LC73861

Ordering number: EN4431A CMOS LSI LC73861, LC73862 DTMF Receiver LSI Overview The LC73861 and LC73862 are DTMF signal detector receiver that incorporates all the necessary filters for telephone answering machines. Package Dimensions unit : mm 3001B-DIP8 [LC73861, LC73862] Features . 16-DTMF tone signal decoder . DTMF receiver with all necessary filters built-in . Dial tone filter . High-group bandpass filter . Low-group bandpass filter . Extended range . Serial datadynamic output . Microcontroller guard-time compatible . 4.5 to 5.5 V operating supply voltage range Specifications Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V Parameter Maximum supply voltage Maximum input voltage Maximum input current Maximum output voltage Allowable power dissipation Operating temperature Storage temperature Symbol VDD max VIN max IIN max VOUT max Pd max Topr Tstg Ta % 85°C Conditions Ratings SANYO : DIP8 Unit V V mA V mW °C °C –0.3 to +6.0 –0.3 to VDD +0.3 –10 to +10 –0.3 to VDD +0.3 500 –40 to +85 –50 to +125 Allowable Operating Conditions at Ta = –40°C to +85°C, VSS = 0 V Parameter Operating supply voltage High-level input voltage Low-level input voltage Symbol VDD VIH VIL Conditions ACK pin ACK pin min 4.5 0.7VDD typ max 5.5 0.3VDD Unit V V V DC Electrical Characteristics at Ta = 25°C ± 2°C, VDD = 5 V, VSS = 0 V Parameter Operating supply current High-level output current Low-level output current Input impedance Symbol IDD(op) IOH IOL Zin Conditions VOUT = 4.6 V, SD and EST ...