|
Model |
HCD220AT |
|
Frequency |
4
to 16MHz |
| Crystal
Type |
AT
cut, 3rd overtone |
|
Output |
Sine,
0.25 to 1Vrms ( +1dBm to +13dBm±1) into 50Ù |
|
Frequency Ageing Rate per
day, at despatch
|
<±1x10-9 |
|
Projected Ageing Rate per year |
<±1x10-7 |
|
Operating Temperature Range |
Standard
-20 to +70oC, options from –40 to +80oC |
|
Temperature Stability |
<1x10-8
over standard operating temperature range |
|
Stability With Supply Voltage |
<3x10-9
for 10% change |
| Stability
With Load Change |
<1x10-9
for 50% change from 50ohms |
| Short
Term Stability
(1sec) |
<5x10-11 |
| Phase
Noise |
Offset |
Typical values |
| (data for 10MHz
quoted) |
10Hz |
-120dBc/Hz |
|
100Hz |
-130 |
|
1kHz |
-150 |
|
10kHz |
-155 |
|
Warm-Up Error |
±
2x10-8 of final frequency after 12mins at +25oC |
| Frequency
Adjustment |
Mechanical: 1x10-6
|
|
Electrical:
1x10-6, +0.5 to +7.0V. Output reference voltage provided. |
|
Power Supply |
12 and 24V standard options,
other options from 12-30V possible
|
|
Power Consumption |
5W maximum at switch on
|
|
2.0W
when stabilised at +25oC |
| Harmonics |
2nd
<-30dB wrt carrier |
|
Dimensions (max) |
70mm
long |
|
50mm
wide |
|
40mm
high |
| External
Connections |
Standard
option has D9 for power, control and RF output |
|
RF
output via SMA/B/C an option |
|
Straight
or right angle PCB header in place of D9 an option |
|
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 |
|
|
| Also
available with SC crystals for higher performance, see model HCD220SC |
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