AR7241A – 2.4GHz ISM Band MMIC LNA

Part Number : AR7241A

Function : 2.4GHz ISM Band MMIC LNA

Manufactures : ARAFTEK

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AR7241A image

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Description :

ARAFTEK , INC. AR7241A PRELIMINARY 2.4GHz ISM Band MMIC LNA Features • 2.3 dB Noise Figure • 24 dB Gain • Single-Supply Bias • 8L-SOP Plastic package with ground slug for low-inductance RF grounding • Analog Gain Control with positive voltage • Input /Output 50 Ω matched Applications • ISM-Band spread-spectrum wireless communications • Wireless Local Area Networks • Wireless Data Terminals • Wireless Remote Monitoring The AR7241A is a fully matched three-stage, single-supply monolithic LNA designed for wireless applications in the 2.4 – 2.5 GHz ISM band. Bias, DC blocking and matching circuitry is included on-chip allowing for easy implementation. Optional analog gain control pin is provided for AGC function. The small-sized 8-pin SOP package is ideal for PCMCIA card applications. AR7241A reduces development time and cost of developing 2.4 GHz RF subsystems. AR7241A Block Diagram GND 8 RXAGC 7 GND 6 LNAO 5 LNA 1 VDD 2 VDD 3 LNAI 4 LNAI 40990 Encyclopedia Circle, Fremont, CA. 94538, U.S.A. Tel: (510) 580-2500 Ext 203 Fax: (510) 580-2508 Specifications are subject to change without notice. Copyright Araftek,Inc. All rights reserved. Rev 0 9/99 1 ARAFTEK, INC. AR7241A PRELIMINARY 2.4GHz ISM Band MMIC LNA Electrical Specifications: RF = 2.4 – 2.5 GHz, TA= 25o C, VDD = +5 V RXAGC = 0V ) Parameter Conditions Gain Gain Flatness Noise Figure Input 3rd Order Intercept freq1= 2.45GHz, freq2= 2.452Ghz Pin = -33 dBm/tone Output Power Po-1dB @ 2.45GHz Input Return Loss Output Return Loss Isolation Supply Voltage Bias Current Min Typ Max 24 +/- 0.4 2.3 -10 Units dB dB dB dBm +3.5 10 18 10 18 38 4.5 5.0 28 5.5 dBm dB dB dB V mA Gain (dB) Gain Versus RXAGC Voltage ( TA = 25 0 C, VDD = 5 V, f = 2.45GHz ) 30 25 20 15 10 5 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 RXAGC Voltage (V) 40990 Encyclopedia Circle, Fremont, CA. 94538, U.S.A. 2 Tel: (510) 580-2500 Ext 203 Fax: (510) 580-2508 Specifications are subject to change without notice. Copyright Araftek,Inc. All rights reserved. Rev 0 9/99 ARAFTEK, INC. AR7241A PRELIMINARY 2.4GHz ISM Band MMIC LNA AR7241A Application Circuit RXAGC ( 0 to +1.2 V) LNAO 50 ohm matched 5.6p 8 GND 0.01u W=10mil L=200mil 76 RXAGC GND 5 LNAO LNA VDD +5V VDD 1 VDD 2 100p 1u LNAI 3 LNAI 4 LNAI 50 ohm matched NOTES: 1) PCB: FR-4, 28mil Thickness 2) Backside Package Slug Must be Connected to PCB RF Ground with several vias 3) All GND pins must be connected to PCB RF Ground with vias 4) Reference plane for Critical Transmission Lines is package lead end 40990 Encyclopedia Circle, Fremont, CA. 94538, U.S.A. 3 Tel: (510) 580-2500 Ext 203 Fax: (510) 580-2508 Specifications are subject to change without notice. Copyright Araftek,Inc. All rights reserved. Rev 0 9/99 ARAFTEK, INC. AR7241A PRELIMINARY 2.4GHz ISM Band MMIC LNA 40990 Encyclopedia Circle, Fremont, CA. 94538, U.S.A. 4 Tel: (510) 580-2500 Ext 203 Fax: (510) 580-2508 Specifications are subject to change w […]

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AR7241A Datasheet


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