RF2705G Ver la hoja de datos (PDF) - RF Micro Devices

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RF2705G

LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER

RF Micro Devices 

RF2705G

Parameter

Intermodulation

Output IP3*

Specification

Unit

Min.

Typ.

Max.

+20

dBm

Intermodulation IM3 tone at

-37

dBc

FC+70kHz and FC+130kHz

relative to tones at

FC+90kHz and FC+110kHz

-40

dBc

High Band Bypass Mode (DCS1800/PCS1900)

Mode=High Band Bypass (see Control Logic Truth Table for Mode

Control Settings)

PA Driver

GMSK Input Power*

-3

0

+3

dBm

GMSK Output Power 4.0

6.8

9.0

dBm

Output Impedance*

50

Ω

Output Noise

At FC±20MHz*

* Not tested in Production

-161

-159

dBc/Hz

** Provides the same output power as modulated signal with associated crest factor.

Condition

GC=2.0V. Extrapolated from IM3 with two

baseband tones at 90kHz and 110kHz applied

differentially, in quadrature, at both I and Q

inputs, each tone 400mVP-P.

GC = 2.0 V

GC = 1.5 V

VCC = 2.7 V

At LO LB input from a 50Ω source.

At RF LB output

AM+PM noise, LO=0dBm

10 of 26

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Rev A0 DS060206

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