Whakaahuatanga
Ko te AD7760 he mahi nui, 24-bit Σ-Δ analog-to-digital converter (ADC).Ka whakakotahihia e ia te whanui whanui whakauru me te tere tere me nga painga o te hurihanga Σ-Δ ki te whakatutuki i te mahinga o te 100 dB SNR i te 2.5 MSPS, he pai mo te hopu raraunga tere.Ko te awhe hihiri whanui me nga whakaritenga antialiasing kua whakahekehia te whakaiti i te mahi hoahoa.He parepare whakauru hei akiaki i te tohutoro, he whakahiato rereke mo te aukati tohu me te neke taumata, he haki nui, he whiwhinga o roto me nga rehita whakaheke, me te tātari FIR mamati iti-paahi ka hanga te AD7760 he taputapu hopu raraunga kiato, tino whakakotahi me te iti o te peripheral. kowhiringa waahanga.I tua atu, ka tukuna e te taputapu nga reiti whakahekenga ka taea, ka taea te whakatika i te tātari FIR mamati mena kaore nga ahuatanga taunoa e tika ana mo te tono.He pai te AD7760 mo nga tono e kii ana i te SNR teitei me te kore he hoahoa tukatuka tohu o mua.Ko te whakaurunga rereke ka whakatauirahia ki runga ki te 40 MSPS e tetahi modulator tairitenga.Ko te putanga modulator ka tukatukahia e te raupapa o nga whiriwhiringa iti, me te tātari whakamutunga he taunoa, he whakarea-kaiwhakamahi ranei.Ko te reiti tauira, nga iarere kokonga tātari, me te reeti kupu whakaputa ka whakatauhia e te huinga o te auau karaka o waho me nga rehita whirihoranga o te AD7760.Ko te ngaohiko tohutoro i tukuna ki te AD7760 ka whakatau i te awhe whakauru tairitenga.Ki te tohutoro 4 V, te awhe tāuru tairitenga ko ± 3.2 V pārōnaki rītaha huri noa i te aratau noa o 2 V. Ka taea te tutuki tenei rītaha aratau-noa mā te whakamahi i te tīwerawera pārōnaki i runga i te maramara, ka whakaheke ake i nga whakaritenga tohu tohu o waho.Te vai ra te AD7760 i roto i te hoe o tei faaitehia, 64-arata‘i TQFP e tei faataahia i nia i te faito veavea o te ohipa mai te −40°C e tae atu i te +85°C.
Whakatakotoranga: | |
Huanga | Uara |
Kāwai | Takiwa Whakakotahi (ICs) |
Te Raraunga Raraunga - Tauritenga ki nga Kaihuri Mamati (ADC) | |
Mfr | Analog Devices Inc. |
Rangatū | - |
Mōkī | Paepae |
Tūnga Wāhanga | Hohe |
Te maha o nga moka | 24 |
Reiti Tauira (Ia Hekona) | 2.5M |
Te maha o nga whakaurunga | 1 |
Momo Whakauru | Rerekētanga |
Atanga Raraunga | Whakarara |
Whirihoranga | ADC |
Owehenga - S/H:ADC | - |
Te maha o nga Kaihuri A/D | 1 |
Hangahanga | Sigma-Delta |
Momo Tohutoro | Waho |
Ngaohiko - Tuku, Analog | 2.5V, 3.15V ~ 5.25V |
Ngaohiko - Tuku, Mamati | 2.5V |
Ngā āhuatanga | - |
Te Waahi Mahi | -40°C ~ 85°C |
Mōkī / Take | 64-TQFP Papa Whakaaturanga |
Mōkī Pūrere Kaiwhakarato | 64-TQFP-EP (10x10) |
Momo Whakaeke | Maunga Mata |
Tau Hua turanga | AD7760 |