對(dui)于音(yin)(yin)頻(pin)數(shu)據傳(chuan)輸，芯片采用高(gao)級加密標(biao)準（AES）等對(dui)稱加密算法(fa)對(dui)音(yin)(yin)頻(pin)數(shu)據進(jin)(jin)行(xing)加密。AES 是一種被(bei)普遍認可(ke)的強度高(gao)的加密算法(fa)，能(neng)夠對(dui)數(shu)據進(jin)(jin)行(xing)可(ke)靠(kao)加密，即使音(yin)(yin)頻(pin)數(shu)據在(zai)傳(chuan)輸過程(cheng)中被(bei)截(jie)獲，沒有(you)正確密鑰也無(wu)法(fa)解凱。同(tong)時，芯片還支(zhi)持(chi)(chi)**簡(jian)單配(pei)對(dui)（SSP）功能(neng)，簡(jian)化(hua)設(she)備(bei)(bei)配(pei)對(dui)過程(cheng)的同(tong)時，提高(gao)配(pei)對(dui)的**性。例(li)如，在(zai)使用數(shu)字比較方式(shi)進(jin)(jin)行(xing)配(pei)對(dui)時，設(she)備(bei)(bei)會顯示一個隨機數(shu)字，用戶需要在(zai)兩個設(she)備(bei)(bei)上(shang)確認該數(shu)字一致(zhi)，才能(neng)完成(cheng)配(pei)對(dui)，這種方式(shi)有(you)效防(fang)止了非(fei)法(fa)設(she)備(bei)(bei)的接入。杰理(li) JL7083F 藍牙音(yin)(yin)頻(pin) SoC，支(zhi)持(chi)(chi)雙模藍牙 5.4 與多種音(yin)(yin)頻(pin)編解碼器。四川音(yin)(yin)響(xiang)芯片ATS2817

    隨著(zhu)便攜式藍(lan)(lan)牙(ya)(ya)音(yin)響(xiang)(xiang)的(de)(de)(de)普及，對藍(lan)(lan)牙(ya)(ya)音(yin)響(xiang)(xiang)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)的(de)(de)(de)低功(gong)耗(hao)要(yao)求(qiu)越來越高(gao)(gao)(gao)。低功(gong)耗(hao)設(she)計(ji)既能(neng)夠延長(chang)音(yin)響(xiang)(xiang)的(de)(de)(de)續(xu)航時(shi)(shi)間，還(huan)能(neng)降(jiang)(jiang)低設(she)備(bei)發(fa)熱，提(ti)(ti)高(gao)(gao)(gao)使用(yong)的(de)(de)(de)穩定性(xing)和**性(xing)。藍(lan)(lan)牙(ya)(ya)音(yin)響(xiang)(xiang)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)在低功(gong)耗(hao)設(she)計(ji)方(fang)面采(cai)(cai)用(yong)了多種策略。首先(xian)，在芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)架構(gou)上進行(xing)優化(hua)(hua)，采(cai)(cai)用(yong)更(geng)先(xian)進的(de)(de)(de)制程(cheng)工(gong)藝，如 5nm、7nm 制程(cheng)，減(jian)少(shao)(shao)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)內(nei)部的(de)(de)(de)晶(jing)體(ti)管尺寸，降(jiang)(jiang)低芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)的(de)(de)(de)功(gong)耗(hao)。同時(shi)(shi)，優化(hua)(hua)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)的(de)(de)(de)電(dian)(dian)路設(she)計(ji)，采(cai)(cai)用(yong)動(dong)(dong)態電(dian)(dian)壓(ya)頻(pin)率(lv)(lv)調整（DVFS）技(ji)術(shu)，根據芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)的(de)(de)(de)工(gong)作負(fu)載動(dong)(dong)態調整供電(dian)(dian)電(dian)(dian)壓(ya)和工(gong)作頻(pin)率(lv)(lv)。當芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)處于(yu)輕負(fu)載狀態時(shi)(shi)，降(jiang)(jiang)低電(dian)(dian)壓(ya)和頻(pin)率(lv)(lv)，減(jian)少(shao)(shao)功(gong)耗(hao)；當需(xu)(xu)要(yao)處理(li)大量音(yin)頻(pin)數據時(shi)(shi)，提(ti)(ti)高(gao)(gao)(gao)電(dian)(dian)壓(ya)和頻(pin)率(lv)(lv)，保(bao)證芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)性(xing)能(neng)。其次，在藍(lan)(lan)牙(ya)(ya)連(lian)(lian)接(jie)方(fang)面，芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)采(cai)(cai)用(yong)低功(gong)耗(hao)藍(lan)(lan)牙(ya)(ya)（BLE）技(ji)術(shu)。BLE 技(ji)術(shu)相(xiang)比傳(chuan)統藍(lan)(lan)牙(ya)(ya)，具有更(geng)低的(de)(de)(de)功(gong)耗(hao)，適合用(yong)于(yu)音(yin)響(xiang)(xiang)的(de)(de)(de)待(dai)機和連(lian)(lian)接(jie)狀態。例如，在音(yin)響(xiang)(xiang)待(dai)機時(shi)(shi)，芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)可(ke)以(yi)切(qie)換到 BLE 模(mo)式，只(zhi)保(bao)持較低限度的(de)(de)(de)通(tong)信，以(yi)檢測是否有設(she)備(bei)連(lian)(lian)接(jie)請求(qiu)，從(cong)而降(jiang)(jiang)低功(gong)耗(hao)。此外，芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)還(huan)會對音(yin)頻(pin)處理(li)模(mo)塊進行(xing)優化(hua)(hua)，采(cai)(cai)用(yong)高(gao)(gao)(gao)效的(de)(de)(de)音(yin)頻(pin)編(bian)解碼算法，減(jian)少(shao)(shao)音(yin)頻(pin)處理(li)過程(cheng)中的(de)(de)(de)功(gong)耗(hao)。通(tong)過這些(xie)低功(gong)耗(hao)設(she)計(ji)，藍(lan)(lan)牙(ya)(ya)音(yin)響(xiang)(xiang)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)能(neng)夠在保(bao)證音(yin)質和性(xing)能(neng)的(de)(de)(de)前(qian)提(ti)(ti)下，明顯(xian)延長(chang)音(yin)響(xiang)(xiang)的(de)(de)(de)續(xu)航時(shi)(shi)間，滿足用(yong)戶長(chang)時(shi)(shi)間使用(yong)的(de)(de)(de)需(xu)(xu)求(qiu)。海南藍(lan)(lan)牙(ya)(ya)芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)ATS3085L中科藍(lan)(lan)訊芯(xin)(xin)(xin)(xin)(xin)(xin)片(pian)(pian)(pian)采(cai)(cai)用(yong)自研智能(neng)電(dian)(dian)源管理(li)技(ji)術(shu)，降(jiang)(jiang)低整體(ti)功(gong)耗(hao)。

