Chithunzi cha AD9957BSVZ IC DDS 1GHZ 14BIT 100TQFP

Kufotokozera

AD9957 imagwira ntchito ngati moduli ya I/Q yapadziko lonse lapansi komanso chosinthira chosinthika pamakina olumikizirana pomwe mtengo, kukula, kugwiritsa ntchito mphamvu ndi magwiridwe antchito ndizofunikira.AD9957 imaphatikiza liwiro lalikulu la Direct Digital Synthesizer (DDS), yogwira ntchito kwambiri, yothamanga kwambiri ya 14-bit digito to analog converter (DAC), mawotchi ochulukitsa mawotchi, zosefera za digito ndi ntchito zina za DSP pa chip chimodzi.Zimapereka kusinthika kwa band-up-conversion kwa kufalitsa kwa data mu mawaya kapena mawayilesi olumikizirana opanda zingwe.AD9957 ndi chopereka chachitatu m'banja la quadrature digital upconverters (QDUCs), lomwe limaphatikizapo AD9857 ndi AD9856.Imapereka phindu la magwiridwe antchito pakuthamanga, kugwiritsa ntchito mphamvu komanso magwiridwe antchito a spectral.Mosiyana ndi omwe adatsogolera, imathandiziranso njira yolowera ya 16-bit ya data ya band ya I/Q.Chipangizocho chitha kukonzedwa kuti chizigwira ntchito ngati gwero la sinusoidal yamtundu umodzi kapena ngati cholumikizira cha DAC.Magawo olowetsa a Reference Clock amaphatikiza kristalo oscillator, kulowetsa mwachangu kugawikana-ndi-awiri, ndi phokoso lochepa la PLL pakuchulutsa pafupipafupi koloko.