Cdb connectors, jumpers, and switches, Table 4. system connections, Cdb5345 – Cirrus Logic CDB5345 User Manual
Page 13
CDB5345
DS658DB1
13
6. CDB CONNECTORS, JUMPERS, AND SWITCHES
CONNECTOR
Reference
Designator INPUT/OUTPUT
SIGNAL PRESENT
+5V
J1
Input
+5.0 V Power Supply
GND
J2
Input
Ground Reference
S/PDIF TX
J15
Output
CS8406 digital audio output via coaxial cable
S/PDIF TX
OPT2
Output
CS8406 digital audio output via optical cable
RS232 I/O
J42
Input/Output
Serial connection to PC for SPI / I
2
C control port signals
USB I/O
J37
Input/Output
USB connection to PC for SPI / I
2
C control port signals.
Not Available.
PCM1 I/O
J10
Input/Output
I/O for Serial Audio Clocks & Data
CONTROL
J17
Input/Output
I/O for external SPI / I
2
C control port signals.
MICRO JTAG
J36
Input/Output
I/O for programming the micro controller (U46).
FPGA-JTAG
J18
Input/Output
I/O for programming the FPGA (U35).
MICRO RESET
S2
Input
Reset for the micro controller (U46).
PROGRAM FPGA
S1
Input
Reset for the FPGA (U35).
PINA
PINB
J38
J39
Input
RCA phono jacks for analog input signal to CS5345. Pas-
sive input filter.
AINA
AINB
J40
J41
Input
RCA phono jacks for analog input signal to CS5345. Active
input buffer.
MICIN1
MICIN2
J21
J34
Input
1/8“ TRS jacks for microphone input.
AOUTA
AOUTB
J14
J16
Output
RCA phono jacks for PGA analog outputs. Active output
buffer.
Table 4. System Connections