DESCRIPTION
The WM8953 is a low power high performance stereo ADC designed for mobile handsets and other portable devices.
Four single-ended or differential input connections are provided, with up to 60dB of analogue gain in each input path. Stereo 24- bit sigma-delta ADCs provide hi-fi quality audio recording of microphones or line input. A programmable high pass filter is available in the ADC path for removing DC offsets and suppressing wind and other low frequency noise.

FEATURES
• SNR 94dB (‘A’ weighted)
• THD -82dB at 48kHz, 3.3V
• Full stereo microphone / line input interface
• Low noise MICBIAS
• Low power consumption
• Full analogue and digital volume control
• PLL provides flexible clocking scheme
• 2-wire, 3-wire or 4-wire control
• Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48kHz
• GPIO functions available
• Digital supply: 1.71V – 3.6V
• Analogue supply: 2.7V – 3.6V
• W-CSP package (3.226 x 3.44 x 0.7mm, 0.5mm pitch)

APPLICATIONS
• Multimedia phones
• General purpose low power audio ADC