|
Model |
HCD660AT |
|
Frequency |
5 & 10MHz, other frequencies
in range 4-16MHz by request |
|
Output |
Sine 0.5V RMS (+7dBm ±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,
other options available |
|
Temperature Stability |
<1.0x10-8 over
operating temperature range |
|
Stability With Supply Voltage |
<3x10-9 for 10%
change |
| Stability With Load Change |
<1.0x10-9
for 10% change from 50ohms (HCD660AT) |
| Short Term Stability
(1sec) |
<5x10-11 |
| Phase Noise |
Offset |
Typical values |
| (data for 10MHz
quoted) |
10Hz |
-120dBc/Hz |
|
100Hz |
-130 |
|
1kHz |
-150 |
|
50kHz |
-155 |
|
10kHz |
- 155 |
|
Warm-Up Error |
±
2x10-8 of final frequency after 12mins at +25oC |
|
Frequency Adjustment,
(electrical only), +0.5 to 7.0V, stabilised +6V output provided |
Sufficient for minimum of 10
years ageing |
|
±1.0ppm
minimum |
|
Power Supply |
12 and 24V standard options,
other options from 12-30V possible
|
|
Power Consumption |
5W maximum at
switch on |
|
1.3W when
stabilised at +25oC |
| Harmonics |
<-30dB
wrt carrier |
|
Dimensions (max) |
51mm
long
|
|
41mm wide |
|
25mm 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 |
|
|
| HCD660
also available with overtone SC crystal, sine or HCMOS output |
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