RF3146
Part of the POLARIS™ TOTAL RADIO™ Solution
Parameter
Overall (GSM850 Mode)
Operating Frequency Range
Maximum Output Power
+34.2
+32.0
Total Efficiency
Input Power Range
Output Noise Power
Forward Isolation 1
Forward Isolation 2
Cross Band Isolation at 2f
0
Second Harmonic
Third Harmonic
All Other
Non-Harmonic Spurious
Input Impedance
Input VSWR
Output Load VSWR Stability
8:1
50
2.5:1
-15
-25
47
0
55
+3
-88
-50
-35
+5
-81
-35
-15
-18
-7
-15
-36
824 to 849
MHz
dBm
dBm
%
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Ω
V
RAMP
=0.2V to V
RAMP MAX
Spurious<-36dBm, RBW=3MHz
Set V
RAMP
where P
OUT
<34.2dBm into 50Ω
load
Set V
RAMP
where P
OUT
<34.2dBm into 50Ω
load. No damage or permanent degradation to
part.
50
55
Ω
dB
Load impedance presented at RF OUT pad
V
RAMP
=0.2V to V
RAMP MAX
Temp = 25°C, V
BATT
=3.5V,
V
RAMP
=V
RAMP MAX
Temp=+85 °C, V
BATT
=3.0V,
V
RAMP
=V
RAMP MAX
At P
OUT
MAX
, V
BATT
=3.5V
Maximum output power guaranteed at mini-
mum drive level
RBW=100kHz, 869MHz to 894MHz,
P
OUT
> +5dBm
TXEnable=Low, P
IN
=+5dBm
TXEnable=High, P
IN
=+5dBm, V
RAMP
=0.2V
V
RAMP
=0.2V to V
RAMP
_R
P
V
RAMP
=0.2V to V
RAMP
_R
P
V
RAMP
=0.2V to V
RAMP
_R
P
V
RAMP
=0.2V to V
RAMP MAX
Min.
Specification
Typ.
Max.
Unit
Condition
Temp=+25 °C, V
BATT
=3.5V,
V
RAMP
=V
RAMP MAX
, P
IN
=3dBm,
Freq=824MHz to 849MHz,
25% Duty Cycle, Pulse Width=1154μs
4
CELLULAR SOLUTIONS
Output Load VSWR Ruggedness
10:1
Output Load Impedance
Power Control V
RAMP
Power Control Range
Notes:
V
RAMP MAX
=0.4*V
BATT
+0.06<1.5V
V
RAMP
_R
P
=V
RAMP
set for 34.2dBm at nominal conditions.
Rev A15 DS060317 W3
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
4-27
RFMD [ RF MICRO DEVICES ]
