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SM8224B Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM8224B Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 11 page SM8224B NIPPON PRECISION CIRCUITS—1 NIPPON PRECISION CIRCUITS INC. Dual-Tone Receiver IC 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 TR-NWT-000030 and SR-TSV-002476 standards (Bellcore) s Call waiting s FSK decoder s High input sensitivity s Independent input gain adjustment for caller ID signal and call waiting signal inputs s Power-down mode s Crystal oscillator circuit built-in s Single supply operation:4.5 to 5.5V s Molybdenum-gate CMOS process APPLICATIONS s Telephones, fax machines and modems that sup- port pre- and mid-conversation information ser- vices s Adapters for pre- and mid-conversation informa- tion service functions s Telephone answering machines s Facsimile machines s Computer peripheral equipment ORDERING INFORMATION PINOUT (Top view) D e vice P a ck ag e SM8224BM 20-pin SSOP SM8224BS 20-pin SOP 1 11 20 10 AGND TIP RING TRQ GND DT1 DT2 DTQ S0 S1 VDD CDET MODE OSCIN OSCOUT TEST CR DTDET STR DOUT |
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