IC ADC with Mono MIC Input
DESCRIPTION
The WM8950 is a low power, high quality mono ADC designed for portable applications such as Digital Still Camera, Digital Voice Recorder or games console accessories.
The device integrates support for a differential or single ended mic. External component requirements are reduced as no separate microphone amplifiers are required.
FEATURES
• Mono ADC:
• Audio sample rates:8, 11.025, 16, 22.05, 24, 32, 44.1, 48kHz
• SNR 95dB, THD -85dB ‘A’-weighted @ 8 – 48ks/s
• Multiple auxiliary analog inputs
• 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
• Programmable High Pass Filter wind noise reduction
• Fully Programmable IIR Filter notch filter
• On-chip PLL
• Low power, low voltage
- 2.5V to 3.6V digital: 1.71V to 3.6V
- power consumption TBD all-on 48ks/s mode
• 4x4x0.9mm 24 pin QFN package
APPLICATIONS
• Digital Still Camera
• General Purpose low power audio ADC
• Games console accessories
• Voice recorders