SM8224B
OVERVIEW
The SM8224B is a receiver and decoder that supports the Bellcore TR-NWT-000030 and SR-TSV-002476 standards calling number identification (caller ID) and call waiting dual-tone signals. It has separate caller ID signal and call waiting signal inputs, which allows the gain for each input to be adjusted independently. It is fabricated in CMOS and features a power-down function, realizing low power dissipation operation.
FEATURES s
PINOUT
(Top view) s s s s s s s s
TR-NWT-000030 and SR-TSV-002476 standards (Bellcore) Call waiting FSK decoder High input sensitivity Independent input gain adjustment for caller ID signal and call waiting signal inputs Power-down mode Crystal oscillator circuit built-in Single supply operation:4.5 to 5.5V Molybdenum-gate CMOS process
AGND TIP RING TRQ GND OSCIN OSCOUT MODE TEST DOUT
DT1 DT2 DTQ S0 S1 VDD CDET CR DTDET
APPLICATIONS s s s s s
Telephones, fax machines and modems that support pre- and mid-conversation...
