Optimizing Signal Integrity and Efficiency

In Bluetooth wearable applications, inductors are primarily utilized within RF matching networks and signal processing circuits. Their high self-resonant frequency (SRF) allows them to operate efficiently at the 2.4 GHz frequency band used by Bluetooth, ensuring stable communication between the wearable and a paired smartphone. By providing low DC resistance and high-quality factor (Q) values, the CE1005Q series minimizes power loss, which is essential for extending the battery life of portable devices.

The Bourns CE1005Q series multilayer chip inductors serve as critical high-frequency components in the design of modern Bluetooth-enabled wearable devices. These miniature inductors are engineered to meet the stringent space and performance requirements of compact electronics like smartwatches and fitness trackers. Built using advanced monolithic construction and a nickel barrier, the CE1005Q series offers high reliability and excellent magnetic shielding, which is vital for maintaining signal integrity in dense circuit layouts.

Furthermore, the magnetically shielded design of these inductors effectively suppresses electromagnetic interference (EMI) and low radiation. This shielding prevents signal degradation and cross-talk between the sensitive RF antenna and other internal components. As wearables continue to shrink, the 0402-size footprint of the CE1005Q series enables designers to achieve maximum functionality within a minimal board area, ultimately supporting the development of sleeker, more robust wearable technology.

Bourns CE1005Q series multilayer chip inductors serve as critical high-frequency components in the design of modern Bluetooth-enabled wearable devices. These miniature inductors are engineered to meet the stringent space and performance requirements of compact electronics like smart watches and fitness trackers. 

Features 

• Miniature Footprint: Housed in an ultra-compact 0402 case size (1.0 x 0.5 x 0.5 mm), ideal for high-density, space-constrained designs like wearable devices.
• High-Frequency Performance: Features a high Self-Resonant Frequency (SRF) and high Quality Factor (Q value), making them well-suited for RF signal processing and high-frequency communication modules.
• Advanced Monolithic Construction: Built with a ceramic-based monolithic structure and a nickel barrier termination, ensuring high mechanical reliability and stable electrical characteristics.
• Magnetic Shielding: The series is magnetically shielded, which provides low radiation and prevents electromagnetic interference (EMI) between internal components.
• Energy Efficiency: Designed with low DC resistance to minimize power loss, which is essential for extending battery life in portable electronics.
• Automotive Grade Quality: As part of the "Q" series, these inductors are AEC-Q200 compliant, indicating they are tested for high reliability and durability in demanding environments.

Application 

• RF Matching Networks: Ensuring maximum power transfer and impedance matching between the Bluetooth chipset and the antenna in smartwatches and fitness trackers.
• Signal Processing: Filtering high-frequency noise in communication modules to maintain clear, stable Bluetooth connections (2.4 GHz band).
• Power Management (PMIC): Decoupling and filtering in ultra-thin wearable power circuits to protect sensitive ICs from ripple and noise.
• Smartwatches & Fitness Trackers: Used in the compact internal circuitry where EMI suppression is critical to prevent interference between the RF signal and internal biosensors (e.g., heart rate or SpO2 monitors).
• Wireless Earbuds: Fitting into the extremely limited PCB space of TWS (True Wireless Stereo) devices for signal conditioning.

Key Components 

CE1005Q Series (0.3-12nH)

Benefits

• Exceptional Signal Clarity
• Extended Battery Life: With low DC resistance, the CE1005Q series minimizes power dissipation.
• Minimized Interference 
• Ultra-Compact Design
• High Reliability

Video

https://www.youtube.com/watch?v=TadzYlMMwfs&t=25s

Block Diagram