AD9847AKST Analog Devices Inc, AD9847AKST Datasheet - Page 9

• Manufacturer Part Number: AD9847AKST
• Description: IC CCD SIGNAL PROC 10BIT 48-LQFP
• Manufacturer: Analog Devices Inc
• Type: CCD Signal Processor, 10-Bitr

Specifications of AD9847AKST

• Rohs Status: RoHS non-compliant
• Input Type: Logic
• Output Type: Logic
• Interface: 3-Wire Serial
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Analog Front End Type: CCD
• Analog Front End Category: Video
• Interface Type: Serial (3-Wire)
• Sample Rate: 40MSPS
• Input Voltage Range: 0.5V
• Operating Supply Voltage (min): 2.7/3V
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 3.6/5.5V
• Resolution: 10b
• Number Of Adc's: 1
• Power Supply Type: Analog/Digital
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Number Of Channels: 1
• Current - Supply: -
• Lead Free Status / RoHS Status: Not Compliant

REV. A
SERIAL INTERFACE TIMING
COMPLETE REGISTER LISTING
Register
oprmode
ctlmode
preventpdate
readback
vdhdpol
fieldval
hblkretime
tgcore_rstb
h12pol
h1posloc
h1negloc
NOTES
All addresses and default values are expressed in hexadecimal.
All registers are VD/HD updated as shown in Figure 3a, except for those that are SL updated.
SDATA
SCK
SL
SDATA
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 SIX BITS MUST BE WRITTEN).
4. SL IS HELD LOW UNTIL THE LAST DESIRED REGISTER HAS BEEN LOADED.
5. NEW DATA IS UPDATED EITHER AT THE SL RISING EDGE OR AT THE HD FALLING EDGE AFTER THE NEXT VD FALLING EDGE.
SCK
AFE Operation Modes
AFE Control Modes
Prevents Loading of VD-Updated Registers
Enables Serial Register Readback Mode
VD/HD Active Polarity
Internal Field Pulse Value
Retimes the H1 hblk to Internal Clock
Reset Bar Signal for Internal TG Core
H1/H2 Polarity Control
H1 Positive Edge Location
H1 Negative Edge Location
SL
VD
Description
HD
A0
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 EITHER AT 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.
A1
A0
t
A2
DS
t
A1
LS
A3
A2
A4
A3
A5
Figure 3b. Continuous Serial Write Operation
t
A4
DH
A6
A5
Figure 3a. Serial Write Operation
A7
Table I. SL Updated Registers
A6
D0
A7
DATA FOR STARTING
REGISTER ADDRESS
D1
D0
D2
D1
–9–
D3
Register
h1drv
h2drv
h3drv
h4drv
rgpol
rgposloc
rgnegloc
rgdrv
shpposloc
shdposloc
D2
D4
D3
D5
t
D4
LH
D0
D5
D1
REGISTER ADDRESS
SL UPDATED
XX
H1 Drive Current
H2 Drive Current
H3 Drive Current
H4 Drive Current
RG Polarity
RG Positive Edge Location
RG Negative Edge Location
RG Drive Current
SHP Sample Location
SHD Sample Location
Description
DATA FOR NEXT
D2
XX
D3
D4
D5
VD/HD UPDATED
D0
D1
D2
AD9847
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