AP0100CS圖像信號(hào)處理器詳細(xì)描述(獨(dú)家整理）

Aptina公司的AP0100CS圖像信號(hào)處理器（ISP）協(xié)同芯片用來(lái)與CMOS圖像傳感器一起設(shè)計(jì)使用，其目標(biāo)市場(chǎng)是高性能模擬閉路電視（CCTV）市場(chǎng)。隨著TV線分辨率（lines resolution）朝向高于650 TVL/PH發(fā)展，并且寬動(dòng)態(tài)范圍(WDR)性能高達(dá)120dB，高性能CCTV市場(chǎng)領(lǐng)域的發(fā)展趨勢(shì)是更高分辨率和更寬動(dòng)態(tài)范圍。Aptina的AP0100CS可與其市場(chǎng)領(lǐng)先的低光照CMOS傳感器產(chǎn)品結(jié)合，創(chuàng)建具有高分辨率和標(biāo)準(zhǔn)動(dòng)態(tài)范圍(SDR)或?qū)拕?dòng)態(tài)范圍(WDR)的CCTV相機(jī)解決方案。

AP0100CS集成了Aptina的先進(jìn)圖像處理管道（pipeline），具有令人驚嘆的視頻和低光照性能。借助用于寬動(dòng)態(tài)范圍圖像再現(xiàn)（rendering）的高級(jí)局部色調(diào)映射(Advanced Local Tone Mapping, ALTM)功能，即使在非常困難的高對(duì)比度照明條件下也能夠生成高質(zhì)量的視頻。AP0100CS集成了具有高級(jí)轉(zhuǎn)換器功能的NTSC/PAL編碼器，可以提供模擬CCTV市場(chǎng)所需的高TV線分辨率。

特性：

• Up to 1.2Mp (1280x960) Aptina sensor support
• 45 fps at 1.2Mp, 60 fps at 720p
• Optimized for operation with HDR sensors.
• Color and gamma correction
• Auto exposure, auto white balance, 50/60 Hz auto flicker detection and avoidance
• Adaptive Local Tone Mapping (ALTM)
• Programmable Spatial Transform Engine (STE).
• Pre-rendered Graphical Overlay
• Two-wire serial programming interface (CCIS)
• Interface to low-cost Flash or EEPROM through SPI bus (to configure and load patches, etc.)
• High-level host command interface
• Standalone operation supported
• Up to 5 GPIO
• Fail-safe IO
• Multi-Camera synchronization support
• Integrated video encoder for NTSC/PAL with overlay capability and 10-bit I-DAC

關(guān)鍵性能參數(shù)：

應(yīng)用 ：

• IP cam and CCTV - HD
• Enables CCTV -HD w/ MP sensor

Figure 1 shows the typical configuration of the AP0100CS in a camera system. On the host side, a two-wire serial interface is used to control the operation of the AP0100CS, and image data is transferred using the analog or parallel interface between the AP0100CS and the host. The AP0100CS interface to the sensor also uses a parallel interface.

圖1

典型并行配置

Figure 2: “Typical Parallel Configuration,” on page 7 and Figure 3: “Typical HiSPi Configuration,”

on page 8 show typical AP0100CS device connections.

All power supply rails must be decoupled from ground using capacitors as close as possible to the package.

The AP0100CS signals to the sensor and host interfaces can be at different supply voltage levels to optimize power consumption and maximize flexibility. Table 1 on page 9 provides the signal descriptions for the AP0100CS.

Figure 2: Typical Parallel Configuration

Note: 1. This typical configuration shows only one scenario out of multiple possible variations for this device.

2. Aptina recommends a 1.5kΩ resistor value for the two-wire serial interface RPULL-UP; however, greater

values may be used for slower transmission speed.

3. RESET_BAR has an internal pull-up resistor and can be left floating if not used.

4. The decoupling capacitors for the regulator input and output should have a value of 1.0uF. The capacitors

should be ceramic and need to have X5R or X7R dielectric.

5. TRST_BAR connects to GND for normal operation.

6. Aptina recommends that 0.1μF and 1μF decoupling capacitors for each power supply are mounted as

close as possible to the pin. Actual values and numbers may vary depending on layout and design consideration

典型HISPI（高速串行像素接口）配置：

Figure 3: Typical HISPI Configuration

HiSPi and Parallel Connection

When using the HiSPi interface, the user should connect the parallel interface to VDDIO_S.When using the parallel interface, the HiSPi interface and power supply (VDD_PHY) can be left floating.

推薦閱讀：

1.AP0100CS圖像信號(hào)處理器概述

摘 要：AP0100CS 集成了具有高級(jí)轉(zhuǎn)換器功能的NTSC/PAL編碼器，可以提供模擬CCTV市場(chǎng)所需的高TV線分辨率。這款產(chǎn)品為中國(guó)市場(chǎng)設(shè)計(jì)人員提供了 過(guò)去無(wú)法獲取全新相機(jī)設(shè)計(jì)方案；也就是說(shuō)，能夠利用高端IP相機(jī)傳感器的高分辨率、內(nèi)在的卓越低光照性能及WDR能力，移植應(yīng)用于模擬CCTV監(jiān)控領(lǐng)域。 這種強(qiáng)大的設(shè)計(jì)靈活性將會(huì)帶來(lái)令人激動(dòng)的新型監(jiān)控?cái)z像機(jī)。

2.AP0100CS圖像信號(hào)處理器之功能詳解（獨(dú)家整理）

摘要：詳細(xì)介紹了AP0100CS的各種功能，包括：曝光，自動(dòng)白平衡，和自動(dòng)模式。

3.AP0100CS圖像信號(hào)處理器操作之讀寫(xiě)時(shí)序（獨(dú)家整理）

摘要：AP0100CS有多種讀取方式，本文就其中：隨機(jī)位置讀取，確定位置讀取，隨機(jī)位置寫(xiě)入和確定位置寫(xiě)入這四個(gè)讀寫(xiě)方式進(jìn)行了詳細(xì)的描述，文中給出了時(shí)序圖。