3

dc2071afc

DEMO MANUAL DC2071A

DC890 QUICK START PROCEDURE

Check to make sure that all switches and jumpers are

set as shown in the connection diagram of Figure 1. The

default connections configure the ADC to use the onboard

referenceandregulatorstogeneratetherequiredcommon

mode voltages. The analog input is DC coupled. Connect

the DC2071A to a DC890 USB High Speed Data Collec-

tion Board using connector P1. Then, connect the DC890

to a host PC with a standard USB A/B cable. Apply ±16V

to the indicated terminals. Then apply a low jitter signal

source to J2–J7. Observe the recommended input voltage

sine wave or square wave to connector J1. See Table 1

for the appropriate clock frequency. Note that J1 has a

50Ω termination resistor to ground.

Run the PScope™ software (Pscope.exe version K88 or

later) which can be downloaded from www.linear.com/

designtools/software.

Complete software documentation is available from the

Help menu. Updates can be downloaded from the Tools

menu. Check for updates periodically as new features

may be added.

The PScope software should recognize the DC2071A and

configure itself automatically.

Click the Collect button (See Figure 7) to begin acquiring

data. The Collect button then changes to Pause, which

can be clicked to stop data acquisition.

DC590 QUICK START PROCEDURE

IMPORTANT! To avoid damage to the DC2071A,

make sure that VCCIO (JP6) of the DC590 is set to

3.3V before connecting the DC590 to the DC2071A.

To use the DC590 with the DC2071A, it is necessary to

apply ±16V and ground to the ±16V and GND terminals

on the DC2071A. Connect the DC590 to a host PC with a

standard USB A/B cable. Connect the DC2071A to a DC590

USB serial controller using the supplied 14-conductor

ribbon cable. Apply a signal source to J2-J7. No clock

is required on J1 when using the DC590. The clock is

provided by the DC590.

Run the QuikEval™ software (quikeval.exe version K109

or later) which is available from www.linear.com/design-

tools/software. The correct control panel will be loaded

automatically. Click the Collect button (Figure 10) to begin

reading the ADC.