HD155101BF Datasheet, PDF (31/50 Pages) Hitachi Semiconductor – RF Single-chip Linear IC for GSM and EGSM Systems

HD155101BF
AGC Measurement Results
3.0 V
1000 p
45 MHz
50 Ω _{1000 p}
12
4 8 11 20 31 34 41 45
150 150 Mixer2 output R
37
36
1000 p ^{50 Ω: 200 Ω}
300
TOKO
617DB-1018
insertion loss = 3.6 dB _{Power on/off}
control
ATT AGC AMP
2k
33
32
Linearizer
IQ Demodulator
IF AMP + Mixer2
IF VCO
Divider
LNA & Mixer 1
Transmitter block
29
2k
IQ Demo
5 7 9 22 30 35 40 46
Output test-circuit
for AGC block
evaluation only
Output (MIX2)
200 Ω: 50 Ω ^{45 MHz}
3300 p
3300 p _{3300 p}
TOKO
Vcont
617DB-1018
0.15 to 2.3 V _{insertion loss = 6.1 dB}
Conditions:
Vcc = 3.0 V
POONRX1 (pin 1) = 3.0 V
POONRX2 (pin 2) = 3.0 V
POONTX (pin 7) = 0 V
Figure 25 Evaluation Circuit for the AGC & Power On Control Blocks
80
Ta=−40°C
60
Ta= 27°C
Ta= 90°C
40
20
0
−20
Vcc=3.0V,
−40
Freq=45MHz,
Zin=300Ω
−60
0
0.5
1
1.5
2
2.5
Vcont [V]
Figure 26 Power Gain vs. Vcont Voltage