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SDI products target broadcast video apps

Posted: 24 Apr 2006 ?? ?Print Version ?Bookmark and Share

Keywords:LMH0046? LMH0202? LMH0024? LMH0044? LMH0002T?

National Semiconductor Corp. introduced six serial digital interface (SDI) products for professional broadcast video applications. National claims that the SDI products meet the standards of the Society of Motion Picture and Television Engineers (SMPTE).

The company touts the LMH0046 to be the industry's smallest 3.3V HD/SD reclocker. It utilizes a data recovery technique to reduce jitter on incoming data streams.

The LMH0202 is a dual HD/SD multi-rate cable driver. Packaged in a small TSSOP, the LMH0202 is said to consume approximately the same board area as a single cable driver in an eight-pin SOIC package.

National also introduced two new SMPTE-compliant equalizers. The LMH0024 is an SD-adaptive cable equalizer that is said to have 25 percent lower power consumption than competitors' products. The LMH0044 is a low power multi-rate adaptive cable equalizer in a very small LLP package.

The LMH0046, an SMPTE 292M/259M-compliant reclocker, automatically detects and re-times the incoming data stream to suppress accumulated jitter. Features include 0.6 unit interval minimum jitter tolerance, lock detect, manual rate select, LVPECL serial inputs and outputs, auto/manual bypass, and an output mute function for data and clock. The 20-pin TSSOP package employs exposed die attached pad (DAP) technology for added thermal protection. Typical power consumption for the LMH0046 from a single 3.3V supply is 330mW.

National's LMH0202 dual HD/SD cable driver accepts either two independent differential inputs or a single externally routed input. From a single 3.3V supply, the LMH0202 consumes 250mW of power in SD mode and 298mW in HD mode. The LMH0202 is available in a 16-pin TSSOP package.

Packaged in a 16-pin SOIC, National's LMH0024 is an SMPTE-compliant SD adaptive cable equalizer. It consumes 198mW typical power from a single 3.3V supply.

The LMH0044 is a multi-rate SMPTE 292M/259M adaptive cable equalizer in a 16-pin LLP package. According to National, this product receives and equalizes cable lengths in excess of 140m of Belden 1694A cable at 1.5Gbps and greater than 350m at 270 Mbps. The LMH0044 consumes 208mW of typical power from a 3.3V supply.

Packaged in an 8-pin SOIC, the LMH0002T is a multi-rate cable driver offered in a -40C to 85C industrial temperature range. The LMH0002T features additive jitter of 18ps (SD) and 22ps (HD), and power consumption of 125mW (SD) and 149mW (HD).

Housed by a 64-pin TQFP package, the LMH0030 is an HD/SD serializer with 85ps typical and 125ps maximum of output jitter. This serializer offers a proprietary color bar test pattern generator, ancillary data FIFO and power consumption of 430mW typical at 3.3V. The LMH0030 requires no external VCO. It derives its reference frequency from the incoming data stream.

The LMH0202 costs $9.63, the LMH0024 costs $12.44, the LMH0044 is at $22.97, the LMH0002T is worth $7.66 and the LMH0030 costs $24.88, each in quantities of 1,000. Evaluation boards are also available.

The LMH0046 costs $23.93 each in quantities of 1,000 and samples will be available in Q3 2006.




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Related Datasheets
Part Number Description Category
? LMH0044 SMPTE 292M / 259M Adaptive Cable Equalizer EDA - Embedded Systems Design
? LMH0046 HD/SD SDI Reclocker with Dual Differential Outputs EDA - Embedded Systems Design
? LMH0030 SMPTE 292M / 259M Digital Video Serializer with Ancilliary Data FIFO and Integrated Cable Driver EDA - Embedded Systems Design
? LMH0202 LMH0202 SMPTE 292M / 259M Serial Digital Cable Driver EDA - Embedded Systems Design
? LMH0024 LMH0024 SMPTE 259M / 259M Adaptive Cable Equalizer EDA - Embedded Systems Design

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