A simple delta sigma converter using XSPICE
according to
Schreier, Temes: Understanding Delta-Sigma Data Converters, 2005
Fig. 2.13, p. 31; Fig. 2.27, p.58
delta-sigma-1.cir
converter complete, tested against sine input
mod1-ct.cir
first order modulator
consists of analog continuous time integrator and
digitally latched comparator
count-latch-dac.cir
contains subcircuits of
10 bit digital latch
10 bit counter, non-revolving, saturating
simple 10 bit DAC with analog B source
mod1-ct-test.cir
test of modulator with sine input, shows noise shaping 20dB/decade
counter-test.cir
simple test with reset
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