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WM8953ECS/RV Scheda tecnica(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8953ECS/RV Scheda tecnica(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 100 page  w WM8953 Low Power Stereo ADC with PLL and TDM Interface WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/ Production Data, January 2009, Rev 4.0 Copyright ©2009 Wolfson Microelectronics plc DESCRIPTION The WM8953 is a low power high performance stereo ADC designed for mobile handsets and other portable devices. Four single-ended or differential input connections are provided, with up to 60dB of analogue gain in each input path. Stereo 24- bit sigma-delta ADCs provide hi-fi quality audio recording of microphones or line input. A programmable high pass filter is available in the ADC path for removing DC offsets and suppressing wind and other low frequency noise. A low noise microphone bias with programmable current detect and short-circuit detect is provided. A flexible digital audio interface supports most commonly-used clocking schemes. The audio interface supports TDM and tristate outputs allow multiple devices to share the same interface. An integrated low power PLL provides support for most commonly-used audio sample rates. The WM8953 is supplied in very small and thin 42-ball WCSP package, ideal for portable systems. FEATURES • SNR 94dB (‘A’ weighted) • THD -82dB at 48kHz, 3.3V • Full stereo microphone / line input interface • Low noise MICBIAS • Low power consumption • Full analogue and digital volume control • PLL provides flexible clocking scheme • 2-wire, 3-wire or 4-wire control • Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48kHz • GPIO functions available • Digital supply: 1.71V – 3.6V • Analogue supply: 2.7V – 3.6V • W-CSP package (3.226 x 3.44 x 0.7mm, 0.5mm pitch) APPLICATIONS • Multimedia phones • General purpose low power audio ADC |
Codice articolo simile - WM8953ECS/RV |
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