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| max705资料 | |
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max705 |
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file size : 116 kb
manufacturer:maxim description:the circuit of the tsop22..ya1 is designed in that way that unexpected output pulses due to noise or disturbance signals are avoided. a bandpassfilter, an integrator stage and an automatic gain control are used to suppress such disturbances. the distinguishing mark between data signal and dis- turbance signal are carrier frequency, burst length and duty cycle. the data signal should fulfill the following conditions: • carrier frequency should be close to center fre- quency of the bandpass (e.g. 38 khz). • burst length should be 10 cycles/burst or longer. • after each burst which is between 10 cycles and 70 cycles a gap time of at least 14 cycles is necessary. • for each burst which is longer than 1.8 ms a corre- sponding gap time is necessary at some time in the data stream. this gap time should be at least 4 times longer than the burst. • up to 800 short bursts per second can be received continuously. some examples for suitable data format are: nec code (repetitive pulse), nec code (repetitive data), toshiba micom format, sharp code, rc5 code, rc6 code, r-2000 code, sony code. when a disturbance signal is applied to the tsop22..ya1 it can still receive the data signal. how- ever the sensitivity is reduced to that level that no unexpected pulses will occure. some examples for such disturbance signals which are suppressed by the tsop22..ya1 are: • dc light (e.g. from tungsten bulb or sunlight) • continuous signal at 38 khz or at any other fre- quency |
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| 1pcs | 100pcs | 1k | 10k | ||
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型 号：max705 厂 家：maxim 封 装：0630 批 号： 数 量：27054 说 明： |
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运 费： 所在地： 新旧程度： |
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| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
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