1.scope the saw filter series have broad line up products meeting all broadcast standard including ntsc, pal and secam systems. these filters are composed of two inter - digital transducers on a single -crystal piezo -electrical chip. they are used in electronic equipments such as tv and so on. 2.construction 2.1 dimension and materials type: BF36A1M 0: year (0,1,2,3,4,5,6,7,8,9) b:product in this quarter(a:1~3,b:4~6,c:7~9,d:10~12) 2.2. circuit construction, measurement circuit
3.characteristics standard atmospheric conditions unless otherwise specified , the standard rang of atmospheric conditions for making measurements and tests is as follows; ambient temperatu re : 15c to 35c relative humidity : 25% to 85% air pressure : 86kpa to 106kpa operating temperature rang operating temperature rang is the rang of ambient temperatures in which the filter can be operated continuously. - 10c ~ +60c storage temperature rang storage temperature rang is the rang of ambient temperatures at which the filter can be stored without damage. conditions are as specified elsewhere in these specifications. - 40c ~ +70c reference temperature +25c 3.1 maximum rating dc voltage vdc 12 v between any terminals ac voltage vpp 10 v between any terminals 3.2 electrical characteristics source impedance zs=50 ohm
load impedance z l =2k ohm//3pf t a =25c item freq m in typ max center frequency fo - 36.125 - mhz insertion attenuation reference level 36.125mhz 18.3 20.3 22.3 db amplitude ripple: 32.65~39.60 mhz 0.0 0.6 1.2 db b3db - 8.0 - mhz pass bandwidth b30db - 9.4 - mhz 32.32mhz - 0.6 0.9 2.4 db 39.93mhz - 0.1 1.4 2.9 db 32.13mhz 0.9 2.7 4.5 db 31.25mhz 35.0 45.0 - db relative attenuation 47.25mhz 40.0 52.0 - db 25.00~31.25mhz 30.0 40 db sidelobe 40.90~50.00mhz 30.0 38 db temperature coefficient - 72 ppm/k 3.3 environmental performance characteristics item test condition allowable change of absolute level at center frequency(db) high temperature test 70c 16h , < 1.0 low temperature test - 25c 2h < 1.0 h umidity test 40c 90- 95% 100h < 1.0 thermal cycle - 25c==70c 3cycle 30min. 5min. 30min. < 1.0 solder temperature test sold temp.260c for 10 sec. < 1.0 soldering immerse the pins melt solder at 260c+5/- 0c for 5 sec. more then 95% of total area of the pins should be covered with solder 3.4 mechanical test item test condition allowable change of absolute level at center frequency(db) vibration test frequency 10~55hz amplitude 1.5mm 3 directions 2 h each <1.0 drop test on maple plate frome 1 m high 3 times <1.0 lead pull test pull with 1 kg force for 30 seconds <1.0 lead bend test 90 o bending with 500g weigh 2 times <1.0
3.5 voltage dischar ge test item test condition allowable change of absolute level at center frequency(db) surge test between any two electrode <1.0 3.6 frequency response
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