ICS87973I-147 Datasheet, PDF (8/19 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-12 LVCMOS / LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER

ICS87973I-147
LOW SKEW, 1-TO-12, LVCMOS/LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER
Table 5. Input Frequency Characteristics, V_DD = V_DDA = V_DDO = 3.3V ± 5%, T_A = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum Typical
CLK0, CLK1; NOTE 1
F_IN
Input Frequency
FRZ_CLK
Maximum
120
20
Units
MHz
MHz
NOTE 1: Input frequency depends on the feedback divide ratio to ensure "clock * feedback divide" is in the VCO range of 240MHz to
500MHz.
AC Electrical Characteristics
Table 6. AC Characteristics, V_DD = V_DDA = V_DDO = 3.3V ± 5%, T_A = -40°C to 85°C
Symbol Parameter
Test Conditions
Minimum
÷2
÷4
f_MAX
Output Frequency
÷6
÷8
CLK0
t(Ø)
Static Phase Offset;
NOTE 1
CLK1
QFB ÷ 8,
In Frequency = 50MHz
CLK, nCLK
-10
-65
-130
tsk(o)
Output Skew; NOTE 2, 3
tjit(cc)
Cycle-to-Cycle Jitter; NOTE 3
All Banks ÷ 4
f_VCO
t_LOCK
t_R / t_F
odc
PLL VCO Lock Range
PLL Lock Time; NOTE 4
Output Rise/Fall Time
Output Duty Cycle
240
0.8V to 2V
150
45
t_PZL, t_PZH Output Enable Time; NOTE 4
t_PLZL, t_PHZ Output Disable Time; NOTE 4
Typical
145
90
18
Maximum
150
125
83.33
62.5
300
245
165
200
55
500
10
700
55
10
8
Units
MHz
MHz
MHz
MHz
ps
ps
ps
ps
ps
MHz
ms
ps
%
ns
ns
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the
device is mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after
thermal equilibrium has been reached under these conditions.
NOTE 1: Defined as the time difference between the input reference clock and the average feedback input signal when the PLL is locked
and the input reference frequency is stable.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at V_DDO/2.
NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 4: These parameters are guaranteed by characterization. Not tested in production.
IDT™ / ICS™ LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER
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ICS87973DYI-147 REV. A DECEMBER 9, 2008