HDF480A

Approved by: Checked by: Issued by: SPECIFICATION PRODUCT: MODEL: SAW FILTER HDF480A TO-39 SHOULDER ELECTRONICS LIMITED SHOULDER ELECTRONICS LIMITED 1. SCOPE This specification shall cover the characteristics of SAW filter with 480MHz used for DBS receiver. 2. ELECTRICAL SPECIFICATION DC Voltage VDC AC Voltage Vpp Operation temperature Storage temperature RF Power Dissipation 10V 10V50Hz/60Hz -20¡æto +60¡æ -45¡æto +85¡æ 0dBm Electronic Characteristics 2-1.Typical frequency response 2-2.Electrical characteristics Part number Center frequency fo Insertion Loss: Fo: Fo¡À 39.8~45.8MHz fo¡À 45.8~100.0MHz Passband width( -3dB) Ripple(Fo¡À 4.0MHz) Group delay Group delay ripple Input/Output impedance F480A 480.000 4.5max 45.0min 50.0min 9.0 type 2.0max 100 100 50//0 Unit MHz dB MHz dB ns ns ¦¸ //pF SHOULDER ELECTRONICS LIMITED (Note: Operating te mperature Range:-20¡æto +60¡æ ) 3.TEST CIRCUIT 4. DIMENSION 5. ENVIRONMENTAL CHARACTERISTICS 5-1 High temperature exposure Subject the device to +85¡æfor 16 hours. Then release the filter into the room conditions for 24 hours prior to the measurement. It shall fulfill the specifications in table 1. 5-2 Low temperature exposure SHOULDER ELECTRONICS LIMITED Subject the device to -20¡æfor 16 hours. Then release the device into the room conditions for 24 hours prior to the measurement. It shall fulfill the specifications in table 1. 5-3 Temperature cycling Subject the device to a low temperature of -40¡æ for 30 minutes. Followin...