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零件编号
产品描述 (功能)
UPD720114 查看數據表(PDF) - NEC => Renesas Technology
零件编号
产品描述 (功能)
生产厂家
UPD720114
ECOUSB™ Series USB 2.0 HUB CONTROLLER
NEC => Renesas Technology
UPD720114 Datasheet PDF : 32 Pages
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Figure 2-4. Receiver Sensitivity for Transceiver at DP/DM
μ
PD720114
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
V
BUS
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 S17462EJ4V0DS
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