جهاز استقبال DVB-T مزود بمعدات احترافية على مستوى البث ASI
جدول المحتويات
Do you have a DVB-T receiver, how many antennas are in it, can it be ASI out?
1. Our DVB-T receiver has one-antenna, two-antenna, and four-antenna models. Some models of the DVB-T receiver have ASI output.
2. عموما, ASI is input to the encoder. Do you want to output it to the decoder separately?
3. Our demodulation module, the demodulation chip above, uses a parallel interface called TSI (لديها العديد من خطوط البيانات أكثر من واجهة ASI)
4. أيضا, the demodulation module does not have an MCU and cannot be provided to customers alone. It needs to be used in conjunction with our decoding board.
5. فمثلا, مع لوحة فك التشفير لدينا, نقوم بتحويل الإشارة من واجهة TSI لوحدة إزالة التشكيل إلى إشارة منفذ الشبكة (فمثلا, our one-way cofdm transparent transmission does this)
What chip did you use for your DVB-T receiver with ASI output?
DIB9090 for demodulation chip.
MSD7802 for decoding chip
Your ASI output port is SMA! There are very few 75 ohm ones.
هناك 75 ohm ones. في الواقع, the impedance of this connector has little impact on ASI. The main impact is that the cable has a greater impact.
Disagree. The impact is huge. There are also requirements for micro strips on electrical boards.
PCBA impedance is 75Ω, connector impedance is 75 أوم.
How can I change the frequency on your board? RS-232, or Ethernet?
Use the keyboard to change the frequency, and use the RS232 serial port to connect to the keyboard (parameter adjustment board) to adjust parameters.
Can all connectors be replaced with 75 ohm MCX?
بالتأكيد, we can change the SMA connector to MCX.
Can you quote me the best price?
Do you need PCBA only or with the customized metal shell?
