U.S. Busy-Detect Output
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Automatic Calling Products
XTAL/
CLOCK
XTAL / CLOCK
OSCILLATOR
XTAL
V
DD
V
SS
ENABLE
DETECT1
SIGIN
SLICER
SIGNAL
ANALYZER
CONTROL
LOGIC
DETECT2
The MX633 is a low cost, low power device that uses signal processing techniques to detect audible tone signals such as
Dial, Ringing, Busy and other conditions found when placing a call throughout the world鈥檚 telecom systems. Detection of
these call progress stages is essential to the proper operation of automatic calling products.
The MX633 adds new features to Call Progress monitoring. It detects and indicates the 鈥楿.S. Busy鈥?tones, reducing the
need to measure 鈥榯one cadence鈥?to identify 鈥楿.S. Busy鈥? It also detects and indicates voice and other signals from Call
Progress tones, reducing voice-falsing and adding voice-answer as a connection prompt.
The MX633 may be used with a 3.0V to a 5.5V supply and is available in the following package styles: 8-pin PDIP
(MX633P) and 16-pin SOIC (MX633DW).
漏 1997 MX鈥OM Inc.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
www.mxcom.com Tele: 800 638-5577 910 744-5050
All trademarks and service marks are held by their respective companies.
Fax: 910 744-5054
Doc. # 20480135.003