SM8223A ic equivalent, fsk decoder and dtmf receiver ic.
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 s.
FEATURES
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PINOUT
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Both FSK signal caller-ID information services and DTMF signal caller.
Number 1 2 3 4 5 6 7 Name TIP RING GS AG N D RDIN RDRC RDET I/O I I O O I I/O O Function Tip input. Connected to the telephone line through a protection circuit Ring input. Connected to the telephone line through a protection circuit Input-stage ampl.
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