IDT2308B
3.3 VOLT ZERO DELAY CLOCK MULTIPLIER
CLOCK MULTIPLIER
Switching Characteristics–Commercial
Parameter
Output Frequency
Output Frequency
Output Frequency
Duty Cycle = t2 ÷ t1
(-1, -2, -3, -4, -1H, -2H, -5H)
Duty Cycle = t2 ÷ t1
(-1, -2, -3, -4, -1H, -2H, -5H)
Rise Time (-1, -2, -3, -4)
Rise Time (-1, -2, -3, -4)
Rise Time (-1H, -2H, -5H)
Fall Time (-1, -2, -3, -4)
Fall Time (-1, -2, -3, -4)
t
3
t
3
t
3
t
4
t
4
t
4
t
5
Symbol
t
1
t
1
t
1
Conditions
30 pF Load, all devices
20 pF Load, -1H, -2H, -5H Devices
1
15pF Load, -1, -2, -3, -4 devices
Measured at 1.4V, FOUT = 66.66MHz, 30pF
Load
Measured at 1.4V, FOUT = 50MHz, 15pF
Load
Measured between 0.8V and 2V, 30pF Load
Measured between 0.8V and 2V, 15pF Load
Measured between 0.8V and 2V, 30pF Load
Measured between 0.8V and 2V, 30pF Load
Measured between 0.8V and 2V, 15pF Load
Measured between 0.8V and 2V, 30pF Load
All outputs equally loaded
All outputs equally loaded
All outputs equally loaded
All outputs equally loaded
Min.
10
10
10
40
45
Typ.
Max.
100
133.3
133.3
Units
MHz
MHz
MHz
%
%
ns
ns
ns
ns
ns
ns
ps
ps
ps
ps
ps
ps
V/ns
50
50
60
55
2.2
1.5
1.5
2.2
1.5
1.25
200
200
200
400
±250
700
Fall Time (-1H, -5H)
Output to Output Skew on same Bank
(-1, -2, -3, -4)
Output to Output Skew (-1H, -2H, -5H)
Output Bank A to Output Bank B (-1, -4,
-2H, -5H)
Output Bank A to Output Bank B Skew
(-2, -3)
Delay, REF Rising Edge to FBK Rising
Edge
Device to Device Skew
Output Slew Rate
Cycle to Cycle Jitter
(-1, -1H, -4, -5H)
t
6
t
7
t
8
t
J
Measured at VDD/2
Measured at VDD/2 on the FBK pins of
devices
Measured between 0.8V and 2V on -1H, -2H,
-5H device using Test Circuit 2
Measured at 66.67 MHz, loaded outputs,
15pF Load
Measured at 66.67 MHz, loaded outputs,
30pF Load
Measured at 133.3 MHz, loaded outputs,
15pF Load
1
200
200
100
400
400
1
ps
Cycle to Cycle Jitter
(-2, -2H, -3)
t
J
Measured at 66.67 MHz, loaded outputs,
30pF Load
Measured at 66.67 MHz, loaded outputs,
15pF Load
ps
PLL Lock Time
t
LOCK
Stable Power Supply, valid clocks presented
on REF and FBK pins
ms
Note 1:
IDT2308B-5H has maximum input frequency of 133.33 MHz and maximum output of 66.67 MHz.
IDT™
3.3 VOLT ZERO DELAY CLOCK MULTIPLIER
6
IDT2308B
REV B 030509
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
