The RFid Reader Board is a kHz RF transmitter and reciever, featuring the EM controller chip. The reader has three main functions. The EM is replacement IC of the UB Atmel reader chip. EM is a CMOS integrated transceiver circuit for RFID applications. EM Read only Receiver and transmit to UART 10 digit hexa code by ASCII.

Author: JoJojas Gojas
Country: Guyana
Language: English (Spanish)
Genre: Automotive
Published (Last): 4 July 2012
Pages: 12
PDF File Size: 2.88 Mb
ePub File Size: 13.94 Mb
ISBN: 216-4-34745-599-4
Downloads: 32342
Price: Free* [*Free Regsitration Required]
Uploader: Goltizahn

When there is roomor the tag is new, it will be stored. Can you point me to some rfiid and calculation tool for building loop PCB antenna.

The antenna coil inductance L and capacitor Cres is a tuned circuit set to resonate at kHz. The oscillator frequency must be KHz. RFID technology is an exciting technology.

Shown here is a typical configuration for reading and writing a kHz Tag. This to prevent damage to the active components IC. The time now is This will in turn suck the other solder into the braid. To assist in your own RFID system design we also stock: Make sure there are no solder drops on the PCB. Dec 248: The Interface to the EM is through 4 lines.


Dec 242: Then, I just depend on the simulation software to optimize the value of the R,C, L so that I get the best S11 at my freq, How reliable is it? Part and Inventory Search.


Magnetic RFID reader antenna 1. Hierarchical block is unconnected 3. Measure pin 1 and pin 2 of IC1 the voltage input and pin 3 and pin 2 of IC1 the voltage output.

How do you get an MCU design rrfid market quickly? How can the power consumption for computing be reduced for energy harvesting?

It is possible that you need to remove a few windings of the antenna coil to get an exact KHz. Equating complex number interms of the other 6.

RFID Reader/Transmitter Board, kHz, EM, IDC

AF modulator in Transmitter what is the A? Turn on power triac – proposed circuit analysis 0. PNP transistor not working 2. The SHD pin controls the sleep mode of the device. How reliable is it? To complete your RFID reader design your digital processor will need to be a suitably fast microprocessor or other computing device in order to translate the encoded data that streams from the EM device, and to format the data in a more useful form.


The PIC16FA may not offer system clock frequency high enough to sufficiently service the interrupt routine. CMOS Technology file 1. A long range scanner would be very hard to make. When you use too much solder, and two feet are soldered together do not panic.

The EM chip allows us to create a reader with little code or processor resources. The Mod input selects between Read and Write operations. Now the PCB is ready.

Catalog | EM Microelectronic

Hierarchical block is unconnected 3. How do you get an MCU design to market quickly?

As it was suggested – the EM simulation soft can do that. Otherwise it will be ignored. Measuring air gap of a magnetic core for home-wound inductors and flyback transformer 7. Equating complex number interms of the other 6.

I want a receiver side code to receive the data from multiple tags When you open your door with this device, make sure you have a backup option like a key in case there is no power.

The capacitors stabilize the output voltage.