CDB4338 Просмотр технического описания (PDF) - Cirrus Logic
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CDB4338 Datasheet PDF : 14 Pages
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CDB4334/8/9
CONNECTOR
+5 V
GND
Digital input
Optical input
Digital I/O
AOUTLA
AOUTRA
AOUTLP
AOUTRP
INPUT/OUTPUT
input
+ 5 Volt power
SIGNAL PRESENT
input
input
input
input/output
output
output
output
output
ground connection from power supply
digital audio interface input via coax
digital audio interface input via optical
I/O for master, serial, left/right clocks and serial data
left channel analog output with 3-pole active filter
right channel analog output with 3-pole active filter
left channel analog output with single-pole passive filter
right channel analog output with single-pole passive filter
Table 1. System Connections
JUMPER
CSLR/FCK
M0
M1
M2
M3
PURPOSE
Selects channel for CS8414
channel status information
CS8414 mode selection
SCLK
Selects SCLK Mode
DEM_8414
HDR1-6
MCLK
Left Channel
Filter
Right Channel
Filter
Selects source of de-emphasis
control
Selects source of clocks and
audio data
Selects High-Rate or Base-Rate
Modes
Selects Active 3-pole or passive
single-pole filter
Selects Active 3-pole or passive
single-pole filter
POSITION
HI
LO
*Low
*High
*Low
*Low
INT
*EXT
*8414
DEM
*8414
EXT
x1
÷2
Active
Passive
Active
Passive
FUNCTION SELECTED
See CS8414 Datasheet for details
See CS8414 Datasheet for details
Internal SCLK Mode
External SCLK Mode
CS8414 de-emphasis
De-emphasis input static high
Selects CS8414 as source
Digital I/O header becomes an source
Selects Base Rate Mode
Selects High Rate Mode
Selects 3-pole active filter
Selects Single-pole passive filter
Selects 3-pole active filter
Selects Single-pole passive filter
*Default setting from factory
Notes:
The CS8414 data format requires the CS4334 to operate in the external serial clock mode.
Table 2. CDB4334 Jumper Selectable Options
26
DS248DB2
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