MB54609 Datasheet, PDF (19/23 Pages) Fujitsu Component Limited. – Quadrature Modulator IC (With 1.0 GHz Up-converter)

s TEST CIRCUITS (Reference Examples)
• Test circuit 1
(for SSB measurement)
SG
(50 Ω)
SG
(50 Ω)
MB54609
VCC = 3.0 V
VBB*cos (2 π ft)
I
Synchronized
Q
VBB*sin (2 π ft)
VBB = 1.0 Vpp
f = 600 kHz
D.U.T
RFout
Spectrum analyzer (50 Ω)
VOS = 1.6 V VOS VOS VOS VOS
• Test circuit 2
(for modulation precision
measurement)
SG
(50 Ω)
SG
(50 Ω)
V CC = 3.0 V
I
Baseband
signal
generator
Q
D.U.T
RFout
Modulation precision
analyzer (50 Ω)
V OS = 1.6 V V OS V OS V OS V OS
(Continued)
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