1 Features
1• Stereo Audio DAC
– 102-dBA Signal-to-Noise Ratio
– 16/20/24/32-Bit Data
– Supports Sample 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 Sample Rates From 8 kHz to 96 kHz
– Digital Signal Processing and Noise Filtering
Available During Record
• Six Audio Input Pins
– One Stereo Pair of Single-Ended Inputs
– One Stereo Pair of Fully Differential Inputs
• Six Audio Output Drivers
– Stereo Fully Differential or Single-Ended
Headphone Drivers
– Fully Differential Stereo Line Outputs
– Stereo 8-Ω, 500-mW/Channel Speaker Drive
Capability
• 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 QFN

2 Applications
• Digital Cameras
• Smart Cellular Phones

3 Description
The TLV320AIC3101 is a low-power stereo audio
codec with stereo headphone amplifier, as well as
multiple inputs and outputs that 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 TLV320AIC3101 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.