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ICS840271I Datasheet, PDF (5/13 Pages) Integrated Device Technology – SYNCHRONOUS ETHERNET FREQUENCY TRANSLATOR
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ICS840271I
SYNCHRONOUS ETHERNET FREQUENCY TRANSLATOR
AC Electrical Characteristics
Table 5A. AC Characteristics, VDD = 3.3V±5%, TA = -40°C to 85°C
Symbol
Parameter
Test Conditions
fOUT
tjit(cc))
Output Frequency
Cycle-to-Cycle Jitter
SEL0 ≠ SEL1
SEL0 = SEL1 = 1
tLOCK
PLL Lock Time
SEL1 = 0, SEL0 = 1
SEL 1 = 1, SEL0 = X
tR / tF
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
Minimum
200
47
Typical
25
Maximum
40
15
1
50
700
53
Units
MHz
ps
ps
s
ms
ps
%
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.
Table 5B. AC Characteristics, VDD = 2.5V±5%, TA = -40°C to 85°C
Symbol
Parameter
Test Conditions
fOUT
tjit(cc))
Output Frequency
Cycle-to-Cycle Jitter
SEL0 ≠ SEL1
SEL0 = SEL1 = 1
tLOCK
PLL Lock Time
SEL1 = 0, SEL0 = 1
SEL 1 = 1, SEL0 = X
tR / tF
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
Minimum
200
47
Typical
25
Maximum
50
15
1
50
700
53
Units
MHz
ps
ps
s
ms
ps
%
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.
IDT™ / ICS™ SYNCHRONOUS ETHERNET FREQUENCY TRANSLATOR
5
ICS840271BGI REV. A APRIL 23, 2009
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