4 setting functions – Texas Instruments DEM-DAI3010 User Manual

Page 11

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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.

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