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RF2483

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

Parameter

I/Q Modulator High Band

(2400 MHz)

Baseband Input Voltage*

Baseband Input Level

Baseband Input Impedance*

Input Bandwidth*

Sideband Suppression

Carrier Suppression

3rd Harmonic of Modulation

Suppression at FLO-3x100kHz

Baseband Inputs DC Current Drain*

Baseband Inputs AC Current Drain*

Variable Gain Amplifiers High

Band (2400MHz)

Gain Control Voltage Range

Gain Control Range

Gain Control Slope

Gain Control Input Impedance*

Output Power

Output Noise at FLO+20MHz*

Output P1dB*

Output IP3*

*=Not tested in production

Specification

Min. Typ. Max.

1.15

1.2

1.25

0.8

5.5

50

150

30

34

30

37

38

43

40

47

30

38

30

38

22

32

16

22

Unit

Condition

VCC=2.7V, EN=2.7V, Bandsel=2.7V, FLO=2400MHz,

PLO=0dBm, LO HB and RF OUT HB ports are matched

to 50. IQ=800mVP-P at 100kHz 1.2VDC. Input IQ sig-

nals driven differentially and in quadrature from a

50 source impedance. TA=25oC

V

Common mode voltage

VPP Measured differentially

k Measured at 100kHz

MHz I/Q source impedance 50

dBc GC=2.0V, no I/Q adjustment

dBc GC=1.5V, no I/Q adjustment

dBc GC=1.0V, no I/Q adjustment

dBc GC=0.5V, no I/Q adjustment

dBc GC=2.0V, no I/Q adjustment

dBc GC=1.5V, no I/Q adjustment

dBc GC=1.0V, no I/Q adjustment

dBc GC=0.5V, no I/Q adjustment

50

58

dBc GC=2.0V

50

58

dBc GC=1.5V

50

59

dBc GC=1.0V

50

62

dBc GC=0.5V

100

A

100

APP

VCC=2.7V, EN=2.7V, Bandsel=2.7V, FLO=2400MHz,

PLO=0dBm, LO HB and RF OUT HB ports are matched

to 50. Input IQ signals driven differentially and in

quadrature from a 50 source impedance. TA=25oC

0

2.0

V

32

35

dB Difference between output power at GC=2.0V and

GC = 0.5 V

26

29

33

dB/V Calculated GC=1.0V and 1.5V

10

k

-3

0.4

3

dB

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

-10

-7

-3

dB

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

-22

-18

-14

dB

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

-39

-35

-30

dB

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

-155

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

-156.7

dBm/Hz GC=2.0V, IQ=0mVP-P

+6

dBm IQ at 100kHz

+20

dBm GC=2.0V. Extrapolated from IM3 with two baseband

tones at 90kHz applied differentially, in quadrature, at

both I and Q inputs, each tone 400mVP-P.

6 of 34

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

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

DS110505

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