
5-117
RF2705
Rev A4 041026
Parameter
Specification
Typ.
Unit
Condition
Min.
Max.
Output Performance with CW Baseband Inputs
Wideband Mode
Mode=Wideband F
LO
x2 (see Control Logic Truth Table for Mode Control Settings)
VGA and PA Driver
V
CC
=2.7V, T=+25°C, LO=975MHz to
990MHz at -10dBm, IQ=540mV
P-P
** at
100kHz, unless otherwise noted
GC=2.0V, IQ=0.8V
P-P
at HQPSK
Output Power W-CDMA Modu-
lated*
Output Power CW
Gain Control Voltage Range
Gain Control Range
5
dBm
2
5
8
dBm
V
dB
GC=2.0V
0.2
2.0
92
Difference between output power at
GC=2.0V and GC=0.2V
Calculated between GC=1.0V and 0.5V
Gain Control Slope
73
dB/V
Modulator
Sideband Suppression
-48
-50
-50
-50
-42
-41
-38
-23
-55
-30
-30
-30
-30
-30
-30
-30
-10
-50
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
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
GC=2.0V
*
*
*
Carrier Suppression
3rd Harmonic of Modulation
Suppression at F
C
-3x300kHz
Spurious Outputs
Spurious Output at Integer Multi-
ples of FLO LB*
GC=2.0V, I/Q=540mV
P-P
at 100kHz
FLO LB
4xFLO LB
6xFLO LB
-60.0
-14.0
-47.0
dBm
dBm
dBm
FLO LB leakage
Second harmonic of carrier
Third harmonic of carrier
0
0
Output Compression
Output P1dB*
Intermodulation
Output IP3*
+11.5
dBm
I/Q=100kHz
+20
dBm
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 400mV
P-P
.
GC=2.0V
Intermodulation IM3 tone at
F
C
+70kHz and F
C
+130kHz
relative to tones at
F
C
+90kHz and F
C
+110kHz
-37
dBc
-40
dBc
GC=1.5V
* Not tested in Production
** Provides the same output power as modulated signal with associated crest factor.