CDB8420 Datasheet, PDF (4/14 Pages) Cirrus Logic – Evaluation Board

CDB8420
CONNECTOR
+5V
GND
OPTICAL INPUT
S/PDIF INPUT
AES3 INPUT
RS232
OPTICAL OUTPUT
S/PDIF OUTPUT
AES3 OUTPUT
J5
J6
J9
J10
INPUT/OUTPUT
SIGNAL PRESENT
Input
+5 Volt power
Input
Ground connection from power supply
Input
Digital Audio Interface optical input
Input
Digital Audio Interface coaxial input
Input
Digital Audio Interface XLR input
Input/Output Parallel RS232 port for connection to serial port of PC
Output
Digital Audio Interface optical output (always active)
Output
Digital Audio Interface coaxial output
Output
Digital Audio Interface XLR output
Input/Output I/O for RMCLK, ISCLK,ILRCK, and SDIN
Input/Output I/O for OLRCK, OSCLK, OMCK, and SDOUT
Input
10-pin header for external programming of Atmel AVR µC
Input/Output 12-pin header for CS8420 control by external µC
Table 1. System Connections
JUMPER
PURPOSE
POSITION
FUNCTION SELECTED
J11 Selects physical format of digital AES3 & S/PDIF Specifies input as either AES3 or S/PDIF type
audio interface input
OPTICAL Specifies input as OPTICAL type
J12 Enables AES3 INPUT
ENABLE AES3 INPUT enabled
DISABLE AES3 INPUT disabled
J13 Enables S/PDIF INPUT
ENABLE S/PDIF INPUT enabled
DISABLE S/PDIF INPUT disabled
J14 Enables OPTICAL INPUT
ENABLE OPTICAL INPUT enabled
DISABLE OPTICAL INPUT disabled
J16 Selects physical format of digital
AES3
Specifies output as AES3 XLR
audio interface output
S/PDIF
Specifies output as coaxial S/PDIF
J17 Enables S/PDFIF OUTPUT
ENABLE S/PDIF OUTPUT enabled
DISABLE S/PDIF OUTPUT disabled
J15 Enables HARDWARE MODE MUTE ENABLE Enables MUTE when in hardware mode 1
DISABLE Disables MUTE when in hardware mode 1
Table 2. CDB8420 Jumper Settings
4
DS245DB4