SM8221 Datasheet (Nippon Precision Circuits Inc) - Calling Number Identification Receiver

SM8221, Calling Number Identification Receiver

Number SM8220 1 2 3 4 5 6 7 SM8221 1 2 3 TIP RING AGND RDIN RDRC RDET PDWN i i o si od o si Tip Input: This pin is connected to the tip side of the twisted pair telephone wires.

This pin must be DC isolated from the phone line.

Ring Input: This pin is connected to the ring side of the twisted pair

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 impleme

SM8221 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 cur