GUI for evaluation module (EVM)
TS3A227E
60-mΩ, 4.5-V, autonomous audio accessory detection & configuration switch with I2C
Data sheet
TS3A227E
- Supple Range of 2.5 V to 4.5 V
- Accessory Insertion/Removal Detection with
Adjustable De-bounce Timings - Accessory Configuration Detection:
- Stereo 3-pole Headphone
- 4-pole Standard Headset with MIC on Sleeve
- 4-pole OMTP Headset with MIC on Ring2
- Key Press Detection for Up to 4 Keys
- Ultra Low Ground FET RON of 60 mΩ
- Power Off Noise Removal
- Isolation of MICBIAS From Audio Jack to Remove
Click/Pop Noise - Integrated Codec Sense Line
- Manual I2C Control
- FM Transmission Capability
- Dual Small Package Options
- 16 Pin DSBGA
- 16 Pin QFN
The TS3A227E is an autonomous audio accessory detection and configuration switch that detects 3-pole or 4-pole audio accessories and configures internal switches to route the signals accordingly.
The internal ground FETS of the TS3A227E have an ultra-low RON of 60 mΩ to minimize crosstalk impact. The ground FETs are also designed to pass FM signals, making it possible to use the ground line of the accessory as an FM antenna in mobile audio applications.
Internal isolation switches allow the TS3A227E to remove the click/pop noise that can be generated during and insertion or removal of an audio accessory. In addition depletion FETs prevent a floating ground while the device is unpowered, removing the humming noise present when leaving accessories plugged into an unpowered system.
A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw when no headset is inserted.
The TS3A227E features integrated key press detection for detecting up to 4 keys with press and release support.
Manual I2C control allows the TS3A227E to adapt to application needs by providing control over de-bounce settings and switch states.
Technical documentation
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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TS3A227E Autonomous Audio Accessory Detection and Configuration Switch datasheet (Rev. B) | PDF | HTML | 05 Feb 2015 |
| Application note | Support Selfie Sticks Using a TS3A227E Audio Jack Switch | 04 Mar 2016 | ||
| EVM User's guide | TS3A227E-EVM User's Guide | 15 Dec 2014 | ||
| Application note | Preventing Excess Power Consumption on Analog Switches | 03 Jul 2008 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 08 Jul 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TS3A227E-EVM — TS3A227E evaluation module
The TS3A227E-EVM is an evaluation module for TI’s autonomous audio-accessory switch with adjustable debounce settings, ultralow RON ground FETs, depletion FETs, key-press detection and manual I2C control. The module lets you easily evaluate the device performance and functionality. (...)
User guide: PDF
Driver or library
TS3A227ESW-LINUX — Linux Driver for TS3A227E
The Linux driver supports the TS3A227E Autonomous Audio Accessory Detection and Configuration Switch. The Linux driver supports communication through the I2C bus and interfaces with the Linux Sound SoC Component framework.
Linux Mainline Status
Available in Linux Main line: Yes
Available through (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs
TIDA-00565 — USB Type-C Audio Adapter Accessory Mode Reference Design
The USB Type-C™ audio adapter accessory mode reference design provides the solution for transmitting analog audio through the USB Type-C interface. This reference design demonstrates how analog audio can be transmitted to system peripherals using the USB Type-C standard audio adapter (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFF) | 16 | Ultra Librarian |
| VQFN (RVA) | 16 | Ultra Librarian |
Ordering & quality
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Information included:
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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