Cirrus Logic CDB42L56 - Manual (Page 8)

8 DS851DB1
CDB42L56
2. QUICK-START GUIDE
The following figure is a simplified quick-start guide made for user convenience. The guide configures the board with
a 1.8 V power supply to VLDO, VA and VCP and a 3.3 V power supply to VL. The user may choose from steps 7
through 10 depending on the desired measurement. Refer to
Section 3 on page 9 for details on how the various
components on the board interface with each other in different board configuration modes. Refer to Section 4 on
page 11 for descriptions on control settings in the Cirrus FlexGUI software.
.
Figure 1. Quick-Start Board Layout
1
2
3
4
5
6
7
Set jumper settings for VL to 3.3 V
and VCP, VLDO and VA to 1.8 V.
J48, J53, J52, J74, J7 and
J11 should be shunted. Set Board Power setting to USB.
Left pins on J109 and
J104 should be
shunted.
Provide digital inputs to the
board either through the S/
PDIF optical or RCA phono
connectors or through the
PSIA I/O header J78.
Receive digital outputs from the board either
through the S/PDIF optical or RCA phono
connectors or through the PSIA I/O header
J40.
Monitor analog output either via HP or Line Channel
RCA phono connectors or HP stereo jack.
*Select which output channel will be used through
“CODEC configuration” tab in software
Provide Analog
Inputs to board.
*Select which input
channel will be used
through “CODEC
configuration” tab in
software
8
9
10
Connect USB to board.
Open Flex GUI software
on PC and load quick
setup script.
Set desired jumper
settings for J12, J4,
J2, J3.