MAX1473 Datasheet, PDF (14/17 Pages) Maxim Integrated Products – 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range

315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
Functional Diagram
LNASRC AGCDIS LNAOUT MIXIN1 MIXIN2
4
15
6
8
9
IRSEL
11
MIXOUT
12
IFIN1 IFIN2
17 18
LNAIN ³
AVDD ^2,7
VDD5 ²⁴
AUTOMATIC
LNA
GAIN
CONTROL
3.3V REG
DVDD ¹⁴
DIVIDE
BY 64
VCO
DGND ¹³
PHASE
DETECTOR
LOOP
FILTER
AGND5,10
÷1
÷2
16
XTALSEL
CRYSTAL
DRIVER
1 28
XTAL1 XTAL2
0˚
Q
IMAGE
REJECTION
∑
90˚
I
MAX1473
IF LIMITING
AMPS
RSSI
DATA
FILTER
R_DF2
R_DF1
100kΩ
100kΩ
POWER
DOWN
DATA
SLICER
27
25
PWRDN DATAOUT
20 23 19
DSN DSP DFO
26
21
PDOUT OPP
22
DFFB
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