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Details about  On-Semi MC100EL33 Freq Divider DC-4GHz ECL ÷4 Prescaler

On-Semi MC100EL33 Freq Divider DC-4GHz ECL ÷4 Prescaler See original listing
On-Semi-MC100EL33-Freq-Divider-DC-4GHz-ECL-4-Prescaler
Item Ended
Item condition:
New
Ended:
13 May, 2012 10:43:24 BST
Price:
£1.95
[
History:
]
Postage:
Free Standard Delivery | See details
Item location:
Looe, Cornwall, United Kingdom

Description

eBay item number:
160720082057
Seller assumes all responsibility for this listing.
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Item specifics

Condition:
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
 

On-Semi MC100EL33 ÷4 Frequency Divider DC..4GHz 5V ECL

On offer are a number of individually priced new (old stock) MC100EL33 ECL 4GHz frequency dividers by On-Semi (formerly Motorola) in cut tape.

If you want to measure or control frequencies beyond 50..100MHz, you'll need to use more specialist circuitry than the regular 74' series counters and flip-flops. These ECL dividers are an example, a dual flip-flop capable of toggling at microwave frequencies.

  • max toggle, 4.2GHz typical, 3.8GHz guaranteed.
  • 1pS jitter
  • rise/fall times ~220pS
  • prop delay 700pS
  • diff/single-ended/AC coupled input configurations
  • temperature compensation
  • 8 pin SOIC - easily hand soldered

These would complement many other prescalers (with inputs to around 1GHz) quadrupling their range. Alternatively they may be cascaded for overall  ÷16, ÷64 etc.

In Oct 2006, Silicon Chip magazine published a prescaler project by Jim Rowe which uses a similar configuration (with non-temp-comp 10K series brother, the MC10EL33 and an ERA-2SM).

It is online at http://www.siliconchip.com.au/cms/A_107676/article.html and well worth a read. Jim describes the MC10EL33 as ...

".. first and most critical frequency divider and it's an MC10EL33 device from On-Semiconductor. This is an ECL divide-by-4 device with very impressive specifications. It can operate at input frequencies up to at least 3.8GHz and has a propagation delay of less than 800pS (picoseconds!). It even includes its own bias voltage source, (Vbb, pin 4) which is used to provide the correct bias for its two inputs (via the 2.2k resistors). It has complementary outputs, pins 7 & 6) which both need to be tied to ECL low logic level via termination resistors of close to 50 ohm. Here we use 56 Ohm resistors because this value is more readily available than 51 ohm."

Of course, there are many other applications beside frequency meters, such as synthesizers and clock generators. A chance here to pick up a few to play with ...


Part Information:

manufacturerOn-Semiconductor
nameMC100EL33DR2
markingKEL33 . XAYB
package8 pin SOIC, 0.05" pitch
datasheet http://www.onsemi.com/pub/Collateral/MC10EL33-D.PDF


Price Reference:

From Farnell UK, £8.77 each + VAT, ie. over £10 each ... Available here at a more reasonable price, with FREE P&P worldwide.


About RFPlus

RFPlus is a hobbyist with far too many components, accumulated over years of experimentation and development work, mostly in Australia.

Now located in the Southwest of England, UK ... the fishing town of Looe to be more precise ... I'm hoping to make a serious effort to dispose of the bulk of my electronic parts collection ... too many projects, too little time ... <sigh>. It'll likely take a couple of years to work my way through, so if you're interested in 'The Art', particularly the RF side, please check back as there's a fair mix of both the utilitarian and the esoteric set to appear ...

I wish each and every one of you a fine year ahead in 2011 ... may your projects be successful with a minimum of unexpected smoke ... though of course if you ever need replacement parts you know someone to ask ;-)

For other info, visit my the 'About Me' page. If you're thinking of bidding/buying I'd ask that you visit that page at least once so you can read the 'Terms & Conditions' and a bit more about RFPlus.

Click on the links below for more info ...

Business seller information

RFPlus

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In the unlikely event that the goods are faulty then of course you may return them for a refund or if possible a replacement (buyer's choice). If it's a 'change of mind' for unopened goods that's fine. Email me and we'll work it out. Please note, Distance Selling regulations require you to pay the postage to return the item(s) but that I refund your full original payment, including P&P.
Most Buy It Now purchases are protected by the Distance Selling Regulations, which allow you to cancel the purchase within seven working days after the day you receive the item. Find out more about your rights as a buyer - opens in a new window or tab and exceptions - opens in a new window or tab.

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