25 March 1993 Specification for monolithic crystal filter: MQF 21.4-1500/03 1. General 1.1. Package: 1.2. 1.3. 1.4. 1.5. 1.6. Type name: Number of poles: Operable temperature range: Operating temperature range: Storage temperature range: 2. Electric values 2.1. Nominal centre frequency fo: 2.2. Pass band 2.2.1. Bandwidth between 3 dB - frequencies: 2.2.2. Ripple: 2.2.3. Insertion loss: ( measured on smallest attenuation in pass band ) 2.3. MQF 21.4-1500/03 6 -30°C to +80°C -25°C to +70°C -55°C to +80°C 21.4 MHz fo 7.5 kHz 2.0 dB at fo 6.0 kHz 2.0 dB Stop band 2.3.1. fo 17.5 kHz 2.3.2. fo 25 kHz....... 300 kHz 45 dB 65 dB 2.4. Terminating impedance R//C ( input and output ): 1600 // 2.0 pF 3. Marking: manufacturer, date code 21.4-1500/03 4. Environment conditions: Corresponding to Vectron standard CF001 _____________________________________________________________________________________ Edited by: date: ______________________________ name: ______________________________