HD155111F Datasheet, PDF (20/44 Pages) Hitachi Semiconductor – RF Single-chip Linear IC for PCN Cellular Systems

HD155111F
Measurement Results
LNA Measurement Results (for reference only)
Conditions:
Vcc = 3.0 V
POONRX1 (pin 1) = 3.0 V
POONRX2 (pin 2) = 3.0 V
POONTX (pin 7) = 0 V
3.0 V
1000 p
1 2 4 8 11 20 31 34 41 45
50 Ω
Output(RF)
TRS:
Siemens BFP420
2p
3.3 n
Rbias
100
3
10 p ^Ic
Vbias
0.56 V
Active bias circuit
50 Ω 1000 p
Input(RF)
1840 MHz,
−50 dBm
3.3 n
0.5 p
4.7 k
0.5 p 10 p
6
HD155111F
5 7 9 22 30 35 40 46
Figure 4 Evaluation Circuit for LNA
20
3.5
15
3
10
2.5
5
Vcc=3.0V
0
Pin=−50dBm
Ta=27°C
−5
2
Gain [dB]
ICP [dBm]
1.5
NF [dB]
1
−10
0.5
−15
1780
1800
1820 1840 1860 1880
Frequency [MHz]
2000
0
2020
Figure 5 Gain, NF, ICP vs. Frequency