WM8750-EV1M Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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WM8750-EV1M

Evaluation Board User Handbook

Wolfson Microelectronics plc 

WM8750-EV1M

LINKS, JUMPERS AND SWITCHES

LINKS AND JUMPERS

J18 (BCLK)

J20 (ADCLRC)

J25 (DACLRC)

J23

J32, J33, J34 and J35

J37 (external speaker connection)

J38 (external speaker connection)

J6 (DC input connection)

J11 (DC input connection)

Table 7 Links

LINK/JUMPER STATUS

OPEN

SHORT

OPEN

SHORT

OPEN

SHORT

OPEN

SHORT

OPEN

SHORT

DESCRIPTION

Master mode

Slave mode [default setting]

Master mode

Slave mode [default setting]

Master mode

Slave mode [default setting]

Master mode

Slave mode (Ties ADCLRC to DACLRC) [default setting]

OUT signals are AC coupled [default setting]

OUT signals are not AC coupled

Pin 1 – AGND

Pin 2 – +ve speaker connection

Pin 1 – AGND

Pin 2 – -ve speaker connection

Pin 1 – DC signal input

Pin 2 – AGND

Pin 1 – DC signal input

Pin 2 – AGND

SW6

SWITCHES

SW3

(DATA FORMAT)

SW4

(Software Control)

SW1, SW2

(R/Line Input 1 Select)

SW5, SW7

(R/Line Input 2 Select)

SW8, SW9

(R/Line Input 3 Select)

SW27, SW28

(R/LOUT 1 Select)

SW36

Table 8 Switches

SWITCH STATUS

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

Pins 1 and 2 SHORT

Pins 2 and 3 SHORT

DESCRIPTION

After an input data format change has been made using

SW3, the CS8427 will only latch the new settings after

SW6 has been pressed and released.

1 2 3 4 5 6 DATA FORMAT

1 0 0 1 0 0 I2S Compatible [default setting]

1 0 0 0 0 1 24-bit Right Justified

1 0 0 0 0 0 Left Justified

3-wire (SPI) Control Mode [default setting]

2-wire Control Mode

MIC Input Select (3.5mm Jack Socket)

Line Input Select (Phono Socket) [default setting]

MIC Input Select (3.5mm Jack Socket)

Line Input Select (Phono Socket) [default setting]

MIC Input Select (3.5mm Jack Socket)

Line Input Select (Phono Socket) [default setting]

HP Output Select (3.5mm Jack Socket)

Line Output Select (Phono Socket) [default setting]

Connects to OUT3 for HP output DC reference

Connects to GND for HP output reference [default setting]

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Rev 2.0, February 2005

9

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