Datasheet


    
SLLS418I − JUNE 2000 − REVISED DECEMBER 2004
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
APPLICATION INFORMATION
power-class programming (continued)
TPA+
TPA−
TPB+
TPB−
Cable Port
CPS
TPBIAS
56 Ω
‡
56 Ω
‡
56 Ω
‡
56 Ω
‡
5 kΩ
1 µF
400 kΩ
220 pF
†
TSB41AB3
Cable
Power
Pair
Cable
Pair
A
Cable
Pair
B
Outer Shield
Termination
†
The IEEE Std 1394-1995 calls for a 250-pF capacitor, which is a nonstandard component value. A 220-pF capacitor is recommended.
‡
± 0.5% to meet 1394−1995 specification.
Figure 4. TP Cable Connections
1 MΩ
0.001 µF
0.01 µF
Outer Cable Shield
Chassis Ground
Figure 5. Typical Compliant DC Isolated Outer Shield Termination