RF2705 View Datasheet(PDF) - RF Micro Devices
Part Name
Description
Manufacturer
RF2705 Datasheet PDF : 24 Pages
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RF2705
Parameter
Specification
Unit
Min.
Typ.
Max.
Output Performance with CW Baseband Inputs
Low Band Mode (GSM850/GSM900)
Mode=Low Band FLOx1 (see Control Logic Truth Table for Mode Control Settings)
VGA and PA Driver
Output Power 8PSK Modulated*
Output Power CW
0
*
-44
Gain Control Voltage Range 0.2
Gain Control Range
+2.5
2.2
-1.2
-13.5
-30
-40
42
dBm
+5
dBm
dBm
dBm
dBm
-37
dBm
2.0
V
dB
Gain Control Slope
28
dB/V
Modulator
Sideband Suppression
-36
-30
dBc
*
-36
-30
dBc
*
-36
-30
dBc
*
-36
-30
dBc
*
-36
-30
dBc
Carrier Suppression
-44
-34
dBc
-44
-34
dBc
*
-44
-34
dBc
-44
-34
dBc
-40
-34
dBc
3rd Harmonic of Modulation
Suppression at FC-3x300kHz
-49
-40
dBc
Spurious Outputs
Spurious Outputs at Integer
Harmonics of 1/2xFLOHB*
FLO HB
-62.0
dBm
(3/2)xFLO LB
-19.0
dBm
Output Compression
Output P1dB*
+7.0
dBm
* Not tested in Production
** Provides the same output power as modulated signal with associated crest factor.
Condition
VCC=2.7V, T=+25°C,
LO=824MHz to 915MHz at 0dBm,
IQ=800mVP-P** at 100kHz,
unless otherwise noted
GC=2.0V, IQ=1.2VP-P 8PSK
GC=2.0V, IQ=800mVP-P at 100kHz
GC=1.5V, IQ=800mVP-P at 100kHz
GC=1.0V, IQ=800mVP-P at 100kHz
GC=0.5V, IQ=800mVP-P at 100kHz
GC=0.2V, IQ=800mVP-P at 100kHz
Difference between output power at
GC=2.0V and GC=0.2V
Calculated between GC=0.5V and 1.5V
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=0.2V, 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=0.2V, No I/Q adjustment
GC = 2.0 V
FLO/2 Mode
GC=2.0V, I/Q=800mVP-P at 100kHz
Second harmonic of carrier and LO leakage
Third harmonic of carrier
I/Q = 100 kHz
5-118
Rev A4 041026
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