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TRF7962A Fully Integrated 13.56-MHz RFID Reader/Writer IC For ISO/IEC 15693 and ISO/IEC 18000-3 Standards
SLOS757G
December 2011 – March 2020
TRF7962A
PRODUCTION DATA.
CONTENTS
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TRF7962A Fully Integrated 13.56-MHz RFID Reader/Writer IC For ISO/IEC 15693 and ISO/IEC 18000-3 Standards
1
Device Overview
1.1
Features
1.2
Applications
1.3
Description
1.4
Application Block Diagram
2
Revision History
3
Device Characteristics
3.1
Related Products
4
Terminal Configuration and Functions
4.1
Pin Diagrams
4.2
Signal Descriptions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Electrical Characteristics
5.5
Thermal Resistance Characteristics
5.6
Switching Characteristics
6
Detailed Description
6.1
Functional Block Diagram
6.2
Power Supplies
6.3
Supply Arrangements
6.4
Supply Regulator Settings
6.5
Power Modes
6.6
Receiver – Analog Section
6.6.1
Main and Auxiliary Receiver
6.6.2
Receiver Gain and Filter Stages
6.7
Receiver – Digital Section
6.7.1
Received Signal Strength Indicator (RSSI)
6.7.1.1
Internal RSSI – Main and Auxiliary Receivers
6.7.1.2
External RSSI
6.8
Oscillator Section
6.9
Transmitter - Analog Section
6.10
Transmitter - Digital Section
6.11
Transmitter – External Power Amplifier or Subcarrier Detector
6.12
Communication Interface
6.12.1
General Introduction
6.12.2
FIFO Operation
6.12.3
Parallel Interface Mode
6.12.4
Reception of Air Interface Data
6.12.5
Data Transmission to MCU
6.12.6
Serial Interface Communication (SPI)
6.12.6.1
Serial Interface Mode Without Slave Select (SS)
6.12.6.2
Serial Interface Mode With Slave Select (SS)
6.12.7
Direct Mode
6.13
Direct Commands from MCU to Reader
6.13.1
Command Codes
6.13.2
Reset FIFO (0x0F)
6.13.3
Transmission With CRC (0x11)
6.13.4
Transmission Without CRC (0x10)
6.13.5
Transmit Next Time Slot (0x14)
6.13.6
Block Receiver (0x16)
6.13.7
Enable Receiver (0x17)
6.13.8
Test Internal RF (RSSI at RX Input With TX On) (0x18)
6.13.9
Test External RF (RSSI at RX Input With TX Off) (0x19)
6.13.10
Register Preset
6.14
Register Description
6.14.1
Register Overview
6.14.1.1
Main Configuration Registers
6.14.1.1.1
Chip Status Control Register (0x00)
6.14.1.1.2
ISO Control Register (0x01)
6.14.1.2
Protocol Subsetting Registers
6.14.1.2.1
TX Pulse Length Control Register (0x06)
6.14.1.2.2
RX No Response Wait Time Register (0x07)
6.14.1.2.3
RX Wait Time Register (0x08)
6.14.1.2.4
Modulator and SYS_CLK Control Register (0x09)
6.14.1.2.5
RX Special Setting Register (0x0A)
6.14.1.2.6
Regulator and I/O Control Register (0x0B)
6.14.1.3
Status Registers
6.14.1.3.1
IRQ Status Register (0x0C)
6.14.1.3.2
Collision Position and Interrupt Mask Registers (0x0D and 0x0E)
6.14.1.3.3
RSSI Levels and Oscillator Status Register (0x0F)
6.14.1.4
Test Registers
6.14.1.4.1
Test Register (0x1A)
6.14.1.4.2
Test Register (0x1B)
6.14.1.5
FIFO Control Registers
6.14.1.5.1
FIFO Status Register (0x1C)
6.14.1.5.2
TX Length Byte1 Register (0x1D) and TX Length Byte2 Register (0x1E)
7
Applications, Implementation, and Layout
7.1
TRF7962A Reader System Using SPI With SS Mode
7.1.1
General Application Considerations
7.1.2
Schematic
7.2
System Design
7.2.1
Layout Considerations
7.2.2
Impedance Matching TX_Out (Pin 5) to 50 Ω
7.2.3
Reader Antenna Design Guidelines
8
Device and Documentation Support
8.1
Getting Started and Next Steps
8.2
Device Nomenclature
8.3
Tools and Software
8.4
Documentation Support
8.5
Support Resources
8.6
Trademarks
8.7
Electrostatic Discharge Caution
8.8
Export Control Notice
8.9
Glossary
9
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RHB|32
MPQF130D
Thermal pad, mechanical data (Package|Pins)
RHB|32
QFND029X
Orderable Information
slos757g_oa
slos757g_pm
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DATA SHEET
TRF7962A Fully Integrated 13.56-MHz RFID Reader/Writer IC For ISO/IEC 15693 and ISO/IEC 18000-3 Standards
1
Device Overview