FPV جهاز إرسال الفيديو التناظري CVBS وحدة الصوت والفيديو المرسل 400-900 ميجا هرتز UHF vcan1904
Table of Contents
ملخص
This module belongs to UHF Radio communication equipment in the frequency band, which can transmit audio and video within a limited range. Designed for low power consumption, integrated VCO, PLL, and AM broadband video demodulation, The audio carrier frequency makes the module smaller; it adopts a small single-board package, which is convenient for users to miniaturize applications.
The application of this module only needs to simply connect the power supply, audio cable, and video cable, and connect the antenna to use a variety of electronic equipment terminals that support analog TV reception, including mobile phones, أجهزة التلفاز, أجهزة الكمبيوتر المحمولة, MP4, and digital photos.
7جهاز استقبال جيجاهيرتز FPV VRX
7جهاز إرسال FPV VTX جيجاهرتز
Feature
- UHF AM broadband emission
- حجم صغير: 17*16.5*4.5mm
- Wide voltage operation: 3.3-4.2V
- انخفاض استهلاك الطاقة:3.3V 180mA
- High output power:17ديسيبل
- Built-in frequency phase-locked loop high stability
- Direct modulation of audio and video signals
- Eight channels can be called flexible
- Chipset ASE373C
طلب
- أnalog tv handset
- VCD/DVD/DVB صوتي/Video wireless transmission;
- Baby monitoring;
- Real-time on-site image monitoring;
- Security transmission system;
- PSP game turns the تلفزيون
- Wireless visual reversing
تعريف الدبوس
| دبوس | Pin Name | الإدخال/الإخراج | يوضح |
| 1 | VCC_IN | مدخل | 3.3V مدخلات الطاقة |
| 2 | أرض | مدخل | power ground |
| 3 | VIDEO_IN | مدخل | إدخال الفيديو, the input impedance is 75 أوم |
| 4 | AUDIO_in | مدخل | إدخال الصوت |
| 5 | CH1 | مدخل | Channel selection input |
| 6 | CH2 | مدخل | Channel selection input |
| 7 | CH3 | مدخل | Channel selection input |
| 8 | على | مدخل | antenna |
The long black cable is the transmitter antenna. 4 دبوس, Red cable is power Input, Black cable is GND, Yellow cable is video input and White cable is audio input.
Application Circuit
Frequency selection table:
| Frequency | CH1 CH2 CH3 دبوس | connect |
| 775.25 | 0 0 0 | CH1; CH2；CH3 أرض |
| 759.25 | 0 0 1 | CH3 أرض,CH1；CH2 null |
| 743.25 | 0 1 0 | CH2 أرض,CH1；CH3 null |
| 727.25 | 0 1 1 | CH2；CH3 أرض,CH1 null |
| 711.25 | 1 0 0 | CH1 أرض,CH2；CH3 null |
| 695.25 | 1 0 1 | CH1；CH3 أرض,CH2 null |
| 679.25 | 1 1 0 | CH1; CH2 أرض,CH3 null |
| 663.25 | 1 1 1 | CH1; CH2；CH3 null |
Specification
| الحد الأقصى للتقييمات المطلقة (Exceeding the maximum ratings may cause permanent damage to internal devices) | ||||||
| المعلمة | رمز | working conditions | minimum value | typical value | maximum value | وحدة |
| supply voltage | VCC | -0.5 | 4.2 | في | ||
| جهد الإدخال | نحن | -0.5 | VCC+0.5 | في | ||
| The output voltage | Vo | When the load condition is met | أرض | VCC-0.5 | في | |
| درجة حرارة التخزين | Tstg | Refers only to the module itself, without packaging | -20 | 60 | درجة مئوية | |
| رطوبة | 10% | 50% | 85% | |||
| Recommended working conditions (If the recommended working conditions are not met, the specified electrical performance indicators may not be achieved) | ||||||
| المعلمة | رمز | working conditions | minimum value | typical value | maximum value | وحدة |
| supply voltage | VCC | 3.3 | 3.3. | 4.2 | في | |
| Power supply ripple voltage | Vlp | 10 | 25 | mVpp | ||
| جهد الإدخال | نحن | أرض | – | VCC | في | |
| درجة حرارة التشغيل | Facing | Only refers to the module itself, excluding other parts | -20 | 27 | 60 | درجة مئوية |
| الخصائص الكهربائية (VCC=5.0V, Ta=25°C) | ||||||
| المعلمة | رمز | working conditions | minimum value | typical value | maximum value | وحدة |
| supply current | Icc | Vcc=5.0V | 160 | 180 | 200 | أماه |
| تردد الراديو | ||||||
| Output Power | RFo | 50Ω system | 16 | 17 | 18 | ديسيبل |
| output impedance | — | 50 | — | Oh | ||
| Transmit channel frequency | CH1 | — | 775.25 | — | MHz | |
| CH2 | — | 759.25 | — | MHz | ||
| CH3 | — | 743.25 | — | MHz | ||
| CH4 | — | 727.25 | — | MHz | ||
| CH5 | — | 711.25 | — | MHz | ||
| CH6 | — | 695.25 | — | MHz | ||
| CH7 | — | 679.25 | — | MHz | ||
| CH8 | — | 663.25 | — | MHz | ||
| frequency stability | Fstb | -100 | +100 | جزء في المليون | ||
| فيديو | ||||||
| Video input impedance | Rvin | 75أوه | Oh | |||
| مستوى إدخال الفيديو | come on | negative polarity,75أوهload | 0.9 | 1 | 1.25 | VPP |
| Frequency response | Fbdv | 50Hz ~ 6MHz | -5 | +5 | ديسيبل | |
| SNR | S/N | 38 | ديسيبل | |||
FAQ
س1: Can you make this UHF wireless video transmitter with a 10-watt amplifier?
Q2: Have you got a working 144.500 144.750 vhf model like this for ham?
A2:
نموذج جديد
Frequency: 440~880Mhz optional, 20M step.
قناة: قناة 8
Power: 2W, 4W
مزود الطاقة: 12في العاصمة
حاضِر: 2W@900mA, 1.2A@4W
Launch size: 66*45*15mm
Launch weight: 50g
Analogue Receiver Board
