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参数资料
| 型号： | ATAB5749-3 |
| 厂商： | Atmel |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | BOARD XMITTER FOR 315MHZ ATA5749 |
| 标准包装： | 1 |
| 类型： | 发射器 |
| 频率： | 315MHz |
| 适用于相关产品： | ATAB5749 |
| 已供物品： | 板 |
1. Delivery Status of the Transmitter Board
1.1
Hardware
The front and the rear view of the transmitter board are illustrated in Figure 1-1 on page 3 . The
schematic of the board is shown in Figure 1-2 on page 4 , and the board layout information is
showed in Figure 1-3 on page 5 to Figure 1-5 on page 6 . The bill of material of the transmitter
board is listed in Table 1-1 on page 6 .
The board contains the following parts:
? Lithium battery
? Transmitter matched to the loop antenna.
Note:
1. Atmel offer 2 different demo boards for the ATA5749 due to the Loop Antenna matching,
? AVR ATmega88 is used on the board for programming
matching to the 315 MHz and 433.92 MHz.
Generally the ATA5749 can be set in both 315 MHz and 433.92 MHz transmit frequency with
one 13.0 MHz crystal. So the 315 MHz board can be reprogrammed for 433.92 MHz trans-
mitting purposes. In this case the matching elements must be changed to get the optimal
transmit power.
Verification with 50 Ω matching is possible.
?
? An external microcontroller can be used to set the ATA5749 on the boards since some test
points are placed on the control and the programming traces of ATA5749.
Note:
The connection between the ATmega88 and ATA5749 can be disconnected by desoldering the
jumpers (BR1 to BR4). (See the schematic of the board in Figure 1-2 on page 4 .)
? Three buttons are available.
? Two Light Emitting Diodes are available to show the activity status of the board. The LED 1
indicates that the calibration of the internal RC oscillator of ATmega88 exceeds the defined
tolerance limits in the software of ATmega88. LED 2 indicates the transmit functions of the
transmitter board.
Note:
The internal RC oscillator is always calibrated internally when any button is pushed. In case that
no exact calibration value can be calculated, the closest value will be taken.
A short flash of the LED 2 indicates the start of the function “Single Telegram” or “Single Pat-
tern” when a button is pressed. The same indicator can be also recognized for start and end of
any continuous functionality like “Continuous Telegram”, “Continuous Pattern”, etc.
2
ATAB5749
9138A–AUTO–12/08
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATAB5749-4 | 功能描述:射频开发工具 Demoboard IC 433MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAB5750-8 | 功能描述:射频开发工具 ASK/FSK Tx Board 868MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAB5750-9 | 功能描述:射频开发工具 ASK/FSK Tx Board 915MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAB5753 | 功能描述:射频开发工具 ASK/FSK Tx Board 315MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATAB5754 | 功能描述:射频开发工具 ASK/FSK Tx Board 434MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
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