The LMX2346/LMX2347 are frequency synthesizers produced by National Semiconductor Corporation. Their working frequencies are 2.0GHz and 2.5GHz, and they support 2.7V to 5.5V voltage. They are manufactured using National's 0.5µ ABiC V silicon BiCMOS process and are available in 16-pin TSSOP and 16-pin CSP packages.
The document describes the LMX2346 and LMX2347, which are high performance frequency synthesizers featuring an integrated 32/33 dual modulus prescaler. The LMX2346 is designed for RF operation up to 2.0 GHz, while the LMX2347 supports operation up to 2.5 GHz.
| RF Operation Frequency (LMX2346) | up to 2.0 GHz |
|---|---|
| RF Operation Frequency (LMX2347) | up to 2.5 GHz |
| Supply Voltage Range | 2.7V to 5.5V |
| Charge Pump Output Current | 4 mA |
The LMX2347 is designed for RF operation up to 2.5 GHz.
Serial data is transferred via a three-line MICROWIRE interface (DATA, LE, CLOCK).