Datasheet

ADF4116/ADF4117/ADF4118
Rev. D | Page 23 of 28
LOW-PASS
FILTER
LOW-PASS
FILTER
ADF4118
VCO190-1960T
18Ω
100pF
18Ω
REF
IN
100pF
RF
IN
ARF
IN
B
CP
SERIAL
DIGITAL
INTERFACE
TCXO
FOX801BH-130
100pF
51Ω
18pF
1kΩ
10kΩ
6.8nF
18Ω
RF
OUT
POWER SUPPLY CONNECTIONS AND DECOUPLING CAPACITORS
ARE OMITTED FROM DIAGRAM FOR CLARITY.
AD9761
TxDAC
REFIO
FS ADJ
MODULATED
DIGITAL
DATA
QOUTB
IOUTA
IOUTB
QOUTA
IBBP
QBBP
IBBP
QBBP
AD8346
LOIN LOIP
VOUT
100pF
100pF
2kΩ
0.1µF
100pF
680pF
00392-037
Figure 37. Direct Conversion Transmitter Solution