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RF2483

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

Parameter

I/Q Modulator Low Band, cont.

Suppression at FLO-3x100kHz

Baseband Inputs DC Current Drain*

Baseband Inputs AC Current Drain*

Variable Gain Amplifiers High

Band (1700MHz to 2200MHz)

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*

Intermodulation IM3 tone at

FLO+70kHz and FLO+130kHz

relative to tone at FLO+90kHz

*=Not tested in production

Specification

Unit

Min. Typ. Max.

Condition

40

57

dBc GC=2.0V

40

57

dBc GC=1.5V

40

60

dBc GC=1.0V

40

52

dBc GC=0.5V

100

A

100

APP

VCC=2.7V, EN=2.7V, Bandsel=2.7V, FLO=1900MHz,

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

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

-8

-5

-2

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

-24

-20

-16

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

-38

-35

-30

dBm 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.

Two baseband tones at 90kHz and 110kHz applied

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

each tone 400mVP-P.

40

50

dBc GC=2.0V

40

50

dBc GC=1.5V

40

50

dBc GC=1.0V

40

47

dBc GC=0.5V

4 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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