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PDF CDB4350 Data sheet ( Hoja de datos )
| Número de pieza | CDB4350 | |
| Descripción | Evaluation Board | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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CDB4350
Evaluation Board for CS4350
Features
Description
No High Frequency Master Clock Required
Stand-Alone or PC GUI Board Control
CS8416 Receives S/PDIF-Compatible Digital
Audio
Headers for External PCM Audio Input
Demonstrates Recommended Layout and
Grounding Arrangements.
Requires Only a Digital Signal Source and
Power Supplies for a Complete Digital-to-
Analog Converter System
The CDB4350 evaluation board is an excellent platform
for quickly evaluating the CS4350 24-bit, 24-pin, stereo
D/A converter. Evaluation requires an analog signal an-
alyzer, a digital signal source, a PC for controlling the
CS4350 (only required for Control Port Mode), and a
power supply. Analog line-level outputs are provided via
RCA phono jacks.
The CS8416 digital audio receiver IC provides the sys-
tem timing necessary to operate the digital-to-analog
converter and will accept S/PDIF-compatible audio da-
ta. The evaluation board may also be configured to
accept external timing and data signals for operation in
a user application during system development.
ORDERING INFORMATION
CDB4350
Evaluation Board
Inputs for PCM
Clocks and Data
CS8416
Digital Audio
Interface
Hardware or
Software Board
Control
CS4350
Analog Outputs
and Filtering
Recovered Master
Clock
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
APRIL '06
DS691DB1
1 page  
9. BOARD CONNECTIONS AND SETTINGS
Board connections and settings are shown in Table 1, Table 2, and Table 3.
CDB4350
CONNECTOR
GND
+12V
-12V
S/PDIF IN - J1
S/PDIF IN - OPT1
PCM INPUT - J10
AOUTA, AOUTB
POUTA, POUTB
INPUT/OUTPUT
Input
Input
Input
Input
Input
Input
Output
Output
SIGNAL PRESENT
Ground connection from power supply
+12 V positive supply for the on-board filtering
-12 V negative supply for the on-board filtering
Digital audio interface input via coax
Digital audio interface input via optical
Input for master, serial, left/right clocks and serial data
RCA line level analog outputs from active output stage
RCA line level analog outputs from passive output stage
Table 1. System Connections
JUMPER
PURPOSE
J6, J21
Selects analog output
J3, J4, J7
Selects Supply Voltage for
CS4350
J38 Selects source of control data
J27 C2 micro programming
POSITION
*A
P
+5V
*+3.3V
*PC CONTROL
shunts removed
-
FUNCTION SELECTED
*CDB4350 outputs from AOUTA and AOUTB
CDB4350 outputs from POUTA and POUTB
Supplies +5.0 V to associated CS4350 supply
*Supplies +3.3 V to associated CS4350 supply
*Control from PC and on-board microcontroller
External control input using center and right columns
Reserved for factory use only
*Default Factory Settings.
Table 2. CDB4350 Jumper Settings
SWITCH
(Note 1)
S2
S1
PURPOSE
Resets CS8416 and CS4350
CS8416 Format Select
SFSEL[1:0]
CS4350 Format Select
DIF[2:0]
CS4350 De-emphasis Select
S4
CS4350 Popguard Enable
Selects PCM source for
CS4350
POSITION
1,2
1,2, 3
4
5
6
FUNCTION SELECTED
The CS8416 must be reset if switch S1 is changed
Default: SFSEL[1:0] = 00 (Closed). See CS8416 datasheet
for details.
Default: DIF[2:0] = 000 (Closed). See CS4350 datasheet
for details.
open = De-emphasis enabled
*closed = De-emphasis disabled.
open = Popguard enabled
*closed = Popguard disabled.
*open = CS8416
closed = PCM Header J10
*Default Factory Settings.
Table 3. CDB4350 Switch Settings
Note:
1. Switch settings take effect in Stand-Alone Mode only.
DS691DB1
5
5 Page 
Figure 6. Control Port
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet CDB4350.PDF ] | |
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