    D 類(lei)功(gong)(gong)放芯(xin)片(pian)作(zuo)為當(dang)前主(zhu)流的數字功(gong)(gong)放類(lei)型，憑(ping)借明顯的技術優(you)(you)(you)勢(shi)占據大量市場份額。其主(zhu)要(yao)優(you)(you)(you)勢(shi)在(zai)于高(gao)效(xiao)率(lv)，通(tong)(tong)過脈(mo)沖(chong)寬度調(diao)制（PWM）技術，將音(yin)頻信(xin)號轉化(hua)為高(gao)頻脈(mo)沖(chong)信(xin)號，只在(zai)脈(mo)沖(chong)導通(tong)(tong)時消耗電(dian)能，因此效(xiao)率(lv)可(ke)(ke)達 80%-95%，遠高(gao)于 AB 類(lei)功(gong)(gong)放。這使得 D 類(lei)功(gong)(gong)放芯(xin)片(pian)發(fa)(fa)熱(re)量大幅降低(di)，無(wu)需復雜的散熱(re)結構，特別適(shi)合(he)便攜式設(she)備(bei)，如(ru)(ru)無(wu)線耳機、藍牙(ya)音(yin)箱，能有(you)效(xiao)延長設(she)備(bei)續航時間。同時，D 類(lei)功(gong)(gong)放芯(xin)片(pian)體積(ji)小(xiao)巧(qiao)，可(ke)(ke)集成更多功(gong)(gong)能模(mo)塊，如(ru)(ru)音(yin)量控制、音(yin)效(xiao)調(diao)節等，簡化(hua)設(she)備(bei)設(she)計。但 D 類(lei)功(gong)(gong)放也存在(zai)發(fa)(fa)展瓶頸，高(gao)頻脈(mo)沖(chong)信(xin)號易(yi)產生電(dian)磁干擾，可(ke)(ke)能影響周邊(bian)電(dian)子元件的正常工(gong)作(zuo)，需額外增(zeng)加濾波電(dian)路；此外，在(zai)處理低(di)頻率(lv)信(xin)號時，若(ruo) PWM 調(diao)制精(jing)度不足(zu)，可(ke)(ke)能出(chu)現失(shi)真，影響低(di)音(yin)表(biao)現。近年來，廠商通(tong)(tong)過優(you)(you)(you)化(hua)調(diao)制算(suan)法、采用先進的芯(xin)片(pian)制造工(gong)藝（如(ru)(ru) 7nm 工(gong)藝），逐步緩解了這些(xie)問(wen)題，讓 D 類(lei)功(gong)(gong)放的音(yin)質(zhi)逼近 AB 類(lei)功(gong)(gong)放水平。

    工(gong)(gong)業(ye)物聯(lian)網(wang)(wang)（IIoT）場景（如(ru)智能(neng)(neng)工(gong)(gong)廠、設(she)(she)備(bei)(bei)(bei)監控、物流追蹤）對藍(lan)(lan)(lan)牙(ya)(ya)芯(xin)片(pian)的(de)(de)高(gao)可(ke)靠性(xing)、廣覆蓋性(xing)、抗(kang)惡劣環境(jing)(jing)能(neng)(neng)力(li)提(ti)出(chu)特殊要(yao)求，推動芯(xin)片(pian)技術(shu)向工(gong)(gong)業(ye)級標(biao)準升(sheng)級。首先，工(gong)(gong)業(ye)環境(jing)(jing)中存在強電(dian)磁干擾、粉塵、濕度(du)大等問題，工(gong)(gong)業(ye)級藍(lan)(lan)(lan)牙(ya)(ya)芯(xin)片(pian)需(xu)(xu)具(ju)備(bei)(bei)(bei)高(gao)電(dian)磁兼容性(xing)（EMC），通(tong)過(guo)優(you)化(hua)電(dian)路設(she)(she)計(ji)與(yu)(yu)(yu)封裝(zhuang)工(gong)(gong)藝（如(ru) IP67 防護(hu)等級封裝(zhuang)），確(que)保在惡劣環境(jing)(jing)中穩(wen)(wen)定(ding)工(gong)(gong)作(zuo)；同(tong)時(shi)(shi)采用寬(kuan)電(dian)壓供(gong)電(dian)設(she)(she)計(ji)（如(ru) 3.3V-24V），適應工(gong)(gong)業(ye)設(she)(she)備(bei)(bei)(bei)的(de)(de)供(gong)電(dian)需(xu)(xu)求。