2-522
RF3145
Rev A4 050919
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
GSM US 900MHz Band
Temp=+25 °C, VCC=3.5V,
BandSelect=Low, VMODE=Low,
VRAMP=VRAMP,MAX, PIN=+4dBm
Freq=880MHz to 915MHz, 25% Duty Cycle,
Pulse Width=1154
μs, TX EN=High
Operating Frequency Range
880
915
MHz
Maximum Output Power
+34.5
+35.0
dBm
Temp = 25 °C, VCC=3.5V,
VRAMP=VRAMP,MAX
+32.5
dBm
Temp=+85oC, VBATT=3.0V,
VRAMP=VRAMP,MAX
0dBm
VRAMP=0.2V
Total Efficiency (PAE)
45
55
%
At POUT,MAX, VCC=3.5V
35
%
At POUT=31.5dBm
Input Power for Max Output
+2
+4
+6
dBm
Folding Conversion Gain
-5
dB
F0=915MHz, other signal 895MHz at
-40dBm, measured at 935MHz in 100kHz
RBW (Max Power)
Output Noise Power
-82
-80
dBm
RBW=100kHz, 925MHz to 935MHz,
POUT>+5dBm
-86
-84
dBm
RBW=100kHz, 935MHz to 960MHz,
POUT>+5dBm
Forward Isolation
-25
dBm
TX_ENABLE=0V, VRAMP=0.2, PIN=+6dBm
Second Harmonic
-5
dBm
Over all power levels
Third Harmonic
-7
dBm
Over all power levels
All other Non-Harmonic Spurious
-36
dBm
Cross Band Coupling 2F0
-20
dBm
Measured at DCS/PCS port. Over all power
levels.
Input Impedance
50
Ω
Input VSWR
2.5:1
Over all power levels
Output Load VSWR
6:1
Spurious<-36dBm, VRAMP =0.2V to 1.6V,
RBW=3MHz
Output Load Ruggedness
10:1
Output Load Impedance
50
Ω
Load impedance presented at RF OUT pad
Note: VRAMP,MAX=3/8*VBATT+0.18<1.6V
Power Control VRAMP,
GSM900 GMSK Mode
Power Control “ON”
1.6
V
Max POUT, Voltage supplied to the input
Power Control “OFF”
0.2
0.25
V
Minimum POUT, Voltage supplied to the
input.
Power Control Range
33
dB
VRAMP=0.2V to 1.6V
VRAMP Input Capacitance
15
pF
DC to 2MHz
VRAMP Input Current
10
μAV
RAMP =1.6 V
Turn On/Off Time
4
μSV
RAMP = 0 V to 1.6 V
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