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CDB5343

CDB5343: Evaluation Board for CS5343

Cirrus Logic 

CDB5343

8. CONNECTORS

Table 1 lists the connectors on the CDB5343, the reference designator of each connector, the directionality, and

the associated signal.

REFERENCE

CONNECTOR DESIGNATOR INPUT/OUTPUT

+5V

J2

INPUT

GND

J1

INPUT

AINR

J7

INPUT

AINL

J5

INPUT

Co-axial

J6

OUTPUT

Optical

J9

OUTPUT

I/O HDR

J3

INPUT/OUTPUT

SIGNAL

+5 V power to crystal oscillator and DC voltage regulator

Ground connection from the power supply

Analog input right channel

Analog input left channel

Digital audio (S/PDIF) output

Digital audio (S/PDIF) output

Master Clock, Serial Clock, Left/Right Clock, SDOUT

Table 1. System Connections

9. JUMPER AND SWITCH SETTINGS

The user can fully configure the CDB5343 with a bank of six DIP switches (S1) and a single jumper setting on header

J4.

9.1 Jumper J4

This jumper selects the magnitude of VA, either 3.3 V or 5 V. The CS5343 is a single-supply device; there-

fore the magnitude of VA affects the full-scale analog input voltage as well as the digital I/O voltage. Digital

I/O is always fixed at VA, and the full-scale input is nominally 0.56xVA Vpp, as specified in the CS5343 data

sheet. If the user selects 5 V, the CS5343 full-scale analog input voltage is 2.82 Vpp (1 Vrms) and the digital

I/O is set to 5 V. If 3.3 V is selected, the full-scale analog input voltage is 1.86 Vpp (660 mVrms) and digital

I/O is 3.3 V.

9.2 Switch S1

Table 2 shows the available settings for S1 with the default settings.

CS5343

CS8406

MCLK

SCLK, LRCK

SPEED

MCLK/LRCK

OPEN

MASTER (default)

MASTER

FROM HDR

FROM HDR

DSM

256x (default)

CLOSED

SLAVE

SLAVE (default)

TO HDR (default)

TO HDR (default)

SSM (default)

384x

Table 2. CDB5343 S1 Settings

9.2.1

CS5343

This switch configures the CS5343 for either Master Mode or Slave Mode operation. When set as clock

Master, the CS8406 must be set to “Slave” and “SCLK, LRCK” must be set to “TO HDR.” When CS5343

is configured for Slave Mode, the CS8406 must be set for Master Mode, or “SCLK, LRCK” must be set to

“FROM HDR.”

6

DS687DB2

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