CLARE M-980-02T, M-980-02S, M-980-02P Datasheet
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DS-M980-02-R3
M-980-02
3V/5V General Purpose Call Progress Tone Detector
1
Block Diagram
Pin Diagram
Ordering Information
Part # Description
M-980-02P 8-pin plastic DIP
M-980-02S 16-pin SOIC
M-980-02T 16-pin SOIC, Tape and Reel
Features
• Covers the 315 to 640 Hz range (common call
progress)
• Sensitivity to -38 dBm
• Dynamic range over 38 dB
• 40 ms minimum detect
• 8-pin DIP or 16-pin SOIC
• Single supply CMOS (low power)
• Supply range 2.8 to 5.5 VDC
• Inexpensive 3.58 MHz time base
• Low power consumption (<_15 mW at 3V)
Applications
• Automatic dialers
• Dialing modems
• Traffic measurement equipment
• Test equipment
• Service evaluation
• Billing systems
Description
The M-980-02 is an integrated circuit tone detector for
general purpose use in automatic following of switched
telephone calls. The circuit uses low-power CMOS
techniques to provide the complete filtering and control
required for this function. The basic timing of the M980-02 is designed to permit operation with almost any
progress tone system.
The use of integrated circuit techniques allows the
M-980-02 to pack the complete frequency and amplitude portion of call progress following into a single 8pin DIP or 16-pin SOIC. A 3.58 MHz crystal-controlled
time base guarantees accuracy and repeatability.
3V/5V operation increases customer flexibility,
improves reliability, and minimizes power consumption.
Pin Description
Pin Descriptions
SIGIN Signal input AC or DC coupled (see level limitations elsewhere).
DETECT Active output indicating signal detection. Activated by ENABLE.
ENABLE Enables DETECT output. Used to mask signal activity.
V
DD
Most positive power supply pin.
V
REF
Internally generated reference voltage. (VSS+ VDD) /2 volts.
V
SS
Most negative power supply pin.
XIN, XOUT Crystal attachment pins. XIN may be used as the input for an external 3.58 MHz clock.
Absolute Maximum Ratings
DC Supply Voltage (VDD- VSS) 6.0V
Voltage on SIGNAL IN(VDD+ 0.5V) to (VSS-12V)
Voltage on Any Pin Except SIGNAL IN (VDD+ 0.5V) to VSS-0.5V
Storage Temperature Range -65° to 150°C
Operating Temperature -40°C to 85°C
Lead Soldering Temperature 260° for 5 seconds
Note:
Exceeding these ratings may permanently damage the M-980-02.
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2
M-980-02
Rev. 3
Absolute Maximum Ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at these or
any other conditions beyond those indicated in the operational sections of this data sheet is not implied. Exposure of
the device to the absolute maximum ratings for an extended period may degrade the device and effect its reliability.
Specifications
Parameter Min Max Units Notes
Supply Current - 5 mA 10Signal Detection Level (5V) -38 0 dBm 1,2
Level (3V) -40 0 dBm Duration 40 - ms -
Signal Rejection Level Inband (5V) - -50 dBm 1,2
Inband (3V) - -55 dBm Outband - 0 dBm 1,3
Quiet Interval Detect Duration 40 - ms 8
85 - ms 9
“Detect” Output Pin Logic 0 - 0.5 V 4
Logic 1 VDD- 0.5 - V 4
“Enable”, “XIN” Input Pin Logic 0 V
SS
VSS+ 0.2 V 5
Logic 1 VDD- 0.2 V
DD
V5
“XIN” Duty Cycle 40 60 % 6
“XOUT” Loading - 10 pF “VREF” Output Pin Deviation -2 +2 % 7
Resistance 3.25 6.75 kΩ -
“SIGIN” Input Pin AC + DC level V
SS
- 5V V
DD
V-
Impedance (500 Hz) 80 - kΩ -
Power Consumption 3V operation - 15 mW -
5V operation - 25 mW -
Unless otherwise noted, VDD- VSS= 2.8 to 5.5 V and Ta = 25°C
Notes:
1. 0 dBm = 0.775 Vrms.
2. F = 315 to 640 Hz.
3. F > 1025 Hz, < 190 Hz.
4. Output current = 1 mA, VSS- VDD- 3.0V.
5. Input current - 10 mA max.
6. External clock.
7. Nominal = (VDD+ VSS)/2.
8. Signal dropping from -38 to -65 dBm.
9. Signal dropping from -10 to -65 dBm.
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