參數(shù)資料
型號: AD9849AKSTZRL
廠商: Analog Devices Inc
文件頁數(shù): 4/32頁
文件大?。?/td> 0K
描述: IC CCD SIGNAL PROC 12BIT 48LQFP
標(biāo)準(zhǔn)包裝: 2,000
類型: CCD 信號處理器,12 位
輸入類型: 邏輯
輸出類型: 邏輯
接口: 3 線串口
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 帶卷 (TR)
REV. A
AD9848/AD9849
–12–
SERIAL INTERFACE TIMING
SDATA
A0
A1
A2
A4
A5
A6
A7
D0
D1
D2
D3
D4
D5
XX
SCK
SL
A3
NOTES
1. SDATA BITS ARE LATCHED ON SCK RISING EDGES.
2. 14 SCK EDGES ARE NEEDED TO WRITE ADDRESS AND DATA BITS.
3. FOR 16-BIT SYSTEMS, TWO EXTRA DUMMY BITS MAY BE WRITTEN. DUMMY BITS ARE IGNORED.
4. NEW DATA IS UPDATED AT EITHER THE SL RISING EDGE, OR AT THE HD FALLING EDGE AFTER THE NEXT VD FALLING EDGE.
5. VD/HD UPDATE POSITION MAY BE DELAYED TO ANY HD FALLING EDGE IN THE FIELD USING THE UPDATE REGISTER.
VD
HD
SL UPDATED
VD/HD UPDATED
tDS
tDH
tLS
tLH
Figure 3a. Serial Write Operation
SDATA
A0
A1
A2
A4
A5
A6
A7
D0
D1
D2
D3
D4
D5
SCK
SL
A3
NOTES
1. MULTIPLE SEQUENTIAL REGISTERS MAY BE LOADED CONTINUOUSLY.
2. THE FIRST (LOWEST ADDRESS) REGISTER ADDRESS IS WRITTEN, FOLLOWED BY MULTIPLE 6-BIT DATA-WORDS.
3. THE ADDRESS WILL AUTOMATICALLY INCREMENT WITH EACH 6-BIT DATA-WORD (ALL 6 BITS MUST BE WRITTEN).
4. SL IS HELD LOW UNTIL THE LAST DESIRED REGISTER HAS BEEN LOADED.
5. NEW DATA IS UPDATED AT EITHER THE SL RISING EDGE, OR AT THE HD FALLING EDGE AFTER THE NEXT VD FALLING EDGE.
D0
D1
D2
D3
D4
D5
D0
...
DATA FOR STARTING
REGISTER ADDRESS
DATA FOR NEXT
REGISTER ADDRESS
D2
D1
Figure 3b. Continuous Serial Write Operation
COMPLETE REGISTER LISTING
Table I.
Register
Description
Register
Description
oprmode
AFE Operation Modes
h1drv
H1 Drive Current
ctlmode
AFE Control Modes
h2drv
H2 Drive Current
preventpdate
Prevents Loading of VD-Updated Registers
h3drv
H3 Drive Current
readback
Enables Serial Register Readback Mode
h4drv
H4 Drive Current
vdhdpol
VD/HD Active Polarity
rgpol
RG Polarity
fieldval
Internal Field Pulse Value
rgposloc
RG Positive Edge Location
hblkretime
Retimes the H1 hblk to Internal Clock
rgnegloc
RG Negative Edge Location
tgcore_rstb
Reset Bar Signal for Internal TG Core
rgdrv
RG Drive Current
h12pol
H1/H2 Polarity Control
shpposloc
SHP Sample Location
h1posloc
H1 Positive Edge Location
shdposloc
SHD Sample Location
h1negloc
H1 Negative Edge Location
NOTES
1. All addresses and default values are expressed in hexadecimal.
2. All registers are VD/HD updated as shown in Figure 3a, except for the above-listed registers that are SL updated.
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