CM8870

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870

CMOS Integrated DTMF Receiver

Features ?FullDTMFreceiver ?Lessthan35mWpowerconsumption ?Industrialtemperaturerange ?Usesquartzcrystalorceramicresonators ?Adjustableacquisitionandreleasetimes ?18-pinDIP,18-pinDIPEIAJ,18-pinSOIC,20-pin PLCC ?CM8870C —Powerdownmode —Inhibitmode —Buf

CM8870

CMOS Integrated DTMF Receiver; ? Full DTMF receiver\n? Less than 35mW power consumption\n? Industrial temperature range\n? Uses quartz crystal or ceramic resonators\n? Adjustable acquisition and release times\n? 18-pin DIP, 18-pin DIP EIAJ, 18-pin SOIC, 20-pin PLCC\n? CM8870C\n?? — Power down mode\n?? — Inhibit mode\n?? — Buffered OSC3 output (PLCC package only)\n? CM8870C is fully compatible with CM8870 for 18-pin devices by grounding pins 5 and 6Applications\n? PABX\n? Central office\n? Mobile radio\n? Remote control\n? Remote data entry\n? Call limiting\n? Telephone answering systems\n? Paging systems?;

Product Description\nThe CAMD CM8870/70C provides full DTMF receiver capability by integrating both the bandsplit filter and digital decoder functions into a single 18-pin DIP, SOIC, or 20-pin PLCC package. The CM8870/70C is manufactured using state-of-the-art CMOS process technology for low power consumption (35mW, max.) and precise data handling. The filter section uses a switched capacitor technique for both high and low group filters and dial tone rejection. The CM8870/70C decoder uses digital counting techniques for the detection and decoding of all 16 DTMF tone pairs into a 4-bit code. This DTMF receiver minimizes external component count by providing an on-chip differential input amplifier, clock generator, and a latched three-state interface bus. The on-chip clock generator requires only a low cost TV crystal or ceramic resonator as an external component.

ETC

CM8870/70C

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM887070C

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870-70C

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870CF

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870CFI

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870CP

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow

CM8870CPE

CMOS Integrated DTMF Receiver

ProductDescription TheCAMDCM8870/70CprovidesfullDTMFreceivercapabilitybyintegratingboththebandsplitfilteranddigitaldecoderfunctionsintoasingle18-pinDIP,SOIC,or20-pinPLCCpackage.TheCM8870/70Cismanufacturedusingstate-of-the-artCMOSprocesstechnologyforlowpow