SCBS881E January   2010  – October 2018 TMS3705

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Characteristics
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Signal Descriptions
      1. Table 4-1 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 for D (SOIC) Package
    6. 5.6 Switching Characteristics
    7. 5.7 Timing Diagrams
  6. 6Detailed Description
    1. 6.1  Power Supply
    2. 6.2  Oscillator
    3. 6.3  Predrivers
    4. 6.4  Full Bridge
    5. 6.5  RF Amplifier
    6. 6.6  Band-Pass Filter and Limiter
    7. 6.7  Diagnosis
    8. 6.8  Power-on Reset
    9. 6.9  Frequency Divider
    10. 6.10 Digital Demodulator
    11. 6.11 Transponder Resonance-Frequency Measurement
    12. 6.12 SCI Encoder
    13. 6.13 Control Logic
    14. 6.14 Test Pins
  7. 7Applications, Implementation, and Layout
    1. 7.1 Application Diagram
  8. 8Device and Documentation Support
    1. 8.1 Getting Started and Next Steps
    2. 8.2 Device Nomenclature
    3. 8.3 Tools and Software
    4. 8.4 Documentation Support
    5. 8.5 Community Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Export Control Notice
    9. 8.9 Glossary
  9. 9Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Switching Characteristics

VDD = 4.5 V to 5.5 V, fosc = 4 MHz, F_SEL = high, over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
tinit min Time for TXCT high to initialize a new transmission From start of the oscillator after power on or waking up until reaching the Idle state (see Figure 5-1, Figure 5-2, Figure 5-3) 2 2.05 2.2 ms
tdiag Delay between leaving Idle state and start of diagnosis byte at SCIO Normal operation (see Figure 5-1, Figure 5-2, Figure 5-3) 2 2.12 2.2 ms
tR Delay between end of charge or end of program and start of transponder data transmit on SCIO See Figure 5-1, Figure 5-2, Figure 5-3. 3 ms
toff Write pulse pause See Figure 5-5. 0.1 ms
tdwrite Signal delay on TXCT for controlling the full bridge Write mode 73 79 85 µs
tmcr NRZ bit duration for mode control register See Figure 5-4. 121 128 135 µs
tsci NRZ bit duration on SCIO Asynchronous mode (see Figure 5-6) 63 64 65 µs
tdstop Low signal delay on TXCT to stop Synchronous mode 128 800 µs
tt_sync Total TXCT time for reading data on SCIO Synchronous mode (see Figure 5-7) 900 µs
tsync TXCT period for shifting data on SCIO Synchronous mode (seeFigure 5-7) 4 64 100 µs
tL_sync Low phase on TXCT Synchronous mode (see Figure 5-7) 2 32 tsync – 2 µs
tready Data ready for output after SCIO goes high Synchronous mode (see Figure 5-7) 1 127 µs