3G Specs: QPSK Modulation
S/P
I/Q
Mapper
RRCfilter
RRCfilter
Interpolator
Interpolator
NCO
?
QPSK Modulator Representation
3G Specification
Nyquist filter:
Root Raised Cosine filter
? = 0.22
sampling rate: 3.84Mcps X 4
NCO
60 Mhz bandwidth for channel mapping
High SFDR
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