TDA8929T Datasheet, PDF (3/36 Pages) NXP Semiconductors – Controller class-D audio amplifier

Philips Semiconductors
Controller class-D audio amplifier
Preliminary specification
TDA8929T
1 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).
3 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 × 50 W or 2 × 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.
2 APPLICATIONS
• Television sets
• Home-sound sets
• Multimedia systems
• All mains fed audio systems
• Car audio (boosters).
4 ORDERING INFORMATION
TYPE NUMBER
TDA8929T
NAME
SO24
PACKAGE
DESCRIPTION
plastic small outline package; 24 leads; body width 7.5 mm
VERSION
SOT137-1
2001 Dec 11
3