Àû²©¡¤(¼¯ÍÅ)ÓÐÏÞ¹«Ë¾¹ÙÍø

DESCRIPTION

The WM8510 is a low power, high quality mono codec designed for Voice over Internet Protocol (VoIP) and Digital Telephones. The device integrates support for one pseudo-differential and one single ended input (Handset Mic and Speaker Mic) and includes drivers for speakers or headset, and mono line output, making it ideal for Telephone designs. External component requirements are reduced as no separate microphone or

earpiece amplifiers are required.

FEATURES

? Mono Codec:

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

? DAC SNR 93dB, THD -84dB (¡®A¡¯-weighted @ 8 ¨C 48kHz)

? ADC SNR 90dB, THD -80dB (¡®A¡¯-weighted @ 8 ¨C 48kHz)

? On-chip Headphone/Speaker Driver with ¡®cap-less¡¯ connect

- 40mW output power into 16? / 3.3V SPKVDD

- BTL speaker drive 0.8W into 8? / 5V SPKVDD

? Earpiece Line output

? Multiple analog inputs, plus analog bypass path (0 or -10dB)

? Mic Preamps:

? Two Microphone Interfaces

- One pseudo-differential input with common mode rejection

- One single ended input

- Programmable preamp gain

- Programmable ALC / Noise Gate in ADC path

? Low-noise bias supplied for microphone

Other Features

? 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 supplies: 1.71V to 3.6V)

- power consumption <10mW all-on 48kHz mode

? 28 lead SSOP package

APPLICATIONS

? VoIP Telephones

? Digital Telephones

? Conference Speaker-phone

? Mobile Telephone Hands-free Kits

? General Purpose low power audio CODEC