Texas Instruments TLV320AIC3107EVM-K quick start Power Connections

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			Table 2. List of Stand-alone Jumpers (continued)
Jumper	Jumper	Default
Number	Type	Position	Jumper Description
W17	2-pin	Open	Selects onboard EEPROM as TAS1020B Firmware Source.(Not Used). Note that for this EVM the Firmware Source
			EEPROM is on the USB-MODEVM.
W18	2-pin	Open	Selects SWOUTP to J-18. Caution: Make sure that the Class-D Output is Disabled before Installing W18.
W19	2-pin	Open	Selects SWOUTM to J-18. Caution: Make sure that the Class-D Output is Disabled before Installing W19.

Table 3. Switch SW1 Configurations

EVM	Connector Terminal Number	SW1 Switch Position = DIFF (Differential Inputs)		SW1 Switch Position = SE = Single-Ended
Connector	(Terminal 2 is always Ground.)			Inputs
J6	Terminal 1	Input to AIC3107-pin 4 = LINE1LP		Input to AIC3107-pin 4 = LINE1LP
	Terminal 3	Input to AIC3107-pin 3 = MICDET/LINE1LM		Input to AIC3107-pin 5 = LINE1RP
J7	Terminal 1	Input to AIC3107-pin 5	= LINE1RP	Input to AIC3107-pin 9 = MIC3R/LINE2RM
	Terminal 3	Input to AIC3107-pin 6	= MIC3L/LINE1RM	Input to AIC3107-pin 6	= MIC3L/LINE1RM
J8	Terminal 1	Input to AIC3107-pin 7	= LINE2LP	Input to AIC3107-pin 7	= LINE2LP
	Terminal 3	Input to AIC3107-pin 8	= LINE2RP/LINE2LM	Input to AIC3107-pin 8	= LINE2RP/LINE2LM

Table 4. Switch SW2 Configurations

SW2 Switch Position = CAP

47-μF capacitors in-line with HPLOUT and HPROUT to J10 (Referenced to Ground)

SW2 Switch Position = Capacitor-less

HPLOUT and HPROUT Direct Coupled to J10 (Referenced to HPCOM)

Table 5. Switch SW3 Configurations

SW3 Switch Position = EXT.	SW3	Switch Position = +5VA
User Provides an External Power Supply for SVDD (Class-D Power Amplifier	EVM	5-VDC Supply used for SVDD (Class-D Power Amplifier Supply)
Supply), Max Value = 5 VDC

2.3Power Connections

The TLV320AIC3107 can be powered independently when being used in stand-alone operation or by the USB-MODEVM when it is plugged onto the motherboard.

2.3.1Stand-Alone Operation

When used as a stand-alone, power is applied to J15 directly; be sure to reference the supplies to the appropriate grounds on that connector.

CAUTION

Before applying power to the EVM, you must verify that all power supplies are within the safe operating limits as indicated in the TLV320AIC3107 data sheet.

J15 provides connection to the common power bus for the TLV320AIC3107EVM. Power is supplied on the pins listed in Table A-3.

The TLV320AIC3107EVM-K motherboard (the USB-MODEVM Interface board) supplies power to J15 of the TLV320AIC3107EVM. Power for the motherboard is supplied either through its USB connection or via terminal blocks on that board.

2.3.2USB-MODEVM Operation

The USB-MODEVM Interface board can be powered from several different sources:

∙USB

∙6-Vdc to 10-Vdc ac/dc external wall supply (not included)

6 TLV320AIC3107EVM-K SLAU261–November 2008

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