NCS2632DTBGEVB
http://onsemi.com
3
QUICK START PROCEDURE WITH DIFFERENTIAL SETUP
By default, each channel is set up in a differential
configuration with a gain of 2 V/V. Follow this procedure to
quickly get familiar with the evaluation board features.
1. Make sure that the VDD jumper and UVP
detection supply jumper are in place. Remove all
input jumpers to ground. Table 1 summarizes the
position of each switch and jumper.
2. Connect a 3.3 V supply between the VDD pin and
GND.
3. Set the EN switch to high to enable the IC. Check
the supply current. Verify that EN is high with a
multimeter, if necessary.
4. Use the voltmeter to measure the VSS pin. It
should measure near –VDD.
5. Apply a sine wave (f = 1 kHz, 1 V
pp
) across INLP
and INLM. Observe the waveform at OUTL.
6. Apply a sine wave (f = 1 kHz, 1 V
pp
) across INRP
and INRM. Observe the waveform at OUTR.
For more information and circuit examples refer to the
Application Information section in the data sheet.
Table 1. DEFAULT EVB CONFIGURATION
−
DIFFERENTIAL INPUT
Description
Designator
Pin
State
Input-to-ground Jumper
S3
INRP
Open
S5
INLP
Open
S7
INRM
Open
S10
INLM
Open
Supply Voltage Jumper
S14
VDD
Closed
UVP Detection Circuit Supply Jumper
S12/S13
UVP
Closed
Enable Switch
SW1
EN
High
Figure 3. Default Evaluation Board Schematic
−
Differential Input
