SC9256 PLL FOR DIGITAL TUNING SYSTEM

  
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The SC9270C/ SC9270D is a complete DTMF receiver integrating both the bandsplit Filter and digital decoder functions. The Filter section uses switched capacitor techniques for high- and low-group Filters and dial-tone rejection. Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tone-pairs into a 4-bit code. E
SC9256 PLL FOR DIGITAL TUNING SYSTEM - schematic

xternal component count is minimized by on-chip provision of a differential input Amplifier clock-oscillator and latched 3-state bus Interface By Silan



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