FPV 아날로그 비디오 송신기 CVBS 오디오 비디오 모듈 송신기 400-900MHz UHF vcan1904
Table of Contents
개요
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, 휴대폰을 포함해, TVs, 노트북, MP4, and digital photos.
7GHz FPV VRX 수신기
7GHz FPV VTX 송신기
Feature
- UHF AM broadband emission
- 작은 사이즈: 17*16.5*4.5mm
- Wide voltage operation: 3.3-4.2다섯
- 낮은 전력 소비:3.3V 180mA
- 높은 출력 전력:17dBm
- Built-in frequency phase-locked loop high stability
- Direct modulation of audio and video signals
- Eight channels can be called flexible
- Chipset ASE373C
애플리케이션
- 에이nalog tv handset
- VCD/DVD/DVB 오디오/Video wireless transmission;
- Baby monitoring;
- Real-time on-site image monitoring;
- Security transmission system;
- PSP game turns the TV
- Wireless visual reversing
핀 정의
| 핀 | 핀 이름 | 입출력 | illustrate |
| 1 | VCC_IN | 입력 | 3.3다섯 전원 입력 |
| 2 | 접지 | 입력 | power ground |
| 3 | VIDEO_IN | 입력 | 비디오 입력, the input impedance is 75 옴 |
| 4 | AUDIO_in | 입력 | 오디오 입력 |
| 5 | CH1 | 입력 | Channel selection input |
| 6 | CH2 | 입력 | Channel selection input |
| 7 | CH3 | 입력 | Channel selection input |
| 8 | 에 | 입력 | antenna |
The long black cable is the transmitter antenna. 4 핀, 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 핀 | connect |
| 775.25 | 0 0 0 | CH1; CH2；CH3 접지 |
| 759.25 | 0 0 1 | CH3 접지,CH1；CH2 null |
| 743.25 | 0 1 0 | CH2 접지,CH1；CH3 null |
| 727.25 | 0 1 1 | CH2；CH3 접지,CH1 null |
| 711.25 | 1 0 0 | CH1 접지,CH2；CH3 null |
| 695.25 | 1 0 1 | CH1；CH3 접지,CH2 null |
| 679.25 | 1 1 0 | CH1; CH2 접지,CH3 null |
| 663.25 | 1 1 1 | CH1; CH2；CH3 null |
사양
| 절대 최대 등급 (Exceeding the maximum ratings may cause permanent damage to internal devices) | ||||||
| 매개변수 | symbol | working conditions | minimum value | 전형적인 가치 | maximum value | 단위 |
| supply voltage | VCC | -0.5 | 4.2 | 안에 | ||
| 입력 전압 | 우리 | -0.5 | VCC+0.5 | 안에 | ||
| The output voltage | Vo | When the load condition is met | 접지 | VCC-0.5 | 안에 | |
| 보관 온도 | Tstg | Refers only to the module itself, without packaging | -20 | 60 | ℃ | |
| 습기 | 10% | 50% | 85% | |||
| Recommended working conditions (If the recommended working conditions are not met, the specified electrical performance indicators may not be achieved) | ||||||
| 매개변수 | symbol | working conditions | minimum value | 전형적인 가치 | maximum value | 단위 |
| supply voltage | VCC | 3.3 | 3.3. | 4.2 | 안에 | |
| Power supply ripple voltage | Vlp | 10 | 25 | mVpp | ||
| 입력 전압 | 우리 | 접지 | – | VCC | 안에 | |
| 작동 온도 | Facing | Only refers to the module itself, excluding other parts | -20 | 27 | 60 | ℃ |
| Electrical Characteristics (VCC=5.0V, Ta=25°C) | ||||||
| 매개변수 | symbol | working conditions | minimum value | 전형적인 가치 | maximum value | 단위 |
| supply current | Icc | Vcc=5.0V | 160 | 180 | 200 | 엄마 |
| 무선 주파수 | ||||||
| 출력 전력 | RFo | 50Ω system | 16 | 17 | 18 | dBm |
| 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 | ppm | ||
| 동영상 | ||||||
| Video input impedance | Rvin | 75오 | Oh | |||
| 비디오 입력 레벨 | come on | negative polarity,75오load | 0.9 | 1 | 1.25 | Vpp |
| 주파수 응답 | Fbdv | 50Hz ~ 6MHz | -5 | +5 | 데시벨 | |
| SNR | S/N | 38 | 데시벨 | |||
FAQ
Q1: Can you make this UHF wireless video transmitter with a 10-watt amplifier?
2분기: Have you got a working 144.500 144.750 vhf model like this for ham?
A2:
New Model
Frequency: 440~880Mhz optional, 20M step.
채널: 채널 8
힘: 2W, 4W
전원공급장치: 12DC에서
현재의: 2W@900mA, 1.2A@4W
Launch size: 66*45*15mm
Launch weight: 50g
Analogue Receiver Board
