WM8778-EV1M
w
Rev 1.1, February 2004
23
LINE SETUP
By pressing the ‘Line Setup’ button, the software writes to the device setting the AINL/R
through the analogue path to the VOUTL/R outputs. As with the previous configurations, this
is to ease the initial use of the WM8778 until the user becomes familiar with both device and
software operation.
Note: The WM8778 does not require an MCLK to operate in this mode. If the ADC or DAC
are used then the MCLK would be required.
PA
R
A
L
L
E
L
POR
T
1
2
3
4
5
6
OP E
N
AGND
AVDD
+2.7V
to
+5.5V
DGND
DVDD
+2.7V
to
+3.6V
VO
U
T
L
VOU
T
R
OPT
_IN
SPDIF_
IN
SPDIF_
OUT
H1
J2
SW1
SW2
J1
J5
H3
J11
1
J9
1
1
J4
J3
H2
J8
1
J12
1
J14
1
J16
1
H4
SW3
+5v
0
1
J22
J23
+12v
-12v
AINL
AINR
UNFILT_
VOUTL
UNFILT_
VOUTR
1
1
SW5
1
SW6
J17
1
1
1
1
SW7
1
LNK3
LNK5
LNK6
LNK7 LNK4
SW4
1
1
Figure 12 Recommended Line setup
Summary of Contents for WM8778-EV1B
Page 1: ...WM8778 EV1B Evaluation Board User Handbook Rev 1 1...
Page 25: ...WM8778 EV1M w Rev 1 1 February 2004 25 SCHEMATIC LAYOUT Figure 13 Functional Diagram...
Page 26: ...WM8778 EV1M w Rev 1 1 February 2004 26 Figure 14 Digital Input...
Page 27: ...WM8778 EV1M w Rev 1 1 February 2004 27 Figure 15 Software Control...
Page 28: ...WM8778 EV1M w Rev 1 1 February 2004 28 Figure 16 Level Shift...
Page 29: ...WM8778 EV1M w Rev 1 1 February 2004 29 Figure 17 Analogue Input and Output Mute...
Page 30: ...WM8778 EV1M w Rev 1 1 February 2004 30 Figure 18 WM8778...
Page 31: ...WM8778 EV1M w Rev 1 1 February 2004 31 Figure 19 Analogue Output...
Page 32: ...WM8778 EV1M w Rev 1 1 February 2004 32 Figure 20 Power...
Page 33: ...WM8778 EV1M w Rev 1 1 February 2004 33 WM8778 EV1B PCB LAYOUT Figure 21 Top Layer Silkscreen...
Page 34: ...WM8778 EV1M w Rev 1 1 February 2004 34 Figure 22 Top Layer...
Page 35: ...WM8778 EV1M w Rev 1 1 February 2004 35 Figure 23 Bottom Layer...
Page 36: ...WM8778 EV1M w Rev 1 1 February 2004 36 Figure 24 Bottom Layer Silkscreen...
