UPD72874 データシートの表示（PDF） - NEC => Renesas Technology

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UPD72874

IEEE1394 OHCI 1.1 COMPLIANT 3PORT PHY-LINK 1-CHIP HOST CONTROLLER

NEC => Renesas Technology 

µPD72874

4. PHY FUNCTION

4.1 Cable Interface

4.1.1 Connections

Figure 4-1. Cable Interface

Connection Detection Current

Connection Detection Comparator

Common Mode Speed Current driver

+

-

Driver

Receiver

+

-

Arbitration Comparators

+

-

TpBias

TpAp

7 kΩ

7 kΩ

TpAn

56 Ω

56 Ω

56 Ω

56 Ω

1 µF

0.01 µF 5.1 kΩ

+

-

Common Mode Comparators

+

-

+

-

Common Mode Speed Current Driver

TpBp

7 kΩ

7 kΩ

TpBn

270 pF

Driver

Receiver

+

-

Arbitration Comparators

+

-

+

-

Common Mode Comparator

+

-

Connection Detection Current

Connection Detection Comparator

Driver

Receiver

+

-

Arbitration Comparators

+

-

+

-

Common Mode Comparator

+

-

TpBp

7 kΩ

7 kΩ

TpBn

56 Ω

56 Ω

TpBias

56 Ω

56 Ω

TpAp

7 kΩ

7 kΩ

TpAn

270 pF

5.1 kΩ 0.01 µF

1 µF

+

-

Driver

Receiver

+

-

Arbitration Comparators

+

-

+

-

Common Mode Comparators

+

-

+

-

Preliminary Data Sheet S15306EJ2V0DS

29

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