|
Model |
HCD185R |
|
Frequency |
50 to
125MHz |
Crystal Type |
AT cut,
typically 5th or 7th overtone |
| Output |
Sine, 0.25V rms
( +1dBm±1) into 50ê , standard |
|
0.5V RMS
(+7dBm ±1) into 50ê , optional |
|
Frequency Ageing Rate per
day, at despatch
|
<±1x10-8 |
|
Projected Ageing Rate per year |
1.0x10-6 |
|
Operating Temperature Range |
Standard
-20 to +60oC |
|
Temperature Stability |
<2.5x10-8
over operating temperature range |
|
Stability With Supply Voltage |
<1x10-8
for 10% change |
| Stability With Load Change |
<1x10-8
for 50% change from 50ohms |
| Short Term Stability
(1sec) |
<1x10-9 |
| Phase Noise |
Offset |
Typical values |
| (data for 10MHz
quoted) |
10Hz |
-80dBc/Hz |
|
100Hz |
-110 |
|
1kHz |
-130 |
|
Warm-Up Error |
± 2x10-7
of final frequency after 20mins at +25oC |
Frequency Adjustment |
Mechanical: 5x10-6 |
|
Electrical:
1x10-6 |
|
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) |
76mm long |
|
51mm wide |
|
51mm high |
|
External Connections |
Standard
option has D9 + SMA RF output. Other options available |
|
Storage Temperature |
-40 to
+90oC |
|
|
| Other
chassis mount oscillators available for frequencies in range 4 to 26MHz
with AT or SC crystals. |
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