Philips TDA8944J User Manual

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TDA8944J
2 x 7 W stereo Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 14 February 2000 Product specification
c
c
1. General description
The TDA8944J is a dual-channel audio power amplifier with an output power of
2 × 7W at an 8Ω 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. The TDA8944J
comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8944J is
printed-circuit board (PCB) compatible with all other types in the TDA894x family.
One PCB footprint accommodates both the mono and the stereo products.
2. Features
Few external components
Fixed gain
Standby and mute mode
No on/off switching plops
Low standby current
High supply voltage ripple rejection
Outputs short-circuit protected to ground, supply and across the load
Thermally protected
Printed-circuit board compatible.
3. Applications
Mains fed applications (e.g. TV sound)
PC audio
Portable audio.
4. Quick reference data
Table 1: Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
V
CC
supply voltage 6 12 18 V
I
q
quiescent supply current V
CC
=12V; R
L
= - 2436mA
I
stb
standby supply current - - 10 μA
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Summary of Contents

Page 1 - TDA8944J

TDA8944J2 x 7 W stereo Bridge Tied Load (BTL) audio amplifierRev. 02 — 14 February 2000 Product specificationcc1. General descriptionThe TDA8944J is a

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 10 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 11 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 12 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 13 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 14 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 15 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 17 of 229397 750 06861 © NXP B.V. 2010. A

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 2 of 229397 750 06861 © NXP B.V. 2010. Al

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© NXP B.V. 2010. Printed in The NetherlandsAll rights are reserved. Reproduction in whole or in part is prohibited without the priorwritten consent of

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 3 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 4 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 5 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 6 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 7 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 8 of 229397 750 06861 © NXP B.V. 2010. Al

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NXP SemiconductorsTDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 9 of 229397 750 06861 © NXP B.V. 2010. Al

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