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PDF CDB3308 Data sheet ( Hoja de datos )
| Número de pieza | CDB3308 | |
| Descripción | Evaluation Board | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CDB3308 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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CDB3308
Evaluation Board for CS3308
Features
Single-ended Analog Inputs
Single-ended Analog Outputs
Supports AC and DC-Coupled Analog I/O
Flexible Serial Control I/O Headers
– Serial Control Input Header to
Accommodate On-board and External
Serial Controllers
– Serial Control Output Headers for
“Chaining” Serial Control Across Multiple
CDB3308 Evaluation Boards
– 3.3 V Logic Interface Level
Demonstrates Recommended Layout and
Grounding Arrangements
Minimal Power Supply Requirements
– ±5 V and Ground
Windows® Compatible Software Interface
– Easy and Intuitive Graphical Interface to
Channel and Master Volume Controls
– Supports USB and RS-232 PC
Connectivity
Description
The CDB3308 evaluation board is an excellent means
for evaluating the CS3308 analog volume control. Eval-
uation requires an analog signal source and analyzer,
power supplies, and a Windows PC compatible
computer.
Standard RCA phono jacks are provided to easily inter-
face external analog signals with the evaluation board.
Each of the CS3308’s inputs and outputs may be inde-
pendently AC or DC-coupled to their respective I/O
connectors.
The Windows software provides a GUI to make config-
uration of the CDB3308 easy. The software
communicates through the PC’s USB or Serial port to
configure the control port registers so that all features of
the CS3308 can be evaluated.
As an alternative to the serial control provided via a PC,
the evaluation board may be configured to accept exter-
nal control signals for operation in a user application
during system development.
To facilitate multi-CS3308 system design efforts, head-
ers are provided for connecting serial control signals
between multiple CDB3308 evaluation boards.
ORDERING INFORMATION
CDB3308
Evaluation Board
8-Channel
Passive
Inputs
AC/DC
Coupling
CS3308
8-Channel
Digitally Controlled
Analog Volume Control
AC/DC
Coupling
8-Channel
Passive
Outputs
USB/RS232
PC Interface
http://www.cirrus.com
PC or External
Serial Control Input
External
Serial Control Output
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
MAY '06
DS702DB2
1 page  
CDB3308
2. PC SOFTWARE CONTROL
The CDB3308 is designed for use with the Microsoft Windows based FlexGUI graphical user interface. This inter-
face provides comprehensive control over the CS3308’s internal registers via a PC’s USB or RS-232 port.
The FlexGUI software may be downloaded and installed from www.cirrus.com/msasoftware.
Step-by-step instructions for using the FlexGUI are provided as follows:
1. Download and install the FlexGUI software from www.cirrus.com/msasoftware.
2. Connect the CDB3308 to a host PC using the supplied USB cable or a 9-pin serial cable.
3. Apply positive power, negative power, and ground to the VA+, VA-, and GND binding posts respectively.
4. Launch the FlexGUI software. The GUI will load and be displayed.
5. Un-check the “Power Down CS3308” check box to allow audio to pass through the device.
2.1 CS3308 Controls Tab
The CS3308 Controls tab provides a high-level intuitive interface to many of the configuration options of the
CS3308. Control over the state of the CS3308’s MUTE and RESET input pins is also provided.
Figure 1. CS3308 Controls Tab
The Master X Mask check boxes are used to map each channel to the master controls. These check-boxes
reflect the state of their associated Master X Mask bits; when checked, the channel is un-masked.
The sliders facilitate control over the Ch X Volume registers, providing gain and attenuation in ½ dB steps.
The +¼ dB Gain check boxes are used to add an additional ¼ dB of gain to the volume level displayed for
each channel.
See the CS3308 datasheet for complete internal register descriptions.
DS702DB2
5
5 Page 
CDB3308
DS702DB2
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet CDB3308.PDF ] | |
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