
www.ti.com
SLAS671 – FEBRUARY 2010
Low-Power Stereo Audio DAC With Audio Processing
and Mono Class-D Speaker Amplifier
1
INTRODUCTION
1.1
Features
1.2
Applications
1234
Stereo Audio DAC with 95-dB SNR
Portable Audio Devices
Supports 8-kHz to 192-kHz Sample Rates
Mobile Internet Devices
Mono Class-D BTL Speaker Driver (2.5 W Into
eBooks
4-
Ω or 1.6 W Into 8-Ω)
Two Single-Ended Inputs With Mixing and
1.3
Description
Output Level Control
Stereo Headphone/Lineout and Mono Class-D
The
TLV320DAC3100
is
a
low-power,
highly
Speaker Outputs Available
integrated, high-performance stereo audio DAC with
Microphone Bias
24-bit stereo playback and digital audio processing
Headphone Detection
blocks.
25 Built-in Digital Audio Processing Blocks
The
device
integrates
headphone
drivers
and
(PRB_P1 – PRB_P25) Providing Biquad and FIR
speaker drivers. The mono speaker driver can drive
Filters, DRC, and 3-D Structures
loads down to 4
Ω. The TLV320DAC3100 has a suite
Digital Mixing Capability
of
built-in
processing
blocks
for
digital
audio
Pin Control or Register Control for
processing.
The
digital
audio
data
format
is
Digital-Playback Volume-Control Settings
programmable to work with popular audio standard
Digital Sine-Wave Generator for Beeps and Key
protocols (I2S, left/right-justified) in master, slave,
Clicks (PRB_P25)
DSP, and TDM modes. Bass boost, treble, or EQ can
Programmable PLL for Flexible Clock
be
supported
by
the
programmable
digital
Generation
signal-processing block. An on-chip PLL provides the
I2S, Left-Justified, Right-Justified, DSP, and
high-speed
clock
needed
by
the
digital
TDM Audio Interfaces
signal-processing block. The volume level can be
I2C Control With Register Auto-Increment
controlled either by pin control or by register control.
Full Power-Down Control
The audio functions are controlled using the I2C serial
Power Supplies:
bus.
– Analog: 2.7 V–3.6 V
The TLV320DAC3100 has a programmable digital
– Digital Core: 1.65 V–1.95 V
sine-wave generator and is available in a 32-pin QFN
– Digital I/O: 1.1 V–3.6 V
package.
– Class-D: 2.7 V–5.5 V (SPKVDD
≥ AVDD)
TEXT ADDED FOR ALIGNMENT
5-mm × 5-mm 32-QFN Package
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
I2C is a trademark of NXP B.V.
3
MATLAB is a trademark of The MathWorks, Inc.
4
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.