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參數(shù)資料
| 型號： | AD9927BBCZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費(fèi)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)： | 82/100頁 |
| 文件大小： | 784K |
| 代理商： | AD9927BBCZ |
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AD9927
SERIAL INTERFACE TIMING
The internal registers of the AD9927 are accessed through a
3-wire serial interface. Each register consists of a 12-bit address
and a 28-bit data-word. Both the 12-bit address and 28-bit data-
word are written starting with the LSB. To write to each register,
a 40-bit operation is required, as shown in Figure 97. Although
many registers are fewer than 28 bits wide, all 28 bits must be
written for each register. For example, if the register is only 20 bits
wide, the upper eight bits are don’t cares and must be filled with
0s during the serial write operation. If fewer than 28 data bits are
written, the register is not updated with new data.
Rev. 0 | Page 82 of 100
Figure 98 shows a more efficient way to write to the registers,
using the AD9927’s address autoincrement capability. Using this
method, the lowest desired address is written first, followed by
multiple 28-bit data-words. Each new 28-bit data-word is
automatically written to the next highest register address. By
eliminating the need to write each 12-bit address, faster register
loading is achieved. Continuous write operations can be used
starting with any register location.
A4
A5
A2
A3
SDATA
A0
A1
A6
A8
A9
A10
A11
D0
D1
D2
D3
D25
D26
D27
SL
A7
t
LS
t
DS
12-BIT ADDRESS
28-BIT DATA
5
40
6
7
8
9
10
11
12
13
14
15
16
38
39
t
LH
t
DH
SCK
1
2
3
4
NOTES
1. SDATA BITS ARE LATCHED ON SCK RISING EDGES. SCK CAN IDLE HIGH OR LOW BETWEEN WRITE OPERATIONS.
2. ALL 40 BITS MUST BE WRITTEN: 12 BITS FOR ADDRESS AND 28 BITS FOR DATA.
3. IF THE REGISTER LENGTH IS <28 BITS, 0s MUST BE USED TO COMPLETE THE 28-BIT DATA LENGTH.
4. NEW DATA VALUES ARE UPDATED IN THE SPECIFIED REGISTER LOCATION AT DIFFERENT TIMES, DEPENDING ON THE
PARTICULAR REGISTER WRITTEN TO. SEE THE UPDATING OF NEW REGISTER VALUES SECTION FOR MORE INFORMATION.
Figure 97. Serial Write Operation
0
SDATA
A0
A1
A2
A10
A11
D0
D1
D26
D27
SCK
SL
A3
NOTES
1. MULTIPLE SEQUENTIAL REGISTERS MAY BE LOADED CONTINUOUSLY.
2. THE FIRST (LOWEST) REGISTER ADDRESS IS WRITTEN, FOLLOWED BY MULTIPLE 28-BIT DATA-WORDS.
3. THE ADDRESS AUTOMATICALLY INCREMENTS WITH EACH 28-BIT DATA-WORD (ALL 28 BITS MUST BE WRITTEN).
4. SL IS HELD LOW UNTIL THE LAST DESIRED REGISTER HAS BEEN LOADED.
Figure 98. Continuous Serial Write Operation
D0
D1
D26
D27
D0
DATA FOR STARTING
REGISTER ADDRESS
DATA FOR NEXT
REGISTER ADDRESS
D2
D1
1
40
2
3
4
11
12
13
14
39
42
41
68
67
70
69
71
0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9927BBCZRL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| 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(jī)，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(jī)，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 |
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