1 Features

1• Stereo 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

• Stereo Audio ADC

– 92-dBA Signal-to-Noise Ratio

– Supports Rates From 8 kHz to 96 kHz

– Digital Signal Processing and Noise Filtering

Available During Record

• Six Audio Input Pins

– Six Stereo Single-Ended Inputs

• Six Audio Output Drivers

– 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

• Ultralow-Power Mode with Passive Analog Bypass

• 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

• Package: 5-mm × 5-mm 32-Pin VQFN

2 Applications

• Digital Cameras

• Smart Cellular Phones

3 Description

The TLV320AIC3105 is a low-power stereo audio

codec with multiple single-ended inputs and a stereo headphone amplifier. The output stages are

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 TLV320AIC3105 contains

integrated microphone bias, digitally controlled stereo

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 stereo DAC and selected inputs, through programmable volume controls, to the various

outputs.