DESCRIPTION

The WM8955L is a low power, high qualitystereo DAC with integrated headphone and loudspeaker amplifiers, designed to reduce external component requirements in portable digital audio applications.

FEATURES

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

• 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

• Stereo and Mono Line-in mix into DAC output

• SeparatelyMixed Stereo and Mono Outputs

• Digital Tone Control and Bass Boost

• Low Power

  ° Down to 7mW for stereo playback (1.8V / 1.5V supplies)

  ° 10µW StandbyMode

• Low SupplyVoltages

  ° Analogue 1.8V to 3.6V

  ° Digital core: 1.42V to 3.6V

  ° Digital I/O: 1.42V to 3.6V

• Master clocks supported: GSM, CDMA, PDC, USB or standard audio clocks

• Audio sample rates supported: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96kHz

• 32-pin QFN package, 5x5x0.9mm size, 0.5mm lead pitch

APPLICATIONS

• Smartphone / Multimedia Phone

• Digital Audio Player