iPhone 7附的耳機轉接頭試聽心得 - iOS

By Oliver
at 2016-09-18T02:23
at 2016-09-18T02:23
Table of Contents
以下是拆解報告中,我獨立條列出 Audio IC 的部分,可以看到 i7 的DAC 延續使用同 i6s
只有放大器Amp的IC是不同的...我想此變更主要就是為了支援應付雙喇叭,而非耳機孔
1. 音質:
* 影響音質的重要性: 音源(MP3, 無損) > 載體(耳機、喇叭) > DAC / Amp
在僅有Amp IC 變更的情況下,音質不可能提升多少
* 想藉由 MP3 + Earpods 來聽出音質的差異,不如換成 無損音樂 + 優質的 On Ear 耳機
2. Lightning Earpods / 3.5 mm adapter:
* 這兩個配件一定沒有內建 DAC + Amp,最好證明就是要搭配 iOS 10 才能運作
若有內建,那麼插在 iOS 9 應該也要能聽...(iOS 9 已有不少 MFi Lightning 耳機)
* Lightning 接頭也分很多種,有 充電 + Audio 或 充電 + 資料傳輸...
此兩配件應是搭載 充電 + Audio 的 Lightning 接頭,再搭配 iOS10,方能聽取類比訊號
3. 目的:
* 爭取整機設計空間,3.5mm耳機孔的確是佔了一定的體積
* 配件商機,AirPods、Beats藍芽耳機 + MFi認證 Lightning 高階耳機,都有助提升營收獲利
4. 結論:
* 為了讓音質變得更好,移除3.5mm,看來只是善意的謊言 (如果只是搭標配 Earpods)
* CES 可以看到更多更優的 Android版的 Airpods / Type C 高階耳機(內建 DAC)
iPhone 6s:
DAC Cirrus Logic 338S00105 *1
Amplifier Cirrus Logic 338S1285 *2
iPhone 7:
DAC Cirrus Logic 338S00105 *1
Amplifier Cirrus Logic 338S00220 *2
iPhone 6s 拆解報告:
https://www.ifixit.com/Teardown/iPhone+6s+Teardown/48170
iPhone 7 拆解報告:
https://www.ifixit.com/Teardown/iPhone+7+Teardown/67382
※ 引述《Harper34 (強打少年)》之銘言:
: ※ 引述《abian1012 (台灣之子)》之銘言:
: : 轉接頭有附 Cirrus 的DAC
: : 所以不只是單純轉接而已
: : 在DSP這方面有下了一些功夫
: : 但不知道下一代會不會附贈就是了
: 之前越南代工廠有流出照
: https://goo.gl/r6Gpty
: 另外chipwork拆解ip7 表面上是1顆DAC晶片+2顆音頻擴大晶片 實際上是3顆
: 他們推測兩顆推喇叭 一顆推lightning耳機
: https://goo.gl/pLD934
: 其實ip6s也發現有兩顆音頻擴大晶片 當初沒人清楚另一顆的作用
: airpods就塞了幾顆晶片、電量很小的電池及充電盒 就賣5490元
: earpods 3.5mm版 賣990元
: earpods lightning版 賣990元(加晶片不加價???)
: lightning 轉 3.5mm 賣350元 如果這真的 塞了DAC+音頻擴大
: 不只要從lightning輸出數位訊號 還要供電出來驅動那些晶片...
: idevices不用升級ios10原本就可以接lightning的DAC解碼耳擴
: 但lightning 轉 3.5mm 如越南流出照 越南人測試ip6s要升級ios10才能用
: 推測升級ios10應該是開啟lightning輸出類比訊號功能
--
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