OCXO (Oven Controlled Crystal Oscillators)
+5.0V; +12V
OC30T Series
HCMOS Square Wave
Mercury OC30T is 36.2x27.2 mm 5 pin solder sealed metal pacakge
with 25.4x17.8 mm pin-to-pin spacing high stability low aging OCXO.
Besides standard AT cut crystal, users can also choose SC cut crystal
for better performance. 50 ohm load sine output is available as OC30E series.
For same package size but with standard Eurocase OCXO pin configurations,
please refer to OC31T series.
General Specifications
( 10 MHz at+25°C, at specified Vcc and +2.5 V Vcon)
MERCURY
Since 1973
Voltage Control
on pin 1 (EFC)
(Electronics
Frequency
Tuning)
HCMOS square wave. Wave form code is “T”
1.25 MHz ~100.0 MHz
AT-cut.
Use “A” for crystal code or
SC-cut:
use “S” for crystal code.
Type of Crystal Cut Used
SC has better performance but higher cost. See technical note TN-031.
Supply Voltage (Vcc)
+5.0 V
D.C
±5% (voltage code is “5”); +12.0 V
D.C
±5% (voltage code is “12”)
±0.5 ppm max. at time of shipment; Vcon=+2.5V, at +25°C
Initial Calibration Tolerance
Best Stability
0°C to +60°C
-20°C to +70°C
-40°C to +85°C
Operating Temperature Range
±0.03 ppm
±0.08 ppm
±0.2 ppm
For
AT
crystal
(custom spec. on request)
±0.01 ppm
±0.02 ppm
±0.03 ppm
For
SC
crystal
Aging
(after 72 hours of
AT:±3
ppb max./day; ±0.5 ppm max./first year;±3 ppm max. over 10 years.
continuous operation)
SC:
±2 ppb max./day; ±0.1 ppm max./first year;±0.5 ppm max. over 10 years.
Supply Voltage ±5% Variation
±20 ppb max.
±20 ppb max.
Load ±5% variation:
AT:
3 minutes max. Within ±0.5 ppm of its reference frequency.
Warm-up time (at +25°C)
SC:
1 minute max. Within ±0.1 ppm of its reference frequency.
Referenced to fo at +25°C and over
AT:
±5 ppm min. ±20 ppm max.;
Freq. Deviation Range
operating temperature range.
SC:
±0.5 ppm min, ±2 ppm max.
2.5 V ± 2.0 V
Control Voltage Range
Frequency Stability
vs
Transfer Function
Positive: Increasing control voltage increases output frequency.
100 K ohms min.
±10% max.
EFC Linearity
1.2 Watts max. at steady-state; 3.5 Watts max. at turn-on.
15 pF HCMOS max.
Duty Cycle (measured at 50%Vcc)
+4.5 V min.
Output Voltage Logic Low (V
OL
)
5 nS max. (measured at 20%
⇄
80% of waveform)
+4.0 V
D.C
±0.3 V
D.C
. or custom.
1 Hz
-75 dBc
-85 dBc
10 Hz
-100 dBc
-120 dBc
100 Hz
-130 dBc
-140 dBc
1 KHz
-140 dBc
-145 dBc
10 KHz
-150 dBc
-150 dBc
Input Impedance
Power Dissipation (at +25°C)
Load (Fan out)
Output Voltage Logic High (V
OH
)
Rise and Fall Time
Output
Reference Voltage Output
Phase
Noise
Offset
10 MHz AT-cut XTAL
10 MHz SC-cut XTAL
Output Wave Form
Frequency Range
Power
50% ± 10%
+0.5 max.
Storage Temperature
Shock
Vibration
-55°C to +125°C
2000 G’s, 0.3 ms �½ sine
10 to 2000 Hz / 10 G’s
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: Dec. 1, 2006
Rev. 1
MERCURY
www.mercury-crystal.com
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
