SM8220

SM8220/SM8221 NIPPON PRECISION CIRCUITS INC. Calling Number Identification Receiver IC OVERVIEW The SM8220/SM8221 Calling Number Identification Receiver IC is a CMOS integrated circuit, which provides an interface to various calling information delivery services such as Calling Number Delivery (CND) and Calling Name Delivery (CNAM) compatible with the Bellcore GR-30-CORE. The device also contains a power down circuit, a ring detect circuit and a carrier detect circuit for easier system implementation. FEATURES Compatible with Bellcore GR-30-CORE Integrated band pass filter FSK demodulator Bell 202 and ITU-T V.23 High input sensitivity: −48 dBm typical Ring detect output Carrier Detect Output (SM8220) Power down mode: 1µA power down current Uses 3.579545 MHz crystal (SM8220) or external clock source Power supply voltage: 3V to 5.5V Low power consumption Molybdenum-gate CMOS process Package SM8220: 16 pin SOP, 16 pin DIP SM8221: 8 pin SOP, 8 pin DIP APPLICATIONS Calling Number Delivery service Adjunct Boxes Telephone Answering Machines Feature Phones Fax Machines Computer Interface Products PINOUT(Top View) SM8220S (16pin SOP) SM8220P (16pin DIP) TIP RING AGND RDIN RDRC RDET PDWN GND 1 16 VDD FOUT DMIN DOUT NC CDET OSCOUT OSCIN /CLKIN TIP RING AGND RDIN RDRC RDET PDWN GND 1 16 VDD FOUT DMIN DOUT NC CDET OSCOUT OSCIN /CLKIN SM 8220 S SM 82 20 P 8 9 8 9 SM8221S (8pin SOP) SM8221P (8pin DIP) TIP RING PDWN GND 1 8 VDD DOUT CDET TIP RING P...