MLX71122_16 Datasheet, PDF (11/59 Pages) Melexis Microelectronic Systems – 300 to 930MHz FSK/FM/ASK Receiver

MLX71122
300 to 930MHz FSK/FM/ASK Receiver
Datasheet
Pin No.
10
Name
RBIAS
I/O Type
analog I/O
11
VEEVCO ground
12
TNK1 ^{analog I/O}
13
TNK2 ^{analog I/O}
15
LF
analog I/O
14 VCCVCO supply
16
ENRX
CMOS
input
Functional Schematic
VCC
RBIAS
50
10
VCC
I_ref
VEE
TNK1
12
VCC
VCC
VD
VD
TNK2
13
Description
external resistor for voltage
and current biasing, 30k
by default, to provide stable
parameters over
temperature and supply
variations
ground of VCO
VCO collector output,
connection 1 to external
LC tank
VEE
VEE
VCO collector output,
connection 2 to external
LF
LC tank
VCOCUR
VEE
VCC
VCC
charge pump output,
VCO
connection to external loop
filter
LF
2.5k
15
VEE
ENRX
16
VCC
120
positive supply of VCO
enable/disable control input
(with internal pull-down)
VEE
REVISION 014 – AUGUST, 2016
390 10 71122 01
Page 11 of 59