TLV320ADC3100IRGER.A中文资料德州仪器数据手册PDF规格书

1 Features

1• Stereo Audio ADC:

– 92-dBA Signal-to-Noise Ratio

– Supports ADC Sample Rates From 8 kHz to

96 kHz

• Flexible Digital Filtering With Programmable

Coefficients and Built-In Processing Blocks:

– Low-Latency IIR Filters for Voice

– Linear Phase FIR Filters for Audio

– Up to 5 Additional Programmable Bi-Quad

Filters

– Programmable High-Pass Filter

• Four Audio Inputs With Configurable Automatic

Gain Control (AGC):

– Programmable in Single-Ended or Fully

Differential Configurations

– Optionally Tri-Stated for Easy Interoperability

With Other Audio Devices

• 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

• Programmable Microphone Bias

• Programmable PLL for Clock Generation

• I2C Control Bus

• Audio Serial Data Bus Supports I2S, Left- and

Right-Justified, DSP, PCM, and TDM Modes

• Power Supplies:

– Analog: 2.7 V to 3.6 V

– Digital: Core: 1.65 V to 1.95 V,

I/O: 1.1 V–3.6 V

• Package: 4-mm × 4-mm, 24-Pin RGE (VQFN)

2 Applications

• Voice-Activated Systems

• Smart Speakers, Voice-Enabled Assistants

• Portable Low-Power Audio Systems

• Noise-Cancellation Systems

• Front-End Voice or Audio Processors for Digital

Audio

3 Description

The TLV320ADC3100 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 (PGA) providing up to

40-dB analog gain or automatic gain control (AGC).

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. The TLV320ADC3100

integrates programable channel gain, digital volume

control, a phase-locked loop (PLL), programmable

biquad filters, and low latency filter modes. Preprogrammed

built-in processing blocks (PRBs) that

can be chosen based on the specific application

needs, allows optimization of performance and

power. Low power consumption coupled with its

flexibility make the TLV320ADC3100 ideal for batterypowered

portable equipment. The TLV320ADC3100

is form-factor and software compatible with the

TLV320ADC3101.