W91082N

The W91082N is a Si-gate CMOS IC that provides DTMF signals. It can be programmed by a C to generate 16 dual tones and 8 single tones fron the DTMF pin. W91082N also provides a serial mode interface for various applications such as cordless, KTS, PBX and caller ID system. Besides, it is available in 8-pin plastic DIP package.

Features of W91082N are: (1)uses 3.579545 MHz crystal or ceramic resonator; (2)serial mode interface with C.

The absolute maximum ratings and electrical characteristics of W91082N can be summarized as follows: (1)DC supply voltage: -0.3 V to 7.0 V; (2)power dissipation: 120 mW; (3)storage temperature: -55 to 125 ; (4)operating voltage: 2.0 V to 5.5 V; (5)operating current: 0.3 mA typ and 1.0 mA max; (6)tone output voltage: 150 mVrms typ and 170 mVrms max; (7)DTMF distortion: -30 dB typ and -23 dB max; (8)DTMF output sink current: 0.2 mA min.