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Discussion Starter · #1 ·
Anyone know of current or planned STBs with the Broadcom BCM3510 chip? With 6 microseconds of pre-echo cancellation (compared to 3 microseconds in typcial 2nd generation chips), a 496-tap equalizer, and NTSC co-channel canceller, it should be a significant improvement for non-line-of-sight high-multipath situations.


(No, I don't work for Broadcom).


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Quote:
Originally posted by BarryO:
Anyone know of current or planned STBs with the Broadcom BCM3510 chip?


Barry, I do not. The NexWave NXT2002 is supposed to be a hot-shot chip also. This is the first claim of 0dB echo that I recall!!

Quote:
From NexWave Info At Click Here
The NXT2002 is a highly integrated solution to DTV reception demonstrating superior performance in the presence of multipath, phase noise, impulse noise, adjacent and co-channel interference in terrestrial and cable environments. The NXT2002 handles 0dB echoes through a wide range of delays.
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Wendell

Technical Services Supervisor

MAETV


[This message has been edited by Wendell R. Breland (edited 04-24-2001).]
 

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Discussion Starter · #4 ·
Larry,


I'm familar with the Sencore AT-986 8VSB analyzer that iBlast used in their tests. It does use the Broadcom chip, and in an ideal world, every antenna installer would have one (functions as field strength meter and spectrum analyzer, reads out equalizer taps, error rates, etc.).


But I haven't heard of any STB design wins for the Broadcom chip.


BTW, the iBlast white paper is as http://www.iblast.com/new/downloads/...WhitePaper.pdf Interesting read. It's very positive on indoor reception with latest-generation receivers, especially when a modest gain (~10 dB) amplifier is used.


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I didn't see any mention of Sencore in the press release I linked. From the following ...
Quote:
For the phase one testing, two receivers were tested with a standard PC fitted with the DTA-100 ATSC receiver card from BroadLogic Network Technologies Inc, and a DTV receiver using the new Broadcom BCM3510 8-VSB demodulator integrated circuit.
....I got the impression the Broadcom chip was on a card in a PC. Reading it again, I think I jumped to a wrong conclusion.




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Discussion Starter · #6 ·
Larry,


Go look at the white paper link I referenced above. They have a more complete explanation of what they did. The second DTV receiver mentioned in the press release is indeed the Sencore 8VSB analyzer


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You have a right to install OTA and dish antennas on property under your control.


See http://www.fcc.gov/csb/facts/otard.html
 
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