PULSE DISTRIBUTION AMPLIFIER
The PD-100i is a high speed pulse signal distribution amplifier that provides distribution for 1 PPS signals and RF signals with a frequency range of 1-100 MHz. This distribution module has the low temperature coefficient of propagation delay that is essential for the distribution of high quality timing signals. Six copies of the 1PPS input signal are distributed by the first module and all outputs are designed to drive low impedance loads and long 50 or 75 ohm cables. The second module of the instrument receives a 1-100 MHz RF signals and provides six buffered SQUARE WAVE outputs with excellent isolation and exceptionally low additive phase noise. All outputs are DC coupled and conform to TTL specifications.
- Features
- Applications
- Specifications
- PPS FEATURES:
- Distribution of 1PPS - 100 MHz
- 50 ohm output: 3.8 Vp-p
- Low temperature coefficient: 3 ps/ºC
- PPS Propagation Delay: 7ns typical
- RF FEATURES:
- 1 - 100 MHz
- Square wave digital outputs
- High isolation: 110 dB
- Low phase noise: -148 dBc/Hz @ 1 Hz
- -170 dBc/Hz @ 10 kHz
- Low temperature coefficient: 3 ps/ºC
- Clock signal applications
- Atomic frequency standards
- Laboratory frequency distribution
- Reference frequency distribution
- Time synchronization
PPS Distribution Module
|
PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
|
Rise time |
10 - 90 % |
- |
0.9 |
1 |
ns |
|
Fall time |
10 - 90 % |
- |
0.9 |
1 |
ns |
|
Propagation delay |
50 ohm load |
- |
7 |
8 |
ns |
|
Differential delay |
channel - channel |
- |
100 |
200 |
ps |
|
Impedance |
Input Output |
- - |
50 9 |
- - |
Ohms |
|
Input high level Input low level |
input signal into 50 Ω load input signal into 50 Ω load |
3.7 0 |
3.8 - |
5 0.8 |
V |
|
Output high level Output low level |
50 ohm load 50 ohm load |
3.7 - |
3.8 0.4 |
5 0.5 |
V |
|
Temp-delay coefficient |
0 - 50 ºC |
- |
3 |
5 |
ps/ºC |
RF / Clock Distribution Module
|
PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
|
Input Level |
|
7 |
13 |
20 |
dBm |
|
Bandwidth |
|
- |
1-100 |
- |
MHz |
|
Impedance |
output |
- |
9 |
- |
Ohms |
|
Rise Time |
+13 dBm |
- |
0.9 |
1 |
ns |
|
Fall Time |
+13 dBm |
- |
0.9 |
1 |
ns |
|
Isolation |
output to output |
100 |
110 |
- |
dB |
|
Phase Noise |
1 Hz 10 Hz 100 Hz >10 kHz |
- - - - |
-148 -163 -168 -170 |
-145 -160 -165 -167 |
dBc/Hz |
|
Temp-delay Coefficient |
0 - 50 ºC |
- |
3 |
- |
ps/ºC |