TLV320AIC3104

• 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

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.