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參數資料
| 型號： | AD9923ABBCZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | CCD Signal Processor with V-Driver and Precision Timing⑩ Generator |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA105 |
| 封裝： | 8 X 8 MM, 0.65 MM PITCH, ROHS COMPLIANT, MO-225, CSPBGA-105 |
| 文件頁數： | 66/88頁 |
| 文件大小： | 852K |
| 代理商： | AD9923ABBCZ |
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AD9923A
SERIAL INTERFACE TIMING
All of the AD9923A internal registers are accessed through a
3-wire serial interface. Each register consists of a 12-bit address
and a 28-bit data-word. Both the address and data-word are
written by starting with the LSB. To write to each register, a 40-bit
operation is required, as shown in Figure 84. Although many
data-words are fewer than 28 bits wide, all 28 bits must be
written for each register. For example, if the data-word is only
20 bits wide, the upper 8 bits are don’t cares and must be filled
Rev. 0 | Page 66 of 88
with 0s during the serial write operation. If fewer than 28 data
bits are written, the register is not updated with new data.
Figure 85 shows a more efficient way to write to the registers,
using the AD9923A address auto-increment capability. Using
this method, the lowest desired address is written first, followed
by multiple 28-bit data-words. Each data-word is automatically
written to the address of the next highest register. By eliminating
the need to write each address, faster register loading is achieved.
Continuous write operations can start with any register location.
A4
A5
A2
A3
SDI
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
NOTES
1. SDATA BITS ARE LATCHED ON SCK RISING EDGES. SCK MAY IDLE HIGH OR LOW BETWEEN WRITE OPERATIONS.
2. ALL 40 BITS MUST BE WRITTEN: 12 BITS FOR ADDRESS AND 28 BITS FOR DATA-WORD.
3. IF THE DATA-WORD IS <28 BITS, 0s MUST BE USED TO COMPLETE THE 28-BIT DATA-WORD 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 84. Serial Write Operation
SCK
1
2
3
4
0
SDI
A0
A1
A2
A10
A11
D0
D1
D26
D27
SCK
SL
A3
NOTES
1. MULTIPLE SEQUENTIAL REGISTERS CAN BE LOADED CONTINUOUSLY.
2. THE FIRST (LOWEST ADDRESS) 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 IS LOADED.
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
Figure 85. Continuous Serial Write Operation
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| AD9923ABBCZRL | 功能描述:IC PROCESSOR CCD 12BIT 105CSPBGA 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 |
| AD9923BBCZ | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| AD9923BBCZRL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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