DESCRIPTION
The WM8737L is a low power stereo audio ADC designed specifically for portable applications such as minidisc and memory audio / voice recorders.
The device offers three sets of stereo inputs, which can be configured for line-level signals, for internal or table-top microphones, or for DC measurement (battery monitor). A programmable gain amplifier can be used for automatic level control (ALC) with user programmable hold, attack and decay times. The device also has a selectable high pass filter to remove residual DC offsets.

FEATURES
• SNR 97dB (‘A’ weighted @ 3.3V, 48kHz, normal power
   mode)
• THD –84dB (at –1dB, 3.3V, normal power mode)
• Complete Stereo / Mono Microphone Interface
   - Programmable microphone preamp
   - Automatic Level Control
   - Low-noise microphone bias voltage
• Configurable Power / Performance
• Low Power Mode
   - 8.5mW at AVDD = 1.8V (stereo, mic preamps off)
   - 20mW at AVDD = 3.3V (stereo, mic preamps off)
• Low Supply Voltages
   - Analogue 1.8V to 3.6V
   - Digital core: 1.42V to 3.6V
   - Digital I/O: 1.8V to 3.6V
• 256fs / 384fs or USB master clock rates: 12MHz, 24MHz
• Audio sample rates: 16, 22.05, 24, 32, 44.1, 48, 88.2, 96kHz
   generated internally from master clock
• 32-pin QFN package, 5 x 5 x 0.9mm

APPLICATIONS
• Memory Audio / Voice Recorders
• Minidisc Recorders
• Portable Digital Music Systems