parameter VCC supply voltage Iq quiescent supply current Istb standby supply current Po output power THD total harmonic distortion Conditions VCC = 12 V; RL = ∞ THD = 10%; RL = 8 Ω; VCC = 12 V Po = 1 W Min Typ Max Unit 4.5 12 18 V - 40 50 mA - - 10 µA 67- W - 0.07 0.5 % Philips Semiconductors TDA8944AJ 2 x 7 W BTL audio amplifier with DC gain control Table 1: Quick reference data…continued Symbol Parameter Conditions Gv(max) maximum voltage gain Gv(cr) voltage gain control range SVRR supply voltage ripple rejection Min Typ Max Unit 29 30 31 dB - 80 - dB - 55 - dB 5.
