RF2131 datasheet(7/10 Pages) RFMD

Part #	RF2131

Description	HIGH EFFICIENCY AMPS/ETACS AMPLIFIER

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Manufacturer	RFMD [RF Micro Devices]

Direct Link	http://www.rfmd.com

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7 / 10 page

2-105

RF2131

Rev B4 010417

2

Application Schematic 2

Optimized for Power and Efficiency over 4.0V to 4.8V

This application circuit differs from Application schematic 1 only slightly in the output tuning. The output shunt capacitor

has been moved 0.060” closer to the device, and has increased from 5.6 pF to 6.2pF. This retuning allows over

+30.8dBm of output power to be achieved down to 4.0V, however a couple of percent points of efficiency are sacrificed.

This implementation is recommended for some additional margin on output power.

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16

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BIAS

100 nF

100 pF

RF IN

10 nF

V

CC

10 nF

100 pF

10 nH

4.7 pF

10 nH

4.7 pF

2.7 nH

100 pF

RF OUT

6.2 pF

33 pF

V

CC

100 pF

100 nF

33 pF

V

CC

0.140"

VPC

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