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SM8223B - NIPPON PRECISION CIRCUITS INC. FSK Decoder and DTMF Receiver IC

Description

I Tip input.

I Ring input.

Features

  • a power-down function for low power dissipation operation. 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.

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Datasheet preview – SM8223B

Datasheet Details

Part number SM8223B
Manufacturer Nippon Precision Circuits Inc
File Size 133.12 KB
Description NIPPON PRECISION CIRCUITS INC. FSK Decoder and DTMF Receiver IC
Datasheet download datasheet SM8223B Datasheet
Additional preview pages of the SM8223B datasheet.

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Full PDF Text Transcription

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preliminary NIPPON PRECISION CIRCUITS INC. SM8223A/B FSK Decoder and DTMF Receiver IC OVERVIEW The SM8223A/B 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 operation. 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.
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