10-bit, 4x oversampling video decoder expands the application field of digital video
10-bit, 4x oversampling video decoder with the best performance in the industry
SUNNYVALE, CA, June 8, 2009. In order to expand the application range of digital video signal channel solutions, Maxim Integrated Products (NASDAQ: MXIM) introduced the industry's lowest power 10-bit, 4-fold oversampling video decoder MAX9526. The device is built on a high-performance 54MHz, 10-bit ADC, which provides excellent image quality when converting analog video signals to digital formats. The optional 8 / 10-bit video output can provide the same resolution (8-bit) image quality as Blu-ray Disc® and other high-definition formats (ITU-R BT.656 4: 2: 2).
This high-performance video decoder is designed to expand the application areas of digital video systems. The cost of the device is similar to the low-end solution, thus effectively avoiding the problem of sacrificing video quality due to cost considerations. The MAX9526 can realize a new generation of digital video system that combines high video quality and cost advantages.
The industry ’s smallest video decoder has the best performance and lowest power consumption of its kind, and is ideal for low-power, space-constrained applications such as CCTV security and surveillance, car parking camera systems, and consumer electronics .
Expand the application field of digital video
Analog-to-digital conversion (video decoding) is the first link in the video signal path of all systems that accept analog video input and include digital video processing. The video decoder therefore becomes a key factor in determining the signal quality level during subsequent processing.
But so far, for cost-sensitive systems, designers usually have to use a relatively inexpensive 9-bit, 2x oversampling decoder with poor video quality. This trade-off between performance and cost has hindered the transition from analog video systems to digital video solutions in some industries and applications.
Taking the field of video surveillance as an example, large-scale systems often include hundreds of CCTV cameras, and each camera needs to perform analog-to-digital conversion of video for subsequent digital compression, recording, or transmission through an IP network. In this case, due to cost considerations, a 4x oversampling video decoder cannot be used, and a 2x oversampling scheme will affect security performance due to poor video quality.
MAX9526 can provide excellent performance (10-bit, 4 times oversampling), and the price is similar to the low-end decoder, thus avoiding the compromise between performance and cost.
In addition to providing excellent video quality, this video decoder consumes 30% less power than comparable 4x oversampling devices and can save 50% of space. The device consumes only 200mW during normal operation and only 100µW in shutdown mode. The MAX9526 is the only device in its class where all power supplies are 1.8V. In addition, the 1.7V to 3.45V digital I / O power supply range eliminates the need for external level shifters when interfacing with digital processors.
Low power consumption solution can realize USB / PoE power supply system
MAX9526 further improves Maxim's H.264 video compression technology (originated from Mobilygen), so that the company can provide a complete solution for the entire video signal link from analog to digital.
"Maxim's H.264 video codec (codec) technology consumes only 1/10 of the power of a typical DSP solution," said Jim Fox, business director of Maxim's video product line. "The MAX9526 is compatible with extremely low-power video codecs. (For example, MG3500) Use together to realize USB and PoE power supply systems with power consumption less than 1W. "
PoE (Power over Ethernet) allows the use of existing Category 5 cables to transmit data and power, thereby reducing the cost of building security systems. Maxim's digital video products uniquely integrate low-power operation and excellent video decoding and compression performance, and realize the cost and power advantages of PoE without reducing performance.
Very easy to use
The MAX9526 can automatically adapt to a variety of video input signal states (including noisy, weak signals, or incompatible signals), thus providing great convenience for system designers. After the device is powered on, it enters the full working mode and can be automatically configured to decode the detected input system (NTSC or PAL). Design engineers only need to program 16 on-chip registers through the I²C interface to fully utilize all the functions of the device.
Summary of key features
The MAX9526 operates over the -40 ° C to + 125 ° C automotive temperature range and is available in 28-pin QSOP and 32-pin TQFN packages. The starting price of the chip is $ 2.00 (from 1,000 pieces, US FOB). Samples and evaluation boards are currently available to certified customers.
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