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The LMX243x devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX243x devices are designed for use as RF and IF local oscillators for dual conversion radio transceivers. A 32/33 or a 16/17 prescale ratio can be selected for the 5.0 GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for .
low current consumption: LMX2430 (3.0 GHz/ 0.8 GHz) — 2.8 mA/ 1.4 mA, LMX2433 (3.6 GHz/ 1.7 GHz) — 3.2 mA/ 2.0 mA, LMX2434 (5.0 GHz/ 2.5 GHz) — 4.6 mA/ 2.4 mA at 2.50V. The LMX243x devices are available in 20-Pin TSSOP and 20-Pin UTCSP surface mount plastic packages. Features n Low Current Consumption n 2.25V to 2.75V Operation n Selectable Synchronous or Asynchronous Powerdown Mode n Selectable Dual Modulus Prescaler: LMX2430 RF: 8/9 or 16/17 LMX2433 RF: 8/9 or 16/17 LMX2434 RF: 16/17 or 32/33 LMX243x IF: 8/9 or 16/17 n Programmable Charge Pump Current Levels RF and IF: 1 or 4 mA n Fastlock™.
LMX2430 - Texas Instruments
Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control si.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LMX2433 |
National Semiconductor |
Dual High Frequency Synthesizer |
|
| 2 | LMX2433 |
Texas Instruments |
Dual High-Frequency Synthesizer |
|
| 3 | LMX2434 |
National Semiconductor |
Dual High Frequency Synthesizer |
|
| 4 | LMX2434 |
Texas Instruments |
Dual High-Frequency Synthesizer |
|
| 5 | LMX2411 |
National Semiconductor |
Baseband Processor |
|
| 6 | LMX2470 |
National Semiconductor |
2.6 GHz Delta-Sigma Fractional-N PLL |
|
| 7 | LMX2470 |
Texas Instruments |
2.6 GHz Delta-Sigma Fractional-N PLL |
|
| 8 | LMX2471 |
National Semiconductor |
3.6 GHz Delta-Sigma Fractional-N PLL |
|
| 9 | LMX2485 |
National Semiconductor |
High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers |
|
| 10 | LMX2485 |
Texas Instruments |
3-GHz Delta-Sigma Low-Power Dual PLLatinum Frequency Synthesizer |
|
| 11 | LMX2485E |
National Semiconductor |
High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers |
|
| 12 | LMX2485E |
Texas Instruments |
3-GHz Delta-Sigma Low-Power Dual PLLatinum Frequency Synthesizer |
|