其次，工(gong)(gong)業(ye)物聯(lian)網(wang)(wang)需(xu)(xu)實(shi)(shi)現大規模設(she)(she)備(bei)(bei)(bei)組網(wang)(wang)，藍(lan)(lan)(lan)牙(ya)(ya)芯(xin)片(pian)支持(chi)的(de)(de) Mesh 組網(wang)(wang)技術(shu)可(ke)連(lian)接數(shu)千個節點，且具(ju)備(bei)(bei)(bei)自修(xiu)復、自組網(wang)(wang)能(neng)(neng)力(li)，滿足智能(neng)(neng)工(gong)(gong)廠中傳感(gan)器、控制器、執行(xing)(xing)器的(de)(de)互(hu)聯(lian)需(xu)(xu)求，如(ru)通(tong)過(guo)藍(lan)(lan)(lan)牙(ya)(ya) Mesh 網(wang)(wang)絡實(shi)(shi)時(shi)(shi)傳輸(shu)設(she)(she)備(bei)(bei)(bei)運(yun)行(xing)(xing)數(shu)據（如(ru)溫度(du)、壓力(li)、轉速），實(shi)(shi)現設(she)(she)備(bei)(bei)(bei)狀態(tai)監控與(yu)(yu)(yu)故障預警。此外，工(gong)(gong)業(ye)級藍(lan)(lan)(lan)牙(ya)(ya)芯(xin)片(pian)需(xu)(xu)具(ju)備(bei)(bei)(bei)高(gao)穩(wen)(wen)定(ding)性(xing)與(yu)(yu)(yu)長壽命，平均無故障工(gong)(gong)作(zuo)時(shi)(shi)間(jian)（MTBF）需(xu)(xu)達(da)到 50 萬小(xiao)時(shi)(shi)以上，同(tong)時(shi)(shi)支持(chi)遠程(cheng)(cheng)固件升(sheng)級（OTA），無需(xu)(xu)拆(chai)卸設(she)(she)備(bei)(bei)(bei)即可(ke)更(geng)新芯(xin)片(pian)程(cheng)(cheng)序，降低維護(hu)成(cheng)本。在物流追蹤場景中，藍(lan)(lan)(lan)牙(ya)(ya)芯(xin)片(pian)還可(ke)集成(cheng)定(ding)位(wei)功(gong)能(neng)(neng)，通(tong)過(guo)與(yu)(yu)(yu)藍(lan)(lan)(lan)牙(ya)(ya)信標(biao)配(pei)合，實(shi)(shi)現貨物實(shi)(shi)時(shi)(shi)定(ding)位(wei)與(yu)(yu)(yu)軌跡記錄，提(ti)升(sheng)物流管理效(xiao)率。藍(lan)(lan)(lan)牙(ya)(ya)音(yin)響芯(xin)片(pian)通(tong)過(guo)優(you)化(hua)算法，提(ti)升(sheng)低音(yin)效(xiao)果，增強音(yin)樂(le)節奏感(gan)。

ATS2888通過(guo)AEC-Q100 Grade 2認證，適用于車(che)載(zai)信息娛樂系統。其支(zhi)(zhi)持CAN FD總線接口，可(ke)與(yu)(yu)(yu)(yu)車(che)輛(liang)ECU實(shi)時(shi)通信。芯(xin)片(pian)內置音頻(pin)均衡器(qi)(qi)與(yu)(yu)(yu)(yu)聲場定(ding)位算法，可(ke)優化(hua)車(che)內音響(xiang)效果。通過(guo)藍(lan)牙(ya)5.3協(xie)議，ATS2888可(ke)實(shi)現(xian)手機與(yu)(yu)(yu)(yu)車(che)機的(de)(de)無縫(feng)連(lian)接，支(zhi)(zhi)持無線CarPlay與(yu)(yu)(yu)(yu)Android Auto。在緊急呼叫場景(jing)中，芯(xin)片(pian)可(ke)自動觸發(fa)eCall功(gong)能(neng)，確(que)保行車(che)**。ATS2888提(ti)供完整(zheng)的(de)(de)SDK開(kai)發(fa)工(gong)具鏈，支(zhi)(zhi)持C/C++與(yu)(yu)(yu)(yu)Python編程。廠商可(ke)基于芯(xin)片(pian)開(kai)發(fa)定(ding)制化(hua)固件，通過(guo)OTA升級實(shi)現(xian)功(gong)能(neng)迭代。芯(xin)片(pian)兼容主(zhu)流(liu)RTOS操作系統，如FreeRTOS、Zephyr。未來，ATS2888將集成AI加速器(qi)(qi)，支(zhi)(zhi)持本地(di)化(hua)語音識別與(yu)(yu)(yu)(yu)圖像處理，進(jin)一步拓展智能(neng)家居、機器(qi)(qi)人(ren)等(deng)領域(yu)的(de)(de)應用場景(jing)。其開(kai)放架構與(yu)(yu)(yu)(yu)低功(gong)耗特性，使其成為物聯網(wang)終端設備的(de)(de)理想選擇。ATS2835P2芯(xin)片(pian)兼容SBC、AAC、LC3plus等(deng)主(zhu)流(liu)編解碼格式(shi)，并支(zhi)(zhi)持全格式(shi)本地(di)音頻(pin)解碼。陜西(xi)藍(lan)牙(ya)音響(xiang)芯(xin)片(pian)ATS2817

