sm8220 Nippon Precision Circuits Inc, (NPC), sm8220 Datasheet

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sm8220

Manufacturer Part Number
sm8220
Description
Calling Number Identification Receiver Ic
Manufacturer
Nippon Precision Circuits Inc, (NPC)
Datasheet

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OVERVIEW
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
FEATURES
APPLICATIONS
PINOUT
NIPPON PRECISION CIRCUITS INC.
The SM8220/SM8221 Calling Number Identification
•Compatible with Bellcore GR-30-CORE
•Integrated band pass filter
•FSK demodulator
•High input sensitivity: −48 dBm typical
•Ring detect output
•Carrier Detect Output (SM8220)
•Power down mode: 1µA power down current
•Calling Number Delivery service
•Adjunct Boxes
•Telephone Answering Machines
Bell 202 and ITU-T V.23
(Top View)
PDWN
PDWN
AGND
RDRC
RDET
RDIN
RING
RING
GND
GND
TIP
TIP
SM8220S (16pin SOP)
SM8221S (8pin SOP)
1
1
4
8
16
8
5
9
DISCONTINUED
VDD
FOUT
DMIN
DOUT
NC
CDET
OSCOUT
OSCIN
/CLKIN
VDD
DOUT
CDET
CLKIN
PRODUCT
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.
•Uses 3.579545 MHz crystal (SM8220) or external
•Power supply voltage: 3V to 5.5V
•Low power consumption
•Molybdenum-gate CMOS process
•Package
•Feature Phones
•Fax Machines
•Computer Interface Products
clock source
SM8220: 16 pin SOP, 16 pin DIP
SM8221: 8 pin SOP, 8 pin DIP
PDWN
PDWN
AGND
RDRC
RDET
RING
RDIN
RING
GND
GND
TIP
TIP
SM8220P (16pin DIP)
Calling Number Identification Receiver IC
SM8221P (8pin DIP)
1
1
4
8
NIPPON PRECISION CIRCUITS-1
16
8
5
9
SM8220/SM8221
VDD
FOUT
DMIN
DOUT
NC
CDET
OSCOUT
OSCIN
/CLKIN
VDD
DOUT
CDET
CLKIN

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sm8220 Summary of contents

Page 1

... MHz crystal (SM8220) or external clock source •Power supply voltage 5.5V •Low power consumption •Molybdenum-gate CMOS process •Package SM8220: 16 pin SOP, 16 pin DIP SM8221: 8 pin SOP, 8 pin DIP •Feature Phones •Fax Machines •Computer Interface Products 16 VDD FOUT ...

Page 2

... PACKAGE DIMENSIONS SM8220S (16 pin SOP) 9.89 0.09 1.27 0.10 0.41 0.05 0.25 M SM8221S (8 pin SOP) 4.80 to 4.98 0.36 to 0.46 1.27 BLOCK DIAGRAM TIP RING OSCIN* /CLKIN OSCOUT* PDWN RDIN* DISCONTINUED SM8220/SM8221 PRODUCT (Unit: mm) SM8220P (16 pin DIP 0.84 0.43 2.54 2.54 SM8221P (8 pin DIP) 8. 0.41 to 1.27 2.54 2.54 FOUT* DMIN* Band Pass Filter Demodulator (SM8221) Power Down Control ...

Page 3

... FOUT 16 8 VDD DISCONTINUED SM8220/SM8221 PRODUCT i 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. i Ring Input: This pin is connected to the ring side of the twisted pair telephone wires. ...

Page 4

... OH Input Leakage Current I IN Output Leakage Current I OFF Input DC Resistance R IN *1: OSCIN/CLKIN= 0V, PDWN= 0V, RDIN= 0V, RDRC= 0V, Other Input Pins= open *2: OSCIN/CLKIN= 0V, PDWN= V DISCONTINUED SM8220/SM8221 PRODUCT Condition = 3.579545 MHz − ˚C unless otherwise noted) CLK Condition *1 *2 OSCIN/CLKIN pin V = 0.8V OSCOUT DD OSCIN/CLKIN pin ...

Page 5

... SWITCHING CHARACTERISTICS (V DD Parameter Power Down Low to Oscillator Start Up Power Down Low to FSK Data Detect Carrier Detect Acquisition Time End of Data to Carrier Detect High DISCONTINUED SM8220/SM8221 PRODUCT Symbol Condition TIP, RING pin 60Hz 1200 Hz 2200Hz 4000Hz ≥ ...

Page 6

... FUNCTIONAL DESCRIPTION The SM8220/SM8221 Calling Number Identification Receiver device compatible with the Bellcore GR- 30-CORE for transmitting asynchronous voice-band data to Customer Premises Equipment (CPE) from a serving Stored Program Controlled Switching System (SPCS Central Office (CO). This data transmission technique is The data signaling interface should conform to Bell 202 and ITU-T V.23 specification, which is: ...

Page 7

... From RING (Note) When the Ring Detect feature of SM8220 is not used, always connect RDIN and RDRC pins to the system ground level. This will cut excess current drain from VDD under the normal and power down mode of operation. This diagram example is desingned to adapt to the specifications of United States. ...

Page 8

... Customers shall not export, directly or indirect- ly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. DISCONTINUED SM8220/SM8221 PRODUCT reserves the right to make changes to the products described in this data sheet in order to NIPPON PRECISION CIRCUITS INC. ...

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