Cirrus-logic CDB42L55 Bedienungsanleitung PDF herunterladen (Seite 17)

DS773DB1 17

CDB42L55

5 SYSTEM CONNECTIONS AND JUMPERS

CONNECTOR REF INPUT/OUTPUT SIGNAL PRESENT

EXT. +5V TP9 Input +5V power supply

GND TP10 Input GND reference

Ext. Input TP6 Input +4.5V external power supply for U4 buck regulator

GND TP7 Input GND reference

AAA BT1

BT2

BT3

Input

Socket for +1.5 V AAA batteries

RS232 J95 Input/Output RS232 serial port connection to PC

USB I/O J94 Input/Output USB connection to PC for I²C control port signals

SPDIF Optical IN OPT3 Input CS8416 digital audio input via optical cable

SPDIF Optical OUT OPT2 Output CS8406 digital audio output via optical cable

SPDIF COAX IN J61 Input CS8416 digital audio input via coaxial cable

SPDIF COAX OUT J68 Output CS8406 digital audio input via coaxial cable

MICRO RESET S4 Input Reset for microcontroller (U84)

CS42L55 RESET S1 Input Reset for CS42L55 (U1)

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 Digital Outputs to CS42L55 (typically derived from an Audio Precision Pro-

grammable Serial Interface Adapter)

AP PSIA Receiver J40 Output Digital I/O from CS42L55 (typically derived from an Audio Precision Pro-

grammable Serial Interface Adapter)

MCLK

SCLK

LRCK

ADC.SDOUT

DAC.SDIN

J77

J42

J45

J46

J47

Input/Output

Output

Input

Buffered Digital I/O Interface to CS42L55

AIN1B

AIN1A

AIN2B

AIN2A

J14

J10

Input

RCA connectors for analog inputs to CS42L55

HP Channel A

HP Channel B

J38

J37

Output

RCA connector for headphone analog output from CS42L55

Line Channel A

Line Channel B

J15

J17

Output

RCA connector for line analog output from CS42L55

HP Stereo Connection J1 Output Stereo jack for headphone stereo output from CS42L55

Oscillator Y1 Input Oscillator for providing master clock for system timing

I/O Header J104 Input/Output Unbuffered Digital I/O Interface to CS42L55

S/W CONTROL J109 Intput/Output I/O bus for external I²C control port signals

Table 1. System Connections

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 35 36

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