PL138-28 Datasheet, PDF (6/11 Pages) Micrel Semiconductor – 2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer

PL138-28
2.5V-3.3V Low-Skew 1-2 Differential PECL Fanout Buffer
PARAMETER MEASUREMENT INFORMATION
Output Waveform Test Circuit:
+2.0V
V_CC
LVPECL
V_EE
50 Ω Line
50 Ω Line
OSCILLOSCOPE
50 Ω
Channel
50 Ω
Channel
Differential Input Level:
V_CC
CLK-INxB
V _PP
CLK-INx
V_EE
Cross Points
-1.80V to -0.375V
V _CMR
Part-to-Part Skew:
QBx
Part 1
Qx
QBy
Part 2
Qy
tsk(pp)
Output Skew:
QBx
Qx
QBy
Qy
tsk(o)
Output Rise/Fall Time:
Qx
80%
QBx
20%
t_R
80%
20%
t_F
Propagation Delay:
CLK-INxB
CLK-INx
QBy
Qy
t _PD
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax [phone] • www.micrel.com Rev 11/26/13 Page 6