EURO QUARTZ CERAMIC RESONATORS ZTB SERIES ZTB SERIES 190kHz to 249kHz Test Circuit ZTB Series 190kHz to 249kHz 3.8 Vdd 1/6 CD 4069UBE x 2 13.5 To Frequency Counter RF ZTB 14.7 C1 8.0 10.0 C2 Vdd: RF: +5 Volts 1M Ohm Outline and Dimensions Electrical characteristics Part Number Frequency Range (kHz) Frequency Accuracy at 25°C ZTB ---D 190 to 249 ±1.0kHz Temperature Stability -20° to +80°C Ageing Stability 10 years Resonance Resistance (W) max. ±0.3% ±0.5% 20 C1 (pF) C2 (pF) 330pF 470pF (For ---- insert frequency) ZTB SERIES 250kHz to 374kHz Test Circuit Vdd ZTB Series 250kHz to 374kHz 3.8 1/6 CD 4069UBE x 2 11.0 To Frequency Counter RF ZTB 12.2 C1 7.7 C2 7.0 Vdd: RF: +5 Volts 1M Ohm Outline and Dimensions Electrical characteristics Part Number Frequency Range (kHz) Frequency Accuracy at 25°C ZTB ---D 250 to 374 ±1.0kHz Temperature Stability -20° to +80°C Ageing Stability 10 years Resonance Resistance (W) max. ±0.3% ±0.5% 20 C1 (pF) 220pF C2 (pF) 470pF (For ---- insert frequency) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] www.euroquartz.co.uk