IDT2309B データシートの表示（PDF） - Integrated Device Technology
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IDT2309B Datasheet PDF : 10 Pages
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IDT2309B
3.3V ZERO DELAY CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
(1,2)
SWITCHING CHARACTERISTICS (2309B-1) - INDUSTRIAL
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
t1
Output Frequency
10pF Load
10
— 133 MHz
30pF Load
10
— 100
Duty Cycle = t2 ÷ t1
Measured at 1.4V, FOUT = 66.66MHz
40
50 60 %
t3
Rise Time
Measured between 0.8V and 2V
—
— 2.5 ns
t4
Fall Time
Measured between 0.8V and 2V
—
— 2.5 ns
t5
Output to Output Skew
All outputs equally loaded
—
— 250 ps
t6A
Delay, REF Rising Edge to CLKOUT Rising Edge Measured at VDD/2
—
0 ±350 ps
t6B
Delay, REF Rising Edge to CLKOUT Rising Edge Measured at VDD/2 in PLL bypass mode (IDT2309B only) 1
5 8.7 ns
t7
Device-to-Device Skew
Measured at VDD/2 on the CLKOUT pins of devices
—
0 700 ps
tJ
Cycle-to-Cycle Jitter
Measured at 66.66MHz, loaded outputs
—
50 175 ps
tLOCK PLL Lock Time
Stable power supply, valid clock presented on REF pin
—
—
1 ms
NOTES:
1. REF Input has a threshold voltage of VDD/2.
2. All parameters specified with loaded outputs.
SWITCHING CHARACTERISTICS (2309B-1H) - INDUSTRIAL(1,2)
Symbol
t1
Parameter
Output Frequency
Duty Cycle = t2 ÷ t1
Conditions
10pF Load
30pF Load
Measured at 1.4V, FOUT = 66.66MHz
Min. Typ. Max. Unit
10
—
133 MHz
10
—
100
40
50
60 %
Duty Cycle = t2 ÷ t1
Measured at 1.4V, FOUT <50MHz
45
50
55 %
t3
Rise Time
Measured between 0.8V and 2V
—
—
1.5 ns
t4
Fall Time
Measured between 0.8V and 2V
—
—
1.5 ns
t5
Output to Output Skew
All outputs equally loaded
—
—
250 ps
t6A
Delay, REF Rising Edge to CLKOUT Rising Edge Measured at VDD/2
—
t6B
Delay, REF Rising Edge to CLKOUT Rising Edge Measured at VDD/2 in PLL bypass mode (IDT2309B only) 1
0
±350 ps
5
8.7 ns
t7
Device-to-Device Skew
Measured at VDD/2 on the CLKOUT pins of devices
—
0
700 ps
t8
Output Slew Rate
Measured between 0.8V and 2V using Test Circuit 2
1
—
— V/ns
tJ
Cycle-to-Cycle Jitter
Measured at 66.66MHz, loaded outputs
—
—
175 ps
tLOCK PLL Lock Time
Stable power supply, valid clock presented on REF pin
—
—
1 ms
NOTES:
1. REF Input has a threshold voltage of VDD/2.
2. All parameters specified with loaded outputs.
5
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