AD9992_07 AD [Analog Devices], AD9992_07 Datasheet - Page 44
AD9992_07
Manufacturer Part Number
AD9992_07
Description
12-Bit CCD Signal Processor with Precision Timing Generator
Manufacturer
AD [Analog Devices]
Datasheet
1.AD9992_07.pdf
(92 pages)
- Current page: 44 of 92
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AD9992
MODE FIELD NUMBER
MODE FIELD NUMBER
EXAMPLE 1:
TOTAL FIELDS = 3, FIRST FIELD = FIELD0, SECOND FIELD = FIELD1, THIRD FIELD = FIELD2
MODE SETTINGS:
0x2A = 0x3
0x2B = 0x820
0x2C = 0x0
EXAMPLE 3:
TOTAL FIELDS = 4, FIRST FIELD = FIELD5, SECOND FIELD = FIELD1, THIRD FIELD = FIELD4, FOURTH FIELD = FIELD2
MODE SETTINGS:
0x2A = 0x4
0x2B = 0x11025
0x2C = 0x0
EXAMPLE 2:
TOTAL FIELDS = 1, FIRST FIELD = FIELD3
MODE SETTINGS:
0x2A = 0x1
0x2B = 0x3
0x2C = 0x0
FIELD0
FIELD3
FIELD5
REGISTER WRITE
REGISTER WRITE
Figure 53. Update of MODE Register if Changed to VD-Updated Register
VD
VD
FIELD1
FIELD1
Figure 52. Update of MODE Register, SCK Updated (Default Setting)
EXAMPLE MODE REGISTER CHANGE:
REGISTER WRITE A––WRITE TO MODE REGISTERS 0x2A, 0x2B, 0x2C TO SPECIFY
CHANGE FROM DRAFT MODE (FIELD4) TO STILL MODE (FIELD0/1/2/3).
ALSO WRITE TO VGA GAIN OR ANY NEW REGISTER VALUES NEEDED
FOR STILL FRAME OPERATION, SUCH AS NEW FIELD INFORMATION.
EXAMPLE MODE REGISTER CHANGE:
REGISTER WRITE A –– WRITE TO MODE REGISTERS 0x2A, 0x2B, 0x2C TO SPECIFY
CHANGE FROM DRAFT MODE (FIELD4) TO STILL MODE (FIELD0/1/2/3).
REGISTER WRITE B –– WRITE TO VGA GAIN OR ANY NEW REGISTER VALUES NEEDED
FOR STILL FRAME OPERATION, SUCH AS NEW FIELD INFORMATION.
NOTES
1. NEW MODE INFORMATION IS UPDATED AT SECOND VD FALLING EDGE AFTER
SERIAL WRITE A.
Figure 54. Using the MODE Registers to Select Field Timing
4 (DRAFT)
4 (DRAFT)
MODE WRITE
A
FIELD2
FIELD4
MODE WRITE
4 (DRAFT)
4 (DRAFT)
Rev. C | Page 44 of 92
A
B
FIELD2
MODE UPDATE
MODE UPDATE
0 (STILL 1ST FIELD)
0 (STILL 1ST FIELD)
1 (STILL 2ND FIELD)
1 (STILL 2ND FIELD)
2
2
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