CRJ CERAMIC RESONATORS Description Dimensions • Ceramic resonators for the kHz band with external capacitors. • Applicable oscillating frequencies: 455kHz, 480kHz Features • Precise oscillating frequency without adjustment. • May be used with a variety of ICs. • Lead-free terminations Applications • Reference signal oscillators for – Microcomputers (household electronics, OA equipment). Remote controlling – TV's, VTR's, air-conditioners, CD players, lighting • Digital applications equipment including measuring instruments, communications equipment, toys, etc. Unit: mm Test Circuit Oscillating frequency test circuit STANDARD RESONATORS SELECTION GUIDE TYPE CRJ (CERASONATOR®) kHz Band TOKO Part Number DCRJ455A DCRJ480A Oscillating Frequency (Fosc)* (kHz) 455kHz±0.5% 480kHz±0.5% Resonance Impedance (Ω) 30 max. 30 max. Fosc Static Temp. Stability (–20°C~+80°C) ±0.3% ±0.3% External Capacitor C1 C2 (pF) (pF) 100 100 100 100 * Oscillating frequency tolerance can be designed narrower than Fosc±0.5%, but Fosc ±0.2%. TOKO performs matching evaluations for all types of ICs. Please contact TOKO regarding applicable products. The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. TOKO America, Inc. 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com August 2005 © 2005 TOKO America, Inc. All Rights Reserved Printed in USA CF-326-CRJ R-LOG0805A 1