Data Sheet

EURO QUARTZ
CX1VSM CRYSTAL
Miniature SMD Crystal for Pierce Oscillators
10kHz to 600kHz
FEATURES
Frequency Range 10kHz to 600kHz
High shock resistance
Low ageing
Designed for low power applications
Full MIL testing available
OUTLINE & DIMENSIONS
DESCRIPTION
CX1VSM crystals consist of a high quality tuning fork resonator in a
rugged, hermetically sealed ceramic package. CX1VSM is intended
for use in Pierce (single inverter) oscillator circuits.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Frequency Range:
10.0kHz to 600.0kHz
Standard Calibration Tolerance*: see table
Motional Resistance (R1):
Figure 1
Max = 10~169.9kHz, 2x typical
170~600kHz, 2.5x typical
Motional Capacitance (C1):
Figure 2
Quality Factor (Q):
Figure 3
Min. is 0.25x typical
Shunt Capacitance (C0):
2.0pF max.
Drive Level
10~24.9kHz:
0.5µW max.
25~600.0kHz: 1.0µW max.
Turning Point (T0)**:
Figure 4
Temperature Coefficient (k):
-0.035ppm/°C2
Ageing, first year:
5ppm max.
Shock, survival***:
1,000g, 1ms, ½ sine
Vibration, survival***:
20g rms, 10~2000Hz
Operating Temperature Range
Commercial:
-10° to +70°C
Industrial:
-40° to +85°C
Military:
-55 to +125°C
Storage Temperature Range:
-55° to +125°C
Maximum Process Temperature:
+260°C for 20 seconds
* Tighter frequency calibration is available.
** Other turning point is available
*** Higher shock and vibration survival is available
DIMENSION 'H'
Terminations
Glass Lid
SM1
SM2/SM4
SM3/SM5
Ceramic Lid
1.65
1.70
1.78
1.78
1.83
1.90
STANDARD CALIBRATION TOLERANCE
Frequency Range (kHz)
16~74.9
75~169.9
170~249
250~600
±30ppm
(0.003%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
±50ppm
(0.005%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
±100ppm
(0.01%)
±200ppm
(0.02%)
±2000ppm
(0.2%)
±200ppm
(0.02%)
±500ppm
(0.05%)
±5000ppm
(0.5%)
LOAD CAPACITANCE (CL)*
Frequency
Range (kHz)
PACKAGING OPTIONS
CX1VSM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
10~15.9
16~24.9
25~54.9
Load
Capacitance
11pF
10pF
9pF
Frequency
Range (kHz)
55~99.9
100~179.9
180~600
Load
Capacitance
8pF
5pF
4pF
* The load capacitance we use to calibrate CX2VSM.
(Other CL is available.)
HOW TO ORDER CX1VSM CRYSTALS
CX1V - S
'S' if special,
custom design.
Otherwise leave
blank
-
C
Blank = glass lid
C = ceramic lid
-
SM1
-
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
32.768K
30
Frequency
K = kHz
Calibration
Tolerance
@25°C
(in ppm)
/
I
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
EURO QUARTZ
CX1VSM CRYSTAL
Miniature SMD Crystal for Pierce Oscillators
SUGGESTED SOLDERING PATTERN
10kHz to 600kHz
FIGURE 1
CX1V Typical Motional Resistance R1
CRYSTAL EQUIVALENT CIRCUIT
FIGURE 2
CX1V Typical Motional Capacitance C1
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
CONVENTIONAL CMOS PIERCE OSCILLATOR CIRCUIT
FIGURE 3
CX1V Typical Quality Factor (Q)
TERMINATIONS - PLATING
Designation
SM1
SM2
SM3
SM4
SM5
Termination
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
FIGURE 4
CX1V Typical Turning Point Temperature (To)
Turning Point Temperature
Note: Frequency f at temperature T is related to frequency F0 at
turning point temperature To by:
f-fo
=k(T-To)2
fo
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
Similar pages