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The TS2A116E device is designed for use with advanced headset accessories where a special single-wire communication is used to identify the accessory and its remote control key presses. Communication with the host device is based on standard UART protocol to send and receive data, and it relies on the same microphone line used by the accessory. This special technique enables the customer to establish the proprietary headset solution; thus, differentiating itself from the rest of the market.
The TS2A116E device is pre-programmed with an accessory IDs (AID); combined with the special communication single-wire protocol, this device allows the phone to uniquely detect the accessory. The TS2A116E device also supports up to 3 remote control keys and utilizes similar single-wire communication to the host chip for any key press information. It is also backward compatible to support the traditional microphone play and pause key functions that do not employ the single-wire communication scheme.
The TS2A116E device is designed to operate from an external self-charged capacitor which replenishes its charge from the microphone bias voltage. No external power supply is required. The TS2A116E device is configured to operate using standard 38.4 kbps baud rate UART protocol. It consumes maximum operating current of <80 μA during single-wire transmission or during the idle state to minimize power consumption. The device is designed with an ultra thin 2.0 × 1.7 mm UQFN package.For all available packages, see the orderable addendum at the end of the data sheet.
|Part number||Order||Protocols||Configuration||Number of channels (#)||VCC (Min) (V)||VCC (Max) (V)||ICC (Max) (uA)||ESD HBM (Typ) (kV)||Operating temperature range (C)||Package size: mm2:W x L (PKG)||Package Group|
||Analog Audio||2:1 SPDT||3||1.7||3.6||90||2||-40 to 85||12UQFN: 3 mm2: 1.7 x 2 (UQFN | 12)||UQFN | 12|