RFID Application Kit ATAK2270
The LF-RFID kit is available to demonstrate the key features of various RFID products. The included software supports the following products: U2270B, TK5530/e5530, TK5551, TK552/T5552, T5557/ATA5567, ATA5570. The kit contains samples, a CD-ROM containing the installation software, product documentation, and all necessary accessories.
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RFID Dev. Board ATAB5570 for Sensor Application
The ATA5570 is based on the ATA5567 but enlarged by an additional sensor input. The board is equipped with a switchable sensor resistor. Depending on the impedance, the memory data of the tag will be sent in inverse or in non-inverse mode. The board design is also suitable to test other tag versions in SO8 packages.
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Song Quality Improvement Using the DAC on AT89C51SND1 Reference Design
Signal to noise ratio can be improved by controlling the song level both with the external
DAC and with the AT89C51SND1 song level SFR register. To control the song level with the DAC UDA1330ATS, the L3 mode must be used. This application note gives some information on activating/de-activating the L3 mode of DAC UDA1330ATS (or compatible hardware) for the AT89C51SND1 Reference Design. Application Modes.
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Smart Battery Reference Design
Rechargeable Lithium-Ion (Li-Ion) batteries are widely used in portable electronics such as cell phones, digital cameras and laptop computers. This is mainly due to the high energy to weight ratio of these batteries. Maximizing the lifetime and energy storage of Li-Ion batteries requires careful monitoring and control of the charge and discharge cycles. Incorrect use may even pose a threat to safety, as Li-Ion batteries can explode under extreme conditions. For these reasons intelligent batteries - smart batteries - have been introduced.
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MP3 Player Reference Design Based on AT89C51SND1 Microcontroller
When connected to a PC using a USB cable, the player can be accessed by Flexible In-System Programming (FLIP) software. To enter by software in the ISP bootloader of the player, press the Function button while the USB cable is plugged into the PC (the ISP software condition is checked only during power ON Reset).
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