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参数资料
| 型号： | CS47024C-DQZ |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | 数字信号处理 |
| 中文描述： | 0-BIT, 24.576 MHz, OTHER DSP, QFP100 |
| 封装： | 14 X 14 MM, 1.40 MM HEIGHT, LEAD FREE, MS-026, LQFP-100 |
| 文件页数： | 15/17页 |
| 文件大小： | 479K |
| 代理商： | CS47024C-DQZ |
CS470xx Data Sheet
Audio SOC Processor Family
DS787PP5
Copyright 2011 Cirrus Logic
7
3. Code Overlays
The suite of software available for the CS470xx family consists of an operating system (OS) and a
library of overlays. The software components for the CS470xx family include:
1. OS/Kernel—Encompasses all non-audio processing tasks, including loading data from external
serial memory, processing host messages, calling audio-processing subroutines, error
concealment, etc
2. Decoder
—Any module that performs a compressed audio decode on IEC61937-packed data
delivered via S/PDIF Rx or IS input, such as Dolby Digital (AC3).
3. 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 Pro Logic IIx and
SRS Circle Surround II. Generally speaking, these modules increase the number of valid
channels in the audio I/O buffer.
4. 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 2 and Dolby
Virtual Speaker 2. Generally speaking, these modules reduce the number of valid channels in
the audio I/O buffer.
5. Post-processors—Any module that processes audio I/O buffer PCM data. Examples are bass
management, audio manager, tone control, EQ, delay, customer-specific effects, and any post-
processing algorithms available for the CS470xx DSP.
The bulk of standard overlays are stored in ROM within the CS470xx, 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/I2C 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 different post-processor is selected, the OS, does not need to be reloaded —
only the new post-processor.
Table 2 lists the different configuration options available. Please refer to the CS470xx Firmware
User’s Manual
for the latest listing of application codes and Cirrus Framework modules available.
See Table 3 which provides a summary of the available channels for each type of input and output
communication mode for members of the CS470xx family of DSPs.
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| CS47024C-DQZR | 功能描述:音频 DSP IC 32bit A/D Process SOC DSP RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| CS47028B-CQZR | 功能描述:IC AUDIO SOC SGL 32BIT 100-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:CS470xx 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| CS47028B-DQZR | 功能描述:IC AUDIO SOC SGL 32BIT 100-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:CS470xx 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| CS47028C-CQZ | 功能描述:音频 DSP IC 32bit A/D Process SOC DSP RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| CS47028C-CQZR | 功能描述:音频 DSP IC 32bit A/D Process SOC DSP RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
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