WM8974GEFL/V
MONO CODEC WITH SPEAKER DRIVER
**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**
•- .
- *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
•- .
- *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
