MAX2411

19-1324; Rev 1; 2/98 KIT ATION EVALU LE B A IL A AV Low-Cost RF Up/Downconverter with LNA and PA Driver ____________________________Features o Low-Cost Silicon Bipolar Design o Integrated Upconvert/Downconvert Function o Operates from a Single +2.7V to +5.5V Supply o 3.2dB Combined Receiver Noise Figure: 2.4dB (LNA) 9.2dB (mixer) o Flexible Power-Amplifier Driver: 18dBm Output Third-Order Intercept (OIP3) 35dB Gain-Control Range o LO Buffer for Low LO Drive Level o Low Power Consumption: 60mW Receive 90mW Full-Power Transmit o 0.3µW Shutdown Mode o Flexible Power-Down Modes Compatible with MAX2510/MAX2511 IF Transceivers ________________General Description The MAX2411A performs the RF front-end transmit/ receive function in time-division-duplex (TDD) communication systems. It operates over a wide frequency range and is optimized for RF frequencies around 1.9GHz. Applications include most popular cordless and PCS standards. The MAX2411A includes a low-noise amplifier (LNA), a downconverter mixer, a local-oscillator buffer, an upconverter mixer, and a variable-gain power-amplifier (PA) driver in a low-cost, plastic surface-mount package. The MAX2411A’s unique bidirectional, differential IF port reduces cost and component count by allowing the transmit and receive paths to share the same IF filter. The LNA has a 2.4dB typical noise figure and a -10dBm input third-order intercept point (IP3). The downconverter mixer has a low 9.2dB noise figure and 4dBm input IP3. Image and lo...