OC18T
Square Wave
Applications
●
●
●
●
OC18E
True Sine Wave
Best stability
±0.01 ppm
( SC-cut )
±0.02 ppm
( AT-cut )
Voltage Control
5 pins
12V
5.0V
Min.
1.25 MHz
Max.
100 MHz
OC18_ (
20.3 * 20.3 * 10.5 mm
) , 5 pin solder sealed metal package
+12.0V , +5.0V Supply Voltages
" AT - cut " crystal or " SC - cut " crystal
Voltage control ( Electronic Frequency Tuning ) is standard .
General Specifications
( at+25°C and specified input voltage )
AT - cut , use " A " for crystal code ; SC - cut , use " S " for crystal code .
Square wave. Wave form code is “ T ”
+12V
+12V ± 0.5V , " 12 "
1.25 ~ 100.0 MHz
± 0.5 ppm ( max.)
Vcon = +2.5 V
AT - cut
± 0.02
± 0.05
± 0.1
SC - cut
± 0.01
± 0.01
± 0.03
+5 V
+5.0V ± 0.2V , " 5 "
1.25 ~ 100.0 MHz
± 0.5 ppm ( max.)
Vcon = +2.5 V
AT - cut
± 0.02
± 0.05
± 0.1
SC - cut
± 0.01
± 0.01
± 0.03
True Sine Wave. Wave form code is “ E ”
+12V
+12V ± 0.5V , " 12 "
10.0 ~ 100.0 MHz
± 0.5 ppm ( max.)
Vcon = +2.5 V
AT - cut
± 0.02
± 0.05
± 0.1
SC - cut
± 0.01
± 0.01
± 0.03
+5 V
+5.0V ± 0.2V , " 5 "
10.0 ~ 100.0 MHz
± 0.5 ppm ( max.)
Vcon = +2.5 V
AT - cut
± 0.02
± 0.05
± 0.1
SC - cut
± 0.01
± 0.01
± 0.03
Type of Crystal Cut Used
Output Wave From
Supply Voltage
Supply Voltage range , " Voltage code "
Frequency Range
Initial Calibration Tolerance
vs Temperature ( ppm )
0 ~ 60 °C
-20 ~ 70°C
Frequency
Stability
-40 ~ 85°C
vs Warm -up time (+25°C)
vs Aging
vs Voltage Change
vs Load Change
Voltage Control
Freq. Deviation Range
Control Voltage Range
Transfer Function
( Electronic
Freq. Tuning )
Power
Input Impedance
EFC Linearity
AT - cut : 3.0 minutes ( max.) , within ± 0.5 ppm of its reference frequency .
SC - cut : 1.0 minutes ( max.) , within ± 0.1 ppm of its reference frequency .
AT - cut : ± 5.0 ppb ( max.) / day , ± 0.5 ppm ( max.) / first year , ± 3.0 ppm ( max.) over 10 years .
SC - cut : ± 2.0 ppb ( max.) / day , ± 0.1 ppm ( max.) / first year , ± 0.5 ppm ( max.) over 10 years .
≦ ±20
ppb , supply voltage ±5 % variation
≦ ±20
ppb , for a ±5 % load condition change .
AT - cut : ± 5.0ppm (min.) , ± 20ppm (max.) Reference to fo at +25°C and over operating temperature range .
SC - cut : ± 0.5ppm (min.) , ± 2.0ppm (max.) Reference to fo at +25°C and over operating temperature range .
2.5 V ± 2.0 V
Positive : Increasing control voltage increases output frequency .
100 K ohms ( min.)
± 10 % ( max.)
200 mA (max.) at steady-state ; 500 mA (max.) at turn-on
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15 pF HCMOS ( max.)
+4.5 V ( min.)
+ 0.5 V ( max.)
50 % ± 10%
5 nS ( max.) ( measured at 20%
→
80% of waveform )
+ 4.0 VD.C. ± 0.3 VD.C. or custom
Crystal Type
Offset
AT - cut
SC - cut
1 HZ
10 Hz
100 Hz
1 KHz
10 KHz
Offset
AT - cut
1 HZ
10 Hz
100 Hz
1 KHz
10 KHz
SC - cut
Crystal Type
Offset
AT - cut
1 HZ
10 Hz
100 Hz
1 KHz
10 KHz
SC - cut
Crystal Type
Offset
AT - cut
1 HZ
10 Hz
100 Hz
1 KHz
10 KHz
SC - cut
Crystal Type
On pin 1 (EFC)
Power Dissipation ( at +25°C )
Output Level ( for True Sine )
Harmonic ( for True Sine )
Spurious ( for True Sine )
Load ( Fan out )
Output Logic High ( V
OH
)
Output Logic Low ( V
OL
)
Duty Cycle ( at 50% Vcc )
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+3 dBm ( typ.) , +8 dBm ( max.) into 50Ω load .
-30 dBc ( min.)
-75 dBc ( min.)
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Output
Rise and Fall Time ( 20% ~ 80%)
Reference Voltage
Phase Noise ( 10.0 MHz )
[ Unit : dBc / Hz ] ( typical )
-75
-100
-130
-140
-150
-85
-120
-140
-145
-150
-75
-100
-130
-140
-150
-85
-120
-140
-145
-150
-75
-100
-130
-140
-150
-85
-120
-140
-145
-150
-75
-100
-130
-140
-150
-85
-120
-140
-145
-150
Storage Temperature
Shock
Vibration
- 55°C to + 125°C
2000 G's , 0.3 ms 1/2 sine
10 to 2000 Hz / 10 G's
Mercury
www .mercury-crystal.com
■Taiwan
: Tel (886)-2-2406-2779 / sales-tw@mercury-crystal.com
■U.S.A:
Tel: (1)-909-466-0427 / sales-us@mercury-crystal.com
■China:
Tel: (86)-512-5763-8100 / sales-cn@mecxtal.com
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
