M-984-02T

M-984-02T Datasheet

M-984-02

Part	Datasheet
M-984-02T	M-984-02T (pdf)

Related Parts	Information
M-984-02P	M-984-02P
M-984-02S	M-984-02S

PDF Datasheet Preview
• Detects single-frequency tones used for error indication and call progress in telephone systems • Provides detection windows for 400/425 Hz Call Progress 950 Hz Special and error indication 1400 Hz Special and error indication 1800 Hz Special and error indication • Separate tri-state outputs for each tone window • Inexpensive MHz crystal time base • Auxiliary MHz clock output • 14-pin DIP package and 16-pin SOIC package • Single supply 3 to 5 volt low power CMOS • Wide dynamic range 30 dBm • Automatic dialers • Modems • Telecom test equipment • Telephone traffic measurement, • Service evaluation • Billing equipment Pin Diagram M-984-02 Special Information Tone Detector The M-984-02 Special Information Tone Detector is a monolithic integrated circuit designed to provide reliable detection of many common telephone network status signals. In particular, it detects the signals known as Special Information Tones SITs or error tones as defined by the CCITT, and single tones often used as dial tone, audible ringing, and other general progress indications. The M-984-02 uses CMOS switched capacitor filters and a crystal time base to achieve the high stability and accuracy specified. Each tone detection window has an associated output pin, which can be placed in a high impedance state for use with time-share microcomputer bus applications. In comparison with the earlier M-984, the M-984-02 has wider acceptance bands for SIT tones to facilitate reception of tape-loop tones, lower power consumption at 5V operation, 3V operation, superior temperature performance, lower cost, and is available in DIP, SOIC, and SOIC tape and reel versions. Ordering Information Part # M-984-02P M-984-02S M-984-02T Description 14-pin plastic DIP 16-pin plastic, SOIC 16-pin SOIC, Tape and Reel Block Diagram DS-M984-02-R3 M-984-02 Absolute Maximum Ratings DC Supply Voltage Input Voltage on SIGIN Input Voltage on Any Pin except SIGIN VSS - 6.5V to VDD +0.3V VSS - to VDD + 0.3V Storage Temperature Range -40°C to +150°C Operating Temperature Range -40°C to +85°C Lead Soldering Temperature 260°C for 5 seconds Note Exceeding these ratings may permanently damage the device. 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 Conditions Operating Conditions VDD Power supply noise - 5 kHz Power VREF Current drain IDD VREF Impedance VREF open - Signal Detection Frequency Range Level VDD = 5.0V Level VDD = 3.0V Duration Bridge Time fc = 400 Hz fc = 950, 1400, 1800 Hz Signal to Noise Ratio Signal Rejection Frequency Range Level VDD = 5.0V Level VDD = 3.0V Duration Outputs Inputs Except X358

PDF Datasheet Preview

• Detects single-frequency tones used for error indication and call progress in telephone systems
• Provides detection windows for 400/425 Hz Call Progress 950 Hz Special and error indication 1400 Hz Special and error indication 1800 Hz Special and error indication
• Separate tri-state outputs for each tone window
• Inexpensive MHz crystal time base
• Auxiliary MHz clock output
• 14-pin DIP package and 16-pin SOIC package
• Single supply 3 to 5 volt low power CMOS
• Wide dynamic range 30 dBm
• Automatic dialers
• Modems
• Telecom test equipment
• Telephone traffic measurement,
• Service evaluation
• Billing equipment

Pin Diagram

M-984-02

Special Information Tone Detector

The M-984-02 Special Information Tone Detector is a monolithic integrated circuit designed to provide reliable detection of many common telephone network status signals. In particular, it detects the signals known as Special Information Tones SITs or error tones as defined by the CCITT, and single tones often used as dial tone, audible ringing, and other general progress indications. The M-984-02 uses CMOS switched capacitor filters and a crystal time base to achieve the high stability and accuracy specified. Each tone detection window has an associated output pin, which can be placed in a high impedance state for use with time-share microcomputer bus applications.

In comparison with the earlier M-984, the M-984-02 has wider acceptance bands for SIT tones to facilitate reception of tape-loop tones, lower power consumption at 5V operation, 3V operation, superior temperature performance, lower cost, and is available in DIP, SOIC, and SOIC tape and reel versions.
Ordering Information

Part # M-984-02P M-984-02S M-984-02T

Description 14-pin plastic DIP 16-pin plastic, SOIC 16-pin SOIC, Tape and Reel

Block Diagram

DS-M984-02-R3

M-984-02

Absolute Maximum Ratings

DC Supply Voltage

Input Voltage on SIGIN

Input Voltage on Any Pin except SIGIN

VSS - 6.5V to VDD +0.3V VSS - to VDD + 0.3V

Storage Temperature Range
-40°C to +150°C

Operating Temperature Range
-40°C to +85°C

Lead Soldering Temperature
260°C for 5 seconds

Note Exceeding these ratings may permanently damage the device.

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

Conditions

Operating Conditions

VDD Power supply noise
- 5 kHz

Power VREF

Current drain IDD VREF Impedance

VREF open -

Signal Detection

Frequency Range

Level VDD = 5.0V Level VDD = 3.0V Duration

Bridge Time
fc = 400 Hz fc = 950, 1400, 1800 Hz

Signal to Noise Ratio

Signal Rejection

Frequency Range

Level VDD = 5.0V

Level VDD = 3.0V

Duration

Outputs Inputs

Except X358

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived M-984-02T Datasheet file may be downloaded here without warranties.

Datasheet ID: M-984-02T 523329