PDF RF2486 Data sheet ( Hoja de datos )

Número de pieza	RF2486
Descripción	PCS LOW NOISE AMPLIFIER/MIXER
Fabricantes	RF Micro Devices
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No Preview Available ! RF2486 8 PCS LOW NOISE AMPLIFIER/MIXER Typical Applications • CDMA/TDMA/DCS1900 PCS Systems • PHS 1500/WLAN 2400 Systems • General Purpose Downconverter • Micro-Cell PCS Base Stations • Portable Battery-Powered Equipment Product Description The RF2486 is a monolithic integrated receiver front-end for PCS, PHS, and WLAN applications. The IC contains all of the required components to implement the RF func- tions of the receiver front-end except for the passive filter- ing and LO generation. It contains an LNA (low-noise amplifiers), a double-balanced Gilbert cell mixer, a bal- anced IF output, an LO isolation buffer amplifier, and an LO output buffer amplifier for providing the buffered LO signal as an output. The IC is designed to operate from a single 3.6V power supply. 0.157 0.150 1 0.344 0.337 0.2440 0.2284 8°MAX 0°MIN 0.012 0.008 0.025 0.0098 0.0040 0.0688 0.0532 Optimum Technology Matching® Applied Si BJT üSi Bi-CMOS GaAs HBT SiGe HBT GaAs MESFET Si CMOS NC 1 VCC1 2 VCC2 3 GND1 4 LNA IN 5 GND2 6 GND3 7 NC 8 GND4 9 VCC3 10 LO BUFF EN 11 LO IN 12 24 NC 23 GND9 22 VCC4 21 GND8 20 LNA OUT 19 GND7 18 MIX RF IN 17 GND6 16 IF- 15 IF+ 14 GND5 13 LO BUFF OUT Functional Block Diagram 0.050 0.0098 0.016 0.0075 Package Style: SSOP-24 Features • Complete Receiver Front-End • High Dynamic Range • Single 3.6V Power Supply • External LNA IP3 Adjustment • 1500MHz to 2500MHz Operation Ordering Information RF2486 PCS Low Noise Amplifier/Mixer RF2486 PCBA-L Fully Assembled Evaluation Board 1.96GHz RF2486 PCBA-H Fully Assembled Evaluation Board 2.4GHz RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 8 Rev A7 010717 8-105 1 page RF2486 Evaluation Board Schematic 1.96GHz, 210MHz IF (Download Bill of Materials from www.rfmd.com.) VCC VCC C10 1 nF C5 22 pF J1 LNA2 IN 50 Ω µstrip C18 22 pF See Notes 50 Ω µstrip C12 22 pF VCC C6 1 nF BUFF EN J2 LO IN R1 1 kΩ C14 1 nF 50 Ω µstrip C7 22 pF 1 2 3 4 5 6 7 8 9 10 11 12 2486400- R2* SAT C3 22 pF 24 See Notes C4 C1a 23 1.5 pF 50 Ω µstrip 22 pF 50 Ω µstrip 22 C1* 22 pF 21 L1 2.7 nH FL1* 20 19 50 Ω µs trip 18 17 16 15 14 C2* 22 pF C2a 22 pF C16 100 pF C17 100 pF 50 Ω µs trip See Notes T1 L5 220 nH TOKO C8 5 pF C11 L4 1.0 pF 47 nH 13 L3 L2 470 nH 470 nH 50 Ω µs trip VCC Gnd *C om ponents not norm ally populated. NOTES: C11 selected to fine tune L4 for IF output match at 210 MHz. R2 is norm ally not populated. For applications requiring additional LN A IP3, see the data sheet for recom m ended resistance values. C1a and C 2a are norm ally not populated. If C 1a and C2a are populated, the LNA and m ixer can be tested independently. In this case, C 1 and C 2 should be rem oved. To use the part w ith onboard filter, do not populate C 1a, and C 2a. Use C1 and C2 instead. This w ill allow cascaded operation only. C13 1 nF C9 22 pF + C15 4.7 uF BUFFER ENABLE VCC P1 1 2 3 J6 LNA OUT J5 M IXE R IN J4 IF OUT J3 LO OUT VCC 8 Rev A7 010717 8-109 5 Page

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