FPV Analoger Videosender CVBS Audio-Video-Modulsender 400-900 MHz UHF vcan1904
Table of Contents
Overview
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, TVs, Laptops, MP4, and digital photos.
7GHz FPV VRX-Empfänger
7GHz FPV VTX-Sender
Besonderheit
- UHF AM broadband emission
- Kleine Größe: 17*16.5*4.5mm
- Wide voltage operation: 3.3-4.2V
- Geringer Stromverbrauch:3.3V 180mA
- High output power:17dBm
- Built-in frequency phase-locked loop high stability
- Direct modulation of audio and video signals
- Eight channels can be called flexible
- Chipset ASE373C
Anwendung
- Analog tv handset
- VCD/DVD/DVB Audio-/Video wireless transmission;
- Baby monitoring;
- Real-time on-site image monitoring;
- Security transmission system;
- PSP game turns the Fernseher
- Wireless visual reversing
Pin definieren
| Stift | Pin Name | E/A | illustrate |
| 1 | VCC_IN | Eingang | 3.3V power input |
| 2 | GND | Eingang | power ground |
| 3 | VIDEO_IN | Eingang | Videoeingang, the input impedance is 75 Ohm |
| 4 | AUDIO_in | Eingang | Audioeingang |
| 5 | CH1 | Eingang | Channel selection input |
| 6 | CH2 | Eingang | Channel selection input |
| 7 | CH3 | Eingang | Channel selection input |
| 8 | AN | Eingang | Antenne |
The long black cable is the transmitter antenna. 4 STIFT, 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 Stift | 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 |
Spezifikation
| Absolute Höchstbewertungen (Exceeding the maximum ratings may cause permanent damage to internal devices) | ||||||
| Parameter | symbol | working conditions | minimum value | typischer Wert | maximum value | Einheit |
| supply voltage | VCC | -0.5 | 4.2 | IN | ||
| Eingangsspannung | Wir | -0.5 | VCC+0.5 | IN | ||
| The output voltage | Vo | When the load condition is met | GND | VCC-0.5 | IN | |
| Lagertemperatur | Tstg | Refers only to the module itself, without packaging | -20 | 60 | °C | |
| Luftfeuchtigkeit | 10% | 50% | 85% | |||
| Recommended working conditions (If the recommended working conditions are not met, the specified electrical performance indicators may not be achieved) | ||||||
| Parameter | symbol | working conditions | minimum value | typischer Wert | maximum value | Einheit |
| supply voltage | VCC | 3.3 | 3.3. | 4.2 | IN | |
| Power supply ripple voltage | Vlp | 10 | 25 | mVpp | ||
| Eingangsspannung | Wir | GND | – | VCC | IN | |
| Betriebstemperatur | Facing | Only refers to the module itself, excluding other parts | -20 | 27 | 60 | °C |
| Elektrische Eigenschaften (VCC=5.0V, Ta=25°C) | ||||||
| Parameter | symbol | working conditions | minimum value | typischer Wert | maximum value | Einheit |
| supply current | Icc | Vcc=5.0V | 160 | 180 | 200 | mA |
| Radiofrequenz | ||||||
| Ausgangsleistung | 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 | ||
| Video | ||||||
| Video input impedance | Rvin | 75Oh | Oh | |||
| Video input level | come on | negative polarity,75Ohladen | 0.9 | 1 | 1.25 | Vpp |
| Frequency response | Fbdv | 50Hz ~ 6MHz | -5 | +5 | dB | |
| SNR | Seriennummer | 38 | dB | |||
FAQ
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:
Neues Modell
Frequency: 440~880 MHz optional, 20M-Schritt.
Kanal: Kanal 8
Leistung: 2W, 4W
Stromversorgung: 12In DC
Aktuell: 2W@900mA, 1.2A@4W
Launch size: 66*45*15mm
Launch weight: 50g
Analogue Receiver Board
