Datasheet

Jumpers and Control Utilities on Input-USB Board3

www.ti.com

5 Jumpers and Control Utilities on Input-USB Board3

5.1 RCA/OPTICAL Jumpers

• ADC1: The default is to have a jumper installed on pins 2 and 3. To input an external I2S data signal,

remove the jumper and connect the new I2S source using pins 3 and 4.

• MCLK: The default is to have a jumper installed on pins 2 and 3. To input an external MCLK signal,

remove the jumper and connect the new MCLK source using pins 3 and 4.

• SCLK: The default is to have a jumper installed on pins 2 and 3. To input an external SCLK signal,

remove the jumper and connect the new SCLK source using pins 3 and 4.

• LRCLK: The default is to have a jumper installed on pins 2 and 3. To input an external LRCLK signal,

remove the jumper and connect the new LRCLK source using pins 3 and 4.

• JP300 and JP301: Install for analog inputs of less than 1-V

RMS

; leave uninstalled for analog inputs from

1-V

RMS

to 2-V

RMS

• All other jumpers on the Input-USB Board3 have no functionality with the TAS5721-TAS5723EVM.

5.2 Switches

• S1 (RESET): Pressing the RESET switch resets the TAS572X device

• S2 (COAX/OPTO): Determines which digital input to use, RCA or optical.

• S3 (VOL DOWN): This switch has no function with the EVM

• S4 (VOL UP): This switch has no function with the EVM

• S5 (USB MUTE): This switch has no function with the EVM

• S6 (MUTE): This switch has no function with the EVM

• S7 (I2S SELECT): Selects the I2S source. When using the OPTO or RCA inputs, flip this switch to

SPDIF.

• S8 (PDN): Pressing PDN powers down the TAS572X.

5.3 LED Indicators

• 12 V: 12-V power is valid

• 5 V: 5-V power is valid

• 3.3 V: 3.3-V power is valid

• SPDIF-LOCK: SPDIF signal locked

• COAX: S2 is set to the COAX position

• OPTO: S2 is set to the OPTO position

• USB: S7 is set to the USB position

• SPDIF: S7 is set to the SPDIF position

• FAULT: not used with the EVM

• PDN: indicates that the PDN switch is asserted

• MUTE: not used with the EVM

• SHUTDOWN: not used with the EVM

• OTW: not used with the EVM

• DIGITAL: indicates that the digital input source is active

• ANALOG: indicates that the analog input source is active

TAS5721-TAS5723EVM Evaluation Module SLOU346–July 2012