Cirrus Logic CRD48L10 - Manual (Page 27)

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4.1 Jumper Settings
Chapter 4
Quick Start for the CRD48L10-4in4out
The easiest use case of the CRD48L10-4in4out requires power (via the mini-USB connector) and some method of
listening to audio. The CRD48L10 is configured for USB power from a PC in
Fig. 4-1 , and the audio can be monitored
using headphones.
Figure 4-1. CRD48L10-4in4out Powered by PC, Configured for MP3 Playback over SPI
When the power switch, S8, is in the “ON” position, the board will be powered, and the MCU will initially configure the
system for MP3 playback over the SPI interface. Different input modes can be selected using input selection button S1,
as documented in
Chapter 3 .
4.1 Jumper Settings
Some of the 100-MIL Male Headers need to have shunts installed for the board to operate properly.
4.2 Powering Board
The CRD48L10 is powered through connector USB1. Use USB-A to USB Mini-B cable to power the board from either a
PC or a USB charging adapter. The USB1 connector does not provide USB control of the CRD48L10-4in4out.
Table 4-1. Default Jumper Settings
Header Description Reference Designators Default Configuration
Main Board Power P16 Installed
Probe Header Power P15 +1v8
CS48L10 Core Power P2 +1v0
Microphone Bias Power J8, J9 Installed