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TLV320AIC31 Datasheet Preview

TLV320AIC31 Datasheet

LOW POWER STEREO AUDIO CODEC

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TLV320AIC31 pdf
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TLV320AIC31
SLAS497A – AUGUST 2006 – REVISED SEPTERMBER 2006
LOW POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY
FEATURES
Stereo Audio DAC
– 100 dB A Signal-to-Noise Ratio
– 16/20/24/32-Bit Data
– Supports Rates From 8 kHz to 96 kHz
– 3D/Bass/Treble/EQ/De-Emphasis Effects
Stereo Audio ADC
– 92 dB A Signal-to-Noise Ratio
– Supports Rates From 8 kHz to 96 kHz
Six Audio Input Pins
– Two Stereo Differential/Single-Ended Inputs
Six Audio Output Drivers
– Stereo 8-, 500 mw/Channel Speaker Drive
Capability
– Stereo Fully-Differential or Single-Ended
Headphone Drivers
– Fully Differential Stereo Line Outputs
Low Power: 14-mW Stereo, 48-kHz Playback
With 3.3-V Analog Supply
Programmable Input/Output Analog Gains
Automatic Gain Control (AGC) for Record
Programmable Microphone Bias Level
Programmable PLL for Flexible Clock
Generation
I2C Control Bus
Audio Serial Data Bus Supports I2S,
Left/Right-Justified, DSP, and TDM Modes
Extensive Modular Power Control
Power Supplies:
– Analog: 2.7 V – 3.6 V
– Digital Core: 1.525 V – 1.95 V
– Digital I/O: 1.1 V – 3.6 V
Available Packages: 5 × 5 mm, 32-Pin QFN
DESCRIPTION
The TLV320AIC31 is a low-power stereo-audio
codec with a stereo headphone amplifier, as well as
multiple inputs and outputs, programmable in
single-ended or fully-differential configurations.
Extensive register-based power control is included,
enabling stereo 48-kHz DAC playback as low as 14
mW from a 3.3-V analog supply, making it ideal for
portable, battery-powered audio and telephony
applications.
The record path of the TLV320AIC31 contains
integrated microphone bias, digitally-controlled
stereo-microphone pre-amp, and automatic gain
control (AGC), with mix/mux capability among the
multiple analog inputs. The playback path includes
mix/mux capability from the stereo DAC and selected
inputs, through programmable volume controls, to
the various outputs.
The TLV320AIC31 contains four high-power output
drivers as well as two fully differential output drivers.
The high-power output drivers are capable of driving
a variety of load configurations, including up to four
channels of single-ended 16-headphones using
ac-coupling capacitors, or stereo 16-headphones
in a cap-less output configuration. In addition, pairs
of drivers can be used to drive 8-speakers in a
BTL configuration at 500 mW per channel.
The stereo audio DAC supports sampling rates from
8 kHz to 96 kHz and includes programmable digital
filtering in the DAC path for 3D, bass, treble,
midrange effects, speaker equalization, and
de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz rates.
The stereo-audio ADC supports sampling rates from
8 kHz to 96 kHz and is preceded by programmable
gain amplifiers providing up to +59.5 dB analog gain
for low-level microphone inputs.
The serial control bus supports the I2C protocol,
while the serial-audio data bus is programmable for
I2S, left/right justified, DSP, or TDM modes. A highly
programmable PLL is included for flexible clock
generation and support for all standard audio rates
from a wide range of available MCLKs, varying from
512 kHz to 50 MHz, with special attention paid to the
most popular cases of 12 MHz, 13 MHz, 16 MHz,
19.2 MHz, and 19.68 MHz system clocks.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated



Burr-Brown
Burr-Brown

TLV320AIC31 Datasheet Preview

TLV320AIC31 Datasheet

LOW POWER STEREO AUDIO CODEC

No Preview Available !

TLV320AIC31 pdf
TLV320AIC31
SLAS497A – AUGUST 2006 – REVISED SEPTERMBER 2006
The TLV320AIC31 operates from an analog supply
of 2.7 V – 3.6 V, a digital core supply of 1.525 V –
1.95 V, and a digital I/O supply of 1.1 V – 3.6 V. The
device is available in a 5 × 5 mm, 32-lead QFN
package.
SIMPLIFIED BLOCK DIAGRAM
www.ti.com
Voltage Supplies
Audio Serial
Bus
IN1L+
IN1L−
IN1R+
IN1R−
IN2L
IN2R
MIXING,
MUXING
PGA
0/+59.5dB
0.5dB steps
PGA
0/+59.5dB
0.5dB steps
ADC
ADC
Volume Ctl
& Effects
Volume Ctl
& Effects
DAC
DAC
MIXING,
MUXING,
VOLUME
CONTROLS
Bias/
Reference
Audio Clock
Generation
I2C Serial
Control Bus
HPL+
HPL−/HPLCOM
HPR−/HPRCOM/
SPKFC
HPR+
LINE_OUT_R+
LINE_OUT_R−
LINE_OUT_L+
LINE_OUT_L−
Figure 1. Simplified Codec Block Diagram
PRODUCT
TLV320AIC31
PACKAGE
QFN-32
PACKAGE/ORDERING INFORMATION
PACKAGE
DESIGNATOR
RHB
OPERATING
TEMPERATURE
RANGE
–40°C to 85°C
ORDERING NUMBER
TLV320AIC31IRHBT
TLV320AIC31IRHBR
TRANSPORT
MEDIA, QUANTITY
Tape and Reel, 250
Tape and Reel, 3000
2 Submit Documentation Feedback


Part Number TLV320AIC31
Description LOW POWER STEREO AUDIO CODEC
Maker Burr-Brown
Total Page 30 Pages
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