Preliminary
5-31
RF2483
Rev A2 010904
5
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
I/Q Modulator High Band
VCC=2.7V, EN=2.7V, Bandsel=2.7V,
FLO= 0dBm, PLO= 1900MHz, LO HB and
RF OUT HB ports are matched to 50
Ω.
IQ= 800mVP-P at 100kHz 1.2VDC. Input IQ
signals driven differentially and in quadrature
from a 50
Ω source impedance. T
A =25
oC
Baseband Input Voltage*
1.15
1.2
1.25
V
Common mode voltage
Baseband Input Level
0.8
VPP
Measured differentially
Baseband Input Impedance*
5.5
k
Ω
Measured at 100kHz
Input Bandwidth*
50
150
MHz
I/Q source impedance 50
Ω
Sideband Suppression
30
43
dBc
GC= 2.0V, no I/Q adjustment
30
43
dBc
GC= 1.5V, no I/Q adjustment
30
46
dBc
GC= 1.0V, no I/Q adjustment
30
47
dBc
GC= 0.5V, no I/Q adjustment
Carrier Suppression
30
48
dBc
GC= 2.0V, no I/Q adjustment
30
44
dBc
GC= 1.5V, no I/Q adjustment
25
40
dBc
GC= 1.0V, no I/Q adjustment
25
35
dBc
GC= 0.5V, no I/Q adjustment
3rd Harmonic of Modulation
Suppression at FLO-3x100kHz
40
47
dBc
GC= 2.0V
40
47
dBc
GC= 1.5V
35
42
dBc
GC= 1.0V
35
42
dBc
GC= 0.5V
Baseband Inputs DC Current
Drain*
100
µA
Baseband Inputs AC Current
Drain*
100
µA
PP
I/Q Modulator Low Band
VCC=2.7V, EN=2.7V, Bandsel=0V,
FLO= 0dBm, PLO= 900MHz, LO LB and RF
OUT LB ports are matched to 50
Ω.
IQ= 800mVP-P at 100kHz 1.2VDC. Input IQ
signals driven differentially and in quadrature
from a 50
Ω source impedance. T
A =25
oC
Baseband Input Voltage*
1.15
1.2
1.25
V
Common mode voltage
Baseband Input Level
0.8
VPP
Measured differentially
Baseband Input Impedance*
5.5
k
Ω
Measured at 100kHz
Input Bandwidth*
50
150
MHz
I/Q source impedance 50
Ω
Sideband Suppression
30
37
dBc
GC= 2.0V, no I/Q adjustment
30
37
dBc
GC= 1.5V, no I/Q adjustment
30
44
dBc
GC= 1.0V, no I/Q adjustment
30
40
dBc
GC= 0.5V, no I/Q adjustment
Carrier Suppression
30
52
dBc
GC= 2.0V, no I/Q adjustment
30
50
dBc
GC= 1.5V, no I/Q adjustment
25
33
dBc
GC= 1.0V, no I/Q adjustment
15
22
dBc
GC= 0.5V, no I/Q adjustment
3rd Harmonic of Modulation
Suppression at FLO-3x100kHz
40
59
dBc
GC= 2.0V
40
59
dBc
GC= 1.5V
35
48
dBc
GC= 1.0V
35
41
dBc
GC= 0.5V
Baseband Inputs DC Current
Drain*
100
µA
Baseband Inputs AC Current
Drain*
100
µA
PP
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