MAX98372 datasheet(4/100 Pages) MAXIM

4 / 100 page

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Maxim Integrated │ 4

MAX98372

Digital Input Class D Amplifier

with DHT and Brownout Protection

LIST OF FIGURES

Figure 1. I2S Audio Interface Timing Diagram....................................................... 14

Figure 2. Left-Justified Audio Interface Timing Diagram............................................... 14

Figure 3.TDM Audio Interface Timing Diagrams ..................................................... 14

Figure 4. I2C Interface Timing Diagram............................................................ 16

Figure 5. I2S Digital Audio Format Examples ....................................................... 48

Figure 6. Left-Justified Digital Audio Format Examples ............................................... 49

Figure 7. TDM Digital Audio Format Examples ...................................................... 50

Figure 8. Example of Dynamic Headroom Tracking in Mode 1 Operation ................................. 55

Figure 9. Example of Dynamic Headroom Tracking in Mode 2 Operation with a High RP..................... 56

Figure 10. Example of Dynamic Headroom Tracking in Mode 2 Operation with a Low RP .................... 57

Figure 11. Example of Dynamic Headroom Tracking in Mode 3a Operation ............................... 58

Figure 12. Example of Dynamic Headroom Tracking in Mode 3b Operation ............................... 59

Figure 13. Example of Dynamic Headroom Tracking in Mode 3b with Limiter .............................. 60

Figure 14. Dynamic Headroom Tracking Attack Functionality........................................... 61

Figure 15. Thermal Foldback Performance ......................................................... 66

Figure 16. ALC Example 1: Battery Drops Below Brownout Threshold and Quickly Recovers ................. 67

Figure 17. ALC Example 2: Battery Drops Below Brownout Threshold and Stays Low ....................... 68

Figure 18. ALC Example 3: Battery Drops Below Brownout Threshold and Stays Long Enough for the Amp to Mute

(Non-Infinite Hold Time)........................................................................ 69

Figure 19. ALC Example 4: Battery Drops Below Brownout Threshold and Stays Long Enough for the Amp to Mute

(Infinite Hold Time)............................................................................ 70

Figure 20. ALC Example 5: Immediate Attenuation................................................... 71

Figure 21. DOUT Data Structure ................................................................. 75

Figure 22. Single Data Drive