WM8750-EV1M
CONNECTION OF AN 8Ω MONO SPEAKER
The WM8750-EV1 can be set up to drive an 8Ω mono speaker from the R/LOUT2 outputs.
Figure 33 shows the setup required for a signal applied to the DAC signal path to be output
on a speaker being driven from the phono connectors J41 and J42. As stated in Table 7, the
speaker may also be attached to jumpers J37 and J38.
DBVDD
+1.8V
to
AVDD
+1.8V
to
DGND
+3.6V
+3.6V
AGND
PARALLEL PORT
J5
J4
J1
J2
+5V
J8
J6
RLINE
IN1
DCVDD
+1.42V
to
P E O
N
SW1
0
J10
SW3
1
2
6
4
5
3
1
+3.6V
SW4
SW2
J11
LLINE
IN1
H1
J13
RLINE -
IN2
SW6
J17
J15
SW5
SW7
J18
J20
J25
OPT
_IN
LLINE
IN2
J24
J23
J21
SPDIF_
IN
H2
RLINE
IN3
SW8
SW9
SW27
SW28
1
1
J33
J32
SPDIF_
OUT
1
1
J35
J34
J37
1
1
SW36
LLINE
IN3
J38
1
J31
1
J47
HPVDD
+1.8V
to
+3.6V
8
Figure 33 Recommended Mono Speaker Connection Setup
Note: LOUT2 = +ve output; ROUT2 = -ve output.
Rev 2.0, February 2005
44
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
