Texas Instruments TRF7960, Manual

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TRF7960
TRF7961
www.ti.com SLOU186F – AUGUST 2006 – REVISED AUGUST 2010
MULTI-STANDARD FULLY INTEGRATED 13.56-MHZ RFID
ANALOG FRONT END AND DATA-FRAMING READER SYSTEM
Check for Samples: TRF7960 , TRF7961
1 Introduction
1.1 Features
12
• Completely Integrated Protocol Handling • Parallel 8-Bit or Serial 4-Pin SPI Interface With
MCU Using 12-Byte FIFO
• Separate Internal High-PSRR Power Supplies
for Analog, Digital, and PA Sections Provide
• Ultra-Small 32-Pin QFN Package
Noise Isolation for Superior Read Range and (5 mm × 5 mm)
Reliability
•
Available Tools
• Dual Receiver Inputs With AM and PM
– Reference Design/EVM With Development
Demodulation to Minimize Communication
Software
Holes
– Source Code Available for MSP430
• Receiver AM and PM RSSI
• Reader-to-Reader Anti-Collision
1.2 APPLICATIONS
•
High Integration Reduces Total BOM and Board
• Secure Access Control
Area
• Product Authentication
– Single External 13.56-MHz Crystal Oscillator
– Printer Ink Cartridges
–
MCU-Selectable Clock-Frequency Output of
RF, RF/2, or RF/4
– Blood Glucose Monitors
– Adjustable 20-mA, High-PSRR LDO for
• Contactless Payment Systems
Powering External MCU
• Medical Systems
• Easy to Use With High Flexibility
– Auto-Configured Default Modes for Each
Supported ISO Protocol
– 12 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 Band-Pass Filter With
User-Selectable Corner Frequencies
• Wide Operating Voltage Range of 2.7 V to 5.5 V
•
Ultra-Low-Power Modes
– Power Down < 1 μ A
– Standby 120 μ A
– Active (Rx only) 10 mA
1.3 Description
The TRF7960/61 is an integrated analog front end and data-framing system for a 13.56-MHz RFID reader
system. Built-in programming options make it suitable for a wide range of applications for proximity and
vicinity RFID systems.
The reader 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.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Tag-it is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006 – 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.