AT73C213 Datasheet | Atmel

Features - Stereo Audio DAC 2.7V to 3.3V Analog Supply Operation 2.4V to 3.3V Digital Supply Operation 20-bit Stereo Audio DAC 93 d B SNR Playback Stereo Channels 32 Ohm/20 m W Stereo Headset Drivers with Master Volume and Mute Controls Stereo Line Level Input with Volume Control/mute and Playback through the Headset Drivers - Differential Monaural Auxiliary Input, with Volume Control/mute and Playback through the Headset Drivers - Accepts Mixed Signals from All Signal Paths (Line Inputs, External Mono and DAC Output) - 8, 11.024, 16, 22.05, 24, 32, 44.1 and 48 k Hz Sampling Rates - 256x or 384x Fs Master Clock Frequency - I2S Serial Audio Interface - Mono Audio Power Amplifier - Supply Input from Main Li-Ion Battery - 440m W on 8 Ohm Load - Low Power Mode for Earphone - Programmable Volume Control (-22 to +20 d B) - Fully Differential Structure, Input and Output - 8 m A Drain Current in Full Power Mode - Power-down mode (Consumption Less than 2u A) - Minimum External ponents (Direct Connection of the Loudspeaker) - Applications: Mobile Phones, Digital Cameras, PDAs, Smart Phones, DECT Phones, Music Players - - - - - - Power Management for Mobiles (PM) AT73C213 Audio Interface for Portable Handsets 1. Description The AT73C213 is a fully integrated, low-cost, bined stereo audio DAC and audio power amplifier circuit targeted for Li-Ion or Ni-Mh battery powered devices such as mobile phones, smartphones, PDA, DECT phones, digital still cameras, music players or any other type of handheld device where an audio interface is needed. The stereo DAC section is a plete high performance, stereo audio digital-to-analog converter delivering a 93 d B dynamic range. It prises a multibit sigma-delta modulator with dither, continuous time analog filters and analog output drive circuitry. This architecture provides a high insensitivity to clock jitter. The digital interpolation filter increases the sample rate by a factor of 8 using 3 linear phase half-band filters cascaded, followed by a...