参数资料
型号: ADSP-21469KBCZ-3
厂商: Analog Devices Inc
文件页数: 40/72页
文件大小: 0K
描述: IC DSP 32/40BIT 400MHZ 324BGA
产品变化通告: Pin Function Change 08/Mar/2012
标准包装: 1
系列: SHARC®
类型: 浮点
接口: DAI,DPI,EBI/EMI,I²C,SCI,SPI,SSP,UART/USART
时钟速率: 400MHz
非易失内存: 外部
芯片上RAM: 5Mb
电压 - 输入/输出: 3.30V
电压 - 核心: 1.05V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 324-BGA,CSPBGA
供应商设备封装: 324-CSPBGA
包装: 托盘
ADSP-21469
Rev. 0
|
Page 45 of 72
|
June 2010
Sample Rate Converter—Serial Input Port
The ASRC input signals are routed from the DAI_P20–1 pins
using the SRU. Therefore, the timing specifications provided in
Table 41 are valid at the DAI_P20–1 pins.
Table 41. ASRC, Serial Input Port
Parameter
Min
Max
Unit
Timing Requirements
tSRCSFS
1
Frame Sync Setup Before Serial Clock Rising Edge
4
ns
tSRCHFS
1
Frame Sync Hold After Serial Clock Rising Edge
5.5
ns
tSRCSD
1
Data Setup Before Serial Clock Rising Edge
4
ns
tSRCHD
1
Data Hold After Serial Clock Rising Edge
5.5
ns
tSRCCLKW
Clock Width
(tPCLK × 4) ÷ 2 – 1
ns
tSRCCLK
Clock Period
tPCLK × 4
ns
1 The serial clock, data, and frame sync signals can come from any of the DAI pins. The serial clock and frame sync signals can also come via PCG or SPORTs. PCG’s input
can be either CLKIN or any of the DAI pins.
Figure 30. ASRC Serial Input Port Timing
DAI_P20–1
(SCLK)
SAMPLE EDGE
DAI_P20–1
(FS)
DAI_P20–1
(SDATA)
tSRCCLK
tSRCCLKW
tSRCSFS
tSRCHFS
tSRCHD
tSRCSD
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