UPD720113GK-9EU-A 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD720113GK-9EU-A

USB 2.0 HUB CONTROLLER

NEC => Renesas Technology 

Figure 2-4. Receiver Sensitivity for Transceiver at DP/DM

µPD720113

Level 1

Level 2

0%

Point 3

Point 1

Point 5

Point 4

Point 2

Point 6

+400 mV

Differential

0V

Differential

−400 mV

Differential

Unit Interval

100%

Figure 2-5. Receiver Measurement Fixtures

USB

Connector

Nearest

Device

VBUS

D+

D-

GND

Test Supply Voltage

15.8 Ω

15.8 Ω

50 Ω

Coax

50 Ω

Coax

143 Ω

143 Ω

+

To 50 Ω Inputs of a

High Speed Differential

Oscilloscope, or 50 Ω

Outputs of a High Speed

Differential Data Generator

−

14

Data Sheet S16618EJ3V0DS

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