WM8974GEFL/RV

IC, AUDIO CODEC, 24Bit, 48kHz, QFN-24

**DESCRIPTION**

The WM8974 is a low power, high quality mono codec designed for portable applications such as Digital Still Camera or Digital Voice Recorder. The device integrates support for a differential or single ended mic, and includes drivers for speakers or headphone, and

mono line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required.

**FEATURES**

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*Mono Codec:**

• Audio sample rates:8, 11.025, 16, 22.05, 24, 32, 44.1, 48kHz

• DAC SNR 98dB, THD -84dB ‘A’-weighted @ 8 – 48ks/s

• ADC SNR 90dB, THD -80dB ‘A’-weighted @ 8 – 48ks/s

• On-chip Headphone/Speaker Driver with ‘cap-less’ connect

\- 40mW output power into 16Ω / 3.3V SPKRVDD

\- BTL speaker drive 0.9W into 8Ω / 5V SPKRVDD

• Additional MONO Line output

• Multiple analog or ‘Aux’ inputs, plus analog bypass path

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*Mic Preamps:**

• Differential or single end Microphone Interface

\- Programmable preamp gain

\- Psuedo differential inputs with common mode rejection

\- Programmable ALC / Noise Gate in ADC path

• Low-noise bias supplied for electret microphones

**OTHER FEATURES**

• 5 band EQ record or playback path

• Digital Playback Limiter

• Programmable ADC High Pass Filter wind noise reduction

• Programmable ADC Notch Filter

• On-chip PLL

• Low power, low voltage

\- 2.5V to 3.6V digital core: 1.62V to 3.6V

\- power consumption <10mA all-on 48ks/s mode

• 4x4x0.9mm 24 pin QFN package

**APPLICATIONS**

• Digital Still Camera Audio Codec

• General Purpose low power audio CODEC