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PRL-257
Specifications
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| (0° C
≤ TA
≤ 35° C)*
|
|
Symbol |
Parameter |
PRL-255N |
Unit |
Comments |
|
Min |
Typ |
Max |
|
RIN |
Input Resistance |
|
50 |
|
Ω
|
AC Coupled |
|
CC |
Coupling Capacitor |
0.08 |
0.10 |
0.12 |
µf |
Input TC=50 µs |
|
VINmin |
Minimum p-p Input Amplitude |
500
350
100 |
400
250
50 |
|
mV |
Sine Wave@
FMIN In I
Square Wave, tr <2ns
Square Wave, tr <500ps |
|
VINmax |
Maximum p-p Input Amplitude |
|
2 |
1.25 |
V |
Sine or Square Wave |
|
VOL |
Output Lo Voltage @ 100 MHz |
-1.95 |
-1.6 |
-1.48 |
V |
Output terminated to 50 Ω/-2V |
|
VOH |
Output Hi Voltage @ 100 MHz |
-1.13 |
-0.9 |
-0.81 |
V |
Output terminated to 50 Ω/-2V |
|
IDC |
DC Input Current |
|
+80/
-285 |
+100/
-300 |
mA |
|
|
VDC |
DC Input Voltage |
±7.5 |
±8.5 |
±12 |
V |
|
|
VAC |
AC/DC Adapter Input Voltage |
103 |
115 |
127 |
V |
|
|
tPLH |
Propagation Delay to Φ1 output ↑
|
|
2500 |
|
ps |
|
|
tPHL |
Propagation Delay to Φ1 output ↓
|
|
2500 |
|
ps |
|
|
tr/tf |
Rise/Fall Times (20%-80%) |
|
200 |
250 |
ps |
Note (1) |
|
tSKEW1 |
Skew↔ Φ1 or Φ2 outputs |
|
40 |
120 |
ps |
|
|
tSKEW2 |
Skew↔ Φ1 and Φ2 outputs |
|
40 |
120 |
ps |
D0/D1=10, D2/D3=00 |
|
|
Jitter, p-p |
|
5 |
10 |
ps |
Note (2) |
|
FMIN In I |
Minimum Input frequency |
120 |
100 |
|
MHz |
Sine wave input |
|
FMIN In II |
Minimum Input frequency |
150 |
100 |
|
KHz |
Square wave input |
|
FMAX In I |
Maximum Input frequency |
10 |
12 |
12.5 |
GHz |
|
|
FMAX Out |
Maximum Output frequency |
1.25
0.625 |
1.5
0.75 |
1.56
0.78 |
GHz |
Φ1 outputs
Φ2 outputs |
| |
Size |
1.3 x 2.9 x 2.9 |
in. |
|
| |
Weight, excl. AC adapter |
10 |
Oz. |
|
| |
Shipping weight, incl. AC adapter |
3 |
lb. |
|
|
* All measurements are made with outputs terminated into 50 Ω/VTT.
Notes:
(1)
The output rise and fall times are measured with with all inputs terminated into 50 Ω/VTT. For best performance all outputs should be
terminated into 50 Ω/VTT or else AC- coupled into 50 Ω
loads. If a single output is used, its complement must be terminated; otherwise
output waveform distortion will occur. If one pair of complementary outputs is
used, the other complementary pair may remain unterminated.
Use the PRL-550 Series,
four channel ECL/PECL/LVPECL
Terminators, for the 50 Ω/VTT termination and for
connection of ECL/PECL/LVPECL signals to 50 Ω input oscilloscopes. The
PRL-ACT-50, Dual Channel AC-Coupled 50 Ω
Terminator,
may also be used to provide the 50 Ω/VTT
termination. If preservation of DC levels is not required, then the PRL-SC-104, 0.1
µf DC block or the PRL-ACX-12dB, 12 dB AC-coupled attenuator, may be used to connect the NECL/PECL/LVPECL
outputs to 50 Ω input instruments.
(2)
Jitter specification limited by PRL internal test equipment.
Independent testing shows typical jitter
performance of < 1 ps one-sigma RJ.
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