CLOCK SIGNAL DISTRIBUTION AMPLIFIER
The CSDA-1 is a high performance clock signal distribution and isolation amplifier. The device is used to provide distribution of 1 PPS, 5 MHz and 10 MHz signals. The CSDA-1 is a modular unit implemented with customizable functionality with different options. The pulse distribution modules can drive 50-ohm cables. The phase noise of the RF distribution modules is exceptionally low with excellent channel-to-channel isolation. Each module contains an output level monitor LED located on the front panel. Inputs and outputs are matched to 50 ohms to obtain better than 25 dB return loss. All RF outputs are AC coupled and the grounds are DC isolated to reduce the effect of ground loops.
All options include AC and DC operation.
- Features
- Applications
- Specifications
- Options
- Distributes:
- 1 PPS, 5 MHz & 10 MHz signals
- High Isolation
- Low phase noise
- Very good stability
- Signal fault alarm
- AC and DC voltage operation
- Clock signal applications
- Atomic frequency standards
- Atomic time scales
- Laboratory frequency distribution
- Reference frequency distribution
- Time synchronization
Pulse Distribution Module
|
PARAMETER |
CONDITIONS |
TYP |
UNITS |
|
Rise time |
10 - 90 % |
0.8 |
ns |
|
Fall time |
10 - 90 % |
0.8 |
ns |
|
Propagation delay |
50 ohm load |
7 |
ns |
|
Differential delay |
Channel - Channel |
100 |
ps |
|
Input High Level Input Low Level |
Input signal into 50 Ω load Input signal into 50 Ω load |
2 – 5 -0.7 – 0.8 |
V
|
|
Frequency range |
50% duty cycle |
100 |
MHz |
|
Temp-delay coefficient |
0 - 50 ºC |
3 |
ps/ºC |
|
Pulse Distribution Amplifiers are manufactured with 50 ohm input impedance and 10 ohm output impedance |
|||
|
Impedance |
Input Output |
50 10 |
Ω |
|
Output High Level Output Low Level |
50 Ω load, 10 Ω output 50 Ω load, 10 Ω output |
4.3 0.1 |
V
|
|
The following specifications are for the 50 ohm input and output impedance option. To select this option, please add "-Opt 50/50" to your order. |
|||
|
Impedance |
Input Output |
50 50 |
Ω |
|
Output High Level Output Low Level |
50 Ω load, 50 Ω output 50 Ω load, 50 Ω output |
2.6 0.1 |
V
|
5 MHz Distribution Module
|
PARAMETER |
CONDITIONS |
TYP |
UNITS |
|
Max Input Level |
1 dB compression |
17 |
dBm |
|
Bandwidth |
+/- 1 dB (Due to X2) |
0.6 |
MHz |
|
Gain |
@ 5 MHz |
0.5 |
dB |
|
Impedance |
Input Output |
50 50 |
Ω |
|
Return Loss |
Input (S11) Output(S22) |
-27 -30 |
dB |
|
Distortion |
+13 dBm |
-45 |
dBc |
|
Isolation |
Output to output Output to input |
130 140 |
dB |
|
Phase Noise |
1 Hz 10 Hz 100 Hz >10 kHz |
-150 -160 -170 -170 |
dBc/Hz |
|
Temp-delay Coefficient |
0 - 50 ºC |
1.5 |
ps/ºC |
10 MHz Distribution Module
|
PARAMETER |
CONDITIONS |
TYP |
UNITS |
|
Output Power Level |
5 MHz input +13 dBm |
14 |
dBm |
|
Bandwidth |
+/- 1 dB |
0.6 |
MHz |
|
Impedance |
output |
50 |
Ω |
|
Return loss |
output (S22) 10 MHz |
-25 |
dB |
|
Distortion |
+13 dBm |
-45 |
dBc |
|
Isolation |
output to output |
130 |
dB |
|
Phase noise Referred to 5 MHz input |
1 Hz 10 Hz 100 Hz >10 kHz |
-148 -158 -165 -170 |
dBc/Hz |
|
Temp-delay coefficient |
0 - 50 ºC |
5 |
ps/ºC |
| Product Name | Description |
|---|---|
| CSDA-1 |
Module 1 = 1PPS Input – Five Buffered Outputs |
| CSDA-1A |
Module 1 = 1PPS Input – Five Buffered Outputs |
| CSDA-1B |
Module 1 = 1PPS Input – Five Buffered Outputs |
| CSDA-1C |
Module 1 = 1PPS Input – Five Buffered Outputs |
| CSDA-1D |
Module 1 = 1PPS Input – Five Buffered Outputs |
| CSDA-1E |
Module 1 = 1PPS Input – Five Buffered Outputs |