RF2948B RF Micro Devices, RF2948B Datasheet - Page 15
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RF2948B
Manufacturer Part Number
RF2948B
Description
2.4GHz SPREAD-SPECTRUM TRANSCEIVER
Manufacturer
RF Micro Devices
Datasheet
1.RF2948B.pdf
(18 pages)
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Rev A6 040930
75.00
70.00
65.00
60.00
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
30.0
25.0
20.0
15.0
10.0
-5.00
5.00
0.00
5.0
0.0
-30.0
1.0
1.20
IN=375MHz; I and Q out ∼ 300mV
(V
RX IQ Amplitude and Phase Error versus IF LO Amplitude and Temp
RX 3dB BW versus R
RX Voltage Gain versus V
CC
=3V; RX V
-25.0
1.30
GC
RX IF
=1.6V; RX IF IN=375MHz, I&Q OUT~650mV
-20.0
1.40
IN
=-67dBm, IF LO=560MHz@-10dBm)
10.0
LO Amplitude (dBm)
1.50
-15.0
BW
RX V
R
(Temp=Ambient, V
BW
GC
1.60
GC
[kΩ]
-10.0
and V
P-P
(V
DC
IF LO=748MHz @ -10dBm)
)
1.70
100.0
CC
-5.0
(Temp=25
CC
=3.15V, V
1.80
Ampl. Err, 25°C
Ampl. Err, 85°C
Ampl. Err, -40°C
Phase Err, 25°C
Phase Err, 85°C
Phase Err, -40°C
P-P
; IF LO=748MHz)
0.0
Gain, 2.7V
Gain, 3V
Gain, 3.3V
o
GC
1.90
C; RX IF
=1.6V,
5.0
1000.0
2.00
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
41.5
41.0
40.5
40.0
39.5
39.0
38.5
38.0
37.5
37.0
36.5
1400.0
1350.0
1300.0
1250.0
1200.0
1150.0
1100.0
1050.0
1000.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
950.0
900.0
850.0
800.0
750.0
700.0
650.0
600.0
5.0
0.0
-30.0
TX 3dB BW Point versus R
1.0
V
1.2
RX Gain versus IF LO Amplitude and Temp
GC
RX OP1dB versus VGC and Temp (
=1.6V; RX IF IN=375MHz, I and Q OUT~650mV
Gain, 25°C
Gain, 85°C
Gain, -40°C
-25.0
1.3
V
CC
=3.15V, GCTX=1.5V, I&Qin=100mV
-20.0
MHz; IF LO = 748 MHz at -10 dBm)
1.4
10.0
LO Ampl. (dBm)
1.5
-15.0
RX VGC (V
R
BW
BW
[kΩ]
1.6
(Broadband 50Ω match on IFOUT, Temp=Ambient,
-10.0
P-P
, IFLO=560MHz@-10dBm)
RF2948B
DC
)
1.7
100.0
V
-5.0
CC
P-P
= 3 V; RX IF
; IF LO=748MHz)
1.8
(V
0.0
CC
=3V; RX
1.9
IN
= 375
1000.0
5.0
11-253
2.0