CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
SPECIFICATIONS
Specifications are typical at 25OC unless otherwise noted.
Specifications are subject to change without notice.
Rf
Fundamental Frequency
Motional Resistance R1
Motional Capacitance C1
32.768 kHz 50 kHz
50 k 40 k
100 kHz
20 k
BUFFER
!
!
!
3.5 fF
1.4 fF
1.0 fF
OSC
Freq (fO)
Quality Factor Q
25,000
1.0 pF
55,000
0.8 pF
70,000
0.8 pF
RA
AMPLIFIER
CX11
Shunt Capacitance C0
Load Capacitance1
9 pF
9 pF
9 pF
Mass (SM1, ceramic lid)
Temperature Characterization2
Turnover Temperature3 T0
Frequency - Temperature
Constant k
12 mg
12 mg
12 mg
CG
CD
25 OC
17 OC
18 OC
EQUIVALENT CIRCUIT
-0.035 ppm/OC2
Standard Calibration Tolerance4
C0
20 ppm
100 ppm
1
L1
C1
R1
2
Drive Level
0.5 µW MAX
3 ppm MAX
Aging, first year
Shock, survival
R1 Motional Resistance L1 Motional Inductance
C1 Motional Capacitance C0 Shunt Capacitance
5,000 g, 0.3 ms, 1/2 sine
Vibration, survival
Operating Temp. Range
20 g, 10-2,000 Hz swept sine
-10OC to +70OC (Commercial)
PACKAGING OPTIONS
-40OC to +85OC (Industrial)
-55OC to +125OC (Military)
-55OC to +125OC
• Tray Pack
• 12 mm tape, 7”or 13” reels
Per EIA 481 (see Tape and Reel data sheet 10109)
Storage Temp. Range
Max Process Temperature
260OC for 20 sec.
1. Other load capacitances available.
2. The crystal frequency f as a function of temperature T follows the parabolic relation-
ship
f (T) = f (T0) [1 + k (T - T0)2],
where T0 is the turnover temperature and k is the frequency-temperature constant.
3. Other turnover temperatures available.
4. Tighter tolerances available.
HOW TO ORDER CX11VSM CRYSTALS
CX11V
S
C
SM1
–
32.768K
,
100
/
I
,
9pF
Load Capacitance
(Customer
Specified)
Blank = Glass Lid
T = Thin Glass Lid
C = Ceramic Lid
“S” if special or
custom design.
Blank if Std.
SM1 = Gold Plated (Lead Free)
SM2 = Solder Plated
SM3 = Solder Dipped
SM4 = Solder Plated (Lead Free)
SM5 = Solder Dipped (Lead Free)
Frequency Calibration
Temp. Range:
K = kHz
Tolerance
@ 250C
(in ppm)
C = -10OC to +70OC
I
= -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
Note: Crystals with SM1, SM4 or SM5 terminations are Pb-free.
Crystals with SM2 or SM3 terminations contain Pb.
10174 Rev B
E
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
STATEK [ STATEK CORPORATION ]
