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WM8986GECO/V Datasheet(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8986GECO/V Datasheet(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 87 page  w WM8986 Multimedia DAC 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, February 2007, Rev 3.1 Copyright ©2007 Wolfson Microelectronics plc DESCRIPTION The WM8986 is a low power, high quality, feature-rich stereo DAC 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 and a digital playback limiter. Highly flexible mixers enable many new application features, with the option to playback any combination of voice, line inputs and digital audio such as FM Radio or MP3. The WM8986 digital audio interface can operate in master or slave mode, while an integrated PLL provides flexible clocking schemes. The WM8986 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 DAC: • DAC SNR 98dB, THD -86dB (‘A’ weighted @ 48kHz) • Headphone driver with ‘capless’ option - 40mW/channel output power into 16 Ω / 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 Other Features: • Enhanced 3-D function for improved stereo separation • Digital playback limiter • 5-band Equaliser • 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 • 4x4mm 28-lead COL QFN package APPLICATIONS • Portable audio player / FM radio • Multimedia Mobile Handsets |
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