DIGITAL-LOGIC AG

SMA200 Manual V1.0

5.4.4.USB

Signal

USB_[0..7] +/-

USB_OC[0..7]#

 

 

 

 

On Module

Ext. Ter-

Max.

 

Matched

 

BUS

Type

Description

Termination

mination

Length

Ohm

Length

 

 

 

 

 

Needed

in mm

 

in mm

 

USB

Dif

Differential USB data signal

-

-

300

100

0.2

 

 

 

pair

 

 

 

 

 

 

USB

3.3V

USB overcurrent signal

PU 10k to

-

300

55

 

 

 

In

 

3.3V

 

 

 

 

If the signals are not used:

All these USB signals may be left open.

Remarks:

EMV/EMI-filters:

Use a choke and clamping diode on each signal pair.

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Image 28
Compaq SMA200 user manual Usb, On Module Ext. Ter Max Matched, Remarks EMV/EMI-filters