ZHCS762F December   2011  – May 2017 TRF7963A

PRODUCTION DATA.  

  1. 1器件概述
    1. 1.1 特性
    2. 1.2 应用
    3. 1.3 说明
    4. 1.4 应用框图
  2. 2修订历史记录
  3. 3Device Characteristics
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagrams
    2. 4.2 Signal Descriptions
  5. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Electrical Characteristics
    5. 5.5 Thermal Resistance Characteristics
    6. 5.6 Switching Characteristics
  6. 6Detailed Description
    1. 6.1  Functional Block Diagram
    2. 6.2  Power Supplies
    3. 6.3  Supply Arrangements
    4. 6.4  Supply Regulator Settings
    5. 6.5  Power Modes
    6. 6.6  Receiver – Analog Section
      1. 6.6.1 Main and Auxiliary Receiver
      2. 6.6.2 Receiver Gain and Filter Stages
    7. 6.7  Receiver – Digital Section
      1. 6.7.1 Received Signal Strength Indicator (RSSI)
        1. 6.7.1.1 Internal RSSI – Main and Auxiliary Receivers
        2. 6.7.1.2 External RSSI
    8. 6.8  Oscillator Section
    9. 6.9  Transmitter - Analog Section
    10. 6.10 Transmitter - Digital Section
    11. 6.11 Transmitter – External Power Amplifier or Subcarrier Detector
    12. 6.12 Communication Interface
      1. 6.12.1 General Introduction
      2. 6.12.2 FIFO Operation
      3. 6.12.3 Parallel Interface Mode
      4. 6.12.4 Reception of Air Interface Data
      5. 6.12.5 Data Transmission to MCU
      6. 6.12.6 Serial Interface Communication (SPI)
        1. 6.12.6.1 Serial Interface Mode Without Slave Select (SS)
        2. 6.12.6.2 Serial Interface Mode With Slave Select (SS)
      7. 6.12.7 Direct Mode
    13. 6.13 Direct Commands from MCU to Reader
      1. 6.13.1 Command Codes
      2. 6.13.2 Reset FIFO (0x0F)
      3. 6.13.3 Transmission With CRC (0x11)
      4. 6.13.4 Transmission Without CRC (0x10)
      5. 6.13.5 Block Receiver (0x16)
      6. 6.13.6 Enable Receiver (0x17)
      7. 6.13.7 Test Internal RF (RSSI at RX Input With TX On) (0x18)
      8. 6.13.8 Test External RF (RSSI at RX Input With TX Off) (0x19)
      9. 6.13.9 Register Preset
    14. 6.14 Register Description
      1. 6.14.1 Register Overview
        1. 6.14.1.1 Main Configuration Registers
          1. 6.14.1.1.1 Chip Status Control Register (0x00)
          2. 6.14.1.1.2 ISO Control Register (0x01)
        2. 6.14.1.2 Protocol Subsetting Registers
          1. 6.14.1.2.1 ISO14443B TX Options Register (0x02)
          2. 6.14.1.2.2 ISO14443A High-Bit-Rate and Parity Options Register (0x03)
          3. 6.14.1.2.3 TX Pulse Length Control Register (0x06)
          4. 6.14.1.2.4 RX No Response Wait Time Register (0x07)
          5. 6.14.1.2.5 RX Wait Time Register (0x08)
          6. 6.14.1.2.6 Modulator and SYS_CLK Control Register (0x09)
          7. 6.14.1.2.7 RX Special Setting Register (0x0A)
          8. 6.14.1.2.8 Regulator and I/O Control Register (0x0B)
        3. 6.14.1.3 Status Registers
          1. 6.14.1.3.1 IRQ Status Register (0x0C)
          2. 6.14.1.3.2 Collision Position and Interrupt Mask Registers (0x0D and 0x0E)
          3. 6.14.1.3.3 RSSI Levels and Oscillator Status Register (0x0F)
        4. 6.14.1.4 Test Registers
          1. 6.14.1.4.1 Test Register (0x1A)
          2. 6.14.1.4.2 Test Register (0x1B)
        5. 6.14.1.5 FIFO Control Registers
          1. 6.14.1.5.1 FIFO Status Register (0x1C)
          2. 6.14.1.5.2 TX Length Byte1 Register (0x1D) and TX Length Byte2 Register (0x1E)
  7. 7Applications, Implementation, and Layout
    1. 7.1 TRF7963A Reader System Using SPI With SS Mode
      1. 7.1.1 General Application Considerations
      2. 7.1.2 Schematic
    2. 7.2 System Design
      1. 7.2.1 Layout Considerations
      2. 7.2.2 Impedance Matching TX_Out (Pin 5) to 50 Ω
      3. 7.2.3 Reader Antenna Design Guidelines
  8. 8器件和文档支持
    1. 8.1 入门和后续步骤
    2. 8.2 器件命名规则
    3. 8.3 工具和软件
    4. 8.4 文档支持
    5. 8.5 社区资源
    6. 8.6 商标
    7. 8.7 静电放电警告
    8. 8.8 出口管制提示
    9. 8.9 Glossary
  9. 9机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.13.8 Test External RF (RSSI at RX Input With TX Off) (0x19)

This command can be used in active mode when the RF receiver is on but RF output is off. This means bit B1 = 1 in the Chip Status Control register. The level of RF signal received on the antenna is measured and reported in the RSSI Levels register (0x0F). The relation between the 3-bit code and the external RF field strength [A/m] must be determinate by calculation or by experiments for each antenna type, because the antenna Q and connection to the RF input influence the result. Table 6-14 and Section 6.7.1.2 describe the nominal relation between the RF peak-to-peak voltage in the RF_IN1 input and RSSI code, respectively.

NOTE

If the command is executed immediately after power-up and before any communication with tag was performed, the command must be preceded by the Enable RX command. The Check RF commands require full operation, so the receiver must be activated by enable RX or by a normal tag communication for the Check RF command to work properly.

Table 6-14 Test External RF

RF_IN1 (mVP): 40 60 80 100 140 180 300
Decimal Code: 1 2 3 4 5 6 7
Binary Code: 001 010 011 001 101 011 111