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PRL-256
Specifications
|
| (0° C
≤ TA
≤ 35° C)*
|
|
Symbol |
Parameter |
PRL-255N |
Unit |
Comments |
|
Min |
Typ |
Max |
|
RIN |
Input Resistance |
49.5 |
50 |
50.5 |
Ω
|
|
|
VTT |
D Input Termination Voltage (fixed) |
-2.2 |
-2 |
-1.8 |
V |
CLK input |
|
VT |
D
Input
Termination Voltage (variable) |
-1.17/
-2.2 |
-1.3/
-2 |
-1.43/
-1.8 |
V |
CLK input |
|
VIL |
Input Lo Voltage |
-1.95 |
-1.6 |
-1.48 |
V |
|
|
VIH |
Input Hi Voltage |
-1.13 |
-0.9 |
-0.81 |
V |
|
|
SW VIN |
Sinewave Input p-p |
30 |
50 |
500 |
mV |
|
|
VOL |
Output Lo Voltage |
-1.95 |
-1.7 |
-1.48 |
V |
|
|
VOH |
Output Hi Voltage |
-1.13 |
-0.9 |
-0.81 |
V |
|
|
IDC |
DC Input Current |
-375 |
-350 |
|
mA |
|
|
VDC |
DC Input Voltage |
-12 |
-8.5 |
-7.5 |
V |
|
|
VAC |
AC/DC Adapter Input Voltage |
103 |
115 |
127 |
V |
|
|
tPLH |
Propagation Delay to output ↑
|
|
2500 |
|
ps |
|
|
tPHL |
Propagation Delay to output ↓
|
|
2500 |
|
ps |
|
|
tr/tf |
Rise/Fall Times (20%-80%) |
|
200 |
300 |
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 |
|
tSKEW |
Skew between any two outputs |
|
40 |
|
ps |
|
|
FMAX |
Max clock frequency |
2.0 |
2.5 |
|
GHz |
Note (3) |
| |
Size |
1.3 x 2.9 x 2.9 |
in. |
|
| |
Weight, excl. AC adapter |
5 |
Oz. |
|
| |
Shipping weight, incl. AC adapter |
3 |
lb. |
|
|
* All measurements are made with outputs terminated into 50 Ω/VTT.
Notes:
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.
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