Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
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| LMX2315/LMX2320/LMX2325 PLLatinum Frequency Synthesizer for RF Personal Communications LMX2325 2.5 GHz LMX2320 2.0 GHz LMX2315 1.2 GHz |
591 Kbytes |
8-Jul-02 |
Download |
| LMX2315 Mil-Aero Datasheet MNLMX2315-X |
132 Kbytes |
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Download |
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LMX2315TM
| NONE
| NONE
| 03 Jun 2003
|
LMX2315TMX
| NONE
| NONE
| 03 Jun 2003
|
LMX2315WG-MLS
| LMX2316TM
| NATIONAL SEMICONDUCTOR
| 06 Sep 2005
|
LMX2315WG-QML
| NONE
| NONE
| 01 Sep 2004
|
General Description
The LMX2315/2320/2325's are high performance frequency synthesizers with integrated prescalers designed for RF operation up to 2.5 GHz. They are fabricated using National's ABiC IV BiCMOS process.
A 64/65 or a 128/129 divide ratio can be selected for the LMX2315 and LMX2320 RF synthesizer at input frequencies of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide ratios are available in the 2.5 GHz LMX2325. Using a proprietary digital phase locked loop technique, the LMX2315/2320/2325's linear phase detector characteristics can generate very stable, low noise signals for controlling a local oscillator.
Serial data is transferred into the LMX2320 and the LMX2325 via a three line MICROWIRE interface (Data, Enable, Clock). Supply voltage can range from 2.7V to 5.5V. The LMX2315, LMX2320 and the LMX2325 feature very low current consumption, typically 6 mA, 10 mA and 11 mA respectively.
The LMX2315, LMX2320 and the LMX2325 are available in a TSSOP 20-pin surface mount plastic package.
Design Tools
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| PLL Codeloader Driver Software |
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Application Notes
| Title | Size in Kbytes |
Date |
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| AN-1001: Application Note 1001 An Analysis and Performance Evaluation of a Passive Filter Design Technique for Charge Pump PLL's |
175 Kbytes |
30-Jul-01 |
Download |
More Application Notes
| Title | Size in Kbytes |
Date |
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| AN-1879: Application Note 1879 Fractional N Frequency Synthesis |
511 Kbytes |
10-Dec-08 |
Download |
[Information as of 8-Nov-2009]
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