|
Features
- Frequencies from 25 MHz to 400 MHz
- Size Reduced, PC Board Mount Design
- Low Phase Noise Option
- AT and SC/IT Cut Crystal
- SMA connector available
- Low G-Sensitivity option
|
|
| VHF OCXO |
CO-724 SERIES |
CO-724S SERIES |
|
Frequency |
25-400 MHz range |
Temperature
Stability
(Temp. Range A)
+15°C to +35°C
|
CO-724A38: ±3x10-8
CO-724A18: ±1x10-8*
|
CO-724SA18: ±1x10-8
CO-724SA39: ±3x10-9*
|
(Temp. Range B)
0°C to +50°C
|
CO-724B58: ±5x10-8
CO-724B28: ±2x10-8*
|
CO-724SB28: ±2x10-8
CO-724SB59: ±5x10-9*
|
(Temp. Range D)
-20°C to +70°C
|
CO-724D17: ±1x10-7
CO-724D58: ±5x10-8*
|
CO-724SD58: ±5x10-8
CO-724SD18: ±1x10-8*
|
(Temp. Range G)
-55°C to +75°C
|
CO-724G37: ±3x10-7
CO-724G17: ±1x10-7*
|
CO-724SG17: ±1x10-7
CO-724SG38: ±3x10-8*
|
(Temp. Range F)
-55°C to +85°C
|
*Not available with L2 option
|
CO-724SF27: ±2x10-7
CO-724SF58: ±5x10-8*
|
|
Aging
|
Standard:
1x10-8/day, (2x10-6/year)
Optional:
5x10-9/day, (1x10-6/year)
|
Standard:
2x10-9/day, (5x10-7/year)
|
|
G-Sensitivity
|
Low G-Sensitivity option available - Contact factory
|
Output
Level
|
Standard: >0.5 Vrms/50
(+7 dBm); +10dBm optional
Optional: HCMOS, TTL (to 70 MHz), ECL (to 400MHz)
|
Supply
Voltage
(±5%)
|
+15 Vdc standard.
Operation from any specified voltage in 12-24 Vdc range optional.
|
Input
Power
|
<4.5 Watts at turn-on (-20°C to +70°C);
<2.5 Watts stabilized at 25°C.
Higher power required beyond -20°C to +70°C,
lower power for 0°C to +50°C
|
Frequency
Adjustment
|
Multi-turn screwsriver adjust. settable to <1x10-8
Option "V" - electronic tuning: 0.5ppm over 0/6V in CO-724 Series.
0.2ppm over 0/6V in CO-724S Series.
|
|
Size
|
<150 MHz: 2" x 2" x 1". > 150MHz: 2" x 2" x 1.25"
|
|
Configuration
|
Pins for pcb mounting.
Option "W" for SMA connector and terminals on side,
studs on base.
|
Phase Noise
724S
(typical static conditions,
sine output in
75-125 MHz range)
|
|
Offset |
Standard |
Option (L2) ** |
|
100 Hz |
-115 dBc/Hz |
-130 dBc/Hz |
|
1kHz |
-130 dBc/Hz |
-145 dBc/Hz |
|
50 kHz |
-145 dBc/Hz |
-157 dBc/Hz |
|
** available to 200 MHz |
|
|
|
VHF OCXO
|
CO-725 SERIES |
CO-725S SERIES |
|
Frequency |
25-200 MHz range
|
Temperature
Stability
(Temp. Range A)
+15°C to +35°C
|
CO-725A38: ±3x10-8
CO-725A29: ±2x10-9
|
CO-725SA18: ±1x10-8
CO-725SA19: ±1x10-9
|
(Temp. Range B)
0°C to +50°C
|
CO-725B58: ±5x10-8
CO-725B59: ±5x10-9
|
CO-725SB28: ±2x10-8
CO-725SB29: ±2x10-9
|
(Temp. Range D)
-20°C to +70°C
|
CO-725D17: ±1x10-7
CO-725D28: ±2x10-8
|
CO-725SD58: ±5x10-8
CO-725SD59: ±5x10-9
|
(Temp. Range G)
-55°C to +75°C
|
CO-725G37: ±3x10-7
CO-725G38: ±3x10-8*
|
CO-725SG17: ±1x10-7
CO-725SG28: ±2x10-8*
|
(Temp. Range F)
-55°C to +85°C
|
*Not available with L2 option
|
CO-725SF27: ±2x10-7*
CO-725SF38: ±3x10-8*
|
|
Aging
|
Standard:
1x10-9/day, (3x10-7/year)
|
**Standard:
5x10-10/day, (1x10-7/year)
**Optional:
1x10-10/day, to 150 MHz
|
Output
Level
|
Standard: >0.5 Vrms/50
(+7 dBm)
Optional: >1 Vrms/50
(+13dBm) to 125 MHz, ECL (to 200MHz)
|
Supply
Voltage
(±5%)
|
+15 Vdc standard.
Operation from any specified voltage in 12-24 Vdc range optional.
|
Input
Power
|
<4.5 Watts at turn-on (-20°C to +70°C)
<2.5 Watts stabilized at 25°C.
Higher power required beyond -20°C to +70°C,
lower power for 0°C to +50°C;
|
Frequency
Adjustment
|
Mechanical adjustment settable to <1x10-8
Option "V" - electronic tuning: 0.3ppm over 0/6V in CO-725 Series.
0.1ppm over 0/6V in CO-725S Series.
|
|
Size
|
2" x 2" x 1.25" (51 x 51 x 32mm)
|
|
Configuration |
Pins for pcb mounting.
Option "W" for SMA connector and terminals on side,
studs on base.
|
Phase Noise
725S
(typical static conditions,
sine output in
75-125 MHz range)
|
|
Offset |
Standard |
Option (L2) |
|
100 Hz |
-105 dBc/Hz |
-120 dBc/Hz |
|
1kHz |
-115 dBc/Hz |
-135 dBc/Hz |
|
50 Hz |
-125 dBc/Hz |
-140 dBc/Hz |
|
|
|
CO-724, CO-724S, CO-725, CO-725S,
CO-725L2, CO-725SL2
Dimensions in inches
|
Pinouts
|
Pin
*1
**2
3
4
5
|
Function
VCXO Input
N/C
RF Output
0 Volts, Case
Supply (+)
|
|
*Only with electronic tuning option; otherwise, pin is No Connection.
For fine tuning adjustment with the "V" option, connect one end of
a 20k wirewound
potentiometer to a stable reference voltage, the other end to 0V, Case and wiper
arm to VCXO input.
**-5.2Vdc input for ECL logic output option.
|
|
CO724L2 (L2 only), CO-724SL2 (SL2 only)
(to 200 MHz)
Dimensions in inches
|
Pinouts |
Pin
*1
2
3
4
5
|
Function
VCXO Input
N/C
RF Output
0 Volts, Case
Supply (+)
|
|
*Only with electronic tuning option; otherwise, pin is No Connection.
For fine tuning adjustment with the "V" option, connect one end of
a 20k wirewound
potentiometer to a stable reference voltage, the other end to 0V, Case and wiper
arm to VCXO input.
|
|
