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PT2262/2272特点:CMOS工艺制造,低功耗,外部元器件少,RC振荡电阻,工作电压范围宽:2.6~15v ,数据最多可达6位,地址码最多可达531441种。应用范围:车辆防盗系统、家庭防盗系统、遥控玩具、其他电器遥控。
外接振荡电阻:
各个公司生产的2272 2262 的芯片震荡电阻配对也是不一样的,
编码发射芯片 编码接收芯片
PT2262 PT2260 SC2260 SC2262 CS5211 PT2272/SC2272/CS5212
1.2M 无 3.3M 1.1M 1.3M 200K
1.5M 无 4.3M 1.4M 1.6M 270K
2.2M 无 6.2M 2M 2.4M 390K
3.3M 无 9.1M 3M 3.6M 680K
4.7M 1.2M 12M 4.3M 5.1M 820K
振荡电阻匹配表 | PT2262 | PT2272 | PT2260 | PT2270 | PT2260 | PT2272 | 4.7M | 820K | 820K | 510K | 1M | 820K | 3.3M | 680K | 1M | 620K | 820K | 650K | 2.2M | 470K | 2M | 1.2M | 620K | 450K | 1.5M | 220K |
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| 360K | 240K | 1.2M | 200K |
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| HS2262 | HS2272 | HS2262 | PT2272 | PT2262 | HS2272 | 10M | 2.2M | 10M | 820K | 4.7M | 2.2M | 6.8M | 1.2M | 6.8M | 680K | 1.5M | 680K | 4.7M | 820K | 4.7M | 470K |
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| 3.3M | 220K |
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| SMC2262 | PT2272 | HS2260 | HS2272 | SMC2262 | PT2272 | 6.2M | 820K | 3.9M | 820K | 6.2M | 820K | 4.7M | 680K | 4.7M | 1.2M | 4.7M | 680K | 3.3M | 470K | 6.8M | 2.2M | 3.3M | 470K |
外接振荡电阻可根据需要进行适当的调节,阻值越大振荡频率越慢,编码的宽度越大,发码一帧的时间越长,但遥控越可靠,距离越远。
2SC2262 /2272 :1.2M 200K ,1.5M 270K ,2.2M 390K ,3.3M 680K ,4.7M 820K
2272- M4 -L4 -T4的解释
2272-M4(点动) 2272-L4(互锁) 2272-T4(自锁)
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