ICS889874 Datasheet, PDF (5/14 Pages) Integrated Circuit Systems – DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS889874
1:2
DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER
TABLE 4D. LVPECL DC CHARACTERISTICS, V_CC = 3.3V±10% OR 2.5V±5%; TA = -40°C TO 85°C
Symbol Parameter
Conditions
Minimum Typical
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_CC - 1.005
V_CC - 1.78
V_OUT
Output Voltage Swing
800
V_{DIFF_OUT} Differential Output Voltage Swing
Input and output parameters vary 1:1 with V . V can vary +0.925V to -0.5V.
CC EE
NOTE 1: Outputs terminated with 50Ω to V_CC - 2V.
1.60
Maximum
Units
mV
mV
mV
V
TABLE
5.
AC
CHARACTERISTICS,
V
CC
=
3.3V±10%
OR
2.5V±5%;
TA
=
-40°C
TO
85°C
Symbol Parameter
Condition
Minimum Typical Maximum
Maximum Output Frequency
f_MAX
Maximum Input Frequency
Output Swing ≥ 450mV
2
÷ 2, ÷4, ÷8, ÷16
2
t_PD
Propagation Delay, (Differential);
NOTE 1
Input Swing: < 400mV
Input Swing: ≥ 400mV
725
725
tsk(o) Output Skew; NOTE 2, 4
5
tsk(pp) Part-to-Part Skew; NOTE 3, 4
TBD
tjit
Additive Phase Jitter, RMS;
refer to Additive Phase Jitter section
<0.03
t_RR
Reset Recovery Time
t_R/t_F
Output Rise/Fall Time
20% to 80%
TBD
180
t_S
Clock Enable Setup Time EN to IN, nIN
TBD
t_H
Clock Enable Hold Time EN to IN, nIN
TBD
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
GHz
ps
ps
ps
ps
ps
ps
ps
ps
ps
889874AK
www.icst.com/products/hiperclocks.html
5
REV. A MAY 19, 2004