EUROQUARTZ CX-4VSC-SM232.768A Cx miniature crystal Datasheet

CX MINIATURE CRYSTALS
CX-4V-SM
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: [email protected]
Web: www.euroquartz.co.uk
Page
30kHz to 200kHz
ULTRA-MINIATURE
MINIATURE
SMD CRYSTAL
1 of 2
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General Description
The ultra-miniature CX-4V-SM quartz crystals are hermetically
sealed in a very small surface-mount package measuring 5.0mm x
1.83mm. The high quality tuning-fork resonator is intended for
use in Pierce oscillators. (Single inverter.)
Surface-mount - infrared, vapour phase,
wave solder or epoxy mount techniques
Low profile, hermetically sealed package
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
Full military environmental testing available
Specification
D
(TO P)
Frequency Range:
Calibration Tolerance:
Motional Resistance (R1):
Motional Capacitance (C1):
Quality Factor (Q):
Shunt Capacitance (C0):
Load Capacitance*:
Turning Point**:
Calibration Tolerance***:
Drive Level:
Temperature Coefficient (k):
Note: Frequency (f) deviation from
temperature (t0) =
A
F
D
B
C
E
Outline
CX-4V-SM Package Dimensions
Dimension
Typical
(mm)
Maximum
(mm)
A
5.00
5.33
B
1.83
2.16
C
-
see below
D
0.97
1.22
E
0.51
0.76
F
0.64
0.89
Dimension
“C”
Glass Lid
(mm max.)
Ageing, first year:
Shock, survival:
Vibration, survival:
Operating Temperature:
Storage Temperature:
Process Temperature:
Specifications are typical at 25°C unless otherwise indicated.
Ceramic Lid
(mm max.)
SM1
1.14
1.27
SM2
1.17
1.30
SM3
1.22
1.35
*
**
***
Other load capacitance values available
Other turning point temperature available
Tighter tolerances available
CX-4V-SM Motional Params., Q, C0, CL and Turning Point
Frequency
32.768kHz 100kHz
Motional Resistance R1 (W)
Equivalent Circuit
1
L1
C1
30kHz to 200kHz
see table below
see table below
see table below
see table below
see table below
see table below
see table below
see table below
0.5mW max.
-0.035ppm/°C2
frequency (f0) @ turning point
f-fo k(T-To)2
=
fo
±5ppm max.
5000g 0.3ms, ½ sine
20g rms 10-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
260°C for 20 seconds
R1
C0
2
50
48
2.7
Motional Capacitance C1 (fF)
2.3
1.07
2.1
Quality Factor (Q) ‘000s
40
85
140
Shunt Capacitance C0 (pF)
1.1
0.7
1.1
9
8
5
25
10
9
Load Capacitance CL (pF)
Turning Point (°C)
CX-4V-SM Calibration Tolerance @ 32.768kHz
L 1 Motional Inductance
C 1 Motional Capacitance C0 Shunt Capacitance
R 1 Motional Resistance
200kHz
Calibration
Glass Lid
Ceramic Lid
A
±0.003%
±0.01%
B
±0.01%
±0.1%
C
±0.1%
±1.0%
CX MINIATURE CRYSTALS
CX-4V-SM
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: [email protected]
Web: www.euroquartz.co.uk
Page
30kHz to 200kHz
ULTRA-MINIATURE
MINIATURE
SMD CRYSTAL
2 of 2
Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
Rf
Amplifier
CS
C1
Buffer
Osc.
Freq. (Fo)
RA
CX-2
C2
Solder Pad Layout
1.5
2.3
4.0
Terminations
Designation
Termination
SM1
Gold Plated
SM2
Nickel, Solder Plated
SM3
Nickel, Solder Plated and Solder Dipped
Packaging
CX-3H-SM- Bulk Pack (Standard)
- 16mm tape, 178mm or 330mm reels (Optional)
per EIA 481
- Tray Pack (Optional)
Order Code
CX-4V
C = Ceramic Lid
Blank = Glass Lid
“S” if special
or custom design
Blank if standard
Frequency
-SM1 32.768kHz ( A
SM1
SM2
SM3
/
Calibration
Tolerance*
@ 25°C
A, B, C
*For other calibration tolerances
enter figure in ppm
I
)
Temperature
Range:
C = Commercial
I = Industrial
M = Military
S = Specify
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