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SM8223A Arkusz danych(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM8223A Arkusz danych(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 15 page SM8223A NIPPON PRECISION CIRCUITS—1 NIPPON PRECISION CIRCUITS INC. FSK Decoder and DTMF Receiver IC OVERVIEW The SM8223A is a FSK (Frequency shift keying) decoder and DTMF (Dual tone multi-frequency) receiver IC. It is fabricated using a CMOS process and features a power-down function for low power dissipation opera- tion. The FSK decoder and DTMF receiver have the same performance characteristics as dedicated ICs that perform the same functions, with the added benefit of an FSK decoder/DTMF receiver auto-select function1 using the telephone tip/ring input signal. It also features a ring (call signal) signal detection circuit, making for easy construction of low power dissipation, high-performance analog telephone-related applications. FEATURES s Both FSK signal caller-ID information services and DTMF signal caller-ID information services supported s FSK decoder/DTMF receiver auto-select function s Ring (call signal) signal detection circuit built-in s Serial I/O s Input gain adjustment circuit built-in s Power-down mode s Single supply operation: 3.0V ± 10% s 3.579545MHz external crystal oscillator fre- quency s Molybdenum-gate CMOS process APPLICATIONS s Telephones, fax machines and modems that sup- port caller-ID information services s Adapters for caller-ID information service func- tions s Telephones, fax machines and modems that sup- port remote operation functions ORDERING INFORMATION PINOUT (Top view) PINOUT (Unit: µm) 1. Auto-select function operates if the FSK signal conforms to the Bellcore GR-30-CORE standard. D e vice P a ck ag e SM8223A 16-pin DIP CF8223A Chip P ad size : 90 µm × 90µm 1 9 16 8 TIP RING GS AGND RDIN RDRC VDD DOUT FSK/DTMF IC OSCIN DV RDET PDWN OSCOUT GND GS (0, 0) (2810, 3160) DOUT RDET AGND RDIN RDRC PDWN GND OSCOUT FSK/DTMF IC OSCIN RING TIP VDD DV |
Podobny numer części - SM8223A |
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Podobny opis - SM8223A |
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