参数资料
| 型号： | CDB48500-USB |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 6/23页 |
| 文件大小： | 0K |
| 描述： | KIT USB EVALUATION FOR CDB48500 |
| 标准包装： | 1 |
| 主要目的： | 音频，音频处理 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | CS485XX |
| 主要属性： | 32 位音频处理器，I2C 或 SPI |
| 次要属性： | 图形用户界面，12 通道模拟音频输入和输出，光学输出- S/PDIF |
| 已供物品： | 板，USB 卡，电源 |
| 相关产品： | CS48560-DQZR-ND - IC DSP HP 32BIT 12CH I/O 48-QFP CS48560-CQZR-ND - IC DSP HP 32BIT 12CH I/O 48-QFP CS48540-DQZR-ND - IC DSP HP 32BIT 8CH I/O 48-QFP |
| 其它名称： | 598-1284 |
3 Code Overlays
3 Code Overlays
The suite of software available for the CS485xx family consists of an operating system (OS) and a library of overlays. The
overlays have been divided into three main groups called Matrix-processors, Virtualizer-processors, and Post-processors.
All software components are defined below:
1. OS/Kernel —Encompasses all non-audio processing tasks, including loading data from external memory,
processing host messages, calling audio-processing subroutines, error concealment, etc.
2. Matrix-processor —Any Module that performs a matrix decode on PCM data to produce more output channels
than input channels (2 ? n channels). Examples are Dolby ProLogic IIx and DTS Neo:6. Generally speaking, these
modules increase the number of valid channels in the audio I/O buffer.
3. Virtualizer-processor —Any module that encodes PCM data into fewer output channels than input channels (n ? 2
channels) with the effect of providing “phantom” speakers to represent the physical audio channels that were
eliminated. Examples are Dolby Headphone ? and Dolby Virtual Speaker ? . Generally speaking, these modules
reduce the number of valid channels in the audio I/O buffer.
4. Post-processors —Any module that processes audio I/O buffer PCM data in-place after the matrix- or
virtualizer-processors. Examples are bass management, audio manager, tone control, EQ, delay,
customer-specific effects, etc.
The bulk of each overlay is stored in ROM within the CS485xx, but a small image is required to configure the overlays and
boot the DSP. This small image can either be stored in an external serial FLASH/EEPROM, or downloaded via a host
controller through the SPI ? /I 2 C ? serial port.
The overlay structure reduces the time required to reconfigure the DSP when a processing change is requested. Each
overlay can be reloaded independently without disturbing the other overlays. For example , when a new matrix-processor
is selected, the OS, virtualizer-, and post-processors do not need to be reloaded — only the new matrix-processor (the
same is true for the other overlays).
Table 3-1 lists the firmware available based on device selection. Refer AN298, CS485xx Firmware User’s
Manual for the latest listing of application codes and Cirrus Framework ? modules available.
Table 3-1. Device and Firmware Selection Guide
Device Suggested Application
CS48520-CQZ Digital TV, portable audio docking station, portable DVD, DVD mini/
receiver, multimedia PC speakers
CS48540-CQZ CS48520 features plus 8-channel car audio, DVD receiver
CS48540-DQZ
CS48560-CQZ CS48540 features plus 12-channel car audio, high-end digital TV, dual
CS48560-DQZ source/dual zone SACD
6
Channel Count Input/Output
Up to 4-channel in/4-channel out
Up to 8-channel in/8-channel out
Up to 12-channel in/12-channel out
Package
48-pin QFP
48-pin QFP
48-pin QFP
DS734F5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CDB48L10CSP | 制造商:Cirrus Logic 功能描述:EVAL BD - BASE BOARD FOR AUDIO DSP - Boxed Product (Development Kits) 制造商:Cirrus Logic 功能描述:EVAL BRD - BASE BOARD AUDIO DSP 制造商:Cirrus Logic 功能描述:Eval Base Board for Audio DSP |
| CDB48L10QFN | 制造商:Cirrus Logic 功能描述:EVAL BD - BASE BOARD FOR AUDIO DSP - Boxed Product (Development Kits) 制造商:Cirrus Logic 功能描述:EVAL BRD - BASE BOARD AUDIO DSP |
| CDB4923 | 制造商:Cirrus Logic 功能描述:Tools Development kit Kit Con |
| CDB49300 | 功能描述:音频 IC 开发工具 Eval Bd Mult-Std Aud Decdr. DSP RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| CDB49400 | 制造商:Cirrus Logic 功能描述:EVAL BD FOR CS49400 - Bulk |
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