MLX71121 Datasheet, PDF (24/28 Pages) Melexis Microelectronic Systems – 300 to 930MHz FSK/FM/ASK Receiver

5 Test Circuits
5.1 Dual-Channel Application Circuit
• for antenna-diversity applications
• for frequency-diversity applications
MLX71121
300 to 930MHz
FSK/FM/ASK Receiver
FSK
ASK
VCC
output
L1
L2
CB3
C4
L3
XTAL
C3 _{1 LNAI1}
2 VEE
C5 ^{3 LNAO1}
4 MIXP
5 MIXN
C6
6 LNAO2
MLX71121
32L QFN 5x5
CX
RSSI 24
RSSI
CRS
CINT 23
VCC 22
CF3
PDN 21
PDP 20
SLC 19
CP2
CP1
CB2
7 VEE
DFO 18
C9 ^{8 LNAI2}
DF1 17
9 10 11 12 13 14 15 16
CB1
CF2
FSK
ASK
CF1
CB0
Fig. 11: Dual-channel circuit schematic, peak detectors activated
39010 71121
Rev. 007
Page 24 of 28
Data Sheet
Feb/08