RF2948B Просмотр технического описания (PDF) - RF Micro Devices
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RF2948B Datasheet PDF : 18 Pages
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RF2948B
RX Voltage Gain versus VGC and VCC (Temp=25oC; RX IF
75.00 IN=375MHz; I and Q out ∼ 300mVP-P IF LO=748MHz @ -10dBm)
70.00
65.00
Gain, 2.7V
Gain, 3V
60.00
Gain, 3.3V
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
-5.00
1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00
RX VGC (VDC)
RX IQ Amplitude and Phase Error versus IF LO Amplitude and Temp
(VCC=3V; RX VGC=1.6V; RX IF IN=375MHz, I&Q OUT~650mVP-P; IF LO=748MHz)
1.0
5
Ampl. Err, 25°C
0.9
Ampl. Err, 85°C
4.5
Ampl. Err, -40°C
Phase Err, 25°C
0.8
Phase Err, 85°C 4
Phase Err, -40°C
0.7
3.5
0.6
0.5
0.4
0.3
0.2
3
2.5
W2
1.5
NE1
0.1
0.0
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
R LO Amplitude (dBm)
0.5
0
5.0
O RX 3dB BW versus RBW (Temp=Ambient, VCC=3.15V, VGC=1.6V,
RX IFIN =-67dBm, IF LO=560MHz@-10dBm)
F 30.0
25.0
T 20.0
NO 15.0
RX Gain versus IF LO Amplitude and Temp (VCC=3V; RX
VGC=1.6V; RX IF IN=375MHz, I and Q OUT~650mVP-P; IF LO=748MHz)
41.5
41.0
40.5
40.0
39.5
39.0
38.5
Gain, 25°C
Gain, 85°C
38.0
Gain, -40°C
37.5
S 37.0
N 36.5
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
5.0
LO Ampl. (dBm)
IG RX OP1dB versus VGC and Temp (VCC = 3 V; RX IFIN = 375
1400.0
MHz; IF LO = 748 MHz at -10 dBm)
S 1350.0
1300.0
E1250.0
1200.0
D1150.0
1100.0
1050.0
1000.0
950.0
900.0
850.0
800.0
750.0
700.0
650.0
600.0
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RX VGC (VDC)
TX 3dB BW Point versus RBW (Broadband 50Ω match on IFOUT, Temp=Ambient,
VCC=3.15V, GCTX=1.5V, I&Qin=100mVP-P, IFLO=560MHz@-10dBm)
50.0
45.0
40.0
35.0
30.0
25.0
20.0
10.0
15.0
10.0
5.0
5.0
0.0
1.0
10.0
100.0
RBW [kΩ]
1000.0
0.0
1.0
10.0
100.0
RBW [kΩ]
1000.0
Rev A6 040930
11-253
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