Test conditions and connections of demonstration board

AN4200

4/20

DocID023918 Rev 1

1

Test conditions and connections of demonstration

board

1.1

Power supply signal and interface connection

1.

2.

Connect the STEVAL-CCA053V1 interface board to the J4 connector

3.

Connect the S/PDIF signal cable to the RCA jack on the STEVAL-CCA035V1 board.

The signal source should be the Audio Precision equipment or a DVD player.

4.

Adjust the voltage level of the power supply. The voltage range of the DC power supply

is 4.5 V to 18 V.

5.

Connect the load to the connectors J1 and J3

1.2

Output configuration

The STA333IS demonstration board can be only configured for 2.0 channels and BTL

outputs.

1.3

Required equipment



Audio Precision (System 2700)

–

Audio Analyzer: Mod. SYS2722 -192K

–

Class-D filter: AUX-0025 filter

–

Multifunction module: DCX-127



DC power supply (4.5 V to 18 V)

–

Lambda Genesys Gen 80-19

–

HP 6038A



Digital oscilloscope: Tektronix TDS5054B



Digital multimeter: AGILENT Mod. 34410A



PC with APWorkbench control software installed