12S數字功放芯片動態(tai)低(di)頻截止技(ji)術根據(ju)揚聲器F0參數自動調整濾波斜率，保護低(di)音(yin)單元不過載(zai)。四川音(yin)響芯片ATS2817

ATS2888搭載336MHz RISC-32 CPU處(chu)(chu)理器**與(yu)(yu)(yu)504MHz CEVA TL421 DSP**，這種雙核架構(gou)賦予其并行(xing)(xing)處(chu)(chu)理復(fu)雜(za)任務的(de)(de)(de)能(neng)力，能(neng)快速響應邊緣(yuan)端(duan)的(de)(de)(de)數(shu)據(ju)(ju)(ju)(ju)處(chu)(chu)理需求。在(zai)物聯網邊緣(yuan)計算(suan)場(chang)景中(zhong)，可(ke)高(gao)效(xiao)處(chu)(chu)理來自各類(lei)傳(chuan)感器的(de)(de)(de)數(shu)據(ju)(ju)(ju)(ju)，進行(xing)(xing)實(shi)時(shi)分析和決策。支持藍(lan)(lan)牙6.0雙模(mo)，可(ke)同(tong)時(shi)運行(xing)(xing)經典藍(lan)(lan)牙與(yu)(yu)(yu)低功耗(hao)藍(lan)(lan)牙，方便與(yu)(yu)(yu)各類(lei)物聯網設(she)備(bei)(bei)連(lian)接(jie)(jie)，實(shi)現數(shu)據(ju)(ju)(ju)(ju)的(de)(de)(de)高(gao)效(xiao)傳(chuan)輸。無(wu)論是智(zhi)能(neng)穿戴(dai)設(she)備(bei)(bei)、智(zhi)能(neng)家(jia)居設(she)備(bei)(bei)還是工業傳(chuan)感器，都能(neng)通過藍(lan)(lan)牙與(yu)(yu)(yu)ATS2888建立穩定連(lian)接(jie)(jie)，實(shi)現數(shu)據(ju)(ju)(ju)(ju)的(de)(de)(de)快速交互。支持低功耗(hao)模(mo)式，在(zai)邊緣(yuan)設(she)備(bei)(bei)長時(shi)間(jian)運行(xing)(xing)時(shi)能(neng)有效(xiao)降低能(neng)耗(hao)，延長設(she)備(bei)(bei)續航(hang)時(shi)間(jian)。對于依(yi)賴電池(chi)供電的(de)(de)(de)物聯網設(she)備(bei)(bei)，如智(zhi)能(neng)傳(chuan)感器、便攜式監測(ce)設(she)備(bei)(bei)等(deng)，低功耗(hao)特性至關重要，可(ke)減少電池(chi)更換(huan)頻率，降低維護成(cheng)本。內置多種音(yin)頻處(chu)(chu)理算(suan)法與(yu)(yu)(yu)豐富的(de)(de)(de)接(jie)(jie)口，能(neng)對采集到的(de)(de)(de)數(shu)據(ju)(ju)(ju)(ju)進行(xing)(xing)初步(bu)處(chu)(chu)理與(yu)(yu)(yu)分析。例(li)如在(zai)智(zhi)能(neng)安防(fang)場(chang)景中(zhong)，可(ke)對攝像頭采集的(de)(de)(de)視頻數(shu)據(ju)(ju)(ju)(ju)進行(xing)(xing)初步(bu)分析，提取關鍵信息(xi)，減少上傳(chuan)到云端(duan)的(de)(de)(de)數(shu)據(ju)(ju)(ju)(ju)量，降低帶寬壓力。物聯網邊緣(yuan)計算(suan)涉及大量敏感數(shu)據(ju)(ju)(ju)(ju)，ATS2888具備(bei)(bei)一定的(de)(de)(de)**保(bao)障(zhang)機制(zhi)，可(ke)對數(shu)據(ju)(ju)(ju)(ju)進行(xing)(xing)加密處(chu)(chu)理，確(que)保(bao)數(shu)據(ju)(ju)(ju)(ju)在(zai)傳(chuan)輸和存(cun)儲過程中(zhong)的(de)(de)(de)**性，防(fang)止數(shu)據(ju)(ju)(ju)(ju)泄露和惡意(yi)攻擊。四川音(yin)響芯片ATS2817