The LMX2240 is a monolithic, integrated intermediate frequency receiver suitable for use in Digital European Cordless Telecommunications (DECT) systems as well as other mobile telephony and wireless communications applications
The LMX2240 is a low-cost, high-performance demodulator designed for single conversion receivers in Digital European Cordless Telecommunications (DECT) systems and other mobile telephony applications. It integrates a high gain limiting amplifier with approximately 70 dB of gain, a frequency discriminator, and a received signal strength indicator (RSSI). The device operates in the 40 MHz to 150 MHz frequency range.
| Operating Frequency Range | 40 MHz to 150 MHz |
|---|---|
| Limiter Gain | approximately 70 dB |
| Supply Voltage | +83V operation |
| Package Type | 16-pin JEDEC surface mount plastic package |
| Operating Temperature Range | -10 to +70 °C |
The typical operation sensitivity is -75 dBm, while the RSSI sensitivity is to -82 dBm.
It is intended for DECT systems, portable wireless communications (PCS/PCN), WLANs, and digital cellular telephone systems.