IDT2309 Просмотр технического описания (PDF) - Integrated Device Technology
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IDT2309 Datasheet PDF : 10 Pages
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IDT2309
3.3V ZERO DELAY CLOCK BUFFER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS (2309-1) - INDUSTRIAL(1,2)
Symbol
Parameter
Conditions
Min.
t1
Output Frequency
10pF Load
10
30pF Load
10
Duty Cycle = t2 ÷ t1
Measured at 1.4V, FOUT = 66.66MHz
40
t3
Rise Time
Measured between 0.8V and 2V
—
t4
Fall Time
Measured between 0.8V and 2V
—
t5
Output to Output Skew
All outputs equally loaded
—
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 (IDT2309 only) 1
t7
Device-to-Device Skew
Measured at VDD/2 on the CLKOUT pins of devices
—
tJ
Cycle-to-Cycle Jitter
Measured at 66.66MHz, loaded outputs
—
tLOCK PLL Lock Time
Stable power supply, valid clock presented on REF pin —
NOTES:
1. REF Input has a threshold voltage of VDD/2.
2. All parameters specified with loaded outputs.
Typ. Max. Unit
— 133 MHz
— 100
50 60
%
— 2.5
ns
— 2.5
ns
— 250
ps
0 ±350 ps
5 8.7
ns
0 700
ps
— 200
ps
—
1
ms
SWITCHING CHARACTERISTICS (2309-1H) - INDUSTRIAL(1,2)
Symbol
Parameter
Conditions
Min.
t1
Output Frequency
10pF Load
10
30pF Load
10
Duty Cycle = t2 ÷ t1
Measured at 1.4V, FOUT = 66.66MHz
40
Duty Cycle = t2 ÷ t1
Measured at 1.4V, FOUT <50MHz
45
t3
Rise Time
Measured between 0.8V and 2V
—
t4
Fall Time
Measured between 0.8V and 2V
—
t5
Output to Output Skew
All outputs equally loaded
—
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 (IDT2309 only) 1
t7
Device-to-Device Skew
Measured at VDD/2 on the CLKOUT pins of devices
—
t8
Output Slew Rate
Measured between 0.8V and 2V using Test Circuit 2
1
tJ
Cycle-to-Cycle Jitter
Measured at 66.66MHz, loaded outputs
—
tLOCK PLL Lock Time
Stable power supply, valid clock presented on REF pin —
NOTES:
1. REF Input has a threshold voltage of VDD/2.
2. All parameters specified with loaded outputs.
Typ. Max. Unit
— 133 MHz
— 100
50 60
%
50 55
%
— 1.5
ns
— 1.5
ns
— 250
ps
0 ±350 ps
5 8.7
ns
0 700
ps
— — V/ns
— 200
ps
—
1
ms
5
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