tfa9879hn NXP Semiconductors, tfa9879hn Datasheet
tfa9879hn
Manufacturer Part Number
tfa9879hn
Description
Mono Btl Class-d Audio Amplifier For Portable Applications With Digital Input
Manufacturer
NXP Semiconductors
Datasheet
1.TFA9879HN.pdf
(60 pages)
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tfa9879hn/N1
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ALTERA
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1. Introduction
2. General description
3. Features and benefits
3.1 General features
The TFA9879 is a high-efficiency filter-free mono class-D audio amplifier with two
separate digital inputs for mobile applications.
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 (I
a baseband and a multimedia processor.
The TFA9879 is available in a HVQFN24 package.
TFA9879
Mono BTL class-D audio amplifier for portable applications
with digital input
Rev. 01 — 8 April 2010
Closed loop amplifier for:
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 I
‘Pop noise’ free at power-up/power down, during sample rate switching and when
switching between digital inputs
Four separate I
High power supply rejection ratio
Excellent audio performance
OverCurrent Protection (OCP) to protect against short circuits across the speaker,
to the supply line or to ground
OverTemperature Protection (OTP)
Digital inputs protected with UnderFrequency Protection (UFP), OverFrequency
Protection (OFP) and Invalid Bit-clock Protection (IBP)
2
C addresses for multi-channel applications
2
S / PCM / IOM2) are available for connecting both
2
C-bus:
Preliminary data sheet
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