Cirrus Logic CDB42L56 - Manual (Page 18)

18 DS851DB1
CDB42L56
5. JUMPER SETTINGS AND SYSTEM CONNECTIONS
CONNECTOR REF INPUT/OUTPUT SIGNAL PRESENT
EXT. +5V TP9 Input +5V power supply for evaluation board
GND TP10 Input GND reference from power supply
Ext. Input TP6 Input +4.5V external power supply for buck converter
GND TP7 Input GND reference from power supply
AAA BT1
BT2
BT3 Input
Input
Input Socket for +1.5 V AAA batteries for buck converter
RS232 J95 Input/Output RS232 serial port connection to PC for I²C control port signals
USB I/O J94 Input/Output USB connection to PC for I²C control port signals
S/PDIF Optical IN OPT3 Input CS8416 digital audio input via optical cable
S/PDIF Optical OUT OPT2 Output CS8406 digital audio output via optical cable
S/PDIF COAX IN J61 Input CS8416 digital audio input via coaxial cable
S/PDIF COAX OUT J68 Output CS8406 digital audio input via coaxial cable
MICRO RESET S4 Input Reset for microcontroller (U84)
CS42L56 RESET S1 Input Reset for CS42L56 (U3)
FPGA Program S2 Input Reload Xilinx program into the FPGA from Flash (U14)
FPGA JTAG J75 Input/Output I/O for programming the FPGA (U5)
MICRO JTAG J110 Input/Output I/O for programming the microcontroller (U84)
AP PSIA Transmitter J78 Input/Output Digital Data and Clocks to CS42L56
AP PSIA Receiver J40 Input/Output Digital Data and Clocks from CS42L56
AIN1B
AIN1A
AIN2B
AIN2A
AIN3B
AIN3A J14
J10
J21
J18
J23
J24 Input
Input
Input
Input
Input
Input RCA connectors for analog inputs to CS42L56
AIN1
AIN2
AIN3 J22
J13
J9
Input
Input
Input Stereo jacks for analog inputs to CS42L56
HP Channel A
HP Channel B J38
J37 Output
Output RCA connector for headphone analog output from CS42L56
Line Channel A
Line Channel B J15
J17 Output
Output RCA connector for line analog output from CS42L56
HP Stereo Connection J1 Output Stereo jack for headphone stereo output from CS42L56
Oscillator Y1 Input Oscillator for providing master clock for system timing
I/O Header J104 Input/Output I/O for Clocks and Data
S/W CONTROL J109 Input/Output I/O for external I²C control port signals
Test Points TP1-TP2,
TP34-TP36,
TP11-TP16,
TP23, TP25,
TP26, TP28
Outputs Test Points for monitoring signals to and from CS42L56
Table 2. System Connections