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 cir-
cuit, a ring detect circuit and a carrier detect circuit for eas-
ier 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
PDWN
GND
1
8
VDD
DOUT
CDET
SM 82 2 1 P
8221
4
5
CLKIN
4
5
CLKIN
NIPPON PRECISION CIRCUITS-1
NPC [ NIPPON PRECISION CIRCUITS INC ]
