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 battery-powered 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.
- 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 right-justified, 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