IF389B4M

1.SCOPE HAODA’ s SAW filter series have broad line up products meeting all broadcast standard including NTSC,PAL and SECAM systems. These filters are composed of two interdigital transducers on a single-crystal. piezoelectrical chip. they are used in electronic equipments such as TV and so on. 2.Construction 2.1 Dimension and materials Manufacturer’ s name : HAODA ELECTRONICS Co. LTD(CHINA) Type : IF389B4M 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 temperature : 15¡æ to 35¡æ 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. -10¡æ ~ +60¡æ 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. -40¡æ ~ +70¡æ Reference temperature +25¡æ 3.1 Maximum Rating DC voltage VDC 12 V AC voltage Vpp 10 V 3.2 Electrical Characteristics Source impedance Zs=50¦¸ Load impedance ZL=2k¦¸//3pF Items Insertion attenuation Reference level Freq 37.40MHz Min 15.3 4.2 0.0 12.5 12.5 41.0 40.0 40.0 35.0 35.0 typ 17.3 5.7 1.5 14.5 14.5 50.0 52.0 5...