RF2948B Просмотр технического описания (PDF) - RF Micro Devices
Номер в каталоге
Компоненты Описание
производитель
RF2948B Datasheet PDF : 18 Pages
| |||
RF2948B
Modulator Amplitude Error and Image Suppression versus IF LO
Amplitude and Temp (VCC=3V; IF LO=748MHz; IQ IN=1MHz @ 100mVP-P)
1.0
60.0
Ampl.Err, 25°C
0.9
Ampl. Err, 85°C
Ampl. Err, -40°C
54.0
Image Supp, 25°C
0.8
Image Supp, 85°C
Image Supp, -40°C
48.0
0.7
42.0
Modulator LO Suppression versus IF LO Amplitude and Temp
(VCC=3V; IF LO=748MHz; IQ IN=1 MHz @ 100mVP-P)
28.0
LO Supp, 25°C
27.5
LO Supp, 85°C
27.0
LO Supp, -40°C
26.5
0.6
36.0
26.0
0.5
30.0
25.5
0.4
24.0
25.0
0.3
18.0
0.2
12.0
0.1
6.0
0.0
0.0
-30.0 -26.0 -22.0 -18.0 -14.0 -10.0 -6.0 -2.0 2.0 6.0
LO Amplitude (dBm)
Upconverter Voltage Gain versus VGC and VCC (Temp=25oC;
TX IF IN=374MHz @ -35dBm, RF LO=2068MHz @ -5dBm)
14.0
13.0
Gain, 2.7V
12.0
11.0
Gain, 3V
10.0
Gain, 3.3V
9.0
8.0
7.0
24.5
24.0
S 23.5
N 23.0
-30.0 -26.0 -22.0 -18.0 -14.0 -10.0 -6.0 -2.0 2.0 6.0
LO Ampl (dBm)
G Upconverter Voltage Gain versus RF LO Amplitude and Temp
I (VCC=3V; TX VGC=1.6V; TX IF IN=374MHz@-35dBm, RF LO=2068MHz)
8.0
S 6.0
4.0
E 2.0
D0.0
-2.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-6.0
-8.0
W -10.0
-12.0
E -14.0
N -16.0
-18.0
Gain, 25°C
Gain, 85°C
-4.0
-5.0
-6.0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
R TX VGC (VDC)
Upconverter Output P1dB versus RF LO Amplitude and Temp
O (VCC=3V; TX VGC=1.6V; TX IF IN=374MHz, RF LO=2068MHz)
F 0.0
-20.0
-22.0
-26.0
-22.0
-18.0
-14.0 -10.0 -6.0
LO Amplitude (dBm)
Gain, -40°C
-2.0
2.0
6.0
Upconverter Output P1dB versus VGC and VCC (Temp=25oC;
TX IF IN=374MHz, RF LO=2068MHz @ -5dBm)
-2.0
-2.0
-4.0
T -6.0
-8.0
O -10.0
N-12.0
-14.0
-2.5
OP1dB, 2.7V
-3.0
OP1dB, 3V
-3.5
OP1dB, 3.3V
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
-16.0
-7.0
-18.0
-7.5
-20.0
-22.0
-24.0
-8.0
OP1dB, 25°C
-8.5
OP1dB, 85°C
-9.0
OP1dB, -40°C
-9.5
-26.0
-26.0 -22.0 -18.0 -14.0 -10.0 -6.0
-2.0
2.0
6.0
LO Amplitude (dBm)
-10.0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
TX VGC (VDC)
11-254
Rev A6 040930
Share Link: 