HD155121F Datasheet, PDF (6/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
Block Diagram
from
System controller
GNDDIV
VCCDIV
1172MHz
(Rx: 1580MHz, Tx: 1575MHz)
RFLOIN
GNDMIX1
VCCMIX1
MIX1OUT
MIX1OUTB
POONRX1
POONRX2
POONTX
MIX1INB2
MIX1IN2
from Antenna
6
from System controller
MIX2OB
IOUT
IOUTB
QOUT
QOUTB
GNDIQ
VCCIQ
MODB
IIN
IINB
QIN
QINB