The TDTSI017 Reference Design – Lightning Strikes & Tempo is there…

The TDTSI017 is Tempo’s LAM-based Apple® MFi-certified Headphone / HeadsetFemale 3.5mm Adapter reference design and demo board. The TDTSI017 is available to Apple MFi-licensees in good standing upon execution of a mutual NDA with Tempo Semiconductor. This highly unique solution is offered with and without integrated charging capability using either a female Lightning or USB connector… now offered both with and without FM / RDS digital tuner IC functionality!

Spend your resources fine-tuning your mechanical ID, not your microcontroller code

All Lightning-based versions of the design include our pre-programmed TSCT8x Audio Hub Controller which saves the OEM / ODM the agony of having to learn and then debug complex microcontroller coding or start from scratch using other vendors “example source code”.


Spend your energy focusing on product differentiation, not spinning PCB boards

Naturally, a schematic, BOM, and 4-layer PCB layout files (native and Gerbers) are made available to our customers (just like all other audio IC vendors do), HOWEVER, the design files that Tempo provides have been designed with RoHS, WEEE, CE, FCC and DfM compliance in mind, DRAMATICALLY reducing your Time to Market. Just because others might also have a “reference design” doesn’t mean it is ready to take to production.


Spend your time improving the acoustics, not coding DSPs

Tempo also offers a simple-to-use Windows®-based GUI (Tempo ASC) that enables the acoustical engineer to generate the design-specific DSP “tuning” files (*.PNL) for inclusion inside the TSCT8x firmware image. There is even an automatic function that generates the inverse EQ curve from a customer-provided target SPL curve that can be entered into the GUI in minutes. Obtaining a flat frequency response can then be realized within seconds. Obtaining the firmware that can be loaded into the end-product via the iOS app (residing inside the TSCT8x Flash memory), is made available within 24 hours of the PNL file being sent when submitted with a QF form.


Spend your money on your product launch campaign, not hiring an App Developer

The TempoSound iOS App delivers both NRE and Lifetime Support savings, not to mention halving your product development timeline!

The default functionality of the TempoSound iOS App enables mandatory firmware updating of the MFi-certified Lightning audio accessory product with firmware that is located in the cloud without incurring such outsourcing or internal engineering development overhead to the OEM / ODM.

Naturally, Tempo supports requests for OEM / ODM customization to this iOS app included as part of the value that our complete turn-key solution enables.

TempoSound iOS requirements? 9.0 or later.

Our Lightning headset solution iOS requirements? None.

Why settle for an “analog headset solution” that will only works on iOS 11 and leave so much of the market out in the cold? Who wants to listen to a product that sounds like every other product?

Ready to take your product to the next level?

The TempoMax iOS App (coming soon) enables a whole host of additional features that enable the OEM / ODM to enable a differentiated product that goes far beyond what other solutions offer today, including “personalization” which enables the consumer, after tuning the product to suit their personal preferences to simply “set and forget” the configuration which is stored in flash memory inside the product. There is no need for the app to be installed on any other Lightning-enabled device in order for the consumer to enjoy the exact same customized experience on any Lightning enabled iOS device, regardless of the iOS version!

Why settle for 3 boring EQ presets that only work on iOS 10 or later?

Hand over the power of a customizable 12-band graphic EQ or even fully user-configurable 12-band parametric EQ to your customer and watch your product sales numbers soar above the sound of the rest!


Enable the consumer to “breath new life” into older Lightning-enable iOS devices with meaningful product differentiation!

Bring the power of even more differentiated audio processing features to your customer base, to help them get the most out of their entertainment experience, regardless of what they choose to listen to or watch on their iOS device. Don’t settle for a product that only enables the EQ to work when the iOS App is running in the foreground or background.

With the Tempo TDTSI017 reference design, the OEM / ODM is once again free to focus on simply making a high-quality, highly differentiated mobile audio accessory product, all without their having to learn a single line of DSP code, debug microcontroller code, master Swift 3 or Object C code or retain an iOS App Developer, learn how to setup a cloud-based server, or how to develop, certify and maintain an iOS App for the entire product life-cycle of your Lightning Audio Accessory.

Please contact if you are interested in obtaining the TDTSI017 (Rev E) reference design files, evaluating the TDTSI017 (Rev E) demo board, experimenting with the ASC Tool, or even experiencing how simple it is to realize AUDIBLE product differentiation within minutes with the TempoSound iOS tool.


Have you wished for years you could take your FM radio wherever you brought your Lightning enabled device? Stop waiting! Now you can!

Leverage the very wires that are delivering, the highest quality, lossless audio to your ears and turn them into a near perfect antenna just by adding the Silicons Labs Si4705 FM / RDS tuner. Want to get to market quickly with an innovative product like this but don’t have the necessary engineering resources? Come talk to Tempo and learn more about what we can do for you!

Are you a consumer looking to purchase an end-product that already has functionality just like what is described here?

You’re in luck!

Starting, April 5th, 2018, a brand new brand in premium audio and IoT solutions, Blackloud, are taking pre-orders for the AF1 on their website as well as at the NAB Show 2018! During the month of April, they are also discounted $20 off the recommended retail price (RRP)!