M-991

M-991 Datasheet


M-991

Part Datasheet
M-991 M-991 M-991 (pdf)
Related Parts Information
M-991-01SM M-991-01SM M-991-01SM
M-991-01SMTR M-991-01SMTR M-991-01SMTR
PDF Datasheet Preview
INTEGRATED CIRCUITS DIVISION

Features
• Generates standard call progress tones
• Digital input control
• Linear analog output
• Power output capable of driving standard line
• 14-pin DIP and 16-pin SOIC package types
• Single supply 5V CMOS low power
• Inexpensive MHz time base
• Temperature range from -25ºC to 70ºC
• Telephone Systems
• Test Equipment
• Callback
• Security Systems
• Billing Systems

M-991

Call Progress Tone Generator

Description The M-991 is a call progress tone generator integrated circuit for use in telephone systems. The circuit uses low-power CMOS techniques to generate tones which are digitally controlled and highly linear. The M-991 is designed to permit operation with almost any system. The use of integrated circuit techniques allows the M-991 to incorporate the control, tone generating, and power output buffer into a single 14-pin DIP or 16-pin SOIC. A 3.58-MHz color burst crystal-controlled time base guarantees accuracy and repeatability.
Ordering Information

Part # M-991 M-991-01SM M-991-01SMTR

Description 14-Pin Plastic DIP 16-Pin SOIC 16-Pin SOIC, Tape & Reel

Pin Configuration

Block Diagram

DS-M-991-R03

INTEGRATED CIRCUITS DIVISION

Absolute Maximum Ratings

Parameter VDD Any Input Voltage Operating Ambient Temperature Storage Temperature

Ratings 7

VSS-0.6 to VDD+0.6 -25 to +70 -55 to +125

Units V °C °C

M-991

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 affect its reliability.

Specifications

Parameter Power Supply and Reference Oscillator

Tone Output Control

Timing

VDD Current Drain IDD VREF Pin Deviation From VDD+VSS /2 Internal Resistance From VREF to VDD, VSS Frequency Deviation

External Clock XOUT Open

VIL VIH Duty Cycle

XIN, XOUT Loading

Capacitance

Resistance

Frequency Deviation

Level

Distorting Components

Idle

OUTDRIVE Envelope Rise Time

DX, CE Pins:

VIL VIH Mute Pins:

VOL ISINK = VOH ISOURCE = Data Setup tDS Data Hold tDH Chip Enable Fall tPL Turn On Delay tTO Turn Off Delay tTD Mute Delay from Outdrive tMO
0 VDD-
20 100 -35 -

VDD-
200 10 -

Notes Unless Otherwise 1 All DC voltages are referenced to VSS. 2 Vrms per tone, load. 3 Any one frequency relative to the lowest level output tone f<4000Hz 4 0 dBm = 0.775Vrms. 5 To 90% maximum amplitude. 6 For all supply voltages in the operating range.

Units Notes
7 At XOUT pin as compared to 3.579545MHz. 8 OUTDRIVE with load > 5 with load. 9 Resistance at VREF to VDD or VSS > 10 Crystal oscillator active. 11 Measured 90% to

INTEGRATED CIRCUITS DIVISION

M-991
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Datasheet ID: M-991 644358