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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

Low Band

Gain Control Voltage Range

0

2.0

Gain Control Range

32

36

Gain Control Slope

26

29.5

33

Gain Control Input Impedance*

10

Output Power

-3

0.8

3

-7.5

-4.5

-1.5

-24

-21

-16

-41

-35

-33

Output Noise at FLO+20MHz*

-156.4

-157.2

Output P1dB*

+6

Output IP3*

+19

Intermodulation IM3 tone at

FLO+70kHz and

FLO+130kHz relative to tone

at FLO+90kHz

40

50

40

50

40

50

40

50

Unit

Condition

V

dB

dB/V

kΩ

dB

dB

dB

dB

dBm/Hz

dBm/Hz

dBm

dBm

dBc

dBc

dBc

dBc

VCC=2.7V, EN=2.7V, Bandsel=0V,

FLO=0dBm, PLO=900MHz, LO LB and RF

OUT LB ports are matched to 50Ω. Input IQ

1.2Vdc, signals driven differentially and in

quadrature from a 50Ω source impedance.

TA = 25oC

Difference between output power at

GC=2.0V and 0.5V

Calculated using output power at 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 and 110kHz

applied differentially, in quadrature, at both I

and Q inputs, each tone 400mVP-P.

Two baseband tones at 90kHz and 110kHz

applied at both I and Q inputs, each tone

400 mVP-P.

GC = 2.0 V

GC = 1.5 V

GC = 1.0 V

GC = 0.5 V

Rev A8 060203

5-35

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