TRF7970A
- Supports Near Field Communication (NFC) Standards NFCIP-1 (ISO/IEC 18092) and NFCIP‑2 (ISO/IEC 21481)
- Completely Integrated Protocol Handling for ISO/IEC 15693, ISO/IEC 18000-3, ISO/IEC 14443 A and B, and FeliCa™
- Integrated Encoders, Decoders, and Data Framing for NFC Initiator, Active and Passive Target Operation for All Three Bit Rates (106 kbps, 212 kbps, 424 kbps), and Card Emulation
- RF Field Detector With Programmable Wake-up Levels for NFC Passive Transponder Emulation Operation
- RF Field Detector for NFC Physical Collision Avoidance
- Integrated State Machine for ISO/IEC 14443 A Anticollision (Broken Bytes) Operation (Transponder Emulation or NFC Passive Target)
- 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)
The TRF7970A device is an integrated analog front end (AFE) and multiprotocol data-framing device for a 13.56-MHz NFC/RFID system supporting all three NFC operation modes – reader/writer, peer-to-peer, and card emulation according to ISO/IEC 14443 A and B, Sony FeliCa, ISO/IEC 15693, NFCIP-1 (ISO/IEC 18092), and NFCIP-2 (ISO/IEC 21481). Built-in programming options make the device suitable for a wide range of applications for NFC, 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 TRF7970A device supports data rates up to 848 kbps with all framing and synchronization tasks for the ISO protocols onboard. The TRF7970A device also supports reader and writer mode for NFC Forum tag types 1, 2, 3, 4, and 5. 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 TRF7970A 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 TRF7970A 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.
The built-in programmable auxiliary voltage regulator delivers up to 20 mA to supply an MCU and additional external circuits within the reader system.
Integrated RF field detector with programmable wake-up levels, eight selectable power modes, and ultra-low power operation enable easy development of robust and cost-efficient designs for long battery life.
Start evaluating the TRF7970A multiprotocol transceiver IC with the DLP-7970ABP.
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DLP-7970ABP — TRF7970A NFC 트랜시버 BoosterPack™ 플러그인 모듈
The third party provider DLP Design NFC/RFID BoosterPack (DLP-7970ABP) is an add-on board designed to fit all of TI’s MCU LaunchPads.
This BoosterPack allows the software application developer to get familiar with the functionalities of TRF7970A Multi-Protocol Fully Integrated 13.56 MHz NFC/ HF RFID (...)
LINUX-NFC-TRF7970A — TRF7970A용 Linux NFC(neard)
SLOC297 — DLP-7970ABP Example Code
지원되는 제품 및 하드웨어
제품
기타 무선 제품
하드웨어 개발
평가 보드
TIDC-EVSE-NFC — EV 충전 스테이션(파일)을 위한 NFC 인증 레퍼런스 디자인
TIDM-NFC-CE — 근거리 무선 통신(NFC) 카드 에뮬레이션 레퍼런스 설계
TIDM-NFC-P2P — NFC 능동형 및 피동형 피어 투 피어 통신 레퍼런스 디자인
TIDM-TM4C129XGATEWAY — Bluetooth® 저에너지, Wi-Fi® 및 Sub-1GHz 노드에 대한 안전한 IoT 게이트웨이 레퍼런스 디자인
CC3200_NFC_CARD_READER — SimpleLink™ Wi-Fi® 지원 NFC 카드 리더
TIDM-NFC-SDM — MIFARE® Classic 및 독점 프로토콜을 지원하는 NFC 트랜시버의 직접 모드
TIDM-NFC-DESFIRE-AES — 근거리 무선 통신(NFC) MIFARE DESFire EV1 태그 인증 레퍼런스 디자인
TIDM-NFC-TRANSCEIVER — 근거리 무선 통신(NFC) 트랜시버 레퍼런스 설계
TIDM-SMARTMETERBOARD3 — 스마트 전기 계량기 개발 플랫폼(SMB)
TIDM-NFC-READER — NFC 및 RFID 초저전력 카드 입력 감지 레퍼런스 디자인
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RHB) | 32 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.