M-985-01P

M-985-01P Datasheet

M-985-01

Part	Datasheet
M-985-01P	M-985-01P (pdf)

Related Parts	Information
M-985-01S	M-985-01S
M-985-01T	M-985-01T

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• 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 MHz crystal time base • Wide dynamic range 30 dB • Lower power consumption power-down mode • 425 Hz detection • Special Information Tone SIT Detection Applications • Automatic dialers • Dialing modems • Traffic measurement equipment • Test equipment • Service evaluation • Billing systems M-985-01 Precise Call Progress and Special Information Tone Generator The M-985-01 is an integrated circuit precise tone detector for call progress and special information tones SIT , as defined by CCITT. The use of integrated circuit techniques allows the M-985-01 to pack the eight filters for call progress detection into a single 22-pin DIP or a 20-pin SOIC. A MHz crystal-controlled time base guarantees accuracy and repeatability. The M-985-01 combines the call progress detection of the M-982-02 and the SIT detection of the M-984-02. It has an operating voltage range down to 3V. It has low power consumption under normal operating conditions. A power down PD feature is provided to further reduce power consumption when inactive. Ordering Information Part # M-985-01P M-985-01S M-985-01T Description 22-pin plastic DIP 20-pin plastic SOIC 20-pin plastic SOIC,Tape and Reel Pin Diagram Block Diagram DS-M985-01-R1 M-985-01 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 VSS - to VDD + 0.3V VSS - to VDD + V 260° C for 5 seconds Note Exceeding these ratings may permanently damage the M-985-01. 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 Operating Conditions Power supply noise Power VREF Current drain IDD VREF Impedance Signal Frequency range Detection, Level VDD = 5.0v all tones except SIT tones. Level VDD = 3.0V Duration tDD Signal drop out bridging time tBB Level skew between adjacent inband signals High level to low level signal for detection of both tIL Time to output tDO Time from OUT n to STROBE tDS Signal Detection, Frequency Range 940, 1400, 1800 Level VDD = 5.0V Hz Level VDD = 3.0V Duration Signal drop out bridging time tBB Signal to noise ratio Signal Rejection, Frequency range all tones except Level VDD = 5.0V SIT tones. Level VDD = 3.0V Interval duration tID Time to end of output tIO Conditions - - 5 kHz -

PDF Datasheet Preview

• 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 MHz crystal time base
• Wide dynamic range 30 dB
• Lower power consumption power-down mode
• 425 Hz detection
• Special Information Tone SIT Detection

Applications
• Automatic dialers
• Dialing modems
• Traffic measurement equipment
• Test equipment
• Service evaluation
• Billing systems

M-985-01

Precise Call Progress and Special Information Tone Generator

The M-985-01 is an integrated circuit precise tone detector for call progress and special information tones SIT , as defined by CCITT.

The use of integrated circuit techniques allows the M-985-01 to pack the eight filters for call progress detection into a single 22-pin DIP or a 20-pin SOIC. A MHz crystal-controlled time base guarantees accuracy and repeatability.

The M-985-01 combines the call progress detection of the M-982-02 and the SIT detection of the M-984-02. It has an operating voltage range down to 3V. It has low power consumption under normal operating conditions. A power down PD feature is provided to further reduce power consumption when inactive.
Ordering Information

Part # M-985-01P M-985-01S M-985-01T

Description 22-pin plastic DIP 20-pin plastic SOIC 20-pin plastic SOIC,Tape and Reel

Pin Diagram

Block Diagram

DS-M985-01-R1

M-985-01

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

VSS - to VDD + 0.3V VSS - to VDD + V 260° C for 5 seconds

Note Exceeding these ratings may permanently damage the M-985-01.

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

Operating

Conditions

Power supply noise

Power VREF

Current drain IDD VREF Impedance

Signal

Frequency range

Detection,

Level VDD = 5.0v
all tones except

SIT tones.

Level VDD = 3.0V

Duration tDD Signal drop out bridging time tBB Level skew between adjacent inband signals

High level to low level signal for detection of both tIL Time to output tDO

Time from OUT n to STROBE tDS Signal Detection, Frequency Range 940, 1400, 1800 Level VDD = 5.0V Hz

Level VDD = 3.0V

Duration

Signal drop out bridging time tBB Signal to noise ratio

Signal Rejection, Frequency range all tones except Level VDD = 5.0V SIT tones.

Level VDD = 3.0V

Interval duration tID Time to end of output tIO

Conditions -
- 5 kHz -

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Datasheet ID: M-985-01P 523333