MRF89XAM8A-I Datasheet, PDF (55/140 Pages) Microchip Technology – Ultra Low-Power, Integrated ISM Band Sub-GHz Transceiver

3.0 FUNCTIONAL DESCRIPTION
The functional block diagram of the MRF89XA is
illustrated in Figure 3-1. The functional operations of
individual blocks are explained in subsequent sections.
FIGURE 3-1:
MRF89XA FUNCTIONAL BLOCK DIAGRAM
MRF89XA
PARS
PA
RFIO
I
Q
I
LO1 TX
Q
I
Q
LO2 TX
LO2 TX
Waveform
Generator
LNA
OSC1
XO
OSC2
LO1 RX
RSSI
LO2 RX
OOK
Demod
FSK
Demod
BitSync
Control
Frequency Synthesizer
LO
Generator
LO1 RX
I _{LO2 RX}
Q
I
Q
LO1 TX
I _{LO2 TX}
Q
IRQ0
IRQ1
SDI
SDO
SCK
CSCON
CSDAT
CLKOUT
DATA
TEST<8:0>
PLOCK
© 2010–2011 Microchip Technology Inc.
Preliminary
DS70622C-page 55