DS773DB1
7
CDB42L55
2.6
Oscillator
The socketed on-board oscillator can be selected as the system master clock source by using the selections
on the “Board Configuration” tab of the Cirrus FlexGUI.
‘Software Mode Control” on page 10
provides con-
figuration details.
The oscillator is mounted in pin sockets, allowing easy removal or replacement. The device footprint on the
board will accommodate full- or half-can-sized oscillators.
2.7
CS42L55
Audio CODEC
A complete description of the CS42L55(U1) can be found in the CS42L55 product data sheet.
The CS42L55 is configured using the Cirrus FlexGUI. The device configuration registers are accessible via
the “Register Maps” tab of the Cirrus FlexGUI software. This tab provides low-level control of each bit. For
easier configuration, additional tabs provide high-level control.
‘Software Mode Control” on page 10
provides
configuration details.
Summary of Contents for CDB42L55
Page 25: ...DS773DB1 25 CDB42L55 8 CDB42L55 SCHEMATICS Figure 37 CS42L55 Analog I O Schematic Sheet 1 ...
Page 26: ...26 DS773DB1 CDB42L55 Figure 38 S PDIF Digital Interface Schematic Sheet 2 ...
Page 27: ...DS773DB1 27 CDB42L55 Figure 39 PLL oscillator and external I O connections Schematic Sheet 3 ...
Page 28: ...28 DS773DB1 CDB42L55 Figure 40 Microcontroller and FPGA Schematic Sheet 4 ...
Page 29: ...DS773DB1 29 CDB42L55 Figure 41 Power Schematic Sheet 5 ...
Page 30: ...30 DS773DB1 CDB42L55 9 CDB42L55 LAYOUT Figure 42 Silk Screen ...
Page 31: ...DS773DB1 31 CDB42L55 Figure 43 Top Side Layer ...
Page 32: ...32 DS773DB1 CDB42L55 Figure 44 GND Layer 2 ...
Page 33: ...DS773DB1 33 CDB42L55 Figure 45 Power Layer 3 ...
Page 34: ...34 DS773DB1 CDB42L55 Figure 46 Bottom Side Layer ...
Page 35: ...DS773DB1 35 CDB42L55 10 REVISION HISTORY Revision Changes DB1 Initial Release ...
