1 Features

• Stereo audio DAC:

– 102-dBA signal-to-noise ratio

– 16-, 20-, 24-, or 32-bit data

– Supports sample rates from 8 kHz to 96 kHz

– 3D, bass, treble, EQ, or 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

• Low power: 14-mW stereo 48-kHz playback with

3.3-V analog supply

• Ultra-low-power mode with passive analog bypass

• Programmable I/O 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- and rightjustified,

DSP, and TDM modes

• Extensive modular power control

• Power supplies:

– Analog: 2.7 V to 3.6 V

– Digital Core: 1.525 V to 1.95 V

– Digital I/O: 1.1 V to 3.6 V

• Package: 5-mm × 5-mm, 32-pin VQFN

2 Applications

• Headsets

• IP network cameras

• IP telephones

• Wireless speakers

3 Description

The TLV320AIC3104 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. The

device includes extensive register-based power

control is included, thus enabling stereo 48-kHz DAC

playback as low as 14 mW from a 3.3-V analog

supply, making the device ideal for portable batterypowered

audio and telephony applications.

The record path of the TLV320AIC3104 contains

integrated microphone bias, digitally controlled stereo

microphone preamplifier, and automatic gain control

(AGC), with mix/mux capability among the multiple

analog inputs. During record, programmable filters

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.