Datasheet


    
SGLS122C − JULY 2002 − REVISED JUNE 2008
23
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
power-class programming (continued)
TPA+
TPA−
TPB+
TPB−
Cable Port
CPS
TPBIAS
56 Ω56 Ω
56 Ω56 Ω
5 kΩ
1 µF
400 kΩ
220 pF
(see Note A)
TSB41AB3
Cable
Power
Pair
Cable
Pair
A
Cable
Pair
B
Outer Shield
Termination
NOTE D: The IEEE Std 1394-1995 calls for a 250-pF capacitor, which is a nonstandard component value. A 220-pF capacitor is recommended.
Figure 5. TP Cable Connections
1 MΩ
0.001 µF
0.01 µF
Outer Cable Shield
Chassis Ground
Figure 6. Typical Compliant DC Isolated Outer Shield Termination