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TDA8929T
General description
The TDA8929T is the controller of a two-chip set for a high efficiency class-D audio power amplifier system. The system is divided into two chips:
- TDA8929T; the analog controller chip in a SO24 package
- TDA8926J/ST/TH or TDA8927J/ST/TH; a digital power stage in a DBS17P, RDBS17P or HSOP24 power package.
With this chip set a compact 2 x 50 W or 2 x 100 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from +- 15 up to +- 30 V and consumes a very low quiescent current.
Features
- Operating voltage from +- 15 to +- 30 V
- Very low quiescent current
- Low distortion
- Fixed gain of 30 dB Single-Ended (SE) or 36 dB Bridge-Tied Load (BTL)
- Good ripple rejection
- Internal switching frequency can be overruled by an external clock
- No switch-on or switch-off plop noise
- Diagnostic input for short-circuit and temperature protection
- Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
- Start-up safety test, to protect for short-circuits at the output of the power stage to supply lines
- Electrostatic discharge protection (pin to pin).
Applications
- Television sets
- Home-sound sets
- Multimedia systems
- All mains fed audio systems
- Car audio (boosters).
Related applications
50-60 Hz CRT integrated DTV (TV210D)
DVB-T iDTV reference solution (TV505D)
Mid-range integrated DTV (TV810)
Mainstream integrated LCD DTV reference designs TV520
LCD TV - MMS functionality
Highest-quality digital TV system TV520/8x
Design support
Support Documents
75011358;
Amplifier Overview (2003-06-05)
75010115;
Class D: great sound, slim systems! (2002-08-23)
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