ICS843002I Datasheet, PDF (5/16 Pages) Integrated Circuit Systems – FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843002I
FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V
LVPECL FREQUENCY SYNTHESIZER
TABLE 5B. AC CHARACTERISTICS, V_CC = V_CCA = V_CCO = 2.5V±5%, TA = -40°C TO 85°C
Symbol Parameter
Test Conditions
Minimum Typical
F_SEL[1:0] = 00
186.67
f_OUT
Output Frequency
F_SEL[1:0] = 01
F_SEL[1:0] = 10
140
93.33
F_SEL[1:0] =11
46.67
tsk(o) Output Skew; NOTE 1, 2
212.5MHz, (2.55MHz - 20MHz)
0.50
tjit(Ø)
RMS Phase Jitter (Random);
NOTE 3
159.375MHz, (1.875MHz - 20MHz)
106.25MHz, (637kHz - 5MHz)
0.55
0.75
53.125MHz, (637kHz - 5MHz)
0.76
t_R / t_F
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
350
F_SEL[1:0] ≠ 00
49
F_SEL[1:0] = 00
43
NOTE 1: Defined as skew between outputs at the same supply voltages and with equal load conditions.
Measured at the output differential cross points.
NOTE 2: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 3: Measured using crystal input.
Maximum
226.67
170
113.33
56.67
30
650
51
57
Units
MHz
MHz
MHz
MHz
ps
ps
ps
ps
ps
ps
%
%
843002AGI
www.icst.com/products/hiperclocks.html
5
REV. A JANUARY 4, 2006