ICS889831 Datasheet, PDF (5/18 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-4 DIFFERENTIAL LVPECL-TO-LVPECL/ECL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
ICS889831
LOW SKEW, 1-TO-4
DIFFERENTIAL LVPECL-TO-LVPECL/ECL FANOUT BUFFER
TABLE 4D. LVPECL DC CHARACTERISTICS, V_CC = 2.375V TO 3.465V; V_EE = 0V
Symbol Parameter
Conditions
Minimum
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_OUT
Output Voltage Swing
V_{DIFF_OUT} Differential Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to V_CC - 2V.
V_CC - 1.125
V_CC - 1.895
0.6
1.2
Typical
V_CC - 1.005
V_CC - 1.78
Maximum
V_CC - 0.935
V_CC - 1.67
1.0
2.0
Units
V
V
V
V
TABLE 5. AC CHARACTERISTICS, V_CC = 0V; V_EE = -3.3V ± 5%, -2.5V ± 5% OR V_CC = 2.5 ± 5%, 3.3V ± 5%; V_EE = 0V
Symbol Parameter
Condition
Minimum Typical Maximum
f_MAX
Maximum Output Frequency
t_PD
Propagation Delay; (Differential);
NOTE 1
Output Swing ≥ 450mV
2.1
Input Swing: 100mV
300
435
570
Input Swing: 800mV
255
370
485
tsk(o) Output Skew; NOTE 2, 4
30
tsk(pp)
tjit
Part-to-Part Skew; NOTE 3, 4
Buffer Additive Phase Jitter, RMS;
refer to Additive Phase Jitter section
155.52MHz, Integration
Range: 12kHz - 20MHz
185
0.27
t_R/t_F
Output Rise/Fall Time
20% to 80%
100
250
t_S
Clock Enable Setup Time EN to IN, nIN
300
t_H
Clock Enable Hold Time EN to IN, nIN
300
All parameters characterized at ≤ 1GHz unless otherwise noted.
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output differential cross points.
NOTE 3: 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.
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.
Units
GHz
ps
ps
ps
ps
ps
ps
ps
ps
889831AK
www.icst.com/products/hiperclocks.html
5
REV. A JUNE 16, 2005