Details, datasheet, quote on part number: MX663
PartMX663
CategoryCommunication => Telephony => Tone Decoder
DescriptionCall Progress Decoder
CompanyConsumer Microcircuits Limited
DatasheetDownload MX663 datasheet
Quote
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Features, Applications

Worldwide Call Progress Tone Decoding: Single and Dual Tones Fax and Modem Answer/Originate Tones SIT (Special Information Tones) Fast `US Busy' Tone Detector Adjustable Detection Threshold Voice Detector Low Power 3.3V/5.0V Operation

Applications

Call Progress Monitoring Automatic Call Placement Machine Dialing Fax Tone Detection for Line Switching

RINGING CURRENT GENERATOR/ DETECTOR AND LINE REVERSAL DETECTOR

The MX663 decodes the standard audible tone signals provided by telecom systems worldwide to indicate Dial, Ringing, Busy, Unobtainable and other stages of a call attempt. It provides the key features needed for intelligent, full-function, call progress monitoring by applications involving machine dialing or automatic call placement. The MX663 also incorporates the following features: Single and dual tone decoding for better cross-system Call Progress monitoring. "US Busy" tone detector, saving time needed for "cadence verification" under Busy and Unobtainable conditions. This incorporates a separate 620Hz detector for improved response. A detector to indicate speech and non-call progress signals; this reduces voice falsing of call progress tones and adds Voice-Answer detection as a "connected" prompt. A fax and modem tone decoder. A separate, adjustable threshold, signal-level detector which reduces noise falsing. The MX663 uses digital signal processing techniques to provide these advantages. is a low cost, low power product with superior performance. The MX663 may be used with to 5.5 volt supply and is available in the following packages: 16-pin SOIC or 16-pin PDIP (MX663P).

All trademarks and service marks are held by their respective companies.

1. Block Diagram................................................................................................................ 3 2. Signal List....................................................................................................................... 4 3. External Components.................................................................................................... 5 4. General Description....................................................................................................... 6

4.2 4.3 Overall Function Description............................................................................................... 6 Glossary.............................................................................................................................. 6 Block Diagram Description (Reference Figure 1)................................................................ 6

SIGIN...................................................................................................................................... 6 Call Progress Detector: Signal Analyzer................................................................................ 7 620Hz Detector...................................................................................................................... 7 Control and Output Logic...................................................................................................... 7 Level Detector and OPAMP................................................................................................... 7 Xtal/Clock Oscillator............................................................................................................... 7 Decode Output Truth Table.................................................................................................... 8

5.2 5.3 General................................................................................................................................ 9 Signal Category Reference................................................................................................. 9 Typical Response.............................................................................................................. 10

6.1.2 6.1.3 Absolute Maximum Ratings.................................................................................................. 11 Operating Limits................................................................................................................... 11 Operating Characteristics..................................................................................................... 12

MX COM, Inc. reserves the right to change specifications at any time and without notice.


 

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