2 IN 1 B imishini ikhebula headend rf ezimbili modulator
Incazelo emfushane:
2 IN 1 B imishini ikhebula headend rf ezimbili modulator
Izici
1. Intermediate imvamisa inqubo, okusezingeni eliphezulu Inkomba sokusebenza.
2. wabona izihlungi inqubo.
3. izindlu Zikanokusho.
4. MMIC izifunda zivuliwe izingxenye ezisemqoka futhi SMT ubuchwepheshe
isetshenziswa iyunithi jikelele.
5. Digital ubonisa inombolo yesiteshi.
6. lokukhipha ubamukela isikulufa izihlungi.
7. Njengoba nokuvikeleka esiphakeme futhi high lokushisa ukuzinza.
8. lokukhipha ezingeni ukulungiswa kanye A / V ukulungiswa ku aphambi komtshina.
9. PLL amasu isetshenziswa alalelwayo nama-RF wendawo
oscillator, high imvamisa ukuzinza kanye ukunemba okuphezulu.
10. Singenza iziteshi ezahlukene ngokuvumelana izicelo zamakhasimende.
Imininingwane
|
Yokuzindla |
Lokukhipha Frequency Ibanga |
45-870MHz |
|
imvamisa Ukunemba |
5KHz ± | |
|
lokukhipha Level |
113dBmV (<550MHz) | |
|
Out of Band lokucindezela |
≥ 60dB | |
|
Side-band lokucindezela |
≥ 60dB | |
|
lokukhipha impedance |
75Ω | |
|
Isiqophi Audio yenkampani yenethiwekhi kwesilinganiselo |
-10dB ~ -20dB | |
|
Isiqophi imvamisa |
Level wokufaka |
0.6 ~ 1.5Vp-p |
|
impedance wokufaka |
75Ω | |
|
Yokuzindla wokufaka |
30dB imiz | |
|
K Coefficient |
4% max (2T ishayela) | |
|
Isiqophi s / n |
50dB (akukho ukugcizelela) | |
|
C / L Kokulibala |
40nsec | |
|
imvamisa Impendulo |
± 1dB (25Hz ~ 5.8MHz) | |
|
Ukwahlukaniswa Gain |
± 4% (ukushintshashintsha kwezwi 87,5 887.58787.5) 87.587.585.7) 87,5) 87,5) | |
|
Isigaba Ukwahlukaniswa |
± 4 ° (ukushintshashintsha kwezwi 87.5) | |
|
Umsindo imvamisa |
Level wokufaka |
-10 ~ 10 dBm |
|
impedance wokufaka |
10KΩ imiz | |
|
imvamisa Impendulo |
± 1dB max (40Hz ~ 15KHz) | |
|
ukuhlanekezela |
1% | |
|
Esiginali Emsindweni kwesilinganiselo |
-60dB | |
|
Audio Isithombe Isikhawu |
Ngokwe-standard uhlelo TV | |
|
amandla ukunikezela |
voltage
|
220V noma 110V |
