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參數(shù)資料
| 型號： | HD49815 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Digital Camera Signal Processor |
| 中文描述： | 數(shù)碼相機信號處理器 |
| 文件頁數(shù)： | 14/25頁 |
| 文件大?。?/td> | 91K |
| 代理商： | HD49815 |
HD49815TF
14
3. 8-bit single-chip microcomputer
The 8-bit single-chip microcomputer controls the system. It receives the image detection data that the
HD49815TF is gathering and implements automatic iris control (AE), automatic white balance control
(AWB), and automatic focus control (AF).
When setting the power on, this microcomputer implements the initial setting to the state data of the
HD49815TF.
For details on the state data, see “Hitachi Camera DSP (HD49815TF) State Data”.
Built-in Functions
1. Input line memory block
16
16
AGC
To the color-signal
processing block
10-bit
A/D input
DL
1HDL
1HDL
To the luminance-signal
processing block
De-Knee
Memory
control
+
Figure 3 Input Line Memory Block
a. De-knee function
When the CDS/AGC IC at the pre-stage or the external circuit uses the knee circuit to expand the
dynamic range of the signal, the de-knee (inverse knee) circuit returns the signal converted by the
knee circuit to the original state.
The de-knee point can be set in State Data SP_A0 [1]. The gain of the high-luminance block is 1/2.
b. AGC function
A digital AGC circuit is provided. The AGC gain can be set in State Data SP_A0 [2] from 1 to 16
times.
c. 1H delay line (1HDL) function
This circuit obtains horizontal efficient pixels of the CCD output signal. The number of efficient
pixels is set in State Data SP_A0 [9, 10] and TM_A0 [14] MCSET.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD49815TF | 制造商:Renesas Electronics Corporation 功能描述: |
| HD4A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SOT 23 SILICON PLANAR HIGH SPEED SWITCHING DIODES |
| HD4A-7D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SOT 23 SILICON PLANAR HIGH SPEED SWITCHING DIODES |
| HD4ATA | 功能描述:二極管 - 通用，功率，開關(guān) - RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Switching Diodes 峰值反向電壓:600 V 正向連續(xù)電流:200 A 最大浪涌電流:800 A 配置: 恢復(fù)時間:2000 ns 正向電壓下降:1.25 V 最大反向漏泄電流:300 uA 最大功率耗散: 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:ISOTOP 封裝:Tube |
| HD4ATC | 功能描述:二極管 - 通用，功率，開關(guān) - RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Switching Diodes 峰值反向電壓:600 V 正向連續(xù)電流:200 A 最大浪涌電流:800 A 配置: 恢復(fù)時間:2000 ns 正向電壓下降:1.25 V 最大反向漏泄電流:300 uA 最大功率耗散: 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:ISOTOP 封裝:Tube |
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