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RF input
42-870 MHz
SURGE
CB TRAP
RFIN
band-split
filter
LNA
H3H5/
wireless
filter
RF FILTER
RFAGC
IR mixer
IF filters
AGCK
IF AGC IFP
IFN
VIFAGC
AGC1
AGC2
AGC3
FRAC-N
DIVIDER
CLOCKS
Xtal
TEMPERATURE
SENSOR
AGC4
AGC5
LO
DIVIDERS
PLD
AGC
VSYNC
CONTROL DETECTOR
PULSE
SHAPER
LC VCO
I2C-BUS CONTROL
AND
INTERFACES
VSYNC
AS_XTSEL
SDA
SCL
IRQ
loop
filter
001aam151
Fig 1. Block diagram