U2794B_08 Datasheet, PDF (11/15 Pages) ATMEL Corporation – 1000-MHz Quadrature Demodulator

U2794B
6.1 External Components
CUCC
CRFX
CLO
CNLO
CRF
CII, CQQ
T3
CI, CIX
CQ, CQX
CPDN
CGC
CPC
CNPC
GSW
6.2 Calibration Part
100 nF
1 nF
100 pF
1 nF
100 pF
100 pF
100 pF
100 pF
100 pF
optional external lowpass filters
transmission line for RF-input matching, to connect optionally
optional for AC-coupling at
baseband outputs
not connected
not connected
not connected
gain switch
CO, CS, CL 100 pF
RL
50Ω
6.3 Conversion to Single Ended Output
(see datasheet of AD620)
OP1, OP2
RG1, RG2
RD1, RD2
CS1, CS2
CS3, CS4
450Ω
100 nF
100 nF
AD620
prog. gain, see datasheet, for 5.6 kΩ a gain of 1 at 50Ω is
achieved together with RD1 and RD2.
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4653F–CELL–11/08