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Key Features

■ Android Wired Headset v1.1 compliant

■ High performance mono microphone to ADC record path with 90 dB SNR

□ ADC digital filters with Audio and Voice mode high-pass characteristics

□ Low-noise microphone bias regulator with programmable output

■ High performance stereo DAC to headphone playback path with 100 dB SNR

□ DAC digital filters with Audio and Voice mode high-pass cutoff and 5-band equalizer

■ Advanced Accessory Detect supports

□ 3-pole and 4-pole jack detection

□ MIC/GND polarity switching

□ Multiple button detection

□ Headphone impedance testing

■ Microphone input with automatic level control

■ Digital sidetone path with gain

■ Digital tone generator

■ System controller for simplified pop-free start-up and shut-down

■ Mixed sample rates of 24 kHz ADC, 48 kHz DAC supported from a single digital interface

■ Sample rates of up to 96 kHz at 24-bit resolution

■ Shut-down mode for very low current consumption during standby

■ Phase locked loop with WCLK tracking to generate system clock

■ 4-wire digital audio interface with support for I2S, TDM and other audio formats

■ 2-wire I2C compatible interface with support for High Speed mode up to 3.4 MHz

■ 4.5 mm x 1.6 mm WLCSP RouteEasy? package for low cost PCB manufacture