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DocID12970 Rev 4 3/9
USBULC6-2F3 Characteristics
9
Figure 3. Eye diagram, board only (according to
USB high speed specification)
Figure 4. Eye diagram, board with
USBULC6-2F3 (according to USB 2.0 high
speed specification)
Horiz: 347 ps/div
Ver: 200 mV/div
Horiz: 347 ps/div
Ver: 200 mV/div
Figure 5. ESD response to IEC 61000-4-2
(+8 kV contact discharge)
(1)
Figure 6. ESD response to IEC 61000-4-2
(-8 kV contact discharge)
(1)
1. Test board connected to oscilloscope through 50 Ω cable and 20 dB + 6 dB attenuator. ESD generator return path
connected to PCB ground plane.
20 V/div
113.8 V
21.5 V
13.8 V
6.9 V
20 ns/div
V : ESD peak voltage
V :clamping voltage @ 30 ns
V :clamping voltage @ 60 ns
PP
CL
CL
V :clamping voltage @ 100 ns
CL
1
1
2
2
3
4
4
3
10 V/div
-69.1 V
-6.1 V
-3.6 V
-1.4 V
20 ns/div
V : ESD peak voltage
V :clamping voltage @ 30 ns
V :clamping voltage @ 60 ns
PP
CL
CL
V :clamping voltage @ 100 ns
CL
1
1
2
2
3
4
4
3
Figure 7. Junction capacitance versus
frequency (typical values)
Figure 8. Analog crosstalk measurement
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
F(MHz)
V
OSC
= 30 mV rms
T
j
= 25 °C
C (pF)
0 500 1000 1500 2000 2500 3000
A1 and A2 / GND
A1 / A2