m-984-02 Clare, Inc., m-984-02 Datasheet

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m-984-02

Manufacturer Part Number
m-984-02
Description
Special Information Tone Detector
Manufacturer
Clare, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
m-984-02P
Manufacturer:
TI
Quantity:
20 726
DS-M984-02-R3
Features
Applications
Pin Diagram
Block Diagram
Detects single-frequency tones used for error
indication and call progress in telephone systems
Provides detection windows for:
400/425 Hz (Call Progress)
950 Hz (Special and error indication)
1400 Hz (Special and error indication)
1800 Hz (Special and error indication)
Separate tri-state outputs for each tone window
Inexpensive 3.58 MHz crystal time base
Auxiliary 3.58 MHz clock output
14-pin DIP package and 16-pin SOIC package
Single supply 3 to 5 volt (low power CMOS)
Wide dynamic range (30 dBm)
Automatic dialers
Modems
Telecom test equipment
Telephone traffic measurement,
Service evaluation
Billing equipment
www.clare.com
Ordering Information
Description
The M-984-02 Special Information Tone Detector is a
monolithic integrated circuit designed to provide reli-
able detection of many common telephone network
status signals. In particular, it detects the signals
known as Special Information Tones (SITs) or error
tones as defined by the CCITT, and single tones often
used as dial tone, audible ringing, and other general
progress indications. The M-984-02 uses CMOS
switched capacitor filters and a crystal time base to
achieve the high stability and accuracy specified. Each
tone detection window has an associated output pin,
which can be placed in a high impedance state for use
with time-share microcomputer bus applications.
In comparison with the earlier M-984, the M-984-02
has wider acceptance bands for SIT tones to facilitate
reception of tape-loop tones, lower power consump-
tion at 5V operation, 3V operation, superior tempera-
ture performance, lower cost, and is available in DIP,
SOIC, and SOIC tape and reel versions.
M-984-02P
M-984-02S
M-984-02T
Part #
Special Information Tone Detector
Description
14-pin plastic DIP
16-pin plastic, SOIC
16-pin SOIC, Tape and Reel
M-984-02
1

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m-984-02 Summary of contents

Page 1

... Pin Diagram Block Diagram DS-M984-02-R3 Special Information Tone Detector Description The M-984-02 Special Information Tone Detector is a monolithic integrated circuit designed to provide reli- able detection of many common telephone network status signals. In particular, it detects the signals known as Special Information Tones (SITs) or error ...

Page 2

... M-984-02 Absolute Maximum Ratings DC Supply Voltage Input Voltage on SIGIN V SS Input Voltage on Any Pin V SS (except SIGIN) Storage Temperature Range Operating Temperature Range Lead Soldering Temperature 260°C for 5 seconds Note: Exceeding these ratings may permanently damage the device. Specifications Parameter ...

Page 3

... OE The tri-state control pin. OE places the DET pins in the active mode when at logic “1”. When at logic “0,” OE causes the DET outputs to appear as high impedance. Should be tied to logic “1” when the M-984-02 is not used in a time-shared bus application. D1800 D1400 The detect outputs associated with each window ...

Page 4

... M-984-02 Typical Application Detector Frequency Windows Detector Low Reject D400 363 D950 835 D1400 1275 D1800 1656 Timing Diagram Tri-State Timing 4 Low Accept High Accept 392 459 885 1016 1328 1472 1722 1854 www.clare.com High Reject 493 1070 1527 1924 Rev. 3 ...

Page 5

... C .008 D .735 E .300 E1 .240 e .100 BSC ec 0° L .115 Inches Min A .093 A1 .004 b .013 D .398 E .291 e .050 BSC H .394 L .016 www.clare.com M-984-02 Tolerances Metric (mm) Max Min Max .210 - 5.33 - .38 - .022 .36 .56 .070 1.1 1.8 .014 .20 .36 .775 18.7 19.7 .325 7.6 8.3 .280 6.1 7.1 2.54 BSC 15° 0° 15° ...

Page 6

... Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. Specification: DS-M-984-02-R3 ©Copyright 2001, Clare, Inc. All rights reserved. Printed in USA. 7/17/01 ...

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