TLV320AIC3104IRHBR UART Interface IC CODECs Lo-Pwr Stereo CODEC

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 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 QFN

2 Applications

• Digital Cameras
• Smart Cellular Phones
• PDAs
• Portable Computing
• Communication
• Entertainment Applications

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 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