TLV320AIC34 Datasheet, PDF (1/91 Pages) Texas Instruments – FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY

BurrĆBrown Products
from Texas Instruments
TLV320AIC34
SLAS538 – OCTOBER 2007
FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY
FEATURES
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• Digital Microphone Input Support
•234 Four-Channel Audio DAC
– 102-dBA 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
– Flexible Power Saving Modes and
Performance Are Available
• Concurrent Digital Microphone and Analog
Microphone Support Available
• 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
• Four-Channel Audio ADC
• Package: 6-mm × 6-mm 87-BGA
– 92-dBA Signal-to-Noise Ratio
– Supports Rates From 8 kHz to 96 kHz
– Digital Signal Processing and Noise
Filtering Available During Record
APPLICATIONS
• Digital Cameras
• Smart Cellular Phones
• Twelve Audio Inputs
– Programmable in Single-Ended or Fully
Differential Configurations
– 3-State Capability for Floating Input
Configurations
• Fourteen Audio Output Drivers
– Stereo 8-Ω, 500-mW/Channel Speaker Drive
Capability
– Multiple Fully Differential or Single-Ended
Headphone Drivers
– Multiple Fully Differential or Single-Ended
Line Outputs
– Fully Differential Mono Outputs
• Low Power: 15-mW Stereo 48-kHz Playback
With 3.3-V Analog Supply
• Ultralow-Power Mode With Passive Analog
Bypass
• Programmable Input/Output Analog Gains
• Automatic Gain Control (AGC) for Record
DESCRIPTION
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.
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.
• Programmable Microphone Bias Level
• Dual Programmable PLLs for Flexible Clock
Generation
• I²C Control Bus
• Dual Audio Serial Data Busses
– Support I²S, Left/Right-Justified, DSP, PCM,
and TDM Modes
– 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.
MicroStar Junior is a trademark of Texas Instruments.
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Bluetooth is a trademark of Bluetooth SIG, Inc.
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All other trademarks are the property of their respective owners.
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ADVANCE INFORMATION concerns new products in the sampling
or preproduction phase of development. Characteristic data and
other specifications are subject to change without notice.
Copyright © 2007, Texas Instruments Incorporated