IEEE1394 PORT CABLE TERMINATION NETWORK WITH PROTECTION DIODES IP

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IEEE1394 PORT CABLE TERMINATION NETWORK WITH PROTECTION DIODES IP

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ST1394-01SC6
IEEE1394 PORT CABLE TERMINATION NETWORK WITH PROTECTION DIODES
IPAD(Integrated Passive Active Devices)
MAIN APPLICATIONS IEEE1394 line termination Desktops Notebooks Digital Camcorders External storage drive
TPB+ TPATpBias
TPBGND TPA+
FEATURES LINE TERMINATION TWISTED PAIRS DEVICE COMPLIES WITH IEEE1394 REQUIREMENT DIFFERENTIAL COMMON MODE IMPEDANCE LINE MONOLITHIC DEVICE WITH COMPLETE TERMINATION IEEE1394 CONNECTION
SOT23-6L (Plastic)
FUNCTIONAL DIAGRAM
TPA+
DESCRIPTION ST1394-01SC6 integrated termination network that optimizes board layout layer IEEE1394 port cable application. This monolithic device tested, according requirement described IEC61000-4-2 standard level ST1394-01SC6 device ruggedness limits overvoltage 1394 tranceiver inputs outputs below acceptable limits. ST1394-01SC6 implements IEEE1394 recommendation line termination differential lines. Excellent matching termination resistor will minimize common mode noise that needed improve communication speed. BENEFITS Resistor matching between lines. Resistor matching between TPA+ TPASingle chip device versus discretes need additional overvoltage protection device High level integration
TpBias TPA-
TPB-
TPB+
Lines Names Value
TPA+
TPA-
TPB+
TPB-
Zener Capacitance Max.
Typ.
Typ.
Typ.
250pF
Tolerance Typ. Matching
Matching between Resistor max.
July 2003
ST1394-01SC6
ABSOLUTE RATINGS (Tamb Symbol Tstg 25°C) Parameter test conditions Storage temperature range Maximum junction temperature Lead solder temperature second duration) Value +150 +150 Unit
ELECTRICAL CHARACTERISTICS (Tamb 25°C) Symbol Parameter Min. Typ. Max. Unit
termination resistors (note (R1+R2), (R3+R4) Zener capacitance Pull down resistor Capacitor parallel with termination impedance
Note matching between resistors better than
FUNCTIONNAL DIAGRAM
TpBias TPA+ TPA55
Twisted Pair
250pF
TPB+ TPB-
Twisted Pair Outer shied 0.1µF termination
Minimize this distance
0.01µF
APPLICATION INFORMATION functional diagram here above presents IEEE1394-a cable shows connect ST1394-01SC6 order correctly terminate filter lines.
ST1394-01SC6
TECHNICAL INFORMATION FREQUENCY BEHAVIOR DATA STROBE SIGNALS Fig. Measurement conditions. Fig. Test Board.
test board
TRACKING GENERATOR SPECTRUM ANALYSER
Calibration board
ST1394
Vout
Fig. line: comparison between Aplac model device.
0.00 -5.00
Fig. line: comparison between Aplac model device.
0.00 -5.00 -10.00 -15.00 -20.00
-10.00
-25.00 -30.00 -35.00
-15.00
-40.00 -45.00
-20.00 100.0k
1.0M Line
10.0M 100.0M f/Hz SimLine
1.0G
-50.00 100.0k
1.0M Line
10.0M 100.0M f/Hz SimLine
1.0G
Note: convenience reason, frequency response have been carried both lines TPA+ TPA- TPB+ TPB- were respectively Inputs Outputs lines
ST1394-01SC6
Fig. Crosstalk between lines.
0.00 -25.00
-50.00
-75.00
-100.00 100.0k
1.0M
10.0M 100.0M f/Hz
1.0G
Fig. ST1394 APLAC model.
Lbond Lbond Rbond Lframe Lpin Lbond Rpin Rbond Lpin Rpin Port9 Rpin Rgnd Lpin Lgnd Rbond Rframepin Port10 250p Lbond Lpin Rpin Rbond Lpin
Ls=1n Rs=100m Lpin =230p Rpin =50m Lbond =420p Rbond =50m LFrame=80p Rframepin=8.6m
Lgnd =50p Rgnd =50m
Port11 Port12
Cdiode
ST1394-01SC6
PACKAGE MECHANICAL DATA SOT23-6L (Plastic)
DIMENSIONS REF. Millimeters Min. Typ. Max. 1.45 0.10 1.30 0.50 0.20 3.00 1.75 0.95 2.60 0.10 3.00 0.102 0.60 0.004 Min. 0.035 0.035 0.0137 0.004 0.11 0.059 0.0374 0.118 0.024 0.90 0.90 0.35 0.09 2.80 1.50 Inches Typ. Max. 0.057 0.004 0.0512 0.02 0.008 0.118 0.0689
FOOTPRINT DIMENSIONS
0.60 0.024
TPBIAS
1.20 0.047
TPA+ TPATPB+ TPBAGND AGND AVDD AVDD
TPA+
TpBias
TPA-
3.50 0.138
2.30 0.090
inch
1.10 0.043
TPB-
TPB+
0.95 0.037
Order code ST1394-01SC6
Marking
Package SOT23-6L
Weight 16.7
Delivery mode Tape reel
Base 3000
Information furnished believed accurate reliable. However, STMicroelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights STMicroelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. STMicroelectronics products authorized critical components life support devices systems without express written approval STMicroelectronics.
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IEEE1394 PORT CABLE TERMINATION NETWORK WITH PROTECTION DIODES IP

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