DocID025264 Rev 1

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USBULC6-2F7

Characteristics

9

Figure 4. Eye diagram, board only (according to

USB high speed specification)

Figure 5. Eye diagram, board with

USBULC6-2F7 (according to USB 2.0 high

speed specification)

347.2 mV/div

200 ps/div

347.2 mV/div

200 ps/div

Figure 6. ESD response to IEC 61000-4-2 (+8 kV

Figure 7. ESD response to IEC 61000-4-2 (-8 kV

contact discharge)(1)

1.

Test board connected to oscilloscope through 50

 cable and 20 dB + 6 dB attenuator. ESD generator return path

connected to PCB ground plane.

20 V/div

105 V

23 V

17 V

9 V

V : ESD peak voltage

PP

V :clamping voltage @ 30 ns

CL

V :clamping voltage @ 60 ns

CL

V :clamping voltage @ 100 ns

CL

1

1

2

2

3

3

4

4

20 ns/div

20 V/div

-84 V

-8 V

-5 V

-1 V

V : ESD peak voltage

PP

V :clamping voltage @ 30 ns

CL

V :clamping voltage @ 60 ns

CL

V :clamping voltage @ 100 ns

CL

20 ns/div

1

2

3

4

1

2

3

4

Figure 8. Junction capacitance versus

frequency (typical values)

Figure 9. Analog crosstalk measurement

C (pF)

0.0

0.5

1.0

1.5

1

10

100

1000

Tj = 25 °C

VOSC = 30 mV

IO / GND

IO / IO

F( Hz)

M

dB

100k

1M

10M

100M

1G

10G

-120

-110

-100

- 90

- 80

- 70

- 60

- 50

- 40

- 30

- 20

- 10

0

Xtalk

F (Hz)