1.SCOPE
SAW filter series have broad line up products meeting all broadcast standard including NTSC,PAL and SECAM system...
1.SCOPE
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 Type : BF44A3M
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 AC
voltage VDC Vpp 12 10 V V Between any terminals Between any terminals
3.2 Electrical Characteristics
Characteristics of channel 1 (switching input pin 2 connected to ground pin 1)
Source impedance Load impedance Item Center frequency Insertion attenuation Reference level Pass bandwidth
Zs=50¦¸ ZL=2k¦¸//3pF Freq min Fo 44...