TRF7960, TRF7961 Multi-Standard Fully Integrated 13.56-MHz RFID Analog Front End (Rev. F)0 pages

TRF7960
TRF7961
SLOU186F – AUGUST 2006 – REVISED AUGUST 2010
www.ti.com
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
• Separate Internal High-PSRR Power Supplies
for Analog, Digital, and PA Sections Provide
Noise Isolation for Superior Read Range and
Reliability
• Dual Receiver Inputs With AM and PM
Demodulation to Minimize Communication
Holes
• 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
– 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 μA
– Standby 120 μA
– Active (Rx only) 10 mA
1.3
• Parallel 8-Bit or Serial 4-Pin SPI Interface With
MCU Using 12-Byte FIFO
• Ultra-Small 32-Pin QFN Package
(5 mm × 5 mm)
• Available Tools
– Reference Design/EVM With Development
Software
– Source Code Available for MSP430
1.2
•
•
•
•
APPLICATIONS
Secure Access Control
Product Authentication
– Printer Ink Cartridges
– Blood Glucose Monitors
Contactless Payment Systems
Medical Systems
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
2
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