U2794B Datasheet, PDF (9/11 Pages) TEMIC Semiconductors – 1000 MHz Quadrature Demodulator

TELEFUNKEN Semiconductors
Board Layout
U2794B
95 9853
External Components
CUCC 100 nF
CRFX 1 nF
CLO 100 pF
CNLO 1 nF
CRF 100 pF
CII, CQQ optional external lowpass filters
T3
transmission line for RF–input matching,
to connect optionally
CI, CIX, optional for ac-coupling at
CQ, CQX baseband outputs
CPDN 100 pF
CGC 100 pF
CPC 100 pF
CNPC 100 pF
GSW gain switch
Calibration Part
W ^{CO, CS, CL 100 pF}
RL
50
Conversion to Single Ended Output
OP1, OP2
RG1, RG2
RD1, RD2
CS1, CS2
CS3, CS4,
AD620
W prog. gain, see datasheet, for 5.6 k a
W gain of 1 at 50 is achieved together
W ^{with RD1 and RD2.}
450
100 nF
100 nF
Rev. A3: 23.08.1995
9 (11)