DESCRIPTION

The WM8972L is a low power, high quality mono CODEC designed for portable digital audio applications.

The device integrates complete interfaces to mono microphones. External component requirements are drastically reduced as no separate microphone amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser and automatic level control for the microphone or line input.

FEATURES

? DAC SNR 98dB (‘A’ weighted), THD –84dB at 48kHz, 3.3V

? ADC SNR 95dB (‘A’ weighted), THD -82dB at 48kHz, 3.3V

? Complete Mono Microphone Interface

- Programmable ALC / Noise Gate

? On-chip 400mW BTL Speaker Driver (mono)

? Digital Graphic Equaliser

? Low Power

- 7mW mono playback (1.8V / 1.5V supplies)

- 14mW record & playback (1.8V / 1.5V supplies)

? 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: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96kHz generated internally from master clock

? 5x5x0.9mm QFN package

APPLICATIONS

? Digital Still Cameras

? Toys