Gehäuseinformationen
| Gehäuse | Pins WQFN (NJH) | 36 |
| Betriebstemperaturbereich (°C) -40 to 85 |
| Gehäusemenge | Träger 1.000 | SMALL T&R |
Merkmale von LMX2531
- Multiple Frequency Options Available
- See Device Information Table
- Frequencies From: 553 MHz to 3132 MHz
- PLL Features
- Fractional-N Delta-Sigma Modulator Order
Programmable up to Fourth Order - FastLock/Cycle Slip Reduction with Timeout
Counter - Partially Integrated, Adjustable Loop Filter
- Very Low Phase Noise and Spurs
- Fractional-N Delta-Sigma Modulator Order
- VCO Features
- Integrated Tank Inductor
- Low Phase Noise
- Other Features
- 2.8-V to 3.2-V Operation
- Low Operating Current
- Low Power-Down Current
- 1.8-V MICROWIRE Support
- 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package
Beschreibung von LMX2531
The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.