RSG Electronic Components GmbH - Sprendlinger Landstr. 115 - 63069 Offenbach - Germany - www.rsg-electronic.de

10155 - Rev A

TERMINATIONS

Designation

Termination

SM1

Gold Plated

SM2

Nickel, Solder Plated

SM3

Nickel, Solder Plated and Solder Dipped

SPECIFICATIONS

Specifications are typical at 25oC unless otherwise noted.

Specifications are subject to change without notice.

49 MHz

14

2.4

Quality Factor Q (k)

100

Shunt Capacitance Co (pF)

0.8

Calibration Tolerance*

A 0.01% ( 100ppm)

B 0.1%

C 1.0%

Load Capacitance

10pF (unless specified by customer)

Drive Level

200

W MAX.

Frequency-Temperature

-10

10ppm

Stability**

-40

35ppm

-55

50ppm

Aging, first year

5ppm MAX.

Shock, survival***

5,000g peak 0.3 msec., 1/2 sine

Vibration, survival

20g rms, 10-2,000 Hz random

Operating Temperature

-10

-40

-55

Storage Temperature

-55

Max Process Temperature 260

Note: The characteristics of the frequency temperature stability

follow that of AT-Cut thickness-shear mode.

+

_

+

_

+

_

+

_

+

_

+

_

+

_

AMPLIFIER

BUFFER

C

G

C

D

R

A

CX-1

Contact factory for

design guidelines

OSC

Freq (f )

O

R

f

C

S

CONVENTIONAL CMOS

PIERCE OSCILLATOR CIRCUIT

CX-7

PACKAGING

CX-7-SM

-Tray Pack (Standard)

-16mm tape, 7” or 13” reels (Optional)

Per EIA 481 (see data sheet 10109)

C

0

C

1

R

1

2

1

L

1

EQUIVALENT CIRCUIT

R

L

C

C

* Tighter tolerances available as low as 5 ppm

** Does not include calibration tolerance

*** Higher shock version available

+

_

HOW TO ORDER CX-7-SM CRYSTALS

CX-7

SM1

49 MHz

(

50

/

50

/

100

/

I

)

C=Ceramic Lid

SM1

Frequency

*Calibration

*Frequency

Total Frequency Temp. Range:

Blank=Glass Lid

SM2

Tolerance

Stability over

Tolerance

C = Commercial

SM3

@25

Temp. Range

I = Industrial

(A)

M = Military

(B)

S = Specify

(C)

*Other calibration fill in ppm.

“S” if special or

custom design.