 |
|||||||
|
|||||||
|
|
|||||||
|
|||||||
|
|
| ltc1159is资料 | |
|
ltc1159is |
|
file size : 116 kb
manufacturer:linear description:demodulator converts the psk signal shaped by the carrier extraction circuit of the analog block into binary data. digital pll compares the frequency of the oscillator circuit in the analog block with the signal shaped by the carrier extraction circuit and generates a clock with a fixed frequency for operation of the entire digital block. using the clock the internal lsi operates in synchronize with the carrier. data processing processes data according to the commands received. processes include parity check, e2prom write and read, and reset of the entire lsi. security logic two keys can be set simultaneously using the security area allocated to the e2prom. using the keys, write/read, read or no access can be set in units of 32-byte blocks (obtained by dividing e2prom memory area by four). (for example, with key a, read/write for a particular block can be set and other blocks can be only read, while with key b, read/write for any blocks can be set.) status reply replies to a command from the r/w consist of the status followed by data. the status represents, the internal status of the lsi to the r/w. if the lsi status is normal, status data 00h is inserted at the beginning (without any parity, start or end bits) followed by the data. if the lsi status is abnormal, no data follows and only the status indicating the abnormality is sent. the bit corresponding to each abnormality condition which has occurred is set to 1 in the status field. multi-read multi-read is a function used for reading multiple rfids in the communications area using the same reader/writer (r/w). an rfid (lsi) generates a random number internally using the multi-read command transmitted by the r/w. the rfid replies using the response timing determined by the corresponding time slot. thus, replies from the different rfids will not conflict, enabling data to be received properly by the r/w. note: depending on the reading environment, the ability to read all the data may fluctuate . in some cases, some data may be left unread (since it cannot be undetected). toshiba recommend the use of an additional chip with a detection function other than the multi-read function. |
|
| 1pcs | 100pcs | 1k | 10k | ||
|
型 号：ltc1159is 厂 家：linear 封 装：0529 批 号：smd/dip 数 量：2856 说 明： |
|||||
|
运 费： 所在地： 新旧程度： |
|||||
| 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 |
九游j9官网登录入口的版权所有：深圳市浩兴电子有限公司九游j9官网登录入口的版权所有 九游j9官网登录入口的技术支持：维库电子市场网
访问统计：
建议使用分辨率:1024*768 九游j9官网登录入口的友情链接
后台管理
