M-993 Clare, M-993 Datasheet
M-993
Specifications of M-993
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M-993 Summary of contents
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... Test equipment Block Diagram DS-M993-R1 Region 1 MF Tone Generator Description The M-993 is a monolithic CMOS integrated circuit designed to generate multifrequency (MF) tone pairs for use in trunk signaling. The tones generated con- form to CCITT R1 signal recommendations and to AT&T MF standards. The M-993 permits design engi- neers to implement a highly accurate MF sender with a minimum of space, power, and added components ...
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... M-993 Absolute Maximum Ratings Storage Temperature Operating Ambient Temperature V DD Any Input Voltage V SS Note: 1. Exceeding these ratings may permanently damage the M-993. Specifications Parameter Power Supply V DD and Reference Current Drain, IDD V PIN: REF Voltage Internal Resistance from V Oscillator Frequency Deviation ...
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... X Crystal oscillator output. OUT Power-On Reset Circuit A typical control sequence for the M-993 is: (1) set data lines Selection for data settings for a particular tone pair output).to desired frequency selection, (2) wait for data lines to settle, (3) drive the chip enable (CE) low, (4) maintain CE low for desired tone duration (Note: data lines may be changed after data hold time), and (5) return logic high ...
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... M-993 Timing Diagram Expanded Timing Diagram Typical Application 4 www.clare.com Rev. 1 ...
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... C .008 .014 D .735 .775 E .300 .325 E1 .240 .280 e .100 BSC ec 0° 15° L .115 .150 www.clare.com M-993 Tolerances Metric (mm) Min Max - 5.33 - .38 - .36 .56 1.1 1.8 .20 .36 18.7 19.7 7.6 8.3 6.1 7.1 2.54 BSC 0° 15° 2.9 4 ...
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... Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. Specification: DS-M-993-R1 ©Copyright 2001, Clare, Inc. All rights reserved. Printed in USA. 7/18/01 ...