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Clare  Inc.
Clare Inc.


M-982-02T

Precise Call Progress Tone Detector



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M-982-02T pdf
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
1



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M-982-02T pdf
M-982-02
Absolute Maximum Ratings
Storage Temperature
-40 to 150°C
Operating Ambient Temperature
-40 to 85°C
VDD
Input Voltage on SIGIN
Input Voltages (except SIGIN)
Lead Soldering Temperature
7V
VSS - 6.5 to VDD + 0.3V
VSS - 0.3 to VDD + 0.3 V
260° C for 5 seconds
Note: Exceeding these ratings may permanently damage the M-982-02.
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 opera-
tional sections of this data sheet is not implied. Exposure of
the device to the absolute maximum ratings for an extend-
ed period may degrade the device and effect its reliability.
Specifications
Operating
Conditions
Power
VREF
Signal
Detection
Parameter
VDD
Power supply noise
Current drain (IDD)
VREF
Impedance
Frequency range
Level: VDD = 5.0V
Conditions
-
0.1 - 5 kHz
VREF open
-
-
in-band signal
XRANGE = open
XRANGE = VSS
Signal
Rejection
Outputs
Inputs
Level: VDD = 3.0V
Duration (tDD)
Bridge time (tBB)
Level skew between adjacent
XRANGE = open
XRANGE = VSS
-
-
inband signals
for detection of both
High level to low level signal for
high = 0 dBm (775 mV)
detection of both (tIL)
Time to output (tDO)
low = -30 dBm (24.5 mV)
SIGIN -24 dBm
SIGIN < -24 dBm
Time from DET n to STROBE (tDS)
Frequency range
-
-
Level: VDD = 5.0V
Level: VDD = 3.0V
Interval duration (tID)
Time to output (TIO)
DET n,
STROBE pins
DET n pins
EN, OE, XRANGE,
VOL
VOH
IOZ
VIL
XRANGE = open
XRANGE = VSS
XRANGE= open
XRANGE = VSS
-
-
ISINK = -1mA
ISOURCE=1mA
VO=VDD, VSS
-
MODE, PD pins
VIH
VDD = 5V
VDD = 2.7V
Pull-up and Pull-down MODE = VSS
VDD = 5V
currents
VDD = 2.7V
/Xrange = VSS
-
PD =VDD
-
Min
2.7
-
-
48% of VDD
3.25
-1
-30
(24.5 mV)
-40
(7.8 mV)
-33 (17.4 mV)
-43 (5.5 mV)
200
-
-
1
-
-
-
-6
-
-
-
-
160
-
-
VDD -0.5
-
-
VDD - 2.0
VDD - 0.5
12.5
4
2
4
Max
5.5
20
15
52% of VDD
8.25
+1
0
(775 mV)
-10
(245 mV)
-3 (549 mV)
-13 (173.5 mV)
-
20
Units
V
mV p-p
mA
V
kW
% of fo
dBm
dBm
-
dBm
dBm
ms
ms
Notes
-
-
-
1
6 dB
- s-
200
240
10
-6
-50(2.5 mV)
-60 (0.8 mV)
-53 (1.7 mV)
-63 (.6 mV)
-
200
0.5
-
1
0.5
-
-
50
20
6
10
ms
ms
ms
% of fo
dBm
dBm
dBm
dBm
ms
ms
V
V
µA
V
V
V
µA
µA
µA
µA
-
1
-
-
2
www.clare.com
Rev. 4



Part Number M-982-02T
Description Precise Call Progress Tone Detector
Maker Clare  Inc. - Clare Inc.
Total Page 7 Pages
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