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CHEQUERS ELECTRONIC (CHINA) LIMITED

CERAMIC RESONATOR SPECIFICATION

PART NO.: ZTB480EC

Part no. : ZTB480EC

Printed on : 24-Sep-07

Prepared : Nelson

Ver. Ctrl. : 030605/C

Page : 1 of 4

Address : Room 1101-2, Mongkok Commercial Centre, 16 Argyle St.,

Mongkok, Kowloon, Hong Kong SAR, China

Phone : (852) 2391-6725, (852) 2391-7306, (852) 2391-6158

Fax : (852) 2789-3205, (852) 2789-3349

Homepage : http://www.chequers-electronic.com

E-mail : info@chequers-electronic.com

Summary of content (4 pages)

PAGE 1
CHEQUERS ELECTRONIC (CHINA) LIMITED CERAMIC RESONATOR SPECIFICATION PART NO.: ZTB480EC Part no. Printed on Prepared Ver. Ctrl. Page Address Phone Fax Homepage E-mail : : : : : ZTB480EC 24-Sep-07 Nelson 030605/C 1 of 4 : Room 1101-2, Mongkok Commercial Centre, 16 Argyle St., Mongkok, Kowloon, Hong Kong SAR, China : (852) 2391-6725, (852) 2391-7306, (852) 2391-6158 : (852) 2789-3205, (852) 2789-3349 : http://www.chequers-electronic.com : info@chequers-electronic.
PAGE 2
1. Scope This specification shall cover the characteristics of the ceramic resonator ZTB480EC. 2. Specification no.: CQ2.882.480 3. Part no.: ZTB480EC 4.
PAGE 3
5. Environmental characteristics (continue) 5-7 Low Subject the resonator to –30°C ± 5°C for temperature 1000 hours ± 4 hours. Then release the exposure resonator into room condition for 1 hour. Subject the resonator to a low 5-8 Temperature cycling temperature of -55°C for 30 minutes. Followed by a high temperature of 85°C for 30 minutes. Cycling should be repeated 5 times with a transfer time of 15 minutes at room temperature. Then release the resonator into room condition for 1 hour 1.
PAGE 4
7. Measurement 7-1 Measurement condition The reference temperature shall be 25°C ± 2°C. The measurement shall be performed in the temperature range of 5°C to 35°C unless result is doubtful. 7-2 Measurement circuit and equipment 7-2-1 Oscillation frequency shall be measured by the standard test circuit as shown below. 7-2-2 Resonant impedance and anti-resonant impedance shall be measured by the impedance meter (HP-4194A). 7-2-3 Capacitance shall be measured by the Universal Bridge (CCJ-1C).