LC73872

The LC73872 is designed as one kind of DTMF signal detection receiver IC for use in telephone answering machines. It includes the filters required for DTMF signal detection on chip.

Features of the LC73872 are:(1)detects all 16 DTMF signals;(2)includes on-chip all filters required in a DTMF receiver;(3)extended dynamic range;(4)serial data output;(5)supports microprocessor control guard time;(6)operating supply voltage range: 4.5 to 5.5 V;(7)supports a low power mode that allows current dissipation to be reduced;(8)serial output data can be read out multiple times.

The absolute maximum ratings of the LC73872 can be summarized as:(1)maximum supply voltage: -0.3 to +6.0 V;(2)maximum input voltage: -0.3 to VDD+0.3 V;(3)maximum input current: -10 to +10 mA;(4)maximum output voltage: -0.3 to VDD+0.3 V;(5)power dissipation: 120 mW;(6)operating temperature: -40 to +85 ;(7)storage temperature: -50 to +125 . If you want to know more information such as the electrical characteristics about the LC73872, please download the datasheet in www.seekic.com or www.chinaicmart.com.