Apple's new iPhone 7 and iPhone 7 Plus do not feature a 3.5mm headset jack, and yes, that's annoying many people out there. After all, your home speakers, car stereo, headphones, and so on all seem to rely on it.
However, Apple is not leaving you without a way to connect to those systems: the company provides a handy adapter free in the box with every iPhone that connects to the Lightning port on one end and provides an outlet to a 3.5mm jack on the other. If you lose it, you can buy a new one for $9, the cheapest for an Apple adapter.
There's a lot of circuitry inside this for a simple adapter
All of this suggests that there might not be much to that adapter. However, recently released X-Ray images of it, reveal quite the opposite. A lot of the space right below the actual connecting pins is occupied by an integrated circuit, a chip that obviously is tasked with some important feature.
Officially, there's no explanation by Apple as to what it does, but the most obvious guess is that it contains a digital-to-analog converter, or a DAC, in addition to an amplifier and an analog-to-digital converter. That is needed because Apple's Lightning connector is digital, while headphones require an analog signal. It's the DAC that makes that conversion.
Interestingly, additional testing revealed that while that new DAC inside the adapter delivers a slightly worse audio quality than the built-in solution before, the difference might not even be audible to most people. With this, a lot of the mysterious around the curious adapter are finally unraveled.
Victor, a seasoned mobile technology expert, has spent over a decade at PhoneArena, exploring the depths of mobile photography and reviewing hundreds of smartphones across Android and iOS ecosystems. His passion for technology, coupled with his extensive knowledge of smartphone cameras and battery life, has positioned him as a leading voice in the mobile tech industry.
Recommended Stories
Loading Comments...
COMMENT
All comments need to comply with our
Community Guidelines
Phonearena comments rules
A discussion is a place, where people can voice their opinion, no matter if it
is positive, neutral or negative. However, when posting, one must stay true to the topic, and not just share some
random thoughts, which are not directly related to the matter.
Things that are NOT allowed:
Off-topic talk - you must stick to the subject of discussion
Offensive, hate speech - if you want to say something, say it politely
Spam/Advertisements - these posts are deleted
Multiple accounts - one person can have only one account
Impersonations and offensive nicknames - these accounts get banned
Moderation is done by humans. We try to be as objective as possible and moderate with zero bias. If you think a
post should be moderated - please, report it.
Have a question about the rules or why you have been moderated/limited/banned? Please,
contact us.
FCC OKs Cingular\'s purchase of AT&T Wireless
Things that are NOT allowed: