鈻?/div>
Monolithic device with complete termination for
one IEEE1394 connection
DESCRIPTION
The ST1394-01SC6 is an integrated termination
network that optimizes board layout of the PHY
layer in IEEE1394 one port cable application.
This monolithic device is tested, according to ESD
requirement described in IEC61000-4-2 standard
level 2. ST1394-01SC6 device ruggedness limits
overvoltage at the 1394 tranceiver inputs and out-
puts below acceptable limits.
The ST1394-01SC6 implements IEEE1394
recommendation for line termination of TPA and
TPB differential lines. Excellent matching of the
termination resistor will minimize common mode
noise that is needed to improve communication
speed.
BENEFITS
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
SOT23-6L
(Plastic)
Table 1: Order Code
Part Number
ST1394-01SC6
Marking
139
Figure 1: Pinout Configuration
TPA+
GND
R1
R2
TpBias
TPA-
C
R5
TPB-
R4
R3
TPB+
Resistor matching between TPA / TPB lines.
Resistor matching between TPA+ / TPA-
Single chip devise versus 11 discretes
No need for additional overvoltage protection
device
High level of integration
Lines
Names
Value
TPA+ TPA- TPB+ TPB-
R1
55鈩?/div>
R12
55鈩?/div>
Typ.
R3
55鈩?/div>
Typ.
R4
55鈩?/div>
Typ.
Rpd
R5
55鈩?/div>
20%
GND
C
250pF
20%
Zener
Capacitance
Cz
5pF
Max.
Tolerance
Typ.
Matching
Matching between 55鈩?/div>
Resistor at
鹵
1% max
TM:
IPAD is a trademark of STMicroelectronics.
October 2004
REV. 2
1/6
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