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RF2483PCBA

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

Parameter

Specification

Min.

Typ.

Max.

I/Q Modulator High Band

(2400 MHz)

Baseband Input Voltage*

1.15

1.2

1.25

Baseband Input Level

0.8

Baseband Input Impedance*

5.5

Input Bandwidth*

50

150

Sideband Suppression

30

34

30

37

38

43

Carrier Suppression

40

47

30

38

30

38

22

32

16

22

3rd Harmonic of Modulation

Suppression at FLO-3x100kHz

50

58

50

58

50

59

50

62

Baseband Inputs DC Current

100

Drain*

Baseband Inputs AC Current

100

Drain*

Variable Gain Amplifiers

High Band (2400MHz)

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

-10

-7

-3

-22

-18

-14

-39

-35

-30

Output Noise at FLO+20MHz*

-155

-156.7

Output P1dB*

+6

Output IP3*

+20

Unit

Condition

V

VPP

kΩ

MHz

dBc

dBc

dBc

dBc

dBc

dBc

dBc

dBc

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

FLO=0dBm, PLO=2400MHz, LO HB and

RF OUT HB ports are matched to 50Ω.

IQ=800mVP-P at 100kHz 1.2VDC. Input IQ

signals driven differentially and in quadrature

from a 50Ω source impedance. TA=25oC

Common mode voltage

Measured differentially

Measured at 100kHz

I/Q source impedance 50Ω

GC=2.0V, no I/Q adjustment

GC=1.5V, no I/Q adjustment

GC=1.0V, no I/Q adjustment

GC=0.5V, no I/Q adjustment

GC=2.0V, no I/Q adjustment

GC=1.5V, no I/Q adjustment

GC=1.0V, no I/Q adjustment

GC=0.5V, no I/Q adjustment

dBc

GC = 2.0 V

dBc

GC = 1.5 V

dBc

GC = 1.0 V

dBc

GC = 0.5 V

μA

μAPP

V

dB

dB/V

kΩ

dB

dB

dB

dB

dBm/Hz

dBm/Hz

dBm

dBm

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

FLO=0dBm, PLO=2400MHz, 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.

*=Not tested in production

5-36

Rev A8 060203

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