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EVM Description and Basics

2.2 Default Configuration and Connections

2.2.1 USB-MODEVM

Table 1 provides a list of the SW2 settings on the USB-MODEVM. For use with the

TLV320DAC3203EVM, SW-2 positions 1, 3, 4, 5, 6, and 7 must be set to ON, whereas SW-2.2 and SW-

2.8 must be set to OFF. If the TLV320DAC3203EVM is used with an external audio interface, SW2.4 and

SW2.5 also must be set to OFF and such interface must be connected as explained in Section 2.4

Table 1. USB-MODEVM SW2 Settings

SW-2 Switch Number Label Switch Description

1 A0 USB-MODEVM EEPROM I

C Address A0

ON: A0 = 0

OFF: A0 = 1

2 A1 USB-MODEVM EEPROM I

C Address A1

ON: A1 = 0

OFF: A1 = 1

3 A2 USB-MODEVM EEPROM I

C Address A2

ON: A2 = 0

OFF: A2 = 1

4 USB I

S I

S Bus Source Selection

ON: I

S Bus connects to TAS1020

OFF: I

S Bus connects to USB-MODEVM J14

5 USB MCK I

S Bus MCLK Source Selection

ON: MCLK connects to TAS1020

OFF: MCLK connects to USB-MODEVM J14

6 USB SPI SPI Bus Source Selection

ON: SPI Bus connects to TAS1020

OFF: SPI Bus connects to USB-MODEVM J15

7 USB RST RST Source Selection

ON: EVM Reset Signal comes from TAS1020

OFF: EVM Reset Signal comes from USB-MODEVM J15

8 EXT MCK External MCLK Selection

ON: MCLK Signal is provided from USB-MODEVM J10

OFF: MCLK Signal comes from either selection of SW2-5

SLAU441–April 2012 TLV320DAC3203EVM-K

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