
HIGH PERFORMANCE DISTRIBUTION AMPLIFIER, 1-50 MHz
The HPDA-15RMi is a High Performance Distribution and Isolation Amplifier with performance exceeding that required to distribute state-of-the-art atomic frequency standards. This model offers exceptionally low additive phase noise and has a frequency bandwidth of 1 MHz to 50 MHz. This amplifier may be used in time scale applications where phase stability is of paramount importance.
The inputs and outputs have a low VSWR to minimize environmental effects on frequency distribution through long transmission lines. All the outputs power levels are monitored and compared to a preset threshold of +7dBm.
The HPDA-15RMi-C model has also an open collector alarm signal that is available through the DC connector on the back panel.
All HPDA-15RMi are designed to be powered by a 100 to 240 VAC mains source. The "C" model may also be powered by a +12 to +36 VDC power source.
All HPDA-15RMi are available in a 1U high, 19” rack-mount enclosure.





- Features
- Applications
- Specifications
- Options
- 1 - 50 MHz
- Unity gain
- Low VSWR
- High isolation: 140 dB
- High output: +18 dBm
- Low distortion: -48 dBc
- Low temp. coefficient: 1.2 ps/ºC
- Low phase noise:
-155 dBc/Hz @ 1 Hz
-171 dBc/Hz @ 10 kHz - Specifications shown are valid for Part Numbers:
HPDA-15RMi-A, HPDA-15RMi-B, HPDA-15RMi-B2, HPDA-15RMi-C and HPDA-15RMi-C2.
- Atomic frequency standards
- Atomic time scales
- High performance testing facilities
- Laboratory frequency distribution
- Reference frequency distribution
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HPDA-15RMi-C HPDA-15RMi-C2 |
HPDA-15RMi-C1 HPDA-15RMi-C3 |
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PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
MIN |
TYP |
MAX |
UNITS |
Input power level |
1 dB Comp. |
17 |
18 |
- |
17 |
18 |
- |
dBm |
Bandwidth |
+/- 1 dB |
|
1 - 50 |
- |
|
1 - 50 |
- |
MHz |
Gain |
@ 10 MHz |
0 |
0.2 |
0.5 |
0 |
0.2 |
0.5 |
dB |
Impedance |
Input Output |
- - |
50 50 |
- - |
- - |
50 50 |
- - |
Ohms |
Return loss |
Input (S11) Output (S22) |
- - |
-35 -35 |
-30 -30 |
- - |
-35 -35 |
-30 -30 |
dB |
Distortion |
+13 dBm +17 dBm |
- - |
-48 -42 |
-45 -40 |
- - |
-45 -42 |
-40 -40 |
dBc |
Isolation |
Out to Out Out to In |
130 140 |
140 145 |
- - |
130 140 |
140 145 |
- - |
dB |
Phase noise |
1 Hz 10 Hz 1 kHz 10 kHz |
- - - - |
-155 -165 -170 -171 |
-150 -160 -168 -170 |
- - - - |
-150 -160 -169 -169 |
-147 -157 -167 -167 |
dBc/Hz |
Temperature Delay |
0 - 50 ºC |
- |
1.2 |
1.5
|
- |
1.2 |
1.5
|
ps/ºC |
Product Name | No. of Inputs | No. of Outputs | AC Operation | DC Operation |
---|---|---|---|---|
HPDA-5i | 1 | 5 | √ | |
HPDA-15RMi-A | 1 | 5 | √ | Optional |
HPDA-15RMi-B | 3 | 15 | √ | |
HPDA-15RMi-B1 | 1 | 10 | √ | |
HPDA-15RMi-B2 | 2 | 10 | √ | |
HPDA-15RMi-B3 | 1 | 15 | √ | |
HPDA-15RMi-C | 3 | 15 | √ | √ |
HPDA-15RMi-C1 | 1 | 10 | √ | √ |
HPDA-15RMi-C2 | 2 | 10 | √ | √ |
HPDA-15RMi-C3 | 1 | 15 | √ | √ |