|
Model |
HCD81 |
|
Frequency |
4 to 16MHz |
|
Output |
74 HC type high speed CMOS, TTL
compatible |
|
Frequency Ageing Rate per
day, at despatch
|
1x10-8 (5x10-9
version available, see HCD180) |
|
Projected Ageing Rate per year |
<7.5x10-7 |
|
Operating Temperature Range |
Standard -20 to +60oC |
|
Temperature Stability |
<2x10-7 over -20oC
to +60oC (5x10-8 available, see HCD180) |
|
Stability With Supply Voltage |
<1x10-7 for 5%
change in oven supply or 1% change in oscillator supply, frequency
control voltage constant |
| Phase Noise |
Offset |
Typical values |
| (data for 10MHz
quoted) |
10Hz |
<-110dBc/Hz |
|
100Hz |
<-130 |
|
1kHz |
<-145 |
|
50kHz |
<-150 |
|
10kHz |
<-150 |
|
Warm-Up Error |
± 5x10-8 of final
frequency after 10mins at +25oC |
|
Frequency Adjustment (electrical
only), +0.5 to +6.0V, stabilised output provided |
±2x10-5 for applied
voltage 0.5 to 5.0V, sufficient for minimum of 10 years ageing |
|
Power Supply |
Oven supply: 9,10,12,15,20 or
24V DC options
|
|
Oscillator
supply: 4.5 to 5.5V DC |
|
Power Consumption |
4.5W maximum at switch on.
Typically 1.2W when stabilised at |
|
+25oC.
Oscillator 40mA max |
|
Dimensions (max) |
45.5mm long
|
|
36.2mm
wide |
|
15.0mm
high |
|
Shock |
IEC 68-2-27 Test Ea. 50G for
11mS |
|
Vibration |
IEC 68-2-06 Test Fc. 10-55 Hz,
1.5mm
|
|
55-500Hz,
10G |
|
Storage Temperature |
-40 to +90oC |
|
Humidity |
>90% non-condensing, sealed
package |
|
|
| Sine
output version, HCD71, also available. |
| Higher
performace version of HCD81, the HCD180, also available with same size
package and pin-out. |
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