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RFFM8505TR7 Datasheet(PDF) 9 Page - RF Micro Devices |
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RFFM8505TR7 Datasheet(HTML) 9 Page - RF Micro Devices |
9 / 9 page RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 DS131106 For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com. The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 9 of 9 RFFM8505 Pin Names and Descriptions Pin Name Description 1 GND Ground connection. This pin is not connected internally and can be left floating or connected to ground. 2 RX RF output port for the 802.11a/n/ac LNA. This port is matched to 50Ω and DC blocked internally. 3 GND This pin is not connected internally and can be left floating or connected to ground. 4 VCC Supply voltage for the LNA and PA Regulator. See applications schematic for biasing and bypassing components. 5 PDET Power detector voltage for the TX path. May need external series R/shunt C to adjust voltage level and to filter RF noise. 6 PA_EN Control voltage for the PA and TX switch. See truth table for proper settings. 7 GND This pin is not connected internally and can be left floating or connected to ground. 8 TX RF input port for the 802.11a/n/ac PA. Input is matched to 50Ω and DC blocked internally 9 VMODE High/Low power mode control signal. VMODE can be low or floating for nominal conditions (high power mode). Applying 2.8V or greater to this pin enables low power mode. 10 VCC Supply voltage for the first and second stage of the PA. See applications schematic for biasing and bypassing components. 11 VCC Supply voltage for the final stage of the PA. See applications schematic for biasing and bypassing components. 12 GND This pin is not connected internally and can be left floating or connected to ground. 13 ANT RF bidirectional antenna port matched to 50Ω. An External DC block is required 14 GND This pin is not connected internally and can be left floating or connected to ground. 15 C_RX Receive switch control pin. See switch truth table for proper level. 16 LNA_EN Control voltage for the LNA. When this pin is set to a LOW logic state, the bypass mode is enabled. Pkg Base GND Ground connection. The backside of the package should be connected to the ground plane through a short path, i.e., PCB vias under the device are recommended. |
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