upd720110a Renesas Electronics Corporation., upd720110a Datasheet - Page 20

• Manufacturer Part Number: upd720110a
• Description: Usb 2.0 Hub Controller
• Manufacturer: Renesas Electronics Corporation.

Clock & Overcurrent Response Timing
20
CLK30MO cycle time
CLK30MO high level width
CLK30MO low level width
Overcurrent response time from CSB
low to PPB high (Figure 2-19)
Connector
Nearest
Device
USB
Parameter
Level 1
Level 2
Vbus
Gnd
D+
D-
Figure 2-7. Transmit Waveform for Transceiver at DP/DM
0%
Figure 2-8. Transmitter Measurement Fixtures
143 Ω
Point 1
Test Supply Voltage
t
t
t
t
C3C
C3H
C3L
OC
Point 5
Symbol
Point 3
Data Sheet S15737EJ6V0DS
15.8 Ω
15.8 Ω
Unit Interval
143 Ω
Condition
Point 6
Point 4
Point 2
50 Ω
Coax
50 Ω
Coax
100%
MIN.
15.9
15.9
500
+
To 50 Ω Inputs of a
High Speed Differential
Oscilloscope, or 50 Ω
Outputs of a High Speed
Differential Data Generator
−
Differential
Differential
Differential
+400 mV
−400 mV
33.33
TYP.
0 V
MAX.
17.5
17.5
625
µ
PD720110A
Unit
µ
ns
ns
ns
s