The Always-On domain, over which the power islets emerge, requires a specific panoply of voltage regulators and clocks. The availability of extremely low power oscillators is therefore a must. In low power modes, low speed clocks are generally used. The qOSC-RC-LP-32k-co.01 - low frequency RC oscillator - is an excellent choice for application combining the needs of ultra-low power consumption and reduced BoM cost. It can also be suitably combined with a crystal oscillator in order to benefit at once from fast wake-up time of the RC oscillator and from accuracy of the crystal.
Key Benefits
- Low power consumption: support of low power and backup modes thanks to its 70 nA typical power consumption
- A cost-efficient solution: no external component is needed thanks to on-chip integrated capacitors, thus enabling to offer a low BoM solution for end-users and to minimize the PCB area
- Suitable for fast wake-up thanks to a startup time of 200 us, the RC oscillator allows SoCs reaching high performances of wake-up time
- Digital trimming: allows to compensate process errors in order to obtain the nominal frequency
Key Features
| PARAMETERS | CONDITION |
Minimum value
|
Typical value
|
Maximum value
|
|---|---|---|---|---|
|
Input Voltage
|
- | 0.495 V | 1.21 V |
Applications
- Smart Headset
- TWS Earpods
- Smart Speaker
- Voice Assistant
- Hearing aids
- Voice-controlled devices
- Bluetooth
- NB-IoT
- ULP MCU
- WiFi
- GNSS
- Cellular IoT
Key Performances
- Frequency accuracy: ±1.5%
- Frequency drift with temperature: ±12%
- Duty cycle: 50% ±10
Technical information
- Technology: TSMC 55 uLP eFlash