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M-982-02 Datasheet, PDF (1/7 Pages) Clare, Inc. – Precise Call Progress Tone Detector | |||
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Features
⢠Precise detection of call progress tones
⢠Linear (analog) input
⢠Digital (CMOS compatible), tri-state outputs
⢠22-pin DIP and 20-pin SOIC
⢠Single supply 3 to 5 volt (low power CMOS)
⢠Inexpensive 3.58 MHz crystal time base
⢠Wide dynamic range (30 dB)
⢠Lower power consumption (power-down mode)
⢠425 Hz detection
Applications
⢠Automatic dialers
⢠Dialing modems
⢠Traffic
⢠Measurement equipment
⢠Test equipment
⢠Service evaluation
⢠Billing systems
Pin Diagram
M-982-02
Precise Call Progress Tone Detector
Description
The M-982-02 is an integrated circuit precise tone
detector for special-purpose use in automatic following
of switched telephone calls. The circuit uses low-
power CMOS techniques to provide the complete fil-
tering and control required for this function. The basic
timing of the M-982-02 is designed to permit operation
with almost any progress tone system.The use of inte-
grated circuit techniques allows the M-982-02 to pack
the five filters for call progress following into a single
22-pin DIP or 20-pin SOIC. A 3.58 MHz crystal-con-
trolled time base guarantees accuracy and repeatabil-
ity.
The M-982-02 is an enhanced drop-in replacement for
the M-982-01. It has a wider operating voltage range
(down to 3V). It has lower power consumption under
normal operating conditions. In addition, a power-
down (PD) feature is provided to further reduce power
consumption when inactive. It includes a 425 Hz
detector to support common international call progress
requirement.
Ordering Information
Part #
Description
M-982-02P
M-982-02S
M-982-02T
22-pin plastic DIP
20-pin plastic SOIC
20-pin plastic SOIC,Tape and Reel
Block Diagram
DS-M982-02-R4
www.clare.com
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