Mono BTL class-D audio amplifier for portable applications
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TFA9879
Mono BTL class-D audio amplifier for portable applications with digital input
Rev. 01 — 8 A...
Description
www.DataSheet4U.com
TFA9879
Mono BTL class-D audio amplifier for portable applications with digital input
Rev. 01 — 8 April 2010 Preliminary data sheet
1. Introduction
The TFA9879 is a high-efficiency filter-free mono class-D audio amplifier with two separate digital inputs for mobile applications.
2. General description
The TFA9879 contains a processor that supports a range of sound processing features including a 5-band parametric equalizer, separate bass and treble control, a dynamic range compressor, soft clip control and volume control. Excellent audio performance combined with high Power Supply Rejection Ratio (PSRR) is achieved through the use of a closed loop configuration. Two independent digital audio inputs (I2S / PCM / IOM2) are available for connecting both a baseband and a multimedia processor. The TFA9879 is available in a HVQFN24 package.
3. Features and benefits
3.1 General features
Closed loop amplifier for: High power supply rejection ratio Excellent audio performance Digital input for high RF immunity High efficiency for maximizing battery life Wide supply voltage range (fully operational from 2.5 V to 5.5 V) Delivers high output power into 4 and 8 load impedances Phase-Locked Loop (PLL); no system clock required Protection including diagnostics via I2C-bus: OverCurrent Protection (OCP) to protect against short circuits across the speaker, to the supply line or to ground OverTemperature Protection (OTP) Digital inputs protec...
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