2-262
RF3108
Rev A3 010702
2
Absolute Maximum Ratings
Parameter
Rating
Unit
Supply Voltage
-0.5 to +6.0
VDC
Power Control Voltage (VAPC1,2)
-0.5 to +3.0
V
DC Supply Current
2400
mA
Input RF Power
+13
dBm
Duty Cycle at Max Power
50
%
Output Load VSWR
8:1
Operating Case Temperature
-40 to +85
°C
Storage Temperature
-55 to +150
°C
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Overall (GSM Mode)
Temp= +25°C, VCC=3.5V, VAPCGSM=2.6V,
PIN=6dBm, Freq=880MHz to 915MHz,
25% Duty Cycle, Pulse Width= 1154
µs
Operating Frequency Range
880 to 915
MHz
Maximum Output Power
+34.5
35.5
dBm
Temp = 25°C, VCC=3.5V, VAPCGSM =2.6V
+32.0
dBm
Temp= +85 °C, VCC=2.9V, VAPCGSM =2.6V
Total Efficiency
47
55
%
At POUT,MAX,VCC=3.5V
Input Power for Max Output
+4
+6
+8
dBm
Output Noise Power
-72
dBm
RBW= 100kHz, 925MHz to 935MHz,
POUT > 34.5dBm
-81
dBm
RBW= 100kHz, 935MHz to 960MHz,
POUT > 34.5dBm
Forward Isolation
-30
dBm
VAPCGSM=0.2V, PIN=+8dBm
Second Harmonic
-40
-35
dBc
Third Harmonic
-50
-43
dBc
All other non harmonic spurious
-36
dBm
Input Impedance
50
Ω
Input VSWR
2.5:1
POUT,MAX-5dB<POUT<POUT,MAX
Output Load VSWR
8:1
Spurious<-36dBm, VAPCGSM=0.2V to 2.6V,
RBW= 100kHz
Output Load Impedance
50
Ω
Load impedance presented at RF OUT pad
Power Control VAPC1
Power Control “ON”
2.6
V
Max. POUT, Voltage supplied to the input
Power Control “OFF”
0.2
0.5
V
Min. POUT, Voltage supplied to the input
Power Control Range
70
dB
VAPC1,2=0.2V to 2.6V
Gain Control Slope
100
dB/V
POUT=-10dBm to 35dBm
APC Input Capacitance
10
pF
DC to 2MHz
APC Input Current
4.5
5
mA
VAPC=2.6V
10
µAV
APC =0V
Turn On/Off Time
2
µSV
APC =0 to 2.6V
Overall Power Supply
Power Supply Voltage
3.5
V
Specifications
2.9
4.7
V
Nominal operating limits, POUT<+33dBm
Power Supply Current
2
A
DC Current at POUT,MAX
110
µAP
IN <-30 dBm, VAPC1,2 =0.2 V,
Temp= -40to+85 °C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
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