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參數(shù)資料
| 型號： | HD49323AF |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | CDS/AGC & 10-bit A/D Converter |
| 中文描述： | 的CDS /自動增益控制 |
| 文件頁數(shù)： | 9/27頁 |
| 文件大?。?/td> | 104K |
| 代理商： | HD49323AF |
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HD49323AF-01
9
5. Digital output enable function
When the
OE
pin is driven high, digital output goes to the high-Z state.
OE
Pin
Digital Output
High
High-Z state
Low (or Open, GND)
Output enable
6. Pre-blanking function
When the PBLK pin is driven high, digital output is fixed at 32 LSB. However, this is valid only when
the
OE
pin and serial data output mode settings (LINV, MINV, TEST, STBY) are low.
PBLK Pin
Digital Output
High
Fixed at 32 LSB
Low (or Open, GND)
Active
7. CCD offset cancel function
This function cancels the offset voltage (V
OFCCD
) during the optical black period of the CCD imaging
element. The definition of the CCD offset voltage (V
OFCCD
) is given below.
The difference between the black level sampling voltage and signal level sampling voltage during the
OBP period is designated V
OFCCD
. This value is positive when (signal level sampling voltage) > (black
level sampling voltage).
Input signal for one pixel
(during OBP period)
Signal level
sampling
point
Black level
sampling
point
CDS input
V
OFCCD
(at +)
V
OFCCD
(at
)
Figure 2 Black Level Signal Level Difference during OBP Period
Table 3
Serial Data Settings
V
OFCCD
Cancel Function
Serial data settings
When Used
When Not Used
VOFCON bit set to 1
VOFD0—3 (4 bits) set
VOFCON bit cleared to 0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD49323AF-01 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CDS/AGC & 10-bit A/D Converter |
| HD49330AF | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 12-bit A/D Converter |
| HD49330AHF | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 12-bit A/D Converter |
| HD49334A | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 10-bit A/D Converter |
| HD49334AF | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 10-bit A/D Converter |
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