Cirrus-logic CRD48L10 Manual de usuario descargar pdf (Pagina 27)

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

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 43 44

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Cirrus-logic CRD48L10 Manual de usuario Pagina 27