4 setting functions – Texas Instruments DEM-DAI3010 User Manual
Page 11
Setting Functions
1-5
Description
-
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.
1.4
Setting 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.
1.4.1
Function 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 V
DD
(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.