MB54609 Datasheet, PDF (11/23 Pages) Fujitsu Component Limited. – Quadrature Modulator IC (With 1.0 GHz Up-converter)

MB54609
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• Modulation precision and output spectrum (test circuit 2)
@ Baseband signal: π/4 DQPSK, 42 kbps, 1.0 Vpp, PN 15, Root-Nyquist filter α = 0.5
Input signals: LO1 = 400 MHz, –15 dBm; LO2 = 750 MHz, –5 dBm
Output signal: RFout = 950 MHz
• Modulation precision
• Output spectrum
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RMS Vector Error = 1.927%
Peak Vector Error = 4.234%
RMS Magnitude Error = 1.290%
Peak Magnitude Error = 3.364%
RMS Phase Error = 0.821 degs
Peak Phase Error = –2.240 degs
Carrier Freq Offset = 8.561e+03 Hz
Carrier Phase Offset = 157.455 degs
Carrier Leak
= –32.429 dB
Bias Vector = ( 2.305, 0.634)%
Gravity Center = (–4.635, 10.356)%
VG: 5.000e-01 V / Div
Baseband Filter: RtNyq (0.5000) Rectangle Len = 64 OSR = 4.761905
CENTER = 950 MHz
SPAN = 200 kHz
RBW = 3 kHz VBW = 100 Hz SWP = 3 s
ATT = 10 dB
REF = 0 dBm 10 dB / div.
• Spectrum (test circuit 2)
@ Baseband signal: π/4 DQPSK, 42 kbps, 1.0 Vpp, 0000, Root-Nyquist filter α = 0.5
Input signals: LO1 = 400 MHz, –15 dBm; LO2 = 750 MHz, –5 dBm
Output signal: RFout = 950 MHz
• Span = 240 kHz
• Span = 700 MHz
CENTER = 950 MHz
SPAN = 26.2 kHz
RBW = 300 Hz VBW = 300 Hz SWP = 1.3 s
ATT = 10 dB
REF = 0 dBm 10 dB / div.
CENTER = 750 MHz
SPAN = 700 MHz
RBW = 1 MHz VBW = 3 kHz SWP = 1.1 s
ATT = 10 dB
REF = 10 dBm 10 dB / div.
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