CDB5345 datasheet(13/27 Pages) CIRRUS

13 / 27 page

CDB5345

DS658DB1

6. CDB CONNECTORS, JUMPERS, AND SWITCHES

CONNECTOR

Reference

Designator INPUT/OUTPUT

SIGNAL PRESENT

+5V

Input

+5.0 V Power Supply

GND

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 / I2C control port signals

USB I/O

J37

Input/Output

USB connection to PC for SPI / I2C 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 / I2C 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

Input

Reset for the micro controller (U46).

PROGRAM FPGA

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

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