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TLV320AIC34
SLAS538A–OCTOBER 2007–REVISED NOVEMBER 2007
FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY
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FEATURES
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Digital Microphone Input Support
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Four-Channel Audio DAC
Concurrent Digital Microphone and Analog
Microphone Support Available
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102-dBA Signal-to-Noise Ratio
16/20/24/32-Bit Data
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Extensive Modular Power Control
Power Supplies:
Supports Rates From 8 kHz to 96 kHz
3D/Bass/Treble/EQ/De-Emphasis Effects
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Analog: 2.7 V–3.6 V
Digital Core: 1.65 V–1.95 V
Digital I/O: 1.1 V–3.6 V
Flexible Power Saving Modes and
Performance Are Available
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Four-Channel Audio ADC
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Package: 6-mm × 6-mm 87-BGA
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92-dBA Signal-to-Noise Ratio
APPLICATIONS
Supports Rates From 8 kHz to 96 kHz
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Digital Cameras
Digital Signal Processing and Noise
Filtering Available During Record
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Smart Cellular Phones
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Twelve Audio Inputs
DESCRIPTION
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Programmable in Single-Ended or Fully
Differential Configurations
The TLV320AIC34 is a low-power four-channel audio
codec with four-channel 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 four-channel 48-kHz DAC playback as low
as 15 mW from a 3.3-V analog supply, making it ideal
for portable battery-powered audio and telephony
applications.
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3-State Capability for Floating Input
Configurations
Fourteen Audio Output Drivers
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Stereo 8-Ω, 500-mW/Channel Speaker Drive
Capability
Multiple Fully Differential or Single-Ended
Headphone Drivers
The record path of the TLV320AIC34 contains
integrated microphone bias, digitally controlled
four-channel microphone preamplifier, and automatic
gain control (AGC), with mix/mux capability among
the multiple analog inputs. Programmable filters are
available during record which can remove audible
noise that can occur during optical zooming in digital
cameras. The playback path includes mix/mux
capability from the four-channel DAC and selected
inputs, through programmable volume controls, to the
various outputs.
Multiple Fully Differential or Single-Ended
Line Outputs
Fully Differential Mono Outputs
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Low Power: 15-mW Stereo 48-kHz Playback
With 3.3-V Analog Supply
Ultralow-Power Mode With Passive Analog
Bypass
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Programmable Input/Output Analog Gains
Automatic Gain Control (AGC) for Record
Programmable Microphone Bias Level
Dual Programmable PLLs for Flexible Clock
Generation
I2C Control Bus
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Dual Audio Serial Data Busses
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Support I2S, Left/Right-Justified, DSP, PCM,
and TDM Modes
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Enable Asynchronous Simultaneous
Operation of Busses and Data Converters
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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.
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MicroStar Junior is a trademark of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
All other trademarks are the property of their respective owners.
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 © 2007, Texas Instruments Incorporated