參數(shù)資料
型號: ADSP-21469KBCZ-3
廠商: Analog Devices Inc
文件頁數(shù): 41/72頁
文件大?。?/td> 0K
描述: IC DSP 32/40BIT 400MHZ 324BGA
產(chǎn)品變化通告: Pin Function Change 08/Mar/2012
標(biāo)準(zhǔn)包裝: 1
系列: SHARC®
類型: 浮點
接口: DAI,DPI,EBI/EMI,I²C,SCI,SPI,SSP,UART/USART
時鐘速率: 400MHz
非易失內(nèi)存: 外部
芯片上RAM: 5Mb
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.05V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 324-BGA,CSPBGA
供應(yīng)商設(shè)備封裝: 324-CSPBGA
包裝: 托盤
Rev. 0
|
Page 46 of 72
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June 2010
ADSP-21469
Sample Rate Converter—Serial Output Port
For the serial output port, the frame sync is an input and it
should meet setup and hold times with regard to the serial clock
on the output port. The serial data output has a hold time and
delay specification with regard to serial clock. Note that the
serial clock rising edge is the sampling edge, and the falling edge
is the drive edge.
Table 42. ASRC, Serial Output 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
tSRCCLKW
Clock Width
(tPCLK × 4) ÷ 2 – 1
ns
tSRCCLK
Clock Period
tPCLK × 4
ns
Switching Characteristics
tSRCTDD
1
Transmit Data Delay After Serial Clock Falling Edge
9.9
ns
tSRCTDH
1
Transmit Data Hold After Serial Clock Falling Edge
1
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 31. ASRC Serial Output Port Timing
DAI_P20–1
(SCLK)
SAMPLE EDGE
DAI_P20–1
(FS)
DAI_P20–1
(SDATA)
tSRCCLK
tSRCCLKW
tSRCSFS
tSRCHFS
tSRCTDD
tSRCTDH
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