VF389A1D

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 : VF389A1D 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 3.1 Maximum Rating DC voltage VDC AC voltage Vpp 3.2 Electrical Characteristics Characteristics : +25¡æ 12 10 V V Between any terminals Between any terminals Source impedance Load impedance Item Insertion attenuation Reference level Zs=50¦¸ ZL=2k¦¸//3pF Freq min 37.40MHz 38.90MHz 33.90MHz 34.47MHz 33.40MHz 32.90MHz 32.40MHz 30.90MHz 31.90MHz 40.15MHz 40.40MHz 41.40MHz 40.90...