WM8973-EV1M
w
Rev 1.0, February 2005
9
LINKS, JUMPERS AND SWITCHES
LINKS AND JUMPERS
LINK/JUMPER STATUS
DESCRIPTION
J18 (BCLK)
OPEN
SHORT
Master mode
Slave mode
[default setting]
J20 (ADCLRC)
OPEN
SHORT
Master mode
Slave mode
[default setting]
J25 (DACLRC)
OPEN
SHORT
Master mode
Slave mode
[default setting]
J23
OPEN
SHORT
Master mode
Slave mode (Ties ADCLRC to DACLRC)
[default setting]
J32, J33, J34 and J35
OPEN
SHORT
OUT signals are AC coupled
[default setting]
OUT signals are not AC coupled
J37 (external speaker connection)
Pin 1 – AGND
Pin 2 – +ve speaker connection
J38 (external speaker connection)
Pin 1 – AGND
Pin 2 – -ve speaker connection
J6 (DC input connection)
Pin 1 – DC signal input
Pin 2 – AGND
J11 (DC input connection)
Pin 1 – DC signal input
Pin 2 – AGND
Table 7 Links
SWITCHES SWITCH
STATUS
DESCRIPTION
SW6
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.
SW3
(DATA FORMAT)
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
SW4
(Software Control)
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
3-wire (SPI) Control Mode
[default setting]
2-wire Control Mode
SW1, SW2
(R/Line Input 1 Select)
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
MIC Input Select (3.5mm Jack Socket)
Line Input Select (Phono Socket)
[default setting]
SW5, SW7
(R/Line Input 2 Select)
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
MIC Input Select (3.5mm Jack Socket)
Line Input Select (Phono Socket)
[default setting]
SW8, SW9
(R/Line Input 3 Select)
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
MIC Input Select (3.5mm Jack Socket)
Line Input Select (Phono Socket)
[default setting]
SW27, SW28
(R/LOUT 1 Select)
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
HP Output Select (3.5mm Jack Socket)
Line Output Select (Phono Socket)
[default setting]
SW36
Pins 1 and 2 SHORT
Pins 2 and 3 SHORT
Connects to OUT3 for HP output DC reference
Connects to GND for HP output reference
[default setting]
Table 8 Switches
Summary of Contents for WM8973-EV1B
Page 1: ...WM8973 EV1M Evaluation Board User Handbook Rev 1 0...
Page 3: ...WM8973 EV1M w Rev 1 0 February 2005 3 EVALUATION SUPPORT 44 IMPORTANT NOTICE 45 ADDRESS 45...
Page 21: ...WM8973 EV1M w Rev 1 0 February 2005 21 SCHEMATIC LAYOUT Figure 13 Functional Diagram...
Page 22: ...WM8973 EV1M w Rev 1 0 February 2005 22 Figure 14 Digital Input...
Page 23: ...WM8973 EV1M w Rev 1 0 February 2005 23 Figure 15 Software Control...
Page 24: ...WM8973 EV1M w Rev 1 0 February 2005 24 Figure 16 Level Shift...
Page 25: ...WM8973 EV1M w Rev 1 0 February 2005 25 Figure 17 Analogue Input...
Page 26: ...WM8973 EV1M w Rev 1 0 February 2005 26 Figure 18 WM8973...
Page 27: ...WM8973 EV1M w Rev 1 0 February 2005 27 Figure 19 Analogue Output...
Page 28: ...WM8973 EV1M w Rev 1 0 February 2005 28 Figure 20 Power...
Page 29: ...WM8973 EV1M w Rev 1 0 February 2005 29 WM8973 EV1B PCB LAYOUT Figure 21 Top Layer Silkscreen...
Page 30: ...WM8973 EV1M w Rev 1 0 February 2005 30 Figure 22 Top Layer...
Page 31: ...WM8973 EV1M w Rev 1 0 February 2005 31 Figure 23 Bottom Layer...
Page 32: ...WM8973 EV1M w Rev 1 0 February 2005 32 Figure 24 Bottom Layer Silkscreen...