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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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WM8510GEDS/RV 데이터시트(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8510GEDS/RV 데이터시트(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 56 page  w WM8510 Mono CODEC with Speaker Driver WOLFSON MICROELECTRONICS plc w :: www.wolfsonmicro.com Product Preview December 2004, Rev 1.2 Copyright 2004 Wolfson Microelectronics plc 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. Advanced Sigma Delta Converters are used along with digital decimation and interpolation filters to give high quality audio at sample rates from 8 to 48ks/s. Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’, plus an advanced mixed signal ALC function with noise gate is provided. An on-chip PLL is provided to generate the required Master Clock from an external reference clock. The PLL clock can also be output if required elsewhere in the system. The WM8510 operates at supply voltages from 2.5 to 3.6V, although the digital core can operate at voltages down to 1.62V to save power. The speaker and mono outputs use a separate supply of up to 5V which enables increased output power if required. Different sections of the chip can also be powered down under software control by way of the selectable two or three wire control interface. WM8510 is supplied in a convenient 28-pin SSOP package, offering high levels of functionality in easy to use package. BLOCK DIAGRAM 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 – 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 16 Ω / 3.3V SPKVDD - BTL speaker drive 0.8W into 8 Ω / 5V SPKVDD • Earpiece Line output • Multiple analog inputs, plus analog bypass path (0 or -10dB) • Mic Preamps: • Two Microphone Interfaces - One pseudo-differential input - One single ended input - Programmable preamp gain - Psuedo differential inputs with common mode rejection - 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 core: 1.62V to 3.6V) - power consumption <10mA all-on 48ks/s mode • 28 pin SSOP package APPLICATIONS • VoIP Telephones • Digital Telephones • Conference Speaker-phone • Mobile Telephone Hands-free Kits • General Purpose low power audio CODEC |
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