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RF2948B
Rev A6 040930
Parameter
Specification
Unit
Condition
Min.
Typ.
Max.
Transmit Power Amp
Linear Output Power
6
dBm
Gain
9
dB
Output P1dB
10
12
dBm
Output Impedance
50
Ω
Nominal
Input Impedance
50
Ω
Nominal
Power Down Control
Logical Controls “ON”
VCC-0.3V
VCC+0.3V
V
Voltage supplied to the input, not to exceed
3.6V.
Logical Controls “OFF”
-0.3
0
0.3
V
Voltage supplied to the input.
Control Input Impedance
>1
M
Ω
RX VGC Response TIme
200
ns
Full step in gain, to 90% of final output level.
RX EN Response TIme
2
µs
I/Q output VALID
TX EN Response TIme
330
ns
To IF output VALID
VPD to RX Response TIme
1.33
ms
To I/Q output VALID
VPD to TX Response TIme
50
µs
To IF output VALID
IF LO Input
The IF LO is divided by 2 and split into
quadrature signals to drive the frequency
mixers.
Input Impedance
1050-j1200
Ω
f=748MHz
Input Power Range
-15
-10
0
dBm
peak
Input Frequency
90
1000
MHz
(2x IF Frequency)
RF LO Input
Input Impedance
33-j110
Ω
f=2.04GHz unmatched.
Input Power Range
-10
0
dBm
Input Frequency
2000
2400
MHz
VREF1 Buffered
Source/Sink Current
1
mA
Output Voltage
VREF1-10
VREF1+10
mV
VREF1
1.6
1.7
1.8
V
Power Supply
Voltage
2.7
3.3
3.6
V
Total Current Consumption
VCC=3.3V, Baseband BW 1MHz to 40MHz
Sleep Mode Current
1
µAPD=0, RX EN=1
PA Driver Current
18
mA
TX EN=1
RX Current
BW (MHz)
9
65
85
mA
12-20
70
mA
20-30
110
mA
TX Current
BW (MHz)
9
95
136
mA
12-20
105
mA
20-30
115
mA
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