TS3A226AE
- Ground FET Switches (60mΩ typical)
- Autonomous Detection of Headset Types:
3-Poles or 4-Poles (with MIC on SLEEVE or RING2) - Microphone Line Switches
- Supports FM Signal Transmission Through the Ground FETs
- Reduction of Click/Pop Noise
- VDD Range: 2.6 V – 4.7 V
- THD (Mic): 0.002% Typical
- Low Current Consumption: 6.5-µA Typical
- ±8kV Contract Discharge (IEC 61000-4-2) ESD Performance on SLEEVE and RING2 Pins
The TS3A226AE is an audio headset switch that detects 3- or 4-pole 3.5mm accessories. For a 4-pole accessory with a microphone, the TS3A226AE also detects the MIC location and routes the microphone and ground signals automatically. The ground signal is routed through a pair of low-impedance ground FETs (60mΩ typical), resulting minimal impact on audio cross-talk performance. The autonomous detection feature allows end users to plug in accessories with different audio pole configurations into the mobile device and have them operate properly with no added software control and complexity. The ground FETs of the device are designed to allow FM signal pass-through, making it possible to use the ground line of the headset as an FM antenna in mobile audio application.
The TS3A226AE is packaged within a 1.2mm × 1.2mm WCSP package, making it suitable for use in mobile application.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | AUTONOMOUS AUDIO HEADSET SWITCH, TS3A226AE datasheet (Rev. A) | 2013/7/24 | |||
| 技術文章 | USB Type-C™ power: Should your next device have USB Type-C? | PDF | HTML | 2017/2/14 | |||
| 技術文章 | USB Type-C audio: Do I need to buy a new pair of headphones? | PDF | HTML | 2016/7/7 | |||
| 應用說明 | Support Selfie Sticks Using a TS3A227E Audio Jack Switch | 2016/3/4 |
設計與開發
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TS3A226AEEVM — 適用於自主音訊耳機開關的 TS3A226AE 評估模組
TS3A226AEEVM 是適用於德州儀器 (TI) 自動音訊耳機開關的評估模組 (EVM)。該 EVM 可針對 TS3A226AE 裝置提供基本功能評估，並提供週邊設備連接器，可將編解碼器的訊號連接至 MICP、TIP 及 RING1。
TS3A226AE 是音訊耳機開關裝置。此裝置會偵測是否有類比麥克風，並在音訊立體聲插孔中的不同連接器之間切換系統類比麥克風接腳。根據製造商而定，連接立體聲連接器的麥克風可以和接地連接交換。當 TS3A226AE 偵測到某個配置時，裝置會自動將麥克風線路連接到相應的接腳。
如果沒有麥克風可用，則不會連接編解碼器的 MIC 訊號，而音訊插孔的接地會透過低電阻 (...)
TIDA-00006 — 可偵測 3 孔或 4 孔 3.5mm 配件的耳機偵測開關
This reference design is for autonomous audio headset switch applications. Some audio headsets have integrated analog microphones. The GND and MIC connections on the audio jack connector may be swapped depending on the manufacturer. This design has the ability to detect the presence of an analog (...)
TIDA-03030 — 支援音訊配件的 USB Type-C™ 電源路徑保護參考設計
TIDA-03030 參考設計可為 USB Type-C™ 應用中的電源路徑提供穩固的保護解決方案。此設計利用 TPS25923 (eFuse) 和 CSD17571Q2（反向阻斷 FET），保護電源路徑免受過電壓、過電流、熱插拔和反向電流事件影響。系統解決方案不僅可以模擬下行埠 (DFP)，還能偵測上行埠 (UFP) 裝置的連接情況。TIDA-03030 參考設計也支援 USB Type-C 音訊配件的類比音訊。具備音訊配件功能的靈活 VBUS 保護，可在 20mm x 20mm 的四層單側解決方案中實現。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 9 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。