- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄26509 > CS47028C-DQZ (CIRRUS LOGIC INC) PDF資料下載
參數(shù)資料
| 型號： | CS47028C-DQZ |
| 廠商： | CIRRUS LOGIC INC |
| 元件分類： | 數(shù)字信號處理 |
| 中文描述： | 0-BIT, 24.576 MHz, OTHER DSP, QFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, LEAD FREE, MS-026, LQFP-100 |
| 文件頁數(shù)： | 6/17頁 |
| 文件大?。?/td> | 479K |
| 代理商： | CS47028C-DQZ |
CS470xx Data Sheet
Audio SOC Processor Family
14
Copyright 2011 Cirrus Logic
DS787PP5
4.3.7 Sample Rate Converters (SRC)
All CS470xx devices have at least two internal hardware SRC modules. One is directly associated
with the ADCs and normally serves to convert data from the 96/192 kHz sampling rate of the ADCs
to another Fs appropriate for mixing with other audio in the system. If the ADCs are not being used,
this SRC can convert up to 4 channels of audio data from one input sample rate (Fsi) to another
output sample rate (Fso).
The other SRC module is directly associated with the DACs and normally serves to convert data
from the DSP into the 96 kHz sample rate needed by the DACs. If the DACs are not being used,
this SRC can convert up to 8 channels of audio data from the one input sample rate (Fsi) to another
output sample rate (Fso).
The CS47028 and CS47048 devices have an additional stand-alone 8-channel SRC module. This
SRC module can be used to make independent input clock domains synchronous (different Fs on
PCM input and S/PDIF Rx). The CS47024 has an additional 2-channel SRC module. The
CS47024 has the 8-channel SRC block.
4.3.8 Serial Control Port (I2C or SPI)
The on-chip serial control port is capable of operating as master or slave in either SPI or I2C modes.
Master/Slave operation is chosen by mode select pins when the CS470xx comes out of reset. The
serial clock pin can support frequencies as high as 25 MHz in SPI mode (SPI clock speed must
always be
(DSP Core Frequency/2)). The CS470xx serial control port also includes a pin for flow
control of the communications interface (SCP_BSY) and a pin to indicate when the DSP has a
message for the host (SCP_IRQ).
4.3.9 GPIO
Many of the CS470xx peripheral pins are multiplexed with GPIO. Each GPIO can be configured as
an output, an input, or an input with interrupt. Each input-pin interrupt can be configured as rising
edge, falling edge, active-low, or active-high.
4.3.10 PLL-based Clock Generator
The low-jitter PLL generates integer or fractional multiples of a reference frequency which are used
to clock the DSP core and peripherals. Through a second PLL divider chain, a dependent clock
domain can be output on the DAO port for driving audio converters. The CS470xx defaults to
running from the external reference frequency and is switched to use the PLL output after overlays
have been loaded and configured, either through master boot from an external FLASH or through
host control. A built-in crystal oscillator circuit with a buffered output is provided. The buffered
output frequency ratio is selectable between 1:1 (default) or 2:1.
4.3.11 Hardware Watchdog Timer
The CS470xx has an integrated watchdog timer that acts as a “health” monitor for the DSP. The
watchdog timer must be reset by the DSP before the counter expires, or the entire chip is reset.
This peripheral ensures that the CS470xx will reset itself in the event of a temporary system failure.
In stand-alone mode (i.e. no host MCU), the DSP will reboot from external FLASH. In slave mode
(i.e. host MCU present) a GPIO will be used to signal the host that the watchdog has expired and
the DSP should be rebooted and re-configured.
4.4 DSP I/O Description
4.4.1 Multiplexed Pins
Many of the CS470xx pins are multi-functional. For details on pin functionality please refer to the
CS470xx Hardware User’s Manual
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CS47048C-CQZ | |
| CS47024C-CQZ | |
| CS47048C-DQZ | |
| CS47028C-CQZ | |
| CS47024C-DQZ | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS47028C-DQZR | 功能描述:音頻 DSP IC 32bit A/D Process SOC DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| CS47048 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Audio SOC Processor Family |
| CS47048B-CQZ | 制造商:Cirrus Logic 功能描述:IC 32-BIT A/D PROCESSING SOC DSP - Bulk |
| CS47048B-CQZR | 功能描述:IC AUDIO SOC SGL 32BIT 100-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:CS470xx 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| CS47048B-DQZ | 制造商:Cirrus Logic 功能描述:IC 32-BIT A/D PROCESSING SOC DSP - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。