WEHI WE
參數(shù)資料
型號(hào): ADV202BBCZRL-150
廠商: Analog Devices Inc
文件頁(yè)數(shù): 6/40頁(yè)
文件大?。?/td> 0K
描述: IC CODEC VIDEO 150MHZ 144CSPBGA
標(biāo)準(zhǔn)包裝: 1,000
類型: JPEG2000 視頻編解碼器
分辨率(位): 16 b
三角積分調(diào)變: 無(wú)
電壓 - 電源,模擬: 1.5V,3.3V
電壓 - 電源,數(shù)字: 1.5V,3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 144-BGA,CSPBGA
供應(yīng)商設(shè)備封裝: 144-CSPBGA(13x13)
包裝: 帶卷 (TR)
ADV202
Data Sheet
Rev. D | Page 14 of 40
04723-
024
DREQ
DACK
WEFB
HDATA
WEHI
WELO
tDACKSU
tHD
tSU
0
1
13
14
15
tDREQWAIT
tDREQRTN
Figure 15. Burst Write Cycle for Fly-By DMA Mode
(DREQ Pulse Width Is Programmable)
EXTERNAL DMA MODE—FIFO READ, BURST MODE
Table 9.
Parameter
Description
Min
Typ
Max
Unit
DREQPULSE
DREQ Pulse Width1
1
15
JCLK cycles2
t
DREQRTN
RD to DREQ Deassert (DR × PULS = 0)
2.5
3.5 × JCLK + 7.5 ns
JCLK cycles
t
DACKSU
DACK to RD Setup
0
ns
t
RD
RD to Data Valid
2.5
9.7
ns
t
HD
Data Hold
2.5
ns
RD
LO
RD Assert Pulse Width
1.5
JCLK cycles
RD
HI
RD Deassert Pulse Width
1.5
JCLK cycles
t
DREQWAIT
Last Burst Access to Next DREQ
2.5
3.5 × JCLK + 7.5 ns3
JCLK cycles
1 Applies to assigned DMA channel, if EDMOD0 or EDMOD1[14:11] is programmed to a value that is not 0. Pulse width depends on the value programmed.
2 For a definition of JCLK, see the PLL section.
3 If sufficient space is available in FIFO.
04723-
025
DREQ
DACK
RD
HDATA
RDHI
RDLO
tDACKSU
tHD
0
1
13
14
15
tDREQWAIT
DREQPULSE
tRD
Figure 16. Burst Read Cycle for DREQ/DACK DMA Mode for Assigned DMA Channel
(EMOD0/EDMOD1[14:11] NOT Programmed to a Value of 0)
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