RF2948B Просмотр технического описания (PDF) - RF Micro Devices
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RF2948B Datasheet PDF : 18 Pages
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RF2948B
Parameter
Specification
Unit
Min.
Typ.
Max.
Condition
Transmit Power Amp
Linear Output Power
Gain
Output P1dB
Output Impedance
Input Impedance
Power Down Control
6
9
10
12
50
50
dBm
dB
dBm
Ω
Ω
Nominal
Nominal
Logical Controls “ON”
VCC - 0.3 V
VCC + 0.3 V
V
Voltage supplied to the input, not to exceed
3.6 V.
Logical Controls “OFF”
Control Input Impedance
RX VGC Response TIme
RX EN Response TIme
TX EN Response TIme
VPD to RX Response TIme
VPD to TX Response TIme
IF LO Input
Input Impedance
Input Power Range
Input Frequency
RF LO Input
Input Impedance
-0.3
-15
90
0
>1
200
2
330
1.33
50
1050-j1200
-10
33-j110
0.3
0
1000
V
MΩ
ns
S µs
ns
N ms
µs
IG Ω
S dBm
MHz
DEΩ
Voltage supplied to the input.
Full step in gain, to 90% of final output level.
I/Q output VALID
To IF output VALID
To I/Q output VALID
To IF output VALID
The IF LO is divided by 2 and split into
quadrature signals to drive the frequency
mixers.
f = 748 MHz
peak
(2x IF Frequency)
f=2.04GHz unmatched.
Input Power Range
Input Frequency
VREF1 Buffered
Source/Sink Current
Output Voltage
VREF1
Power Supply
Voltage
-10
2000
VREF1 - 10
1.6
2.7
0
dBm
2400
W1
VREF1 + 10
E1.7
1.8
N3.3
3.6
MHz
mA
mV
V
V
Total Current Consumption
Sleep Mode Current
PA Driver Current
R RX Current
BW (MHz)
9
O 12-20
F 20-30
1
18
65
70
110
NOT TX Current
BW (MHz)
9
12-20
20-30
95
105
115
VCC=3.3V, Baseband BW 1MHz to 40MHz
µA
PD=0, RX EN=1
mA
TX EN=1
85
mA
mA
mA
136
mA
mA
mA
11-242
Rev A6 040930
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