RF2488 Datasheet | RF Micro Devices

Description The RF2488 is a dual-band LNA/Mixer designed to support dual-band, multi-mode handset applications. The unique dual IF outputs provide interface to two independent IF SAW filters supporting applications that bine IS136 with GSM, DCS or EDGE air interfaces. The device includes four mixers, providing the ability to use two independent IF bandwidths accessible from either the low or high band LNAs. Each LNA has a gain bypass mode controlled by the GAIN SEL pin. An image reject filter is required between each LNA and its mixer. Power management is implemented based on a three-pin logic level interface. Power consumption is minimized by shutting down all but the active sections of the device. .80 .65 1.00 0.85 4.00 sq. .60 typ .24 .45 .20 4 PLCS 2.25 sq. 1.95 12° max .05 .01 .55 .30 2 .40 .28 .50 .23 .13 4 PLCS Optimum Technology Matching® Applied Si BJT Si Bi-CMOS Package Style: LCC, 24-Pin, 4x4 üSi Ge HBT VCC BIAS Low LNA OUT Low LNA VCC 24 23 22 Ga As HBT Ga As MESFET Si CMOS Features - plete Dual-Band Front-End - Switchable LNA Gain - Low Noise and High Intercept Point - Low Current Consumption - Single 2.7V to 3.3V Power Supply - Supports Dual IF Bandwidths Low MIX IN TX/RX Low LNA GND GAIN SEL Low LNA IN High LNA IN High LNA GND High LNA VCC 1 2 3 4 5 6 7 High LNA OUT 8 GND 9 IF OUT SEL 10 High MIX IN 11 NC 12 Low LO IN 19 18 BAND SEL 17 IF1+ 16 IF115 MXR VCC 14 IF2+ 13 IF2- Ordering Information RF2488 RF2488 PCBA Multi-Mode Dual-Band LNA Mixer Fully Assembled Evaluation Board Functional Block Diagram High LO...