This is only possible with a high-precision 32,768 kHz system clock - a 32,768 kHz "Next Generation Oscillator" from PETERMANN-TECHNIK. Over 50% power can be saved in the application with a 32,768 kHz oscillator. Simply smart!
The 32,768 kHz "Next Generation Oscillators" from PETERMANN-TECHNIK (ULPO-RB1, -RB2 and ULPPO series) offer temperature stabilities from ±5ppm over -40/+85°C and are 36 times more accurate at ±5ppm over the temperature range of -40/+85°C than a 32,768 kHz quartz crystal. The micro-oscillators in the dimensions 1.5x0.8 and 2.0x1.2 mm are characterised by the industries best current consumption of <1.0µA@1.8VDC (750nA core).
The output amplitude, which can be adjusted to further reduce power consumption, and the very fast transient response are unique. Normally, a 32.768 kHz crystal is used to clock the sleep clock of a BL/BLE chip and a low power MCU. An ultra low power 32,768 kHz oscillator of the series mentioned above can clock both ICs simultaneously. By replacing both 32,768 kHz crystals with one oscillator, circuit board space and a great deal of money can be saved in many ways. In addition, the circuit with a 32,768 kHz ultra low power oscillator oscillates perfectly under all circumstances at any temperature. Because the 32,768 kHz ultra low power oscillators are 36 times more accurate than a 32,768 kHz quartz crystal above -40/+85 °C, they offer an extremely accurate system clock, so that the very power-consuming sleep to process to sleep sequence can be processed extremely quickly. In addition, the frequently performed wake-ups to synchronise the wearable with the receiver can be completely omitted due to the very high system accuracy. Measurements have shown that a wearable equipped with a 32,768 kHz ultra low power oscillator consumes over 50% less power than a wearable equipped with 32,768 kHz crystals. Simply because all the power-consuming wake-up and synchronisation processes can be saved due to the very high-precision 32,768 kHz ultra low power oscillator and thus an extremely short process sequence of the Hybernation Technology BL/BLE chip can take place.
PETERMANN-TECHNIK naturally has high performance low cost MHz crystals as a reference clock for the BL/BLE chip. Samples and series quantities are available from the PETERMANN-TECHNIK warehouse. If you want to rely on a highly innovative, extremely energy-saving technology, the specialists at PETERMANN-TECHNIK can advise you quickly and easily. Automotive solutions with ±40ppm absolute for the 32.768 kHz system clock and ±40ppm absolute for the MHz oscillators for clocking the BL/BLE chip are also available. The market success of wearables can be ensured by using 32,768 kHz oscillators, because today's modern customer demands smart technology for a green world!
Find out more now:
Silicon oscillators (like MEMS)
or
Silicon Oscillators Product Overview
Technical questions:
Phone: 0 81 91 / 30 53 95
E-mail: info(at)petermann-technik.de
