The TLV320AIC3105 is a low-power stereo audio codec for portable audio/telephony applications. It features multiple single-ended inputs and a stereo headphone amplifier. The output stages can be programmed 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. 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 may occur.
The TLV320AIC3105 is a low‑power stereo audio codec designed for portable audio and telephony applications. It supports multiple single‑ended inputs, a stereo headphone amplifier, and programmable power‑saving modes. Typical uses include digital cameras, smart phones, and stereo audio DACs.
The document lists the device's pin assignments, packaging, absolute maximum ratings, and detailed electrical characteristics such as supply voltage ranges, current consumption, signal‑to‑noise ratio, total harmonic distortion, and supported audio sampling rates from 8 kHz to 96 kHz. Timing diagrams for I²C, I²S, left/right‑justified, DSP, and TDM modes are also provided.
| Analog supply voltage (AVDD) | 2.7 V – 3.6 V |
|---|---|
| Digital core supply voltage (DVDD) | 1.525 V – 1.95 V |
| Digital I/O supply voltage (IOVDD) | 1.1 V – 3.6 V |
| Supported audio sampling rates | 8 kHz – 96 kHz |
| Signal‑to‑noise ratio (ADC) | 92 dB (typ) |
| Total harmonic distortion (DAC) | ≤ 0.75 % (typ) |
| Package type | 5 mm × 5 mm 32‑pin QFN |
| Maximum power dissipation | 500 mW |
The analog supply voltage (AVDD) can be between 2.7 V and 3.6 V.
It supports audio sampling rates from 8 kHz up to 96 kHz.
The device is offered in a 5 mm × 5 mm 32‑pin QFN package.
The maximum power dissipation is limited to 500 mW.