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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8985GEFL/R датащи(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8985GEFL/R датащи(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 118 page  w WM8985 Multimedia CODEC With Class D Headphone and Line Out WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/ Pre-Production, October 2006, Rev 3.4 Copyright ©2006 Wolfson Microelectronics plc DESCRIPTION The WM8985 is a low power, high quality, feature-rich stereo codec designed for portable multimedia applications that require low power consumption and high quality audio. The device integrates preamps for stereo differential mics, and includes class D and class AB drivers for headphone and differential or stereo line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required. Advanced DSP features include a 5-band equaliser, an ALC/limiter for the microphone or line input through the ADC and a digital playback limiter. Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’ and a programmable notch filter. Highly flexible mixers enable many new application features, with the option to record and playback any combination of voice, line inputs and digital audio such as FM Radio or MP3. The WM8985 digital audio interface can operate in master or slave mode, while an integrated PLL provides flexible clocking schemes. The WM8985 operates at analogue supply voltages from 2.5V to 3.3V, although the digital core can operate at voltages down to 1.71V to save power. Additional power management control enables individual sections of the chip to be powered down under software control. FEATURES Stereo Codec: • DAC SNR 98dB, THD -86dB (‘A’ weighted @ 48kHz) • ADC SNR 92.5dB, THD -75dB (‘A’ weighted @ 48kHz) • Headphone driver with ‘capless’ option • 40mW/channel output power into 16Ω / 3.3V AVDD2 • Class D headphone driver • Class AB headphone / line Driver • PSRR 70dB at 217Hz • Stereo, mono or differential line output Mic Preamps: • Stereo differential or mono microphone interfaces • Programmable preamp gain • Pseudo differential inputs with common mode rejection • Programmable ALC / Noise Gate in ADC path • Low-noise bias supplied for electret microphones Other Features: • Enhanced 3-D function for improved stereo separation • Digital playback limiter • 5-band Equaliser (record or playback) • Programmable ADC High Pass Filter (wind noise reduction) • Programmable ADC Notch Filter • Aux inputs for stereo analog input signals or ‘beep’ • PLL supporting various clocks between 8MHz-50MHz • Sample rates supported (kHz): 8, 11.025, 16, 12, 16, 22.05, 24, 32, 44.1, 48 • Low power, low voltage • 2.5V to 3.6V analogue supplies • 1.71V to 3.6V digital supplies • 5x5mm 32-lead QFN package APPLICATIONS • Portable audio player / FM radio • Multimedia Mobile Handsets |
Аналогичный номер детали - WM8985GEFL/R |
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Аналогичное описание - WM8985GEFL/R |
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