SM8222A Datasheet | Nippon Precision Circuits Inc

FEATURES s s s s s s s Conforms to TR-NWT-000030 and SR-TSV002476 (Bellcore) standards Call waiting FSK demodulator Ring signal detect circuit built-in High input sensitivity Input gain adjust circuit built-in Power-down mode APPLICATIONS s s Telephones that display dialer number before and during conversation Adapters to display dialer number before and during conversation ORDERING INFORMATION D e vice SM8222AS SM8222AP SM8222BS SM8222BP lim s s s P ackag e 24-pin SOP 24-pin DIP pre 24-pin DIP 24-pin SOP ina ry s s s s s s s OVERVIEW telephone number display standards. It is implemented in CMOS and incorporates a power-down function for low power operation. Crystal oscillator circuit built-in Single supply operation Microcontroller I/O interface Molybdenum-gate CMOS process 24-pin SOP and 24-pin DIP packages SM8222A : 2.7 to 3.3V operation SM8222B : 4.5 to 5.5V operation Answering machines Facsimile machines puter peripheral devices PINOUT (Top View) TIP RING GS AGND CAP RDIN RDRC RDET MODE OSCIN VDD STGT EST STD INT CDET DR DOUT DCLK FSKEN PDWN OSCOUT GND 12 13 NIPPON PRECISION CIRCUITS- 1 SM8222A/B PACKAGE DIMENSIONS (Unit: mm) 24-pin SOP 24-pin DIP - 0.20 0.05min 2.80max 1.27 0.45 0.10 0.10 0.13 M 0.50 0.20 3.00min 0.45 0.08 BLOCK DIAGRAM lim Amplifier Filter Carrier Detector Filter (2130Hz) Filter Bias Generator Filter (2750Hz) Oscillator OSCIN OSCOUT RDIN RDRC RDET FSKEN MODE 0.51min...