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| Ceramic Resonators om .c ) kHz Band CRK TYPE CRK, CRA (CERASONATOR 4U et he CRA aS at CRA D .CRK w Description w w (R) TYPE CRK CRA 5.3 Max. 3.5 3.4 Max. 7.7 Max. 5 0.6 0.8 0.2 Max. 4.0Max. (Unit : mm) 0.6 1.0 0.6 0.9 2.5 2.5 6.5Max. 0.5 3.5 9.5Max. * Ceramic resonators using external capacitors/built-in capacitors for the kHz band designed and produced with application of Toko's experience relative to piezo materials, precision manufacturing and soldering technology. * Applicable oscillation frequency range CRK: 380 to 680kHz CRA: 455 to 500kHz * * Features * * * * Precise oscillating frequency without adjustment. CRK type is soldered ceramic element, and High reliability. May be used with a variety of ICs. Load capacitors (C1, C2) not required for CRA type. Applications * Reference signal oscillations for -- Microcomputers (household electronics, OA equipment) * Remote controlling -- TV's, VTRs, air-conditioners, CD players, lighting apparatus. * Digital applications equipment including measuring instruments, communications equipment, toys, etc. TYPE CRK TOKO Part Number BP11DCRK400 BP11DCRK455 BP11DCRK480 BP11DCRK500 BP11DCRK600 BP11DCRK680 TYPE CRA TOKO Part Number DCRA455 DCRA480 DCRA500 m o .c U t4 e e h S ta a .D w w w * * * * * * * SELECTION GUIDE FOR STANDARD RESONATORS Oscillation Frequency (kHz) 4000.5% 4550.5% 4800.5% 5000.5% 6000.5% 6800.5% Resonant Impedance ( Max.) 400 400 400 400 400 400 Oscillation Frequency Temperature Stability (-20C~+80C) 0.3% 0.3% 0.3% 0.3% 0.3% 0.3% External Capacitor C1 C2 (pF) (pF) 560 560 560 560 470 470 200 200 200 200 200 200 1.5 (Unit : mm) Note Oscillating Frequency (kHz) 4550.5% 4800.5% 5000.5% Resonance Impedance ( Max.) 3.0 3.0 3.0 Oscillation Frequency Temperature Stability (-20C~+80C) 0.3% 0.3% 0.3% * Oscillation frequency tolerance can be designed to a desired level. * TOKO performs matching evaluation for all types of ICs. Please contact us regarding applicable products. CRK IC IC OUTPUT C1 X C2 IC VDD X C1,C2 : 1/6 PD4069UBC : +5V : CRK : External capacitors om .c 4U et he aS at .D w w w Built-in Built-in Built-in Built-in Built-in Built-in External appearance differs CRA Load Capacitor C1 C2 (pF) (pF) Note |
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