Date post: | 21-Mar-2017 |
Category: |
Technology |
Upload: | piero-belforte |
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Application Domain
• Signal Integrity investigation – efficient handling of huge number of transmission lines
– simultaneous analysis of transmission, crosstalk and switching noise issues
• High-speed and complex system design&validation
• MCM, PCB, Backplane, Interconnection layout check
• EMC/EMI analysis
• Hardware quality verification
Application Market
• Telecom
• Computer
• Automotive
• Aerospace
• Automatic Test Equipment
• Measurement
• Biomedical
• Consumer Electronics
Technologies supported
• PCB
• MCM
• Hybrid
Interconnect levels • multiboards
• backplane
• LANS
• entire apparatus
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THE CONCEPT
PRESTO
1 2 3 4 5 6
7 8 9
FILE_TYPE=HDT_PLIB;
TIME=Thu Dec 10 10:45:33 1992
COMPONENT=AC04, 74AC04;
FAMILY=FACT;
PACKAGE=DEFAULT, DIP14, SOIC14;
FACTORY=DEFAULT;
TYPE=IC;
NPINS=14;
BEGIN_PIN
FACT_DR24_P=2,4,6,8,10,12;
FACT_RC_P=1,3,5,9,11,13;
FACT_GND_P=7;
FACT_VCC_P=14;
END_PIN;
BEGIN_FUNCTION
DRIVER=2,4,6,8,10,12;
RECEIVER=1,3,5,9,11,13;
POWER_FACT=14;
GROUND_FACT=7;
END_FUNCTION;
END.
Driver
Receiver
SSN report
Compliance
analysis
report
Overshoots
undershoots
rise and fall
time
report
398.00 399.00 400.00 401.00 402.00 403.00 404.00404.40
TIME[nS]
-2.00 V
-1.75 V
-1.50 V
-1.25 V
-1.00 V
-0.75 V
-0.50 VV(116)
70.00 80.00 90.00 100.00 110.00 120.00 130.00 140.00 150.00 160.00 170.00 180.00
-5.00V
-4.00V
-3.00V
-2.00V
-1.00V
0.00V
1.00V
2.00V
3.00V
4.00V
5.00V
6.00V
7.00V
8.00V
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17
The HDT line: “The Backbone”
SPRINT
– Simulation Program of Response of
Integrated Network Transients
SIGHTS
– Standard Interface for Graphic
Handling of Transient Signals
Mod-env
– Modeling environment
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17
The HDT line: “Signal Integrity”
PRESTO
– Post-layout Rapid Exhaustive Simulation and Test of Operation
TEMPO
– Tool for Electrical Multiple Performance Optimization
XTALK
– CrossTALK
SSN
– Simultaneous Switching Noise
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17
The HDT line: “EMC”
PRESTO_CNT
– Post-layout simulation to evaluate
Conducted Noise Transmission
EMIR
– EMIssion Radiated
EMIR-Cable
– Cable attached PCB emission &
conducted noise transmission analysis
10
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17
The differentiators: “Fast”
Remember this:
approx 0.3 secs for single net simulation!
• Comparison between
simulation and
measures
of high-speed
multiboard
system (155Mbit/s)
• 50000 elements
• 32 simultaneous input
sequence
• 16000 time points
• 60 min. simulation time
on a HP 750
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17
Simultaneous simulation of all nets of a
complex PCB is available
Presto can simulate signal integrity,
crosstalk but also simultaneous switching
noise on vcc/gnd nets or planes
Many benchmark results are available to
demonstrate a good comparison with
measurement
The differentiators: “Accurate”
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17
The differentiators: “User friendly”
70.00 80.00 100.00 120.00 140.00 160.00 180.00TIME[nS]
-4.00V
-2.00V
0.00V
2.00V
4.00V
6.00V
8.00V#U4_1
#IC23_4
lower and upper masks
mask violations
Net CLK1 upper and lower masks v iolation Error f igure: 8.12
Net DAT1 upper and lower masks v iolation Error f igure: 6.01
Net ADD1 lower mask v iolation Error f igure: 0.21
Net ADD2 upper mask v iolation Error f igure: 0.11
Net ADD3 upper mask v iolation Error f igure: 0.11Net RD no v iolation Error f igure: -
Net RDN no v iolation Error f igure: -
70.00 80.00 100.00 120.00 140.00 160.00 180.00TIME[nS]
-4V
-2V
0V
2V
4V
6V
8V
Eye-diagram opening
Jitter
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17
It is possible to predict results of
precompliance tests for:
– RADIATED EMISSIONS
– CONDUCTED NOISE SUSCEPTIBILITY
– CONDUCTED EMISSIONS
The differentiators: “A complete solution”
14
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17 10 100 1 10
320
10
0
10
20
30
40
50
60
70
80
Frequency in MHz
|E| in dBV/m
EN 55022
Emissions from PCB +
cable: measurement
Emissions from PCB +
cable: simulation
Emissions from PCB:
simulation
Emissions from the
cable: simulation
The differentiators: “Advanced”
Collaborations
• Research centers:
»CSELT inside of THRIS product
(telecom market)
»COREP
»ITALTEL in EMC/EMI
• University research&thesis:
»Politecnico di Torino (Prof. Canavero),
»Università di Ancona (Prof. De leo),
»Università di L’Aquila (Prof. Orlandi),
»University of Belgrade (Prof.
Djordjeviz),
»University of Lille (Prof. Demoulin)
Collaborations