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.
The LMX243x family are high‑performance dual‑modulus PLL synthesizers designed for RF and IF local oscillators in dual‑conversion radio transceivers. They support selectable prescale ratios, low‑current operation, and a three‑wire Microwire interface.
Key features include programmable charge‑pump currents, Fastlock™ technology with timeout counters, analog and digital lock‑detect outputs, and availability in 20‑pin TSSOP and UTCSP surface‑mount packages. Ordering information, absolute maximum ratings, and detailed electrical characteristics are provided for each device variant.
| Supply voltage range | 2.25 V to 2.75 V |
|---|---|
| Package options | 20‑Pin TSSOP and 20‑Pin UTCSP |
| LMX2430 RF current consumption | 2.8 mA |
| LMX2434 RF current consumption | 4.6 mA |
The devices operate with a supply voltage between 2.25 V and 2.75 V.
Each device is packaged in a 20‑pin layout.
At 2.5 V the LMX2434 draws 4.6 mA in RF mode and 2.4 mA in IF mode.