AFE7799IABJ Quad-channel RF transceiver tare da hanyoyin amsa dual 400-FCBGA -40 zuwa 85

AFE7799 babban aiki ne, mai karɓar tashoshi da yawa, yana haɗa sarƙoƙi huɗu masu juyawa kai tsaye, sarƙoƙi mai jujjuya ƙasa huɗu, da samfurin RF mai faɗi guda biyu na digitizing sarƙoƙi (hanyoyin amsawa). Babban kewayo mai ƙarfi na mai watsawa da sarƙoƙi mai karɓa yana ba da damar samarwa da karɓar siginar 2G, 3G, 4G, da 5G don tashoshin tushe mara waya. Ƙarƙashin ƙarancin wutar lantarki da haɗin haɗin manyan tashoshi yana sa AFE7799 ya dace don magance iko da girman da aka ƙuntata 4G da 5G manyan tashoshin MIMO. Hanya mai faɗi da babbar hanyar amsawa ta kewayo na iya taimaka wa dijital pre-hargitsi (DPD) na amplifiers ikon a cikin sarkar watsawa. Gudun SerDes mai sauri zai iya taimakawa rage adadin hanyoyin da ake buƙata don canja wurin bayanai a ciki da waje.

Kowane sarkar mai karɓa na AFE7799 ya haɗa da kewayon 28-dB dijital mataki attenuator (DSA), biye da wani wideband m IQ demodulator, da baseband amplifier tare da hadedde shirye-shirye antialiasing low pass filters, tuki a ci gaba-lokaci sigma-delta ADC. Sarkar RX na iya karɓar bandwidth nan take (IBW) har zuwa 200 MHz. Kowace tashar mai karɓa tana da na'urorin gano wuta kololuwar analog guda biyu da na'urorin gano wutar lantarki daban-daban don taimakawa na waje ko na ciki mai sarrafa kansa na AGC don tashoshi mai karɓa, da kuma na'urar ganowa ta RF don amincin amincin na'urar. Haɗe-haɗen QMC (rashin daidaiton quadrature mismatch) algorithm yana da ikon ci gaba da saka idanu da daidaita daidaitaccen sarkar rx I da Q ba tare da buƙatar allurar kowane takamaiman sigina ko yin daidaitawa ta layi ba.

Kowace sarkar mai watsawa ta haɗa da 14-bit guda biyu, 3-Gsps IQ DACs, sannan na'urar sake gina shirye-shirye da kuma tace hoton DAC, mai sarrafa IQ.
tuƙi amplifier RF mai faɗi tare da kewayon 39-dB samun iko. Sarkar TX hadedde QMC da LO leakage algorithms, yin amfani da hanyar FB na iya ci gaba da bin diddigi da gyara ga rashin daidaituwar sarkar TX IQ da yoyon LO.