ADAU1373 Datasheet | Analog Devices

FEATURES 1 stereo ADC and 2 stereo DACs with sampling rates from 8 k Hz to 48 k Hz Low power: 7 m W record, 6 m W playback, 48 k Hz at 1.8 V 8 single-ended or 4 differential inputs with PGA 2 microphone bias reference voltages with current sense 2 stereo digital microphone inputs Flexible analog input/output mixers 1 stereo differential or 2 stereo single-ended line outputs True ground-centered stereo Class-G headphone amplifier, capable of 2 × 50 m W into 16 Ω at 1.8 V, 10% THD Filterless stereo Class-D speaker amplifier, capable of 2 × 880 m W into 8 Ω at 3.6 V, 10% THD Differential earpiece amplifier capable of driving 32 Ω 2 PLLs, supporting input clocks from 8 k Hz to 27 MHz I2C control interface Digital audio processing 3 digital audio input and output ports with ASRC I2S, PCM, right-justified, left-justified modes 4.05 mm × 3.82 mm, 81-ball, 0.4 mm pitch WLCSP package - 40°C to +85°C operating temperature range APPLICATIONS Mobile phones, tablet PCs, e-books, portable media players GENERAL DESCRIPTION The ADAU1373 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 k Hz record and playback. The stereo audio ADCs and DACs support sampling rates from 8 k Hz to 48 k Hz, as well as a digital volume control. Eight single-ended or four differential analog inputs with PGAs are provided for adjusting the gain from - 12 d B to +18 d B. They can be configured for microphones or line level signals. Two stereo digital microphone inputs are supported; four digital microphones can be connected in total. In addition, three serial digital audio input/output ports are provided with asynchronous sample rate converters (ASRCs) to support various sampling rates, allowing for flexible system design in mobile phone applications. The inputs can be mixed and selected before the ADC or configured to bypass the ADC. Two stereo DACs are included, with a flexible mixing option for routing the signals internally. The analog output side consists of line...