2 psia in to analog out and analog in to psia out, Cdb42l56 – Cirrus Logic CDB42L56 User Manual

Page 10

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10

DS851DB1

CDB42L56

3.2

PSIA In to Analog Out and Analog In to PSIA Out

The CS42L56 ADC and DAC performance can be tested by loading the “PSIA In to Analog Out -- Analog
In to PSIA Out”
quick setup file provided with the software package. The script configures the digital clock
and data signal routing on the board as shown in

Figure 2

. The quick setup scripts provided in the software

assume that a 24.000 MHz on-board oscillator is populated in Y1.

Line Output

B

A

HP Output

J21

32

32

16

16

J4

J12

B

A

AIN1A

AIN1B

AIN2A

AIN2B

AIN3A

AIN3B

J19

J20

LRCK

CS42L56

SCLK

SDIN

(SLAVE)

MCLK

SDOUT

LINEOUTB

LINEOUTA

HPOUTB

HPOUTA

AIN1A

AIN1B
AIN2A

AIN2B

AIN3A

AIN3B

FPGA

PLL

Divider

Divider

Divider

On-Board

Oscillator

Tx SRC

(CS8421)

(SLAVE)

ISCLK
ILRCK

SDIN

OSCLK

OLRCK

SDOUT

XTI

PSIA Tx (J78)

TX.SCLK
TX.LRCK
TX.SDOUT

PSIA Rx (J40)

RX.SCLK
RX.LRCK
RX.SDIN

TX.MCLK

RX.MCLK

Rx SRC

(CS8421)

(SLAVE)

ISCLK

ILRCK
SDIN

OSCLK
OLRCK

SDOUT

XTI

(MASTER)

(MASTER)

Figure 3. PSIA In to Analog Out and Analog In to PSIA Out

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