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声表面谐振器规格参数
声表面滤波器尺寸
声表面滤波器测试波形
声表面谐振器规格
Attenuation ( ref. : 37.40 MHz):
声表面滤波器尺寸
声表面滤波器测试波形
声表面谐振器规格
Attenuation ( ref. : 37.40 MHz):
FREQUENCY(MHz) | VALUE | unit | ||
Min | Typ. | Max. | ||
Insertion attenuation 37.40 MHz | 11.5 | 13.5 | 15.5 | dB |
Picture carrier 38.90 MHz | 4.0 | 5.5 | 7.0 | dB |
Color carrier 34.47MHz | 1.5 | 3.0 | 4.5 | dB |
Sound carrier 33.40 MHz | 38.0 | 45.0 | - | dB |
Adjacent picture carrier 30.90 MHz 31.90 MHz 32.40MHz |
42.0 | 53.0 | - | dB |
42.0 | 53.0 | - | dB | |
38.0 | 49.0 | - | dB | |
Adjacent sound carrier 40.15 MHz 40.40MHz 41.40 MHz |
30.0 | 42.0 | - | dB |
42.0 | 52.0 | - | dB | |
38.0 | 48.0 | - | dB | |
Lower sidelobe: 25.00-31.90 MHz | 36.0 | 45.0 | - | dB |
Upper sidelobe: 40.40-45.00 MHz | 35.0 | 40.0 | - | dB |
Reflected wave signal suppression 1,1 ms ... 6,0 ms after main pulse (test pulse 250 ns,carrier frequency 37,40 MHz) |
40.0 | 50.0 | - | dB |
Feedthrough signal suppression 1,2 ms ... 1,0 ms before main pulse (test pulse 250 ns,carrier frequency 37,40 MHz) |
46.0 | 56.0 | - | dB |
Group delay predistortion (reference frequency 38,90 MHz) 36,70 MHz 34,47 MHz |
- - |
-80 20 |
- - |
ns ns |
Impedance at 37.40 MHz Input Impedance Output Impedance |
1.5|| 14.1 1.3 || 5.6 |
KW || pF KW || pF |
||
Temperature coefficient TC | - | -72 | - | ppm/K |