ics557-01 Integrated Device Technology, ics557-01 Datasheet - Page 7

• Manufacturer Part Number: ics557-01
• Description: Pci-express Clock Source
• Manufacturer: Integrated Device Technology

AC Electrical Characteristics - CLK/CLK
Unless stated otherwise, VDD=3.3 V ±5%, Ambient Temperature -40 to +85° C
Thermal Characteristics
IDT™ / ICS™ PCI-EXPRESS CLOCK SOURCE
Input Frequency
Output Frequency
Output High Voltage
Output Low Voltage
Crossing Point
Voltage
Crossing Point
Voltage
Jitter, Cycle-to-Cycle
Rise Time
Fall Time
Rise/Fall Time
Variation
Duty Cycle
Output Enable Time
Output Disable Time
Stabilization Time
Spread Change Time
ICS557-01
PCI-EXPRESS CLOCK SOURCE
Parameter
1
2
3
4
5
1,2
1,2,4
Thermal Resistance Junction to
Ambient
Thermal Resistance Junction to Case
Test setup is R
Measurement taken from a single-ended waveform.
Measurement taken from a differential waveform.
Measured at the crossing point where instantaneous voltages of both CLKOUT and CLKOUT are equal.
CLKOUT pins are tri-stated when OE is low asserted. CLKOUT is driven differential when OE is high.
1,2
1,2
1,2
1,3
1,2
1,2
5
5
1,3
Parameter
L
=50 ohms with 2 pF, R
Symbo
t
t
SPREAD
STABLE
V
V
t
t
OR
OF
OH
OL
l
(8-pin SOIC)
Absolute
Variation over all edges
From 0.175 V to 0.525 V
From 0.525 V to 0.175 V
All outputs
All outputs
From power-up VDD=3.3 V
Settling period after spread change
R
Symbol
Conditions
= 475Ω (1%).
θ
θ
θ
θ
JC
JA
JA
JA
Still air
3 m/s air flow
7
1 m/s air flow
Conditions
Min.
-150
660
250
175
175
45
Min.
Typ.
100
700
350
332
344
3.0
3.0
25
30
30
0
Typ.
150
140
120
40
Max.
ICS557-01
850
550
140
700
700
125
Max. Units
27
80
55
° C/W
° C/W
° C/W
° C/W
Units
MHz
MHz
mV
mV
mV
mV
ms
ms
ps
ps
ps
ps
µs
µs
%
PCIE SSCG
REV H 062607