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557GI-03LFT

P1-P3P4-P6P7-P9P10-P11
ICS557-03
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE PCIE SSCG
IDT®
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE 4
ICS557-03 REV U 112111
PCI-Express Layout Guidelines
PCI-Express Device Routing
Typical PCI-Express (HCSL) Waveform
Common Recommendations for Differential Routing Dimension or Value Unit
L1 length, Route as non-coupled 50 ohm trace. 0.5 max inch
L2 length, Route as non-coupled 50 ohm trace. 0.2 max inch
L3 length, Route as non-coupled 50 ohm trace. 0.2 max inch
R
S
33 ohm
R
T
49.9 ohm
Differential Routing on a Single PCB Dimension or Value Unit
L4 length, Route as coupled microstrip 100 ohm differential trace.
2 min to 16 max inch
L4 length, Route as coupled stripline 100 ohm differential trace.
1.8 min to 14.4 max inch
Differential Routing to a PCI Express Connector Dimension or Value Unit
L4 length, Route as coupled microstrip 100 ohm differential trace.
0.25 to 14 max inch
L4 length, Route as coupled stripline 100 ohm differential trace.
0.225 min to 12.6 max inch
R
S
R
S
R
T
R
T
PCI-Express
Load or
Connector
L1 L2
L3’
L4
L1’ L2’
L3
L4’
ICS557-03
Output
Clock
0.175 V
0.525 V
0.175 V
0.525 V
t
OR
t
OF
500 ps 500 ps
700 mV
0
ICS557-03
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE PCIE SSCG
IDT®
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE 5
ICS557-03 REV U 112111
LVDS Compatible Layout Guidelines
LVDS Device Routing
Typical LVDS Waveform
Vdiff Vp-p Vcm R1 R2 R3 R4 Note
0.45v 0.22v 1.08 33 150 100 100
0.58 0.28 0.6 33 78.7 137 100
0.80 0.40 0.6 33 78.7 none 100 ICS874003i-02 input compatible
0.60 0.3 1.2 33 174 140 100 Standard LVDS
R1a = R1b = R1
R2a = R2b = R2
Alternative Termination for LVDS and other Common Differential Signals
1150 mV
1250 mV
t
OR
t
OF
500 ps 500 ps
1325 mV
1000 mV
1150 mV
1250 mV
ICS557-03
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE PCIE SSCG
IDT®
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE 6
ICS557-03 REV U 112111
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS557-03. These ratings are stress
ratings only. Functional operation of the device at these or any other conditions above those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for
extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended
operating temperature range.
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85° C
1. Single edge is monotonic when transitioning through region.
2. Inputs with pull-ups/-downs are not included.
Item Rating
Supply Voltage, VDDXD, VDDODA 7 V
All Inputs and Outputs -0.5 V to VDD+0.5 V
Ambient Operating Temperature (commercial) 0 to +70° C
Ambient Operating Temperature (industrial) -40 to +85° C
Storage Temperature -65 to +150° C
Junction Temperature 125° C
Soldering Temperature 260° C
ESD Protection (Input) 2000 V min. (HBM)
Parameter Symbo
l
Conditions Min. Typ. Max. Units
Supply Voltage V 2.97 3.3 3.63 V
Input High Voltage
1
V
IH
S0, S1, OE, ICLK, SS0, SS1 2.0 VDD +0.3 V
Input Low Voltage
1
V
IL
S0, S1, OE, ICLK, SS0, SS1 VSS-0.3 0.8 V
Input Leakage Current
2
I
IL
0 < Vin < VDD -5 5 μA
Operating Supply Current I
DD
50Ω, 2 pF 78 mA
I
DDOE
OE =Low 44 mA
Input Capacitance C
IN
Input pin capacitance 7 pF
Output Capacitance C
OUT
Output pin capacitance 6 pF
Pin Inductance L
PIN
5nH
Output Resistance R
OUT
CLK outputs 3.0 kΩ
Pull-up Resistor R
PU
S0, S1, OE, SS0, SS1 100 kΩ
P1-P3P4-P6P7-P9P10-P11

557GI-03LFT

Mfr. #:
Buy 557GI-03LFT
Manufacturer:
IDT
Description:
Clock Generators & Support Products PCI-EXPRESS CLOCK SOURCE
Lifecycle:
New from this manufacturer.
Delivery:
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