TLV320ADC3101_15 Datasheet, PDF (1/92 Pages) Texas Instruments – TLV320ADC3101 Low-Power Stereo ADC With Embedded miniDSPnull for Wireless Handsets and Portable Audio

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TLV320ADC3101
SLAS553B – NOVEMBER 2008 – REVISED AUGUST 2015
TLV320ADC3101 Low-Power Stereo ADC With Embedded miniDSP
for Wireless Handsets and Portable Audio
1 Features
•1 Stereo Audio ADC
– 92-dBA Signal-to-Noise Ratio
– Supports ADC Sample Rates From 8 kHz to
96 kHz
• Instruction-Programmable Embedded miniDSP
• Flexible Digital Filtering With RAM Programmable
Coefficient, Instructions, and Built-In Processing
Blocks
– Low-Latency IIR Filters for Voice
– Linear Phase FIR Filters for Audio
– Additional Programmable IIR Filters for EQ,
Noise Cancellation or Reduction
– Up to 128 Programmable ADC Digital Filter
Coefficients
• Six Audio Inputs With Configurable Automatic
Gain Control (AGC)
– Programmable in Single-Ended or Fully
Differential Configurations
– Can Be 3-Stated for Easy Interoperability With
Other Audio ICs
• Low Power Consumption and Extensive Modular
Power Control:
– 6-mW Mono Record, 8-kHz
– 11-mW Stereo Record, 8-kHz
– 10-mW Mono Record, 48-kHz
– 17-mW Stereo Record, 48-kHz
• Dual Programmable Microphone Bias
• Programmable PLL for Clock Generation
• I²C Control Bus
• Audio Serial Data Bus Supports I²S, Left/Right-
Justified, DSP, PCM, and TDM Modes
• Digital Microphone Input Support
• Two GPIOs
• Power Supplies:
– Analog: 2.6 V to 3.6 V
– Digital: Core: 1.65 V to 1.95 V,
I/O: 1.1 V–3.6 V
• 4-mm × 4-mm 24-Pin RGE (VQFN)
2 Applications
• Wireless Handsets
• Portable Low-Power Audio Systems
• Noise-Cancellation Systems
• Front-End Voice or Audio Processor for Digital
Audio
3 Description
The TLV320ADC3101 device is a low-power, stereo
audio analog-to-digital converter (ADC) supporting
sampling rates from 8 kHz to 96 kHz with an
integrated programmable-gain amplifier providing up
to 40-dB analog gain or AGC. A programmable
miniDSP is provided for custom audio processing.
Front-end input coarse attenuation of 0 dB, –6 dB, or
off, is also provided. The inputs are programmable in
a combination of single-ended or fully differential
configurations. Extensive register-based power
control is available via an I²C interface, enabling
mono or stereo recording. Low power consumption
makes the TLV320ADC3101 ideal for battery-
powered portable equipment.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV320ADC3101 VQFN (24)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
Processor
I²C
ADC
ADC
I²S, LJ, RJ, DSP, TDM
miniDSP
Digital Mic
TLV320ADC3101
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.