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參數(shù)資料
| 型號： | AD9949KCPZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | 12-Bit CCD Signal Processor with Precision Timing Core |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC40 |
| 封裝： | 6 X 6 MM, LEAD FREE, MO-220-VJJD-2, LFCSP-40 |
| 文件頁數(shù)： | 25/36頁 |
| 文件大?。?/td> | 707K |
| 代理商： | AD9949KCPZRL |
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AD9949
POWER-UP PROCEDURE
RECOMMENDED POWER-UP SEQUENCE
When the AD9949 is powered up, the following sequence is
recommended (refer to Figure 27 for each step):
1.
Turn on the power supplies for the AD9949.
2.
Apply the master clock input, CLI, VD, and HD.
3.
Although the AD9949 contains an on-chip, power-on reset,
a software reset of the internal registers is recommended.
Write a 1 to the SW_RST register (Address 0×10), which
resets the internal registers to their default values. This bit
is self-clearing and automatically resets back to 0.
4.
The
Precision Timing
core must be reset by writing a 0 to
the TGCORE_RSTB register (Address 0×12) followed by
writing a l to the TGCORE_RSTB register. This starts the
internal timing core operation.
Rev. B | Page 25 of 36
5.
Write a 1 to the PREVENTUPDATE register (Address
0×14). This prevents the updating of the serial register
data.
Write to the desired registers to configure high speed
timing and horizontal timing.
Write a 1 to the OUT_CONTROL register (Address 0×11).
This allows the outputs to become active after the next
VD/HD rising edge.
Write a 0 to the PREVENTUPDATE register (Address
0×14). This allows the serial information to be updated at
next VD/HD falling edge.
The next VD/HD falling edge allows register updates to
occur, including OUT_CONTROL, which enables all clock
outputs.
6.
7.
8.
9.
VDD
(INPUT)
SERIAL
WRITES
VD
(OUTPUT)
1H
ODD FIELD
EVEN FIELD
...
...
DIGITAL
OUTPUTS
CLOCKS ACTIVE WHEN OUT_CONTROL REGISTER IS
UPDATED AT VD/HD EDGE
H1/H3, RG
H2/H4
t
PWR
CLI
(INPUT)
HD
(OUTPUT)
1V
...
...
0
1
2
2
3
4
5
6
7
8
9
Figure 27. Recommended Power-Up Sequence
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9949KCPRL | 12-Bit CCD Signal Processor with Precision Timing Core |
| AD9949KCPZ | 12-Bit CCD Signal Processor with Precision Timing Core |
| AD9949AKCPZ | Circular Connector; No. of Contacts:61; Series:MS27474; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:24-61 RoHS Compliant: No |
| AD9949AKCPZRL | Circular Connector; No. of Contacts:61; Series:MS27474; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:24-61 RoHS Compliant: No |
| AD9951YSV-REEL7 | Hook-Up Wire; Conductor Size AWG:18; No. Strands x Strand Size:16 x 30; Jacket Color:Blue; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061, CSA Type AWM; Conductor Material:Copper RoHS Compliant: Yes |
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