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RF2488 Dataheets PDF



Part Number RF2488
Manufacturers RF Micro Devices
Logo RF Micro Devices
Description MULTI-MODE DUAL-BAND LNA MIXER
Datasheet RF2488 DatasheetRF2488 Datasheet (PDF)

Preliminary RF2488 MULTI-MODE DUAL-BAND LNA MIXER 8 Typical Applications • TDMA/EDGE Handsets • TDMA IS-136 Handsets • GAIT Handsets • TDMA/GSM Dual-Band Handsets • GSM/DCS/EDGE Handsets Product 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 combine IS136 with GSM, DCS or EDGE air interfaces. The device includes four mixe.

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Preliminary RF2488 MULTI-MODE DUAL-BAND LNA MIXER 8 Typical Applications • TDMA/EDGE Handsets • TDMA IS-136 Handsets • GAIT Handsets • TDMA/GSM Dual-Band Handsets • GSM/DCS/EDGE Handsets Product 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 combine 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 üSiGe HBT VCC BIAS Low LNA OUT Low LNA VCC 24 23 22 GaAs HBT GaAs MESFET Si CMOS Features • Complete 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 21 20 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 IN RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com Rev A0 010905 8-123 FRONT-ENDS NOTES: 1 Shaded Pin is Lead 1. 2 Dimension applies to plated terminal: to be measured between 0.02 mm and 0.25 mm from terminal end. 3 Pin 1 identifier must exist on top surface of package by identification mark or feature on the package body. Exact shape and size is optional. 4 Package Warpage: 0.05 mm max. 5 Die Thickness Allowable: 0.305 mm max. 8 RF2488 Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Operating Ambient Temperature Storage Temperature Preliminary Rating -0.5 to +3.6 10 -40 to +85 -40 to +125 Unit V dBm °C °C Caution! ESD sensitive device. RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s). Parameter Operating Range Supply Voltage Supply Current RF Frequency Range LO Frequency Range IF Frequency Range Temperature Range Specification Min. Typ. Max. 2.7 800 1800 885 1885 85 -40 3 22 3.3 24 1000 2000 1400 2400 400 +85 Unit V mA MHz MHz MHz MHz MHz °C Condition @ 3V in any mode. T=25°C Low Band High Band Low Band High Band Low Noise Amplifier Low Band Gain TAMB =25°C, VCC =3V Frequency=869MHz to 894MHz 17 -11 18 -9 19 -8 ±0.75 1.35 12 dB dB dB dB dB dBm dBm dB dB dB dB 4 0.3 5 0.5 mA mA High Gain, GAIN SEL=High Low Gain, GAIN SEL=Low -40°C to +85°C High Gain, GAIN SEL=High Low Gain, GAIN SEL=Low High Gain, GAIN SEL=High Low Gain, GAIN SEL=Low LNA Input-External Match, GAIN SEL=High LNA Input-External Match, GAIN SEL=Low LNA Output-External Match, GAIN SEL=High LNA Output-External Match, GAIN SEL=Low High Gain, GAIN SEL=High Low Gain, GAIN SEL=Low TAMB =25°C, VCC =3V, IF=135MHz; Mixer RF Input Frequency=869MHz to 894MHz; LO Input Frequency=1004MHz to 1029MHz 8 FRONT-ENDS Gain Variations versus Temperature Noise Figure Input 3rd Order Intercept Return Loss 0 22 10 10 10 10 Supply Current 1.25 10 3 25 Mixer Low Band Conversion Gain LO Input Level Noise Figure (SSB) Input 3rd Order Intercept Return Loss Terminating Impedance, IF Output Mixer Supply Current 9 -9 6 10 10 10 -6 10 7 11 0 12 dB dBm dB dBm dB dB Ω mA 500 12 13 Mixer RF Input LO Input Mixer “ON” 8-124 Rev A0 010905 Preliminary Parameter Low Band Cascaded Electrical Specification Gain Gain Variations versus Temperature Noise Figure Input 3rd Order Intercept Return Loss -10 16 10 10 10 10 50 35 40 24 -4 26 -2 28 0 +1.0 2.5 24 dB dB dB dB dB dBm dBm dB dB dB dB dB dB dB dB dB Ω mA mA RF2488 Specification Min. Typ. Max. Unit Condition TAMB =25°C, VCC =3V, IF=135MHz. Assumes 3dB loss for image filter. High Gain, GAIN SEL=High Low Gain, GAIN SEL=Low 2.1 22 -8 18 Isolation IF Output Impedance Supply Current 45 >50 >40 500 16 13 18 15 Low Noise Amplifier High Band Gain Gain Variations versus Temperature Noise Figure Input 3rd Order Intercept Return Loss 0 16 10 10 10 10 Supply Current 6 0.3 7 0.5 16 -8 17 -6 18 -4 +1.0 1.7 11 dB dB dB dB dB dBm dBm .


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