Tri pat h Tec hnol og y, I nc. - Pr elimi nar y I nform at ion
TDA1400
MONO CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING
DIGITAL POWER PROCESSING
T M
TECHNOLOGY
Preliminary Information
Revision 0.65 – February 2006
GENERAL DESCRIPTION
The TDA1400 is a one-channel, Amplifier Driver that uses Tripath’s proprietary Digital Power Processing
(DPP
TM
) technology. The TDA1400 offers higher integration over previous Tripath amplifiers driver
chipsets while providing exceptional audio performance for real world applications. Class-T amplifiers
offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers.
The TDA1400 is typically configured as a single supply, bridged output. This makes the power supply
requirements simpler and maximizes the output power for a given voltage rail. Additionally, the TDA1400
can be configured as a split supply, bridged amplifier, with the addition of some external components. The
TDA1400 is capable of full range operation but the target application is subwoofers due to the high output
power capability and single channel operation.
Applications
Home theater Subwoofers
Car Audio Subwoofers
Professional Active Speakers
High Power consumer full-range amplifier
Features
Class-T architecture with proprietary DPP
“Audiophile” Sound Quality
Full Audio Bandwidth, 20Hz to 20kHz
High Efficiency
Supports wide range of output power levels
and output loads by changing supply voltage
and external Mosfets
Compatible with unregulated power supplies
Output over-current protection
Over- and under-voltage protection
Over-temperature protection
48-Pin LQFP Package
Benefits
Reduced system cost with smaller/less
expensive power supply and heat sink
Signal fidelity equal to high quality
Class-AB amplifiers
High dynamic range compatible with digital
media such as CD and DVD
1
TDA1400 – Rev. 0.65/KLi/02.06
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
