Innovative interface technology from ams significantly reduces mechanical design constraints of true wireless earbuds
Unique POW:COM technology, a two-pin power and communications connection between earbuds and cradle provides enhanced charging experience
ams (SIX: AMS), a leading world...
ams (SIX: AMS), a leading worldwide supplier of high performance sensor solutions, has introduced POW:COM, an innovative interface technology which enables POWER and COMMUNICATION between a true wireless earbud and a charging cradle over a two-wire connection. A true wireless earbud previously required as many as six pins to provide both power transfer and communication between the charging cradle and the earbud, compromising the mechanical design of a small form factor that fits comfortably in the user’s ear.
The ams POW:COM interface technology for the first time enables simultaneous data communication with 1kBit/s net data rate and over 150mA charging current supported, far more than applications need today.
The POW:COM interface is implemented with the AS3442 host IC in the cradle, and the AS3447 client IC in each earbud. The sophisticated POW:COM protocol developed by ams provides for power transfer at 5V, I2C communication, interrupt signals and up to five GPIOs via a single transmission line between each pair of AS3442 and AS3447 devices.
The communications capability provided by the POW:COM interface supports an enhanced user experience of the charging cradle. For instance, the earbud can request the battery information from the charger cradle and display it on a mobile app.
The POW:COM interface also allows the earbud manufacturer to implement other useful features, such as auto-recharge, automatic pairing of the earbuds with the user’s phone on opening the charging cradle’s case, and accessory firmware updating while charging.
“The POW:COM interface from ams radically reduces the constraints on the design of true wireless earbuds,” said Christian Feierl, Marketing Manager at ams. “If the earbud only needs to accommodate a two-pin connection to the cradle rather than six pins, the designer has much more flexibility to reduce the size of the earbud or to use the space on the surface of the earbud in a way which brings more value to the user.”
The AS3442 and AS3447 POW:COM devices are available now in production volumes. Some brand manufacturers have already included the ams POW:COM devices in their earbuds, with anticipated availability in December, in time for the holiday season.
An evaluation board for the POW:COM interface parts is available on ams online shop. For sample requests or for more technical information, go to www.ams.com/Power-Communication-Interface.
For more information send an inquiry directly to ams AG
How spectral sensors enable LED lighting systems to increase crop yields in vertical farming and greenhouses
Traditionally, agricultural settings have used high-pressure sodium (HPS) lamps as an artificial light source. LED manufacturers are introducing lighting with better and richer spectral characteristics that offer low power consumption, radiate little heat and operate over a longer span. This article discusses how sensor enable these LED solutions and the benefits of LED versus HPS.
Sensors Enable the Smart Home
Consumer acceptance and demand for “smart home” capabilities must be driven by the simplicity of use and perceived value those smart home services deliver. Real-time sensing is the critical touch-point behind delivering both simplicity and value, enabling the IoT’s “things” to deliver their service.
New small, low-power MOX VOC sensors: how might they be used for indoor air quality monitoring?
Stories in the news media are heightening people’s awareness of the importance of the quality of the air we breathe. The average human inhales about 15kg of air a day, 80% of it indoors. And while the quality of outdoor air is routinely monitored by public agencies, Indoor Air Quality (IAQ) monitoring is the responsibility of the building’s operator. A new generation of small, surface-mount, low-power VOC (volatile organic compound) gas sensors offering the potential for distributed, local IAQ monitoring by small and affordable devices. This article explains the operation of these new VOC sensors and the differences between them and absolute single-gas sensors. It also shows how they can provide data which enables air management equipment to respond most efficiently and effectively to variations in indoor air quality.