- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373971 > AD9927BBCZRL (ANALOG DEVICES INC) 14-Bit CCD Signal Processor with V-Driver and Precision TimingTM Generator PDF資料下載
參數(shù)資料
| 型號： | AD9927BBCZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | 14-Bit CCD Signal Processor with V-Driver and Precision TimingTM Generator |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, BGA128 |
| 封裝： | 9 X 9 MM, LEAD FREE, MO-225, CSP_BGA-128 |
| 文件頁數(shù)： | 78/100頁 |
| 文件大?。?/td> | 784K |
| 代理商： | AD9927BBCZRL |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁當(dāng)前第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁
AD9927
CIRCUIT LAYOUT INFORMATION
The PCB layout is critical in achieving good image quality from
the AD9927. All of the supply pins, particularly the AVDD,
TCVDD, RGVDD, and HVDD supplies, must be decoupled to
ground with good quality high frequency chip capacitors. The
decoupling capacitors should be located as close as possible to
the supply pins and should have a very low impedance path to a
continuous ground plane. If possible, there should be a 4.7 μF
or larger value bypass capacitor for each main supply—AVDD,
HVDD, and DRVDD—although this is not necessary for each
individual pin. In most applications, the supply for RGVDD
and HVDD is shared, which can be done as long as the
individual supply pins are separately bypassed with 0.1 μF
capacitors. A separate 3 V supply can also be used for DRVDD,
but this supply pin should still be decoupled to the same ground
plane as the rest of the chip. A separate ground for DRVSS is not
recommended.
Rev. 0 | Page 78 of 100
The analog bypass pins (REFT and REFB) should be carefully
decoupled to ground as close as possible to their respective pins.
The analog input (CCDIN) capacitor should be located close to
the pin.
The H1 to H8, HL, and RG traces should be designed to have
low inductance to minimize distortion of the signals. The
complementary signals, H1/H3/H5/H7 and H2/H4/H6/H8,
should be routed as close together and as symmetrically as
possible to minimize mutual inductance. Heavier PCB traces
are recommended because of the large transient current
demand on H1 to H8 by the CCD. If possible, physically
locating the AD9927 closer to the CCD reduces the inductance
on these lines. As always, the routing path should be as direct as
possible from the AD9927 to the CCD.
Note that it is recommended that all H1 to H8 outputs on the
AD9927 be used together for maximum flexibility in drive
strength settings. A typical CCD with H1 and H2 inputs only
should have the AD9927’s H1, H3, H5, and H7 outputs connected
together to drive the CCD’s H1, and H2, H4, H6, and H8 outputs
connected together to drive the CCD’s H2. Similarly, a CCD
with H1, H2, H3, and H4 inputs should have the following:
H1 and H3 connected to the CCD’s H1.
H2 and H4 connected to the CCD’s H2.
H5 and H7 connected to the CCD’s H3.
H6 and H8 connected to the CCD’s H4.
Typical 3 V System
The AD9927 typical circuit connections for a 3 V system are
shown in Figure 94. This application uses an external 3.3 V
supply, which is connected to the AD9927’s LDO input. The
LDO is configured to output 1.8 V for the AD9927’s core supply
by connecting the LDO1P8EN pin to 3.3 V and the LDO3P2EN
pin to ground. The LDOOUT and SENSE pins are shorted
together and used to supply 1.8 V to the AVDD, TCVDD, and
DVDD pins.
Typical 1.8 V System
The internal LDO can be disabled by tying the LDO pins to
ground (LDOIN, LDO1P8EN, LDO3P2EN, LDOOUT, and
SENSE). In this case, an external 1.8 V regulator is required to
supply 1.8 V to the AVDD, TCVDD, and DVDD pins.
All of the AD9927’s remaining supplies can be directly supplied
with 1.8 V. The internal charge pump (CP) can be used to
generate 3.3 V for the H and RG supplies.
The AD9927 typical circuit connections for a 1.8 V system are
shown in Figure 95.
External Crystal Application
The AD9927 contains an on-chip oscillator for driving an
external crystal. Figure 96 shows an example application using a
typical 27 MHz crystal. For the exact values of the external
resistors and capacitors, it is best to consult the crystal
manufacturer’s data sheet.
Note that a 2× crystal is not recommended for use with the
CLO oscillator circuit. The crystal frequency should not exceed
40 MHz.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9929BBCZ | CCD Signal Processor with Precision Timing Generator |
| AD9929 | CCD Signal Processor with Precision Timing Generator |
| AD9937 | CCD Signal Processor with Precision Timing⑩ Generator |
| AD9937KCP | CCD Signal Processor with Precision Timing⑩ Generator |
| AD9937KCPRL | TVPS00RF-25-35PB W/ PC CONTACT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9928 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Channel 14-Bit CCD Signal Processor with V-Driver and Precision Timing Generator |
| AD9928BBCZ | 功能描述:IC CCD SIGNAL PROCESSR 128CSPBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| AD9928BBCZ-60 | 制造商:Analog Devices 功能描述:- Trays |
| AD9928BBCZRL | 功能描述:IC CCD SIGNAL PROCESSR 128CSPBGA RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| AD9928XBCZ-60 | 功能描述:IC CCD SIGNAL PROCESSOR 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):上次購買時間 類型:CCD 信號處理器，14 位 應(yīng)用:照相機 安裝類型:表面貼裝 封裝/外殼:128-LFBGA，CSPBGA 供應(yīng)商器件封裝:128-CSPBGA（9x9） 標(biāo)準(zhǔn)包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。