Datasheet
Package Availability, Models, Samples & Pricing
General Description
The LMX2346/7 are high performance frequency synthesizers with an integrated 32/33 dual modulus prescaler. The LMX2346 is designed for RF operation up to 2.0 GHz. The LMX2347 is designed for RF operation up to 2.5 GHz. Using a proprietary digital phase locked loop technique, the LMX2346/7 generates very stable, low noise control signals for UHF and VHF voltage controlled oscillators.
Serial data is transferred into the LMX2346/7 via a three-line MICROWIRE interface (DATA, LE, CLOCK). Supply voltage range is from 2.7V to 5.5V. The charge pump provides 4 mA output current.
The LMX2346/7 are manufactured using National's 0.5µ ABiC V silicon BiCMOS process and is available in 16-pin TSSOP and 16-pin CSP packages.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM * |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LMX2346SLBX | ABIC | 0 | 13658 | 0 | 0 | 2198000 | 2 | 623688501
|
|
LMX2346TM | ABIC | 0 | 13658 | 0 | 0 | 2198000 | 2 | 623688501
|
|
LMX2346TMX | ABIC | 0 | 13658 | 0 | 0 | 2198000 | 2 | 623688501
|
Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
Design Tools
| Title | Size in Kbytes |
Date |
 |
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| LMX2346 Evaluation Board Instructions |
898 Kbytes |
6-Jan-2004 |
View Online |
Download |
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| LMX-Utility Evaluation Board: Add features and functionality to the standard evaluation boards, such as amplification, loop filter, and RF functions" |
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View |
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[Information as of 20-Nov-2008]
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RoHS Compliance Information