參數(shù)資料
型號(hào): AD9949KCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 18/36頁(yè)
文件大?。?/td> 0K
描述: IC CCD SIGNAL PROCESSOR 40-LFCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: CCD 信號(hào)處理器,12 位
輸入類(lèi)型: 邏輯
輸出類(lèi)型: 邏輯
接口: 3 線串口
安裝類(lèi)型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 40-LFCSP
包裝: 托盤(pán)
AD9949
Rev. B | Page 25 of 36
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.
5.
Write a 1 to the PREVENTUPDATE register (Address
0×14). This prevents the updating of the serial register
data.
6.
Write to the desired registers to configure high speed
timing and horizontal timing.
7.
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.
8.
Write a 0 to the PREVENTUPDATE register (Address
0×14). This allows the serial information to be updated at
next VD/HD falling edge.
9.
The next VD/HD falling edge allows register updates to
occur, including OUT_CONTROL, which enables all clock
outputs.
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
tPWR
CLI
(INPUT)
HD
(OUTPUT)
1V
...
03751-028
1
2
3
4
5
6
7
8
9
Figure 27. Recommended Power-Up Sequence
相關(guān)PDF資料
PDF描述
AD9951YSVZ IC DDS DAC 14BIT 1.8V 48-TQFP
AD9952YSVZ-REEL7 IC DDS DAC 14BIT 1.8V 48TQFP
AD9953YSVZ-REEL7 IC DDS DAC 14BIT 1.8V 48TQFP
AD9954YSVZ-REEL7 IC DDS DAC 14BIT 1.8V 48TQFP
AD9956YCPZ-REEL7 IC SYNTHESIZER 1.8V 48LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9949KCPZRL 功能描述:IC CCD SIGNAL PROCESSOR 40-LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 傳感器和探測(cè)器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類(lèi)型:觸控式傳感器 輸入類(lèi)型:數(shù)字 輸出類(lèi)型:數(shù)字 接口:JTAG,串行 電流 - 電源:100µA 安裝類(lèi)型:表面貼裝 封裝/外殼:20-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件
AD9950KJ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Parallel-Input Frequency Synthesizer
AD9950TJ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Parallel-Input Frequency Synthesizer
AD9951 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9951/PCBZ 制造商:Analog Devices 功能描述:AD9951 400 MSPS DDS W/ 14 BIT DAC EVALBD - Boxed Product (Development Kits)