TRF7961

Features:

` Completely integrated protocol handling  (OSI Model Layer 3 and below)
` Separate internal high-PSRR power supplies  for analog, digital, and PA sections provides  noise isolation
    for superior read range and reliability
` Dual receiver input with AM and PM design/EVM with development holes (patent pending).holes (patent pending).
` Receiver AM and PM RSSI
` Reader-to-reader anti-collision
` High Integration reduces total BOM and board area
   Single external 13.56 MHz crystal oscillator
   MCU-selectable clock-frequency output of  RF, RF/2, or RF/4
   Adjustable 20 mA, high-PSRR LDO for  powering external MCU
` Easy to use with high flexibility
   Auto-configured default modes for each supported ISO protocol
   11 user-programmable registers
   Selectable receiver gain and AGC
   Programmable output power (100 mW or 200 mW)
   Adjustable ASK Modulation Range (8% to 30%)
   Built in receiver bandpass filter with user selectable corner frequencies
` Wide operating voltage range of 2.7 to 5.5 V
` Ultra-low power modes
   Power down < 1 A
   Standby 120 A
   Active (Rx only) 10 mA
` Parallel 8-Bit or Serial 4-pin SPI interface with MCU using 12-byte FIFO
` Ultra-small 32-pin QFN Package (5x5mm)
` Available tools
   Reference design/EVM with development software
   Source code available for MSP430

Application

` Secure access control
` Product authentication
   Printer ink cartridges
   Blood glucose monitors
` Contactless payment systems



Specifications

		Value	Unit
VIN     Supply voltage		6	V
IO      Output current		150	mA
Continuous power dissipation		See Dissipation Rating Table
TJ	Maximum junction temperature, any condition(2)	140
	Maximum junction temperature, continuous operation, long term reliability(2)	125
Tstg Storage temperature range		55 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds		300
ESDS rating:	HBM (Human Body Model)	2	kV
	CDM (Charge Device Model)	500	V
	MM (Machine Model)	200

(1)  The absolute maximum ratings under any condition is limited by the constraints of the silicon process. 
      Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions
      for extended periods may degrade device reliability. These are stress ratings only and functional operation of
      the device at these or any other conditions beyond those specified are not implied
(2) The maximum junction temperature for continuous operation is limited by package constraints. Operation
     above this temperature may result in reduced reliability and/or lifetime of the device.


Description

The TRF7961is an integrated analog front end & data framing system for a 13.56 MHz RFID reader  system. Built-in programming options make it suitable for a wide range of applications both in  proximity and vicinity RFID systems.

The reader of TRF7961  is configured by selecting the desired  protocol in the control registers. Direct access to all  control registers allows fine tuning of various reader  parameters as needed.