NBSG86ABAEVB

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3

AND/NAND Function Setup (continued)

Connect the Inputs

Step 2:

For Differential Mode (3.3 V and 2.5 V operation)

2a: Connect the differential outputs of the generator to the differential inputs of the device

(D1/D1 and SEL/SEL).

2d: Connect the generator trigger to the oscilloscope trigger.

For Single-Ended Mode (3.3 V operation only)

2a: Connect an AC-coupled output of the generator to the desired differential input of the

device.

W resis-

tor.

2e: Connect the generator trigger to the oscilloscope trigger.

All Function Setups

Connect OLS (Output Level Select) to the required voltage to obtain desired output ampli-

tude. Refer to the NBSG86A device data sheet page 2 OLS voltage table.

Setup Input Signal

Step 3:

3a: Set the signal generator amplitude to 400 mV. Note that the signal generator amplitude

can vary from 75 mV to 900 mV to produce a 400 mV DUT output.

3b: Set the signal generator offset to 660 mV (the center of a nominal RSECL output). Note

further information.

3c: Set the generator output for a square wave clock signal with a 50% duty cycle, or for a

PRBS data signal.

Connect Output Signals

Step 4:

4a: Connect the outputs of the evaluation board (Q, Q) to the oscilloscope. The

oscilloscope sampling head must have internal 50

W termination to ground.

NOTE:

Where a single output is being used, the unconnected output for the pair

must be terminated to