參數(shù)資料
型號: AD9937
廠商: Analog Devices, Inc.
英文描述: CCD Signal Processor with Precision Timing⑩ Generator
中文描述: CCD信號處理器精確定時⑩發(fā)生器
文件頁數(shù): 36/44頁
文件大小: 410K
代理商: AD9937
REV. 0
–36–
AD9937
12-BIT
HD COUNTER
V1A/B
V2
V3A/B
V4
1
2
3
4
5
6
7
8
9
10
11
12
VTPLEN_x
*
PROGRAMMABLE CLOCK POSITIONS
1. V1POL_x (PROGRAMMABLE AT VTP_REG(x))
2. V2POL_x (PROGRAMMABLE AT VTP_REG(x))
3. V3POL_x (PROGRAMMABLE AT VTP_REG(x))
4. V4POL_x (PROGRAMMABLE AT VTP_REG(x))
5. V1TOG1_x (PROGRAMMABLE AT VTP_REG(x))
6. V1TOG2_x (PROGRAMMABLE AT VTP_REG(x))
7. V2TOG1_x (PROGRAMMABLE AT VTP_REG(x))
8. V2TOG2_x (PROGRAMMABLE AT VTP_REG(x))
9. V3TOG1_x (PROGRAMMABLE AT VTP_REG(x))
10. V3TOG2_x (PROGRAMMABLE AT VTP_REG(x))
11. V4TOG1_x (PROGRAMMABLE AT VTP_REG(x))
12. V4TOG2_x (PROGRAMMABLE AT VTP_REG(x))
PROGRAMMING NOTES
*
(x = 0, 1, 2) THE x REPRESENTS THE THREE SEPARATE REGISTERS FOR VTP0, VTP1, AND VTP2 SETS. THIS ALSO APPLIES TO THE x
USED IN THE PROGRAMMABLE CLOCK POSITIONS BELOW.
Figure 32. Example of Programming One VTP Pulse
12-BIT
HD COUNTER
V1A/B
V2
V3A/B
V4
VTPLEN_x
VTPREPn
*
= 2
*
(n = 0, 1, 2, 3, 4) n REPRESENTS THE NUMBER OF PROGRAMMABLE CCD REGIONS. THE NUMBER OF REPETITIONS IN EACH
CCD REGION CAN BE INDEPENDENTLY SET USING THE VTPREP REGISTER FOR THAT REGION.
5
40
75
110
145
180
215
250
285
320
355
390
425
460
495
530
Figure 33. Example of Creating a Sequence of VTP Pulses by Using the VTPREP Register
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