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RF2483PCBA

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

Parameter

Specification

Min.

Typ.

Max.

Variable Gain Amplifiers

High Band

Gain Control Voltage Range

0

2.0

Gain Control Range

32

35

Gain Control Slope

26

29

33

Gain Control Input Impedance*

10

Output Power

-3

0.4

3

-8

-5

-2

-24

-20

-16

-38

-35

-30

Output Noise at FLO+20MHz*

-155

-156.7

Output P1dB*

+6

Output IP3*

+20

Intermodulation IM3 tone at

FLO+70kHz and

FLO+130kHz relative to tone

at FLO+90kHz

40

50

40

50

40

50

40

47

Unit

Condition

V

dB

dB/V

kΩ

dBm

dBm

dBm

dBm

dBm/Hz

dBm/Hz

dBm

dBm

dBc

dBc

dBc

dBc

VCC=2.7V, EN=2.7V, Bandsel=2.7V,

FLO=0dBm, PLO=1900MHz, LO HB and

RF OUT HB ports are matched to 50Ω. Input

IQ signals driven differentially and in quadra-

ture from a 50Ω source impedance.

TA = 25oC

Difference between output power at

GC=2.0V and GC=0.5V

Calculated GC=1.0V and 1.5V

GC=2.0V, IQ=800mVP-P at 100kHz

GC=1.5V, IQ=800mVP-P at 100kHz

GC=1.0V, IQ=800mVP-P at 100kHz

GC=0.5V, IQ=800mVP-P at 100kHz

GC=2.0V, IQ=800mVP-P at 100kHz

GC=2.0V, IQ=0mVP-P

IQ at 100kHz

GC=2.0V. Extrapolated from IM3 with two

baseband tones at 90kHz applied differen-

tially, in quadrature, at both I and Q inputs,

each tone 400mVP-P.

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

GC = 1.0 V

GC = 0.5 V

5-34

Rev A8 060203

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