Texas Instruments DEM-DAI3010 manual 1.4Setting Functions

Setting Functions

-Data and a clock are supplied to the PCM3010 side of JP107.

-Set up FMT0 and FMT1 of SW101 according to the data format to be used.

-Set up DEMP0 and DEMP1 of SW101 for the desired de-emphasis of the DAC section and PWDN for the power-down setting.

1.4Setting Functions

All functions of the devices (PCM3010, DIR1703, DIT4096) on the DEM-DAI3010 are controlled by DIP switches or header pins on this PCB. Therefore, the DEM-DAI3010 does not require a microcontroller or software to transmit data to internal function-setting registers. For specific information on any device, see the data sheet for that device.

1.4.1Function Setting Switches and Header Pins

Table 1–3. Switches and Header Pins of the DEM-DAI3010

SW/JP No.	Item	Shape
SW001	S/PDIF input selection (optical/coax)	Toggle switch
SW002	Reset of DIR1703 and DIT4096	Pushbutton switch
SW003	Format and system clock setting of DIR1703	4-pole DIP switch
SW004	Output clock selection of DIR1703 (X’tal/Auto/PLL)	Toggle switch
SW005	Format and system clock setting of DIT4096	4-pole DIP switch
SW006	Channel status data setting of DIT4096	10-pole DIP switch
SW051	S/PDIF output selection (optical/coax)	Toggle switch
SW101	Setting of PCM3010 (format, de-emphasis, power down)	5-pole DIP switch
JP001	Crystal frequency and system clock setting of DIR1703	2⋅	5 header
JP107	Connection of S/PDIF I/O circuit and PCM3010	2⋅	7 header
JP101	Cutoff frequency setting of DAC output filter (L-ch)	2⋅	2 header
JP102	Cutoff frequency setting of DAC output filter (R-ch)	2⋅	2 header
JP103	Cutoff frequency setting of DAC output filter (L-ch)	2⋅	1 header
JP104	Cutoff frequency setting of DAC output filter (R-ch)	2⋅	1 header
JP105	Selection of L-ch ADC input terminal (CN101/CN103)	2⋅	2 header
JP106	Selection of R-ch ADC input terminal (CN102/CN104)	2⋅	2 header
CN057	The way of power supply of PCM3010 VDD (3.3 V)	2⋅	1 header

Note: The relation between the DIP switch setting (ON/OFF) and the setting of the IC input port is printed on the PCB. The DIP switch H position does not always set the IC input port level HIGH.

Toggle switch settings are printed on the PCB.

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