SM8223B ic equivalent, nippon precision circuits inc. 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
s Both FSK signal caller-ID information services and DTMF signal caller-ID information services supported
s F.
Number 1 2 3 4 5 6 7
8 9 10 11 12 13
14 15 16
Name TIP RING GS
AGND RDIN RDRC RDET
PDW N GND OSCOUT OSCIN
IC FSK/DTMF
DOUT DV VDD
I/O Function
I Tip input. Connected to the telephone line through a protection circuit
I Ring input. Connected to t.
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