Maxim ’s 4-channel video decoder chip can be directly connected to its H.264 series processors
Located in Sunnyvale, California, USA-November 1, 2010, which broadens the digital video signal path solution series, Maxim Integrated Products (NASDAQ: MXIM) launched MAX9530: analog video conversion and a 4 The channel analog to digital front end is compressed with the audio signal required in digital format. The on-chip integrated memory controller supports multiple output formats, including the H.264 format optimized for direct connection to Maxim's series processors. This eliminates the need for competition in expensive FPGA or interface logic solutions.
When used together with Maxim's MG3500 H.264 video processor, the MAX9530 reduces the system BOM cost per channel while providing superior system compressed video quality of more than $ 1. The MAX9530 will therefore be able to meet the demand for mulTIcamera security video recorders with excellent video quality, competitive costs, and end the time for a single-source solution for the terminal to bring the product to a new generation of market advantage.
The meeting's fierce price target for security recorders
In the video security market, large-scale deployment may involve analog CCTV cameras and microphones. Everyone needs hundreds of people after the analog to digital compression, recording, transmission, and conversion of IP networks. To meet the fierce price targets of this market, system designers need a cost-effective solution for connecting H.264 video processors with multiple video and audio channels.
Usually, designers need an FPGA with an H.264 video decoder that interfaces with the video processor. With a cost of about $ 5 per person, FPGAs can add hundreds of dollars to large-scale deployments, and the total installation cost.
Maxim's end-to-end digital video compression solution
The purpose of the MAX9530 is to eliminate the requirement of directly connecting to the MG3500 H.264 video processor and other interfaces of Maxim. It performs all the digital conversion required for up to 4 analog video and audio input channels.
When paired with the MG3500, the MAX9530 provides a complete "analog to compressed digital" video / audio signal path. This provides system designers with a dual-chip, end-to-end solution that greatly simplifies the design and reduces the cost of security recorders.
Direct connection becomes possible through the integrated memory controller of the MAX9530, which is optimized to combine 4 channels of H.264 compressed stream into a single data format. Unlike other 4-channel decoders that rely on a compression engine to recompress all 4 channels. In addition, the MAX9530 automatically performs this function to save the performance of key video processors in advance.
Unmatched video quality
Analog to digital conversion (video decoding and audio conversion) is the first step in accepting analog video / audio input in any system in the signal path and using digital processing. Video decoders and audio ADCs are therefore key in determining the level of video and audio quality available for compression and downstream processing.
The MAX9530 provides unmatched video quality, thanks to its 54MHz 10-bit ADC, differential input, video equalizer, and industry-leading cross-channel crosstalk ("60dB). Differential analog input improves noise on high-density digital boards Immunity, simplify the layout and design of the system. In addition, its unique 4-channel digital EQ function restores the loss of each high-frequency video input signal, maintaining the integrity of the application with long cables. This article comes from the electronic enthusiast website (http: //)
Main characteristics of statistical investigation
4-channel NTSC / PAL video decoder, 54MHz, 10-bit ADC and 5-line filter
Flexible video output in byte or frame interleaving mode 27/54 / 108MHz
Four-channel audio ADC with 48kHz / 16-bit capture and sample rate conversion
2 channel analog audio output
Digital audio input / output via I ² S interface
Multi-chip direct connection cascade configuration
Independent car equalizer handles each video channel
Single video doubler for each video channel
Ordering Information
The full MAX9530 operates in the commercial temperature range of 0 ° C to 70 ° C. It uses a 12mm × 12mm 196-pin CSBGA, making it the smallest device of its kind. The starting price is $ 7.95 (from 1,000 pieces, US FOB). Samples and evaluation kits are now qualified customers. For more information, please visit: Video-SoC.
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