SDAA058 September   2025 TDP0604

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Test Setup
    1. 2.1 Block Diagram
    2. 2.2 Aardvark I2C and SPI Controller
    3. 2.3 EDID Emulator
    4. 2.4 Enable TDP0604 in I2C Mode and Set Target I2C Address
  6. 3TDP0604 Controls for HDMI Compliance Testing
    1. 3.1 Data Eye Diagram in Different EQ
      1. 3.1.1 HDMI2.0 Test with Resolution 4096 × 2160_60p_8bit_444
        1. 3.1.1.1 D1 NegativeLane, EQ = 0
        2. 3.1.1.2 D1 NegativeLane, EQ = 4
        3. 3.1.1.3 D1 NegativeLane, EQ = F
      2. 3.1.2 HDMI1.4 Test with Resolution 4096 × 2160_30p_8bit_444
        1. 3.1.2.1 Source Eye Diagram: CK - D1, EQ = 0
        2. 3.1.2.2 Source Eye Diagram: CK - D1, EQ = 4
        3. 3.1.2.3 Source Eye Diagram: CK - D1, EQ = F
      3. 3.1.3 HDMI1.4 Test with Resolution 720 × 480_60p_8bit_444
        1. 3.1.3.1 Source Eye Diagram: CK - D1, EQ=0
        2. 3.1.3.2 Source Eye Diagram: CK - D1, EQ = 4
        3. 3.1.3.3 Source Eye Diagram: CK - D1, EQ = F
    2. 3.2 Rising and Falling Resulting in Different Slew Rates
      1. 3.2.1 HDMI2.0 Test with Resolution 4096 × 2160_60p_8bit_444
        1. 3.2.1.1 TRISE, TFALL when SLEW_3G =3h, SLEW_6G=0h, SLEW_CLK 0 =0h
        2. 3.2.1.2 TRISE, TFALL when SLEW_3G =3h, SLEW_6G=1h, SLEW_CLK 0 =1h
        3. 3.2.1.3 TRISE, TFALL when SLEW_3G =3h, SLEW_6G=7h, SLEW_CLK 0 =7h
      2. 3.2.2 HDMI1.4 Test with Resolution 4096 × 2160_30p_8bit_444
      3. 3.2.3 TRISE, TFALL when SLEW_3G =0h, SLEW_6G=1h, SLEW_CLK 0 =0h
      4. 3.2.4 TRISE, TFALL when SLEW_3G =3h, SLEW_6G=1h, SLEW_CLK 0 =1h
      5. 3.2.5 TRISE, TFALL when SLEW_3G =7h, SLEW_6G=1h, SLEW_CLK 0 =7h
      6. 3.2.6 HDMI1.4 Test with Resolution 720 × 480_60p_8bit_444
        1. 3.2.6.1 TRISE, TFALL when SLEW_3G = 0h, SLEW_6G = 1h, SLEW_CLK 0 = 0h
        2. 3.2.6.2 TRISE, TFALL when SLEW_3G = 3h, SLEW_6G = 1h, SLEW_CLK 0 = 1h
        3. 3.2.6.3 TRISE, TFALL when SLEW_3G = 7h, SLEW_6G = 1h, SLEW_CLK 0 = 7h
    3. 3.3 VL and VSwing
      1. 3.3.1 HDMI2.0 Test with Resolution 4096 × 2160_60p_8bit_444
        1. 3.3.1.1 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD =0h
        2. 3.3.1.2 VL and VSwing with HDMI20_VOD =1h (default 1000mV), HDMI14_VOD =1h (default 1000mV)
        3. 3.3.1.3 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD =0h
      2. 3.3.2 HDMI1.4 Test with Resolution 4096 x 2160_30p_8bit_444
        1. 3.3.2.1 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD = 0h, Use Values in CLK_VOD, D0_VOD, D1_VOD and D2_VOD = 0h, Limited -15%
        2. 3.3.2.2 VL and VSwing with HDMI20_VOD =1h (Default 1000mV), HDMI14_VOD =1h (Default 1000mV)
        3. 3.3.2.3 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD =0h, Use values in CLK_VOD, D0_VOD, D1_VOD and D2_VOD = 7h, Limited +20%)
      3. 3.3.3 HDMI1.4 Test with Resolution 720 x 480_60p_8bit_444
        1. 3.3.3.1 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD =0h,Use values in CLK_VOD, D0_VOD, D1_VOD and D2_VOD = 0h, Limited -15%)
        2. 3.3.3.2 VL and VSwing with HDMI20_VOD =1h (default 1000mV), HDMI14_VOD =1h (default 1000mV)
        3. 3.3.3.3 VL and VSwing with HDMI20_VOD =0h, HDMI14_VOD =0h, use values in CLK_VOD, D0_VOD, D1_VOD and D2_VOD = 7h, Limited +20%)
    4. 3.4 HDMI1.4-2.0 Pass Compliance Test Pass Result
      1. 3.4.1 HDMI2.0 Test with Resolution 4096x2160_60p_8bit_444
      2. 3.4.2 HDMI1.4 Test With Resolution 4096 × 2160_30p_8bit_444
      3. 3.4.3 HDMI1.4 Test with Resolution 720 x 480_60p_8bit_444
  7. 4Tips
  8. 5Summary
  9. 6References

1 Introduction

This application note discusses how to perform the HDMI electrical compliance test and adjusts several TDP0604 registers such as equalization (EQ), differential output voltage (VoD), and slew rate to obtain different and ultimately passing results. The application note also provides a TDP0604 I2C control script example.