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A12A25-A2-RH,Ambarella安霸汽车视频记录摄像头行车记录仪用主控芯片SOC,DDR3,CPU,DSP,ENCODE/DECODE
2019-02-23 10:09:21

DESCRIPTION

The A12A25 is an integrated system-on-a-chip (SoC) platform for automotive video camera solutions.
A12A25,Ambarella安霸,汽车视频记录摄像头IC,行车记录仪用主控芯片, 高清视频信号处理器,视频处理CPU,视频处理DSP,数字信号处理器,Ambarella SOC,DDR3 CPU, Ambarella DSP,Ambarella ,vehycal camera ISP DSP ENCODE,DECODE
A12A25 chips provide a 792-MHz ARM Cortex-A9 CPU and an advanced digital signal processing (DSP) subsystem with a 64-Mpixel image sensor pipeline (ISP) and a high-definition (HD) H.264 codec engine.
 
KEY FEATURES
Embedded ARM Cortex-A9 792-MHz CPU 
More than 480 MPixel/s processing rate 64-MPixel maximum resolution
Fish-eye lens dewarping and barrel distortion correction
Advanced motion-compensated 3D noise reduction (MCTF)
Advanced dynamic range (WDR and HDR) engine
H.264 MP/HP Level 5.1 and MJPEG codecs
Encode performance up to 1080p30, 720p60.or 720p30+VGA (or 1080p30+USB cam)
114 General Purpose Input/Output (GPIO) pins
404-pin LFBGA package (15 mm x 15 mm) 
28-nm CMOS Low Power (LP) technology
A12A25,Ambarella安霸,汽车视频记录摄像头IC,行车记录仪用主控芯片, 高清视频信号处理器,视频处理CPU,视频处理DSP,数字信号处理器,Ambarella SOC,DDR3 CPU, Ambarella DSP,Ambarella ,vehycal camera ISP DSP ENCODE,DECODE
1. OVERVIEW
This datasheet for the A12A25 processor from Ambarella begins with a brief introduction to the chip (Section 1.1) and a summary of key features (Section 1.2). Chapter 2 describes the A12A25 peripheral interfaces. For pin details and electrical characteristics refer to Chapter 3 and Chapter 4. respectively. See Chapter 5 for package information and Chapter 6 for Ambarella contact and ordering details.
 
1.1 Introductior
The A12A25 is an integrated system-on-a-chip (SoC) platform for single- and multi-channel automotive video camera solutions. A12A25 chips provide a single-core Cortex-A9 ARM CPU and an advanced digital signal processing (DSP) subsystem with a 64-Mpixel image sensor pipeline (ISP) and a high-definition (HD) H.264 codec engine. A functional block diagram of the A12A25 SoC is provided below.
 
The Ambarella A12A25 chip enables the capture of up to 1080p30fps resolution (single-channel) or 720p30+VGA-resolution (dual-channel) video for automotive applications.
 
The A12A25 chip can be used in a variety of confiqurations depending on specific application needs
    Single-channel camera systems
    Standalone dual-channel camera systems
          Two local sensors generate two distinct inputs to the A12A25 SoC (Figure 1-2)
 
Figure 1-2. A12A25 Automotive Video Camera Application: Two-Channel Standalone with Two Local Sensors.
 
Ambarella B5-equipped camera systems
      Two possible configurations:
      1. Two remote sensor inputs are sent to the A12A25 SoC via the Ambarella B5F (serializer) and B5Nd (de-serializer) companion chips (Figure 1-3)
         -Sensor inputs are routed through the Ambarella B5F serializer chip to the B5Nd de-serializer chip via a USB cable (up to 7.5 m) or an HDMI cable (up to 10 m)
         -Note that both sensors must be the same type, and must be configured identically.
 
