PL138-28 Datasheet, PDF (4/11 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
DC CHARACTERISTICS, VCC = 2.5V; VEE = 0V
Parameter
Output High Voltage*
Output Low Voltage*
Input High Voltage
Input Low Voltage
Peak-to-Peak Input Voltage
Input High Voltage Common Mode
Range^†
Input High
Current
Input Low
CLK-IN0,
CLK-IN1
Current
Symbol
Min
VOH _1.415
VOL _0.670
VIH _1.275
VIL _0.670
VPP ₁₅₀
VCMR 1.2
IIH
IIL
-60
-40°C
Typ
1.520
0.810
800
Max
1.620
0.945
1.620
1.090
1200
2.5
60
Min
1.475
0.690
1.335
0.690
150
1.2
-60
25°C
Typ
1.550
0.785
800
Max
1.620
0.880
1.620
1.025
1200
2.5
60
80°C
Min Typ Max
1.475 1.55 1.620
0.690 0.785 0.880
1.335
1.620
0.690
1.025
150 800 1200
1.2
2.5
60
-60
Units
V
V
V
V
V
V
µA
µA
Input and output parameters vary 1:1 with VCC^. VEE can vary +0.925V to -0.5V.
* Outputs terminated with 50Ω to VCCO – 2V.
** Common mode voltage is defined as ^VIH^.
† For single-ended applications, the maximum input voltage for CLK-INx, CLK-INxB is V_CC + 0.3V
AC Electrical Characteristics
V_CC = -3.8V to -2.375V or, V_CC = 2.375V to 3.8V; V_EE = 0V, T_A = -40°C to 85°C
Parameter
-40°C
25°C
80°C
Symbol
Units
Min Typ Max Min Typ Max Min Typ Max
Output Frequency
f_MAX
700
700
700 MHz
Propagation Delay*
t_PD
600 680 750 650 725 790 690 790 890 ps
Output Skew ** ^†
tsk(o)
25 37
25 37
25 37 ps
Part-to-Part Skew *** ^†
tsk(pp)
85 225
85 225
85 225 ps
Buffer Additive Phase Jitter, RMS; refer
to Additive Phase Jitter Section
t_APJ
0.10
0.10
0.10
ps
Output Rise/Fall Time 20%to80% t_R / t_F 200
700 200
700 200
700 ps
All parameters are measured at f ≤ 1000MHz, unless otherwise noted.
* Measured from the differential input crossing point to the differential output crossing point.
** Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential cross
points.
*** Defined as skew between outputs on different devices operating at the same supply voltages and with equal load conditions. Using the same type of
inputs on each device, the outputs are measured at the differential cross points.
†This parameter is defined in accordance with JEDEC Standard 65.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax [phone] • www.micrel.com Rev 11/26/13 Page 4