CMX994 Datasheet, PDF (6/61 Pages) CML Microcircuits – Local Oscillator

Direct Conversion Receivers
3 Block Diagram
Optional
Bandpass Filter
CMX994/CMX994A/CMX994E
LNA
T/R
LNA IN
VCCRF
VCCRXIF
VCCLO
Tx
VCCSYNTH
/6 /4
/2
DVDD
VDDIO
/6 /4
/2 /1
I Channel
VCO 1
Q Channel
PLL
C-BUS
Control
Interface
RXIP
RXIN
RXEN
TXEN
RXQP
RXQN
CSN
RDATA
SCLK
CDATA
RESETN
External
Resonator and
Varactors
Alternative
Local
Oscillator
Reference Oscillator
Figure 1 Block Diagram
 2015 CML Microsystems Plc
Page 6 of 70
D/994_A_E/1