      2. Inputs from both a local sensor and a remote sensor are sent to the A12A25 SoC (Figure 1-4)
         -The remote sensor input is routed through the Ambarella B5F serializer chip to the B5Nd de-serializer chip via a USB cable (up to 7.5 m) or an HDMI cable (up to 10 m)
         -Note that this configuration allows the use of different sensor types (e.g., HD-capable and Full-HD-capable)
 
(The above is the text introduction on page 1-2 of the specification)
 
 
描述  
A12A25是一个用于汽车视频摄像机解决方案的集成片上系统(SoC)平台。  
 
A12A25芯片提供792 mhz ARM Cortex-A9 CPU和高级数字信号处理(DSP)子系统,具有64万像素图像传感器管道(ISP)和高清(HD) H.264编解码引擎。  
 
关键特性  
嵌入式ARM Cortex-A9 792-MHz CPU  
480mpixel /s以上处理速率64mpixel最大分辨率  
鱼眼透镜变形和筒形畸变校正  
先进的运动补偿3D降噪(MCTF)  
高级动态范围(WDR和HDR)引擎  
H.264 MP/HP 5.1级和MJPEG编解码器  
编码性能可达1080p30、720p60。 或720p30+VGA(或1080p30+USB摄像头)  
114通用输入/输出(GPIO)管脚  
404pin LFBGA封装(15mm x 15mm)  
28纳米CMOS低功耗(LP)技术  
 
1.  概述  
本数据表由Ambarella公司的A12A25处理器开始,首先简要介绍芯片(第1.1节)和概述关键特性(第1.2节)。 第2章介绍A12A25外设接口。 有关引脚的细节和电气特性,请参阅第3章和第4章。 分别。 包装信息见第5章,Ambarella联系方式和订购细节见第6章。  
 
1.1 Introductior  
A12A25是一个集成的单片系统(SoC)平台,用于单和多通道汽车视频摄像机解决方案。 A12A25芯片提供单核Cortex-A9 ARM CPU和高级数字信号处理(DSP)子系统具有64万像素图像传感器管道(ISP)和高清(HD) H.264编解码引擎。 下面提供了A12A25 SoC的功能框图。  
 
Ambarella A12A25芯片能够捕获高达1080p30fps分辨率(单通道)或720p30+VGA分辨率(双通道)的汽车应用视频。  
 
A12A25芯片可以根据特定的应用需求在各种配置中使用  
单通道相机系统  
独立的双通道摄像系统  
两个本地传感器产生两个不同的输入到A12A25 SoC(图1-2)  
 
图1 - 2, A12A25汽车摄像头应用:双通道独立与两个本地传感器。  
 
Ambarella B5配备摄像头系统  
两种可能的配置:  
1.  两个远程传感器输入通过Ambarella B5F(串行器)和B5Nd(反串行器)配套芯片发送到A12A25 SoC(图1-3)  
传感器输入通过USB线(最长7.5米)或HDMI线(最长10米)通过Ambarella B5F串行芯片到B5Nd反串行芯片  
-注意两个传感器必须是相同的类型,并且必须配置相同。  
 
2.  本地传感器和远程传感器的输入都送至A12A25 SoC(图1-4)  
-远程传感器输入通过Ambarella B5F串行芯片通过USB电缆(高达7.5米)或HDMI电缆(高达10米)路由到B5Nd反串行芯片  
-注意这个配置允许使用不同的传感器类型(例如,hd支持和full - hd支持)  
 
(以上为规范为第1-2页文字介绍)  
A12A25,Ambarella安霸,汽车视频记录摄像头IC,行车记录仪用主控芯片, 高清视频信号处理器,视频处理CPU,视频处理DSP,数字信号处理器,Ambarella SOC,DDR3 CPU, Ambarella DSP,Ambarella ,vehycal camera ISP DSP ENCODE,DECODE
A12A25,Ambarella安霸,汽车视频记录摄像头IC,行车记录仪用主控芯片, 高清视频信号处理器,视频处理CPU,视频处理DSP,数字信号处理器,Ambarella SOC,DDR3 CPU, Ambarella DSP,Ambarella ,vehycal camera ISP DSP ENCODE,DECODE
A12A25,Ambarella安霸,汽车视频记录摄像头IC,行车记录仪用主控芯片, 高清视频信号处理器,视频处理CPU,视频处理DSP,数字信号处理器,Ambarella SOC,DDR3 CPU, Ambarella DSP,Ambarella ,vehycal camera ISP DSP ENCODE,DECODE
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