参数资料
型号: PMB2333
厂商: SIEMENS A G
元件分类: 衰减器
英文描述: ICs for Communications
中文描述: UP/DOWN CONVERTER
文件页数: 59/69页
文件大小: 1131K
代理商: PMB2333
PMB 2333
Semiconductor Group
59
09.97
3.3.2
System calculations
Due to the use of a SAW filter for mixer input matching and balancing an isolated
measurement of the mixer figures is not possible. The following system calculations
have valid entries only for the Gain, IP3, and Noise Figure. The input values are either
from extra measurements (e.g. SAW filter insertion loss) or adjusted to give a cascade
figure that can be measured (e.g. filter+mixer IP3). All non-fat typeface figures have no
meaning.
LNA measurement
Hewlett-Packard NoiseCalc AppCAD
+---+ +---+
-| 1 +---| 2 +-
+---+ +---+
Noise Figure (dB)
0.10 1.65
Gain (dB)
-0.10 20.00
IP3 (dBm) 100.00
20.00
System Temp. (oC) 25.0 Reference Temperature (oC) 25.0
Input Power (dBm) -30.0 Noise Bandwidth (MHz) 1.00000
Pout (dBm) -30.1 -10.1
Cascade NF (dB)
1.75
Cascade Gain (dB)
19.90
Noise Temperature (oK) 143.9 Input Intercept Point (dBm)
0.1
Signal-to-Noise Ratio (dB) 82.2 Output Intercept Point (dBm)
20.0
Spur Free Dynamic Range (dB) 74.9 IM3 Output Level (dBm) -70.3
Nominal Detectable Sig (dBm) -112.2
1)
2)
PCB loss
PMB 2333 LNA
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