HD155121F Datasheet, PDF (38/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
PGA and Demodulator Typical Performance (cont)
Power gain vs. Bit number with Temperature
60 ^{VCC = 3V}
40
20
0
−20
−40
−60
0
Ta=−40°C
Ta=−25°C
Ta=27°C
Ta=85°C
Ta=100°C
10 20 30 40 50
Bit number
Power gain vs. V_CC and Temperature
60
40
Bit number 46
20
0
Bit number 26
−20
−40
−60
−80
2
Bit number 6
Operating voltage range
2.5
3
3.5
V_CC (V)
Ta=−40°C
Ta=−25°C
Ta=27°C
Ta=85°C
Ta=100°C
4
4.5
1dB Input compression point vs. Bit number
0 ^{VCC = 3V, Ta = 25°C}
−10
−20
−30
−40
−50
−60
−70
0
10 20 30 40 50
Bit number
1dB Input compression point vs.
0 ^{VCC and Temperature}
Operating voltage range
−10
−20
−30
−40
−50
−60
Ta=−40°C
Ta=−25°C
Ta=27°C
Ta=85°C
Ta=100°C
−70
2
2.5
3
3.5
4
4.5
V_CC (V)
38