WM8734-EV1M 参数 Datasheet PDF下载

WM8734-EV1M

ADC DEFAULT SETUP

Figure 7 ADC Default Screen Settings

By pressing the ADC default button, the software writes to the device setting the Line_In through ADC

to SPDIF_Out path active. This is to ease the initial use of the WM8734 until the user becomes

familiar with both device and software operation.

+1.42V

to

+3.6V

+5V

GND

PARALLEL PORT

J1

0

5

6

J2

OPEN

J3

J4

J6

AGND

+2.7V

to

+3.6V

OPT_

SPDIF_

IN

SW2

RLINEIN

The SPDIF input is

required to provide

clocks for the

WM8734 audio

interface.

SPDIF_

IN

H1

SW3

1

1

1

OPT_

SPDIF_

OUT

SPDIF_

OUT

H2

J20

Figure 8 WM8734-EV1B Board Setup for ADC Operation

Note:

Setup for Slave Mode; SPI software control mode. The WM8734 registers must be set

accordingly by pressing the ADC button as described above.

w

1

2

3

4

1

SW1

J8

J9

1

J7

1

J10

LLINEIN

J14

1

1

ROUT

J15

LOUT

J16

J17

1

J18

1

J21

Rev 1.2 November 2002

11