06 July 1998 Specification for monolithic crystal filter: MQF 21.4-2000/21 1. General 1.1. Package: 1.2. 1.3. 1.4. 1.5. Type name: Number of poles: Operating temperature range: Storage temperature range: 2. Electric values 2.1. Nominal centre frequency fo: 2.2. Pass band 2.2.1. 2.2.2. 2.2.3. 2.2.4. Bandwidth between 3 dB - frequencies: Ripple: Group delay distortion Insertion loss: ( measured on smallest attenuation in pass band ) 2.3. Stop band MQF 21.4-2000/21 6 -40°C to +85°C -55°C to +90°C 21.4 MHz fo 10 kHz 1.0 dB at fo 6.0 kHz 32.5 µs at fo 8.0 kHz 6.0 dB 2.3.1. fo 30 kHz 2.3.2. fo 55 kHz........ 5 MHz 2.3.3. Spurious responses: 45 dB 80 dB > 50 dB 2.4. Terminating impedance ( input and output ): 50 3. Marking: manufacturer, date code MQF 21.4-2000/21 // 0 pF 4. Environment conditions: Corresponding to Vectron standard CF001 ___________________________________________________________________________________ Edited by: date: ______________________________ name: ____________________________