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參數資料
| 型號： | AD9949KCPRL |
| 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, MO-220-VJJD-2, LFCSP-40 |
| 文件頁數： | 25/36頁 |
| 文件大小： | 707K |
| 代理商： | AD9949KCPRL |
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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
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相關代理商/技術參數 |
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|---|---|
| AD9949KCPZ | 功能描述:IC CCD SIGNAL PROCESSOR 40-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| AD9949KCPZRL | 功能描述:IC CCD SIGNAL PROCESSOR 40-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
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| AD9950TJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Parallel-Input Frequency Synthesizer |
| AD9951 | 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer |
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