Texas Instruments DEM-DAI3010 manual DEMP1 DEMP0, Pdown

Setting Functions

FMT1	FMT0	Input Data Format
L	L	24-bit, left-justified, MSB-first
L	H	24-bit, I2S (initial setting)
H	L	24-bit, right-justified, MSB-first
H	H	16-bit, right-justified, MSB-first
SW006:	Switch for setting channel-status data of the DIT4096. Note that the OFF state
	of this switch sets a HIGH level. Channel status data can set up if needed.
	Moreover, it is also possible to connect a microcontroller to CN002 and to write
	in channel-status data with the microcontroller. See the DIT4096 data sheet (TI
	literature number SBOS225) for details about the contents of a setting.

SW051: Switch to select the S/PDIF output connector (optical/coaxial). An S/PDIF output connector is chosen from optical (U052) and coaxial (CN058). The optical and coaxial output terminals cannot be used simultaneously.

SW101: Switch for setting the functions of the PCM3010. All the functions of PCM3010 are set up with this switch. Functions that can be set are the audio serial data I/O format, the DAC section de-emphasis, and power-down control.

FMT1	FMT0	DAC Input Data Format	ADC Output Data Format
L	L	24-bit, right-justified, MSB-first	24-bit, left-justified, MSB-first
L	H	16-bit, right-justified, MSB-first	24-bit, left-justified, MSB-first
H	L	24-bit, left-justified, MSB-first	24-bit, left-justified, MSB-first
H	H	24-bit, I2S (initial setting)	24-bit, I2S (initial setting)

DEMP1	DEMP0	DAC De-Emphasis
L	L	De-emphasis ON, 44.1-kHz
L	H	De-emphasis OFF (initial setting)
H	L	De-emphasis ON, 48-kHz
H	H	De-emphasis ON, 32-kHz

PDOWN	Power-Down Control
L	Power-down mode
H	Nomal operation (initial setting)

JP001: Setup of the crystal frequency and system clock for the DIR1703. When the system clock and the frequency of the crystal for the DIR1703 are changed, a shorting plug is inserted in only one position of JP001 according to the following tables. In order to avoid the loss of a shorting plug which is not being used, the plug is put in the header pin position labeled as OPEN. Because 24.576 MHz is used for a quartz crystal and the system clock is set as the 256 fS output in initial setting at the time of shipment, the shorting plug is attached in the CSBIT position.

Description1-7