EURO
QUARTZ
Miniature SMD Crystal for Pierce Oscillators
FEATURES
Frequency Range 18kHz to 600kHz
High shock resistance
Low ageing
Ultra low profile package (1mm)
Full MIL testing available
CX6VSM CRYSTAL
18kHz to 600kHz
OUTLINE & DIMENSIONS
DESCRIPTION
CX6VSM crystals are leadless devices designed for surface mounting
on PCBs or hybrid substrates. The crystals are 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:
18.0kHz to 600.0kHz
Functional Mode:
Tuning Fork (Flexure)
1
:
Standard Calibration Tolerance
see table
Motional Resistance (R1):
Figure 1
Max = 18~24.9kHz, 2x typical
25~600kHz, 2.5x typical
Motional Capacitance (C1):
Figure 2
Quality Factor (Q):
Figure 3
Min. is 0.25x typical
Shunt Capacitance (C0):
1.4pF max.
Drive Level
18~24.9kHz:
0.5µW max.
25~600.0kHz: 1.0µW max.
Turning Point (T
0
)
2
:
Figure 4
Temperature Coefficient (k):
-0.035ppm/°C
2
Ageing, first year:
5ppm max.
3
:
Shock, survival
1,500g peak, 0.3ms, ½ sine
Vibration, survival
3
:
10g rms, 20~2000Hz random
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
1.
2.
3.
Tighter frequency calibration is available.
Other turning point is available
Higher shock and vibration survival is available
Dim. H
SM1
SM2
SM3
SM4
SM5
Glass
Lid
0.99
1.04
1.12
1.04
1.12
Ceramic
Lid
1.35
1.40
1.47
1.40
1.47
TERMINATIONS - PLATING
Designation
Termination
SM1
SM2
SM3
SM4
SM5
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
PACKAGING OPTIONS
CX6VSM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER CX6VSM CRYSTALS
CX6V - S
'S' if special,
custom design.
Otherwise leave
blank
-
C
Blank = glass lid
C = ceramic lid
-
SM1
-
32.768K,
Frequency
K = kHz
30
Calibration
Tolerance
@25°C
(in ppm)
/
M
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
Miniature SMD Crystal for Pierce Oscillators
STANDARD CALIBRATION TOLERANCE
Frequency Range (kHz)
18~74.9
±30ppm
(0.003%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
75~169.9
CX6VSM CRYSTAL
18kHz to 600kHz
FIGURE 1
CX6V Typical Motional Resistance R1
170~249
±100ppm
(0.01%)
±200ppm
(0.02%)
±2000ppm
(0.2%)
250~600
±200ppm
(0.02%)
±500ppm
(0.05%)
±5000ppm
(0.5%)
±50ppm
(0.005%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
LOAD CAPACITANCE (CL)*
Frequency
Range (kHz)
Load
Capacitance
Frequency
Range (kHz)
Load
Capacitance
18~24.9
25~54.9
55~100.0
10pF
9pF
8pF
100.1~179.9
180~600
5pF
4pF
FIGURE 2
CX6V Typical Motional Capacitance C1
* The load capacitance we use to calibrate CX6VSM.
(Other CL is available.)
CRYSTAL EQUIVALENT CIRCUIT
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
FIGURE 3
CX6V Typical Quality Factor (Q)
CONVENTIONAL CMOS PIERCE OSCILLATOR CIRCUIT
FIGURE 4
CX6V 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 info@euroquartz.co.uk www.euroquartz.co.uk
嵌入式系统
