DTMF来电显示解码电路

I-CORE

中微爱芯

High performance USB DAC with Headphone Amplifier ADC, PLL, Jack Detect, Mic, and A/D Mixing

FEATURE Patented 32-bit HyperStream® II QUAD DAC™ Architecture +130dB SNR, +117dBA DNR, 2.0Vrms into 100k -112dB THD+N, 2.0Vrms into 100k -108dB THD+N, 1.0Vrms into 32 Analog PLL Versatile digital audio input port Customizable filter characteristics Integrated ADCs for analog/digital m

文件：290.37 Kbytes 页数：3 Pages

ESS

DTMF Receiver

Features Complete receiver in an 18-pin package Excellent performance CMOS, single 5 volt operation Minimum board area Central office quality Low power consumption Appilcations Telephone answer machine PABXs Central office Key system Remote control Remote data entry

文件：69.76 Kbytes 页数：1 Pages

ETCList of Unclassifed Manufacturers

未分类制造商

DTMF RECEIVER

General Description The HM 9270C/D 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 deco

文件：66 Kbytes 页数：10 Pages

EMC

义隆电子