HD155111F Datasheet, PDF (24/44 Pages) Hitachi Semiconductor – RF Single-chip Linear IC for PCN Cellular Systems

HD155111F
1st Mixer Measurement Results
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
Load: 400 ohm Balanced
TOKO: 617PT-1206
800 Ω: 50 Ω
Insertion loss: 1.5 dB@225 MHz
Vcc
1 2 4 8 11 20 31 34 41 45
50 Ω 4 p 1000 p
Input (LO)
44
1615 MHz, −10 dBm
1.5 n
50 Ω 3 p
Input (RF)
1840 MHz, −50 dBm
47
3.3 n
48
2p
Lo Buff2
Lo Buff
Gilbert
Cell Mix
5 7 9 22 30 35 40 46
43 ^{100 n}
1000 p
42 _{3 p}
1000 p
Output (IF)
225 MHz
50 Ω
Figure 11 Evaluation Circuit for 1st Mixer
10
16
5
Vcc=3.0V
Pin=-50dBm
0 _{Pin(LO)=−10dBm}
Freq.IF=225MHz
Ta=27°C
-5
14
C.G. [dB]
ICP [dBm]
12
NF SSB [dB]
10
-10
8
-15
1780
1800
1820
1840 1860
Frequency [MHz]
1880
1900
Figure 12 Gain, NF, ICP vs. Frequency
6
1920