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