Typical Test Results
2-5
Setup and Equipment Required
2.4
Typical Test Results
Figure 2–3 is a typical result obtained with the EVM setup shown in
Figure 2–1. The upper waveform is the difference voltage between channels
1 and 2 of the oscilloscope and the lower trace is the difference voltage
between channels 3 and 4. The DUT was configured to send the IN0+/IN0–
inputs to the outputs OUT0+/OUT0– and inputs IN1+/IN1– to outputs
OUT1+/OUT1– by setting EN0 and EN1 to a high level and by setting SEL0
to Gnd and SEL1 to Vcc. The stimuli were a 2
23
–1 PRBS to J1 and J2 at 1.3
Gbps, and a 650 MHz clock to J3 and J4. The input levels for both clock and
data were a differential voltage of 400 mV, with a common-mode voltage of 0 V
(referenced to the ground of the pattern generator).
Figure 2–3. Typical Test Results of the SN65LVCP23 with the SN65LVCP22/23EVM
1.3 Gbps
223 –1 PRBS
VCC = 3.3 V
|VID| = 200 mV, VIC = 1.2 V
Vertical Scale=400mV/div
650 MHz
Horizontal Scale = 20
0
ps
OUTPUT 1
OUTPUT 2
