HD155121F Datasheet, PDF (44/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
IQ Modulator and OffsetPLL Typical Performance (cont)
Lock up time vs. Temperature
GSM mode (902MHz)
100
Lock up time vs. Temperature
PCN mode (1747MHz)
100
80
80
60
60
40
40
20
Operating voltage range
0
−60 −40 −20 0 20 40 60 80 100 120
Temperature (°C)
20
Operating voltage range
0
−60 −40 −20 0 20 40 60 80 100 120
Temperature (°C)
Lock up time vs. V_CC
GSM mode (902MHz)
100
80
60
40
20
Operating voltage range
0
2
2.5
3
3.5
4
4.5
V_CC (V)
Lock up time vs. V_CC
PCN mode (1747MHz)
100
80
60
40
20
Operating voltage range
0
2
2.5
3
3.5
4
4.5
V_CC (V)
44