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Maxim Unveils MAX9530 for Converting Analog to Digital

The 4-channel converter features an integrated on-chip memory controller to support a variety of output formats.

In an effort to broaden its portfolio of solutions for the digital video signal path market, Maxim Integrated Products, of Sunnyvale, Calif., introduces the MAX9530, a 4-channel analog-to-digital front-end for converting analog video and audio signals to the digital format required for compression.

An on-chip memory controller is integrated to support a variety of output formats, including the optimal format for direct connection to Maxim’s family of H.264 processors, eliminating the need for the costly field-programmable gate array (FPGA) or interface logic required by competitive solutions, the company says in a written statement.

When used together with Maxim’s MG3500 H.264 video processor, the MAX9530 reduces system byte order mark (BOM) costs by more than $1 per channel while delivering excellent system video quality for compression, the statement says. In addition, Maxium says the MAX9530 will enable a new generation of multi-camera security digital video recorders that demand superb video quality; are cost effective; and meet the time-to-market advantages of an end-to-end single-source solution.

In the video security market, large-scale deployments can involve hundreds of analog closed circuit television (CCTV) video cameras and microphones, each requiring analog-to-digital conversion for subsequent digital compression, recording, and transport over internet protocol (IP) networks. To meet aggressive price targets in this market, system designers need a cost-effective solution for interfacing multiple video and audio channels to an H.264 video processor.

Typically, designers require an FPGA to interface the video decoder with the H.264 video processor. Costing around $500 each, the FPGA can increase total installation costs by several-hundred-dollars in large-scale deployments.

The MAX9530 was designed to eliminate this interface requirement by directly connecting to Maxim’s MG3500 and other H.264 video processors. It performs all the digital conversions required for up to 4 channels of analog video and audio input. Paired with the MG3500, the MAX9530 provides a complete “analog-to-compressed-digital” video/audio signal path, the company says. This gives system designers a two-chip, end-to-end solution that greatly simplifies design and reduces cost in security DVRs.

Direct connection is made possible through the MAX9530’s integrated memory controller, which assembles 4 channels into a single optimally formatted data stream for H.264 compression. Unlike other 4-channel decoders that rely on the compression engine to reformat all 4 channels separately for compression, the MAX9530 performs this function automatically in advance to preserve critical video processor performance.