DESCRIPTION

The WM8750L is a low power, high quality stereo codec designed for portable digital audio applications. The device integrates complete interfaces to stereo or mono microphones and a stereo headphone. External component requirements are drastically reduced as no separate

microphone or headphone amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser, 3-D sound enhancement and automatic level control for the microphone or line input.

FEATURES

•  DAC SNR 98dB (‘A’ weighted), THD -95B at 48kHz, 3.3V

•  ADC SNR 95dB (‘A’ weighted), THD -90dB at 48kHz, 3.3V

•  Complete Stereo / Mono Microphone Interface

-  Programmable ALC / Noise Gate

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

•  On-chip Headphone Driver

-  >40mW output power on 16Ω/ 3.3V

-  THD –80dB at 20mW, SNR 90dB with 16Ωload

-  No DC blocking capacitors required (capless mode)

•  Separately mixed mono output

•  Digital Graphic Equaliser

•  Low Power

-  7mW stereo 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

•  MP3 Player / Recorder

•  AAC/WMA/Multi-Format Player / Recorder

•  Minidisc Player / Recorder

•  Portable Digital Music Systems