TSB81BA3D_16 Datasheet, PDF (22/61 Pages) Texas Instruments – IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER

TSB81BA3D, TSB81BA3DI
IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER
SLLS559E − DECEMBER 2002 − REVISED JUNE 2006
APPLICATION INFORMATION
power-class programming (continued)
Outer Shield
Termination
TSB81BA3D
CPS
TPBIAS
400 kΩ
1 μF
TPA+
TPA−
56 Ω
56 Ω
270 pF
VP
Cable
Power
Pair
Cable
Pair
A
Cable Port
TPB+
TPB−
1 MΩ
0.1 μF ^TPA_REFGND
56 Ω
56 Ω
270 pF
(see Note A)
5 kΩ
Cable
Pair
B
TPB_REFGND
VG
NOTE A: The IEEE Std 1394−1995 calls for a 250-pF capacitor, which is a nonstandard component value. A 270-pF capacitor is recommended.
Figure 4. Typical TP Cable Connections
Outer Cable Shield
1 MΩ
0.01 μF
0.001 μF
Chassis Ground
Figure 5. Typical DC Isolated Outer Shield Termination
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