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Preliminary
2-493
RF3146
Rev A7 040812 W3
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Overall (GSM850 Mode)
Temp=+25 °C, VBATT=3.5V,
VRAMP=VRAMP MAX, PIN=3dBm,
Freq=824MHz to 849MHz,
25% Duty Cycle, Pulse Width=1154
µs
Operating Frequency Range
824 to 849
MHz
Maximum Output Power
+34.2
dBm
Temp = 25 °C, VBATT=3.5V,
VRAMP=VRAMP MAX
+32.0
dBm
Temp=+85 °C, VBATT=3.0V,
VRAMP=VRAMP MAX
Total Efficiency
47
55
%
At POUT MAX, VBATT=3.5V
Input Power Range
0
+3
+5
dBm
Maximum output power guaranteed at mini-
mum drive level
Output Noise Power
-88
-81
dBm
RBW=100kHz, 869MHz to 894MHz,
POUT > +5dBm
Forward Isolation 1
-50
-35
dBm
TXEnable=Low, PIN=+5dBm
Forward Isolation 2
-35
-15
dBm
TXEnable=High, PIN=+5dBm, VRAMP=0.2V
Cross Band Isolation at 2f0
-18
dBm
VRAMP=0.2V to VRAMP_RP
Second Harmonic
-15
-7
dBm
VRAMP=0.2V to VRAMP_RP
Third Harmonic
-25
-15
dBm
VRAMP=0.2V to VRAMP_RP
All Other
Non-Harmonic Spurious
-36
dBm
VRAMP=0.2V to VRAMP MAX
Input Impedance
50
Ω
Input VSWR
2.5:1
VRAMP=0.2V to VRAMP MAX
Output Load VSWR Stability
8:1
Spurious<-36dBm, RBW=3MHz
Set VRAMP where POUT<34.2dBm into 50Ω
load
Output Load VSWR Ruggedness
10:1
Set VRAMP where POUT<34.2dBm into 50Ω
load. No damage or permanent degradation
to part.
Output Load Impedance
50
Ω
Load impedance presented at RF OUT pad
Power Control VRAMP
Power Control Range
55
dB
VRAMP=0.2V to VRAMP MAX
Notes:
VRAMP MAX=0.4*VBATT+0.06<1.5V
VRAMP_RP=VRAMP set for 34.2dBm at nominal conditions.
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