1A20956 Crystal Quartz Drawing Number Rev1.pdf

WESTINGHOUSE FIGURE APPROVED SERI ES RESONANT

PART NUMBER NUMBER MANUFACTURERS FREQUENCY

(MHz)

1A20956H01 1 A, B 45.593 1A20956H02 1 A, B 45.674 1A20956H03 1 A, B 45.755 1A20956H04 1 A, B 45.836 1A20956H05 1 A, B 46.240 1A20956H06 1 A, B 46.321 1A20956H07 1 A, B 46.402 1A20956H08 1 A, B 46.483 1A20956H09 1 A, B 46.888 1A20956Hl0 1 A, B 46.968 1A20956Hll 1 A, B 47.049 1A20956Hl2 1 A, B 47.130 IA20956Hl3 I A, B 47.535

1A20956Hl4 1 A, B 47.616 1A20956Hl5 I A, B 47.697 IA20956Hl6 1 A, B 47. 778 IA20956Hl7 1 A, B 48.182 IA20956Hl8 I A, B 48.263 IA20956Hl9 I A, B 48.344

IA20956H20 I A, B 48.425

APPROVED MANUFACTURERS

CODE CAGE CODE

LTR. NAME H4/HB

A PIEZO CRYSTAL COMPANY 74306

B CROVEN LTD. 00807

SIZE CAGE CODE DRAWING NUMBER

A 1A20956

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1. SCOPE.

This drawing delineates the requirements for a quartz crystal.

Requirements which are specified herein but which are not specified or controlled in the manufacturer's published specifications are indicated by an asterisk(*}.

2. APPLICABLE DOCUMENTS.

Unless otherwise specified, the following documents of issue in effect on the date of invitation for bid by Westinghouse form a part of this drawing to the extent specified herein. Should a later revision of a document become available during the course of the contract, that revision may be used provided no requirements of the earlier revision are degraded.

GOVERNMENT AND NATIONALLY RECOGNIZED PUBLICATIONS

MIL-C-3098

MIL-STD-202

MIL-STD-1285

Other Publications Westinghouse Electric

PDS21869

J. REQUIREMENTS.

S .. l Order of precedence.

Crystal Units, Quartz, General Specification

Test Component

Methods Parts for Electronic and Electrical

Marking of Electrical and Electronic Parts

Standard Requirements for Purchased Items

In the event of conflict between the text of this drawing and the document references cited herein, the text of this drawing shall take precedence.

S.2 Electrical.

* 3.2.1 Series resonant frequency.

The series resonant frequency shall be as tabulated on sheet 2 and the setting tolerance shall be± 400 Hz at 60C ± 4C.

SIZE CAGE CODE DRAWING NUMBER

1A20956

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* 3.2.2 Motional inductance.

The motional inductance shall be 180 millihenries ± 15 per cent.

* 3.2.3 0 Factor.

The quality factor shall be 600,000 minimum.

* 3.2.4 Parallel capacity.

ThP parallel capacity (Co) shall be greater than 1.4 pF but less than 5.8 pF.

* 3.2.5 Frequency drift.

The allowable frequency drift over temperature shall be± 450 Hz.

* 3.2.6 Spurious responses.

The crystal shall be spurious free for± 60 KHz and spurious down at least 3 dB thereafter.

* 3.2.7 Noise.

Noise requirements testing shall be in accordance with paragraph 4.4.4.

* 3.2.8 Gain.

Gain requirements testing shall be in accordance with paragraph 4.4.5.

• 3.2.9 Series resistance.

Series resistance, Ro, shall be 60 ohms s Ros 110 ohms.

3.3 Mechanical.

3.3.1 Configuration.

The configuration shall be as in figure I.

3.3.2 Crystal cut.

The crystal cut shall be BT, fifth overtone, contoured.

* 3.3.3 Holder.

The holder shall be a TOB (HC-37) as modified herein.

3.3.4 Seal.

Th-2 seal shall be in accordance with MIL-C-3098.

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3.4 Material.

Materials used in fabrication the crystal and the crystal holder shall be in accordance with MIL-C-3098, except as specified herein.

3.5 Environmental.

* 3.5.1 General.

The crystal units shall meet the environmental requirements of MIL-C-3098, except as specified herein.

* 3.5.2 Operating temperature.

The operating temperature shall be 57C to 63C.

3.5.3 Storage temperature.

The part shall suffer no adverse effects over a storage temperature range of -20C to 65C.

3.5.4 Shock.

The crystal shall meet the requirements of 3.2 and shall not demonstrate any mechanical deterioration after being tested in accordance with 4.4.2.

3.5.5 Vibration.

• 3.6

The crystal shall meet the requirements of 3.2 and shall not demonstrate any mechanical deterioration after being tested in accordance with 4.4.3.

Identification and marking.

The unit sha'll be marked in accordance with MIL-STD-1285 with the following information:

a. Each unit shall be serialized.

b. Date code. On parts which are returned by the manufacturer after rework or reinspect ion, the manufacturer sha 11 mark a new date code prefixed by the letter "R" without removal of any prior marking.

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* 3.7 Working permanence.

Marking shall remain permanent and legible before, during, and after testing in accordance with paragraph 4.4.6.

3.8 Workmanship.

Workmanship shall be in accordance with MIL-C-3098.

* 4. QUALITY ASSURANCE PROVISIONS

4.1 Responsibility for inspection.

4.1.1 Manufacturer.

The manufacturer is responsible for controlling the quality of his product and offering to the Procuring Agency only those items that conform to all the requiremenLs specified her'ein.

4.1.2 Procuring agency.

The Procuring Agency reserves the right to perform any test it deems necessary to assure that parts conform to all the specified requirements.

4.2 Classification of testing.

Tests shall be classified into the following categories:

a. Qualification Testing: Qualification testing shall not be required.

b. Acceptance Testing: Acceptance Testing shall be performed on all parts (100 per cent) shipped to the procuring agency. These tests shall consist of those listed in Table I. Acceptance test procedures shall be prepared in accordance with PDS21869, Requirement 21.

TABLE I - ACCEPTANCE TESTS

Dimensions and Mechanical Electrical

4.3 Test data.

RequirE:ments

3.3 3.2

Test Method

MIL-C-3098, Group A

ATP

Data shall be taken and recorded for all tests performed in accordance with 4.2.b.

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4.4

4.4.1

4.4.2

4.4.3

4.4.4

4.4.5

4.4.6

Test methods.

General.

Test methods shall be in accordance with MIL-C-3098, except and specified herein.

Shock.

Test Condition shall K.

be in accordance with MIL-STD-202, Method 213, Test

Vibration.

Test shall be in accordance with MIL-STD-202, Method 201A, except the low frequency limit shall be 5 Hz.

Noise.

The noise measured in an HP3074A (or equivalent) test set with a shall Westinghouse be below a supplied template oscillator supplied using by the

Westinghouse.

crystals

This specified template herein has prototype been phase established of ARSR-4 by the program.

performance

Crystals of not crystals meeting used in this the specification shall not be accepted.

Gain.

With insta the lled in a frequency passive set to the transmission series type resonant test fixture, frequency and the the crystal amplitude swept from -40 dBm to +15 dBm the crystal shall show a constant output on a HP3577 display within tolerance of± 0.25 dB.

Marking permanence.

Testing shall be in accordance with MIL-STD-202, Method 215.

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5.0 Device similarity.

This drawing is for a special, specified and selected item that is similar to the generic type shown below. No guarantees are made of interchangeability.

ITEM NUMBER

HOl to H20

MANUFACTURER

Pi ezo Crysta 1

SIZE CAGE CODE

SCALE: NONE

MANUFACTURER'S

PART NUMBER

CS1326 Series

DRAWING NUMBER

REV B I SHEET 7

i-.--- .515 DIA---�

1-,---- .605 ---,--1

I I t .26 5

_J_

CASE GND

-o- o-e----+---�

_,__I _I_ l_--+-----'---

.200

I I .1 oo

.020 DIA

.100

.200 r--

NOTE:

.1/ Dimensions ore in inches.

FIGURE 1 - CONFIGURATION

TOLERANCES

UNLESS OTHERWISE SPECIFIED

DECIMALS

2 PLACES

± .02

3 PLACES

± .005

ANGLES

DEGREES

SIZE CAGE CODE

A

COMPUTER GENERATED DOCUMENT

MANUAL CHANGES NOT ALLOWED

DWG NO.

SCALE NONE REV. LTR. B SHEET 9

REVISIONS

REV DESCRIPTION DATE APPROVAL

A See Rev P870B 90-04-25 D. Dunlap N. Carter

SIZE CAGE CODE DRAWING NUMBER

SCALE: NONE REV B [ SHEET 11