+3.3 V OC14T33A, OC14GT33A (RoHS version), HCMOS Square

OCXO (Oven Controlled Crystal Oscillators)
OC14T33A, OC14GT33A (RoHS version),
+3.3 V
HCMOS Square
MERCURY
Since 1973
y Full size 4 pin DIP full metal package
y+3.3 V D.C supply Voltage
y 15 pF load HCMOS square wave output
y AT-cut crystal
y Voltage control (Electronic Frequency Tuning) on pin 1
General Specifications ( 10 MHz at+25°C, at +3.3 V Vcc and +1.65 V Vcon)
HCMOS Square Wave. Wave form code is “T”
1.25 MHz ~40.0 MHz
AT-cut. Use “A” for crystal code.
+3.3 V ±0.15 V (voltage code is “33”)
±0.5 ppm max. at the time of shipment. Vcon=+1.65 V
Operating
0°C to +60°C
-20°C to +70°C
-40°C to +85°C
Temperature
Best Stability
±0.075 ppm
±0.15 ppm
±0.25 ppm
Available
Typical Stability
±0.2 ppm
±0.3 ppm
±0.5 ppm
Operating Temperature Range
(custom spec. on request)
Aging
< ±0.7 ppm first year. < ±4.0 ppm over 10 years.
Short Term Stability
<5 E -10 (0.1 sec to 30 sec.); typical 5 E -11 at 1 sec.
Supply Voltage ±0.15V Variation
Warm-up time (at +25°C)
< ±0.1 ppm
< ±0.01 ppm
Load ±5% variation
5 minutes max. Within ±0.1 ppm of its reference frequency.
Voltage Control
on pin 1 (EFC)
(Electronics
Frequency
Tuning)
Frequency Stability
vs
Output Wave Form
Frequency Range
Type of Crystal Cut Used
Supply Voltage (Vcc)
Initial Calibration Tolerance
Power
Output
Freq. Deviation Range
±4 ppm min. Referenced to fo at +25°C.
Control Voltage Range
0.0 V to 3.3 V
Transfer Function
Positive: Increasing control voltage increases output frequency.
Input Impedance
47 K ohms min.
EFC Linearity
±10% max.
Power Dissipation (at +25°C)
1.5 Watts max. at steady-state. 2.5 Watts max. at turn-on.
Load (Fan Out)
10 LS or 47 pF max.
Duty Cycle (measured at 1/2Vcc)
50% ±10%
Output Voltage Logic High (VOH)
+2.8 V min
Rise and Fall Time
7 nS max. ( measured at 20% ⇄ 80% of waveform.)
Output Voltage Logic Low (VOL)
+0.4 V max.
Offset
10 MHz at static
condition
Storage Temperature
1 Hz
10 Hz
100 Hz
1 KHz
10 KHz
-80 dBc
-110 dBc
-135 dBc
-145 dBc
-150 dBc
Shock
2000 G’s, 0.3 ms ½ sine
Vibration
10 to 2000 Hz / 10 G’s
Phase
Noise
-65°C to +125°C
MERCURY
www.mercury-crystal.com
Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: sales-tw@mercury-crystal.com
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: sales-us@mercury-crystal.com
MERCURY
Page 1 of 2
Date: July 20, 2006
Rev. 0
OCXO (Oven Controlled Crystal Oscillators)
OC14T33A, OC14GT33A (RoHS version),
+3.3 V
HCMOS Square
MERCURY
Since 1973
OC14T33A Test Circuit:
Frequency counter
T2
T1
Oscilloscope
A
+
-
Vcc +
V
-
14
8
1
7
90%
50%
0.1uF
15 pF
10%
+
-
V control
Tr
Tf
Duty Cycle =
T1
*100%
T2
OC14T33A Package Dimensions and Pin Connections:
Pin 1: Voltage Control (EFC) Pin 7: Ground / Case
Pin 8: RF Output
Pin 14: Supply Voltage
unit mm [inches]
Square corner is pin No. 1
Part Number Format and Example:
Example: OC14GT33A-10.000-0.1/-20+70
OC 14
G
T
33
A
—
10.000
—
0.1
dash
n o
p q r
s dash t
u
n: “OC” Product Prefix for OCXO
o: Package type. “14” for 4 pin DIP.
p: “G” for RoHS compliant equivalent,” ”(blank) for non-RoHS part.
q: Output wave form code. “T” for HCMOS square wave.
r: Supply voltage code. “33” for +3.3 V;
s: Crystal type. “A” for AT-cut crystal;
t: Frequency in MHz;
u: Frequency stability in ppm;
v: Operating temperature range: -20°C to +70°C in this case.
MERCURY
Page 2 of 2
Date: July 20, 2006
⁄
-20+70
slash v
Rev. 0