Lub luag hauj lwm ntawm tus modulator hauv kev sib txuas lus digital muaj cov ntsiab lus hauv qab no.
1. Lub luag hauj lwm ntawm cov modulator hauv cov kev sib txuas lus digital: hloov cov teeb liab digital zaus rau hauv cov teeb liab digital baseband.
2. Hloov cov teeb liab digital baseband rau hauv lub teeb liab analog zaus.
3. Hloov cov teeb liab digital zaus rau hauv lub teeb liab analog baseband.
4. Hloov cov teeb liab digital baseband rau hauv lub teeb liab digital zaus.
