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TFA9842AJ

Philips
Part Number TFA9842AJ
Manufacturer Philips
Description 7.5W Stereo Power Amplifier
Published Aug 20, 2009
Detailed Description www.DataSheet4U.com TFA9842AJ 7.5 W stereo power amplifier with volume control Rev. 01 — 28 April 2006 Preliminary speci...
Datasheet PDF File TFA9842AJ PDF File

TFA9842AJ
TFA9842AJ

Overview
www.
DataSheet4U.
com TFA9842AJ 7.
5 W stereo power amplifier with volume control Rev.
01 — 28 April 2006 Preliminary specification 1.
General description The TFA9842AJ contains two identical audio power amplifiers.
The TFA9842AJ can be used as two Single-Ended (SE) channels with a volume control.
The maximum gain is 26 dB.
The TFA9842AJ comes in a 9-pin DIL-bent-SIL (DBS9P) power package.
The TFA9842AJ is pin compatible with the TFA9843AJ, TFA9843(B)J, TFA9842(B)J and TFA9841J.
The difference between the TFA9843AJ and the TFA9843(B)J, TFA9842(B)J, TFA9841J is the functionality of pin 7.
The TFA9843AJ has a Volume Control (VC) on pin 7.
The TFA9843(B)J, TFA9842(B)J and TFA9841J have a mode select (MODE) on pin 7.
The TFA9842AJ contains a unique protection circuit that is solely based on multiple temperature measurements inside the chip.
This gives maximum output power for all supply voltages and load conditions with no unnecessary audio holes.
Almost any supply voltage and load impedance combination can be made as long as thermal boundary conditions (number of channels used, external heatsink and ambient temperature) allow it.
2.
Features I I I I I I I I I I I 2 channel SE: 1 W to 7.
5 W operation possibility Soft clipping Input clamps Volume control Standby and Mute mode No on or off switching plops Low standby current High supply voltage ripple rejection Outputs short-circuit protected to ground, supply and across the load Thermally protected Pin compatible with the TFA9843AJ, TFA9843(B)J, TFA9842(B)J and TFA9841J 3.
Applications I I I I I CRT TV and LCD TV Monitors PC speakers Boom box Mini and micro audio receivers www.
DataSheet4U.
com Philips Semiconductors TFA9842AJ 7.
5 W stereo power amplifier with volume control 4.
Quick reference data Table 1.
Symbol VCC Iq ICC(stb) Po Quick reference data Parameter supply voltage quiescent current standby supply current output power Conditions operating VCC = 17 V; RL = ∞ Ω VCC = 17 V; VI(VC) < 0.
8 V THD = 10 %; RL = 4 Ω ; ...


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