فرستنده ویدیوی آنالوگ FPV فرستنده ماژول صوتی CVBS 400-900 مگاهرتز UHF vcan1904
فهرست مطالب
نمای کلی
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, از جمله تلفن های همراه, TVs, لپ تاپ ها, MP4, and digital photos.
7گیرنده گیگاهرتز FPV VRX
7فرستنده گیگاهرتز FPV VTX
ویژگی
- UHF AM broadband emission
- سایز کوچک: 17*16.5*4.5میلی متر
- Wide voltage operation: 3.3-4.2V
- مصرف برق کم:3.3V 180mA
- High output power:17DBM به
- Built-in frequency phase-locked loop high stability
- Direct modulation of audio and video signals
- Eight channels can be called flexible
- Chipset ASE373C
کاربرد
- آnalog tv handset
- VCD/DVD/DVB صوتی/Video wireless transmission;
- Baby monitoring;
- Real-time on-site image monitoring;
- Security transmission system;
- PSP game turns the تلویزیون
- Wireless visual reversing
پین تعریف کنید
| سنجاق | Pin Name | I/O | نشان دادن |
| 1 | VCC_IN | ورودی | 3.3V ورودی برق |
| 2 | GND | ورودی | power ground |
| 3 | VIDEO_IN | ورودی | ورودی ویدیو, the input impedance is 75 اهم |
| 4 | AUDIO_in | ورودی | ورودی صوتی |
| 5 | CH1 | ورودی | Channel selection input |
| 6 | CH2 | ورودی | Channel selection input |
| 7 | CH3 | ورودی | Channel selection input |
| 8 | روشن | ورودی | آنتن |
The long black cable is the transmitter antenna. 4 پین, 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:
| فرکانس | CH1 CH2 CH3 سنجاق | connect |
| 775.25 | 0 0 0 | CH1; CH2；CH3 GND |
| 759.25 | 0 0 1 | CH3 GND,CH1；CH2 null |
| 743.25 | 0 1 0 | CH2 GND,CH1；CH3 null |
| 727.25 | 0 1 1 | CH2；CH3 GND,CH1 null |
| 711.25 | 1 0 0 | CH1 GND,CH2；CH3 null |
| 695.25 | 1 0 1 | CH1；CH3 GND,CH2 null |
| 679.25 | 1 1 0 | CH1; CH2 GND,CH3 null |
| 663.25 | 1 1 1 | CH1; CH2；CH3 null |
مشخصات
| Absolute Maximum Ratings (Exceeding the maximum ratings may cause permanent damage to internal devices) | ||||||
| پارامتر | symbol | working conditions | minimum value | ارزش معمولی | maximum value | واحد |
| supply voltage | VCC | -0.5 | 4.2 | در | ||
| ولتاژ ورودی | ما | -0.5 | VCC+0.5 | در | ||
| The output voltage | Vo | When the load condition is met | GND | VCC-0.5 | در | |
| دمای ذخیره سازی | Tstg | Refers only to the module itself, without packaging | -20 | 60 | درجه سانتی گراد | |
| humidity | 10% | 50% | 85% | |||
| Recommended working conditions (If the recommended working conditions are not met, the specified electrical performance indicators may not be achieved) | ||||||
| پارامتر | symbol | working conditions | minimum value | ارزش معمولی | maximum value | واحد |
| supply voltage | VCC | 3.3 | 3.3. | 4.2 | در | |
| Power supply ripple voltage | Vlp | 10 | 25 | mVpp | ||
| ولتاژ ورودی | ما | GND | – | VCC | در | |
| دمای عملیاتی | Facing | Only refers to the module itself, excluding other parts | -20 | 27 | 60 | درجه سانتی گراد |
| Electrical Characteristics (VCC=5.0V, Ta=25°C) | ||||||
| پارامتر | symbol | working conditions | minimum value | ارزش معمولی | maximum value | واحد |
| supply current | Icc | Vcc=5.0V | 160 | 180 | 200 | mA |
| فرکانس رادیویی | ||||||
| توان خروجی | RFo | 50Ω system | 16 | 17 | 18 | DBM به |
| امپدانس خروجی | — | 50 | — | Oh | ||
| Transmit channel frequency | CH1 | — | 775.25 | — | مگاهرتز | |
| CH2 | — | 759.25 | — | مگاهرتز | ||
| CH3 | — | 743.25 | — | مگاهرتز | ||
| CH4 | — | 727.25 | — | مگاهرتز | ||
| CH5 | — | 711.25 | — | مگاهرتز | ||
| CH6 | — | 695.25 | — | مگاهرتز | ||
| CH7 | — | 679.25 | — | مگاهرتز | ||
| CH8 | — | 663.25 | — | مگاهرتز | ||
| frequency stability | Fstb | -100 | +100 | ppm | ||
| ویدئو | ||||||
| Video input impedance | Rvin | 75اوه | Oh | |||
| سطح ورودی ویدیو | come on | negative polarity,75اوهload | 0.9 | 1 | 1.25 | Vpp |
| پاسخ فرکانسی | Fbdv | 50Hz ~ 6MHz | -5 | +5 | دسی بل | |
| SNR | S/N | 38 | دسی بل | |||
پرسش و پاسخ
Q1: 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:
New Model
فرکانس: 440~880Mhz optional, 20M step.
کانال: کانال 8
قدرت: 2W, 4W
منبع تغذیه: 12در دی سی
فعلی: 2W@900mA, 1.2A@4W
Launch size: 66*45*15میلی متر
Launch weight: 50g
Analogue Receiver Board
