No. The types of phones that use our smart codecs are tremendously complicated from an audio and voice perspective, and the amount of circuitry dedicated to supporting the headphone jack is a relatively small percentage of such a device. These devices typically contain support for many microphone inputs, many channels of A/D and D/A conversion, sample rate conversion, clocking support, earpiece amplifier, some level of power management for the audio system itself, and a long list of advanced IP. This complexity is driven in part by the fact that there are a wide array of sources and destinations for audio and voice within a phone, some of which require signal processing to connect to one another, and when combined with the wide range of signal levels that must be comprehended, the resulting matrix of use cases is very large. The net of all this also drives higher performance requirements for the converters than one might expect, along with the associated signal processing.
Additionally, as the roughly 1.3 billion unit headphone market transitions to various digital interfaces, we see a significant opportunity for Cirrus Logic to provide interface circuitry, codecs, and headphone drivers into the digital headset market. As described in our most recent shareholder letter, we are very well positioned for this transition, with phenomenal products on the market today that enable the full range of digital headsets with various digital interfaces widely prevalent in the market - from flagship ANC headsets down to a basic analog headset replacement.
Of course, our boosted amplifier business is also a large and growing part of what we sell into handsets, and this is unrelated to headphones. In fact, we indicated in our most recent earnings material that we expect to exceed our long-term revenue growth target of 15% in FY17, with the growth this year being driven most significantly by amplifiers and headsets. We believe these vectors combined with our additional strategies to grow our business with handset OEMs 3-10, migrate content from flagships to the mid tier, and bring the technologies we’ve developed for handsets into new markets such as wearables, smart accessories, and the connected home position the company well for several years. Coupled with our longer-term investments such as microphones and voice biometrics, we are extremely excited about the outlook for the company.