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TRF7964A Datasheet Preview

TRF7964A Datasheet

Multiprotocol Fully Integrated 13.56-MHz RFID Reader and Writer IC

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TRF7964A
SLOS787I – MAY 2012 – REVISED MARCH 2017
TRF7964A Multiprotocol Fully Integrated 13.56-MHz RFID Reader and Writer IC
1 Device Overview
1.1 Features
1
• Completely Integrated Protocol Handling for
ISO/IEC 15693, ISO/IEC 18000-3, ISO/IEC 14443
A and B, and FeliCa™
• Integrated State Machine for ISO/IEC 14443 A
Anticollision (Broken Bytes) Operation
• Input Voltage Range: 2.7 VDC to 5.5 VDC
• Programmable Output Power: +20 dBm (100 mW),
+23 dBm (200 mW)
• Programmable I/O Voltage Levels From 1.8 VDC
to 5.5 VDC
• Programmable System Clock Frequency Output
(RF, RF/2, RF/4) from 13.56-MHz or 27.12-MHz
Crystal or Oscillator
• Integrated Voltage Regulator Output for Other
System Components (MCU, Peripherals,
Indicators), 20 mA (Max)
• Programmable Modulation Depth
• Dual Receiver Architecture With RSSI for
Elimination of "Read Holes" and Adjacent Reader
System or Ambient In-Band Noise Detection
• Programmable Power Modes for Ultra Low-Power
System Design (Power Down <1 µA)
• Parallel or SPI Interface (With 127-Byte FIFO)
• Temperature Range: –40°C to 110°C
• 32-Pin QFN Package (5 mm × 5 mm)
1.2 Applications
• Public Transport or Event Ticketing
• Passport or Payment (POS) Reader Systems
• Product Identification or Authentication
• Medical Equipment or Consumables
• Access Control, Digital Door Locks
1.3 Description
The TRF7964A device is an integrated analog front end (AFE) and multiprotocol data-framing device for a
13.56-MHz NFC/RFID reader and writer system supporting ISO/IEC 14443 A and B, Sony FeliCa, and
ISO/IEC 15693. Pin-to-pin and firmware compatible with the superset device TRF7970A. Built-in
programming options make the device suitable for a wide range of applications for proximity and vicinity
identification systems.
The device 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.
The TRF7964A device supports data rates up to 848 kbps with all framing and synchronization tasks for
the ISO protocols onboard. Other standards and even custom protocols can be implemented by using one
of the direct modes the device offers. These direct modes let the user fully control the AFE and also gain
access to the raw subcarrier data or the unframed, but already ISO-formatted, data and the associated
(extracted) clock signal.
The receiver system has a dual-input receiver architecture to maximize communication robustness. The
receivers also include various automatic and manual gain control options. The received signal strength
from transponders, ambient sources, or internal levels is available in the RSSI register.
A SPI or parallel interface can be used for the communication between the MCU and the TRF7964A
device. When the built-in hardware encoders and decoders are used, transmit and receive functions use a
127-byte FIFO register. For direct transmit or receive functions, the encoders or decoders can be
bypassed so the MCU can process the data in real time.
The TRF7964A device supports a wide supply voltage range of 2.7 V to 5.5 V and data communication
levels from 1.8 V to 5.5 V for the MCU I/O interface.
The transmitter has selectable output power levels of 100 mW (+20 dBm) or 200 mW (+23 dBm)
equivalent into a 50-Ω load when using a 5-V supply and supports OOK and ASK modulation with
selectable modulation depth.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




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TRF7964A Datasheet Preview

TRF7964A Datasheet

Multiprotocol Fully Integrated 13.56-MHz RFID Reader and Writer IC

No Preview Available !

TRF7964A
SLOS787I – MAY 2012 – REVISED MARCH 2017
www.ti.com
The built-in programmable auxiliary voltage regulator delivers up to 20 mA to supply an MCU and
additional external circuits within the reader system.
Start evaluating the TRF7964A multiprotocol transceiver IC with the TRF7970AEVM, TRF7970ATB, or
DLP-7970ABP of the superset device.
PART NUMBER
TRF7964ARHB
Device Information
PACKAGE
VQFN (32)
1.4 Functional Block Diagram
Figure 1-1 shows the block diagram.
BODY SIZE
5 mm × 5 mm
RX_IN1
RX_IN2
VDD_PA
TX_OUT
VSS_PA
EN
EN2
ASK/OOK
MOD
OSC_IN
OSC_OUT
MUX
Phase and
Amplitude
Detector
RF Level
Detector
RSSI
(External)
Phase and
Amplitude
Detector
Transmitter
Analog Front End
Digital Control
State Machine
Crystal or Oscillator
Timing System
Gain
RSSI
(AUX)
Gain
RSSI
(Main)
Filter
and AGC
ISO
Protocol
Handling
Framing
Digitizer
Decoder
Bit
Framing
Serial
Conversion
CRC and Parity
Logic
State
Control
Logic
(Control
Registers and
Command
Logic)
MCU
Interface
127-Byte
FIFO
Voltage Supply Regulator Systems
(Supply Regulators and Reference Voltages)
VDD_I/O
I/O_0
I/O_1
I/O_2
I/O_3
I/O_4
I/O_5
I/O_6
I/O_7
IRQ
SYS_CLK
DATA_CLK
VIN
VDD_A
BAND_GAP
VSS_A
VDD_RF
VSS_RF
VDD_X
VSS
VSS_D
Copyright © 2017, Texas Instruments Incorporated
Figure 1-1. Block Diagram
2 Device Overview
Submit Documentation Feedback
Product Folder Links: TRF7964A
Copyright © 2012–2017, Texas Instruments Incorporated


Part Number TRF7964A
Description Multiprotocol Fully Integrated 13.56-MHz RFID Reader and Writer IC
Maker etcTI
Total Page 30 Pages
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