PLC 工控机 嵌入式系统 人机界面 工业以太网 现场总线 变频器 机器视觉 DCS PAC/PLMC SCADA 工业软件 ICS信息安全 无线通讯 机箱机柜
深圳市诺道科技有限公司
深圳市诺道科技有限公司
2.4g无线音视频小体积发射模块
4个频道可选
10dbm/17dbm功率可选
应用于无线监控，可视倒车雷达，带摄像头的遥控玩具等。
1 Application
1.1 This specification applies to VIDEO-RF modulator with sound submariner
processing signals.
1.2 RF transmission frequency group：
Ch1— 2414MHz
Ch2— 2432MHz
Ch3— 2450MHz
Ch4— 2468MHz
1.3 Modulation type： FM
2 Mechanical Specification
Please refer to Figure 1.
3 Environmental Specification
3.1 Temperature -10℃ ~ +60℃
4 Test Condition
4.1 Ambient temperature：25℃
4.2 Video input voltage：1.0Vp-p,150 （IRE）
4.3 Audio input voltage：1.0Vp-p sine wave signal 1KHz
5 Electrical Characteristics
5.1 DC Characteristics
| No. | Item | specifications | Unit | Test Condition | ||
| MIN | TYP. | MAX | | |||
| 5.1.1 SA2418 DC Characteristics | ||||||
| 1 | Supply Voltage | | 5V or 3.3v | | VDc | |
| 2 | Current Consumption | | 45 | 50 | mA | |
| 5.1.2 SA2428 DC Characteristics | ||||||
| 1 | Supply Voltage | | 5v | | VDc | |
| 2 | Current Consumption | | 85 | 100 | mA | |
| 5.2 Video Characteristics | ||||||
| 1 | Input Impedance | | 75 | | Ω | |
| 2 | Peak Deviation | | 1.2 | | MHz | MOD=sine wave 400khz 1Vp-p |
| No. | Item | specifications | Unit | Test Condition | ||
| MIN | TYP. | MAX | | |||
| 5.3 Audio Characteristics | ||||||
| 1 | Input Impedance | | 10 | | kΩ | |
| 2 | Peak Deviation | | 12 | | Khz | 1Vp-p（1khz） |
| 3 | Pre-emphasis | | 50 | | μsec | |
| 5.3.2 SA2428 DC Characteristics | ||||||
| 1 | Supply Voltage | | 5v | | VDc | |
| 2 | Current Consumption | | 85 | 100 | mA | |
5.4 Output characteristic（TX/RF）
| 5.4.1 Output characteristic（SA2418 TX/RF） | |||||||
| 1 | Tx Power | | 17 | | dbm | | |
| 2 | Audio subcarrier Lever | -24 | -25 | -27 | Dbc | Video and Audio index | |
| 3 | Audio subcarrier Freq. NCY | L | 6470 | 6500 | 6530 | KHZ | |
| | | | | ||||
| 5.4.2 Output characteristic（SA2428 TX/RF） | |||||||
| 1 | Tx Power | | 17 | | dbm | | |
| 2 | Audio subcarrier Lever | -23 | -25 | -27 | Dbc | Video and Audio index | |
| 3 | Audio subcarrier Freq. NCY | L | 6470 | 6500 | 6530 | KHZ | |
| | | | | ||||
6 pin assignment
| J1 Pin | Slide Mode |
| 1 | Audio L（6.5M） |
| 2 | Video |
| 3 | Vcc（DC+5V） |
| 4 | GND |
| 5 | CH3 |
| 6 | CH2 |
| 7 | CH1 |
7 transmitter application circuit
8、Module Tx Dimension
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