 | In This Issue |  |
| Quick Links | |
| Accolades | |
| Voicemail Playlist | |
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The Muppets’
“12 Days of Christmas”
is playing on our voicemail background music.
Our music usually follows an NVE theme, but this is just light holiday music, and we like the Muppets. | |
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| Year-End Holidays | |
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NVE will be closed for business Thursday and Friday, December 23 and 24, as well as Friday, December 31.
We wish our customers the best this holiday season, and a successful 2011. | |
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| Holiday Application Corner |
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Eliminating Holiday Jitters
By Sandy Templeton
Director, Isolator
Product Development and Applications
Holiday stress can make us jittery, but isolators don't have to.
Audio applications are an example of where minimizing isolator jitter is especially important. NVE’s IL700-Series Isolators have jitter as low as a remarkable as 50 ps, making them ideal for audio circuits or anywhere you want to cure the jitters.
It is extremely desirable to have serial data from a CD or MP3 source isolated from the analog portions of the sound system to eliminate ground loops (speaker hum) and high frequency pickup caused by digital currents flowing in analog current paths:
Low-Jitter Isolated CD Transport Circuit
Almost any isolator can cure your hum and high frequency current noise problems, but non-NVE jittery isolators add phase shift to the PCM data stream for cringe-worthy audio:
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Conventional
Isolator Jitter | 
IsoLoop Isolator
Jitter |
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Holiday Shopping Guide:
Choosing the Right Isolator |
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 With over 100 isolator models, this NVE Holiday Shopping Guide helps you choose the best IsoLoop isolator for your application:
| Application Requirement | Isolator Design Feature | Products |
High data rate
| High bandwidth GMR | IL7xx, IL2xx |
| Smallest packages | MSOP8 or narrow-body SOIC16 | All |
| Analog or differential inputs | Passive (coil) input | IL6xx |
Low PWD, 50 ps jitter
| High slew rate electronics | IL7xx, IL2xx |
| Low EMC footprint | Data-driven transfer function | IL7xx, IL2xx, IL5xx | Low quiescent power
| Pulsed magnetic field | IL7xx, IL2xx, IL5xx |
| Low dynamic power | Edge-sensitive switching | IL6xx |
| Excellent transient immunity | Low capacitance | All |
| Known initial output | Internal refresh or passive input | IL5xx (Internal refresh);
IL6xx (passive input) |
| Channel-to-channel isolation | Isolated inputs | IL611, IL613 |
| Wired-OR outputs | Open-drain outputs | IL6xxA (“A” types) |
| Fail-safe operation | Known zero-input state | IL6xx |
DC correct
| Inherently DC correct or refresh | IL6xx (Inherently DC correct);
IL5xx (refresh) |
Optocoupler emulation
| Passive input | IL6xx |
Isolated transceiver
| Single-chip isolated RS-422, RS-485, PROFIBUS, or CAN | IL3xxx; IL4xxx |
| Cost sensitive | Lower-speed interface | IL5xx |
<Selection Details (Application Bulletin No. 16>
<Isolator Selector Guide>
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| Perfect Stocking Stuffers |
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Stumped for what to get that hard-to-shop-for engineer on your list this holiday season?
Imagine the thrill of an NVE Sensor Evaluation Kit under the tree with everything you need to prototype a GMR sensor system. Several types are available; all are under $100 and available for delivery in plenty of time for Christmas.
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