CDB4344 Просмотр технического описания (PDF) - Cirrus Logic

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CDB4344

Evaluation Board for CS4344

Cirrus Logic 

CDB4344

JUMPER /

SWITCH

J4

PURPOSE

Selects source of voltage

for the CS4344 VA supply

J7

Provides contact points to

measure current

S1

Resets CS8416

S2

Sets clock source

Sets MCLK ratio of CS8416

POSITION

VA

+3.3V

*+5V

-

left

right

FUNCTION SELECTED

Voltage source is the +3.3V to +5V binding post

Voltage source is a +3.3V regulator

Voltage source is +5V binding post

Measure voltage across these nodes and divide

result by 10 to get current in Amps

The CS8416 must be reset if switch S2 is

changed

Sets clock source for CS4344 (open=J9, *closed

= CS8416)

Selects 128x (open) or 256x (*closed)

MCLK/LRCK ratio output for CS8416

*Default Factory Settings.

Table 2. CDB4344 Jumper Settings

7. ERRATA

CDB4344 Revision B.0

Switch S2 is oriented incorrectly on some boards (if open is away from binding posts) and thus

the 0 and 1 labels above and below are incorrect. Using closed for 0 and open for 1, the table

next to the switch will be correct.

DS613DB2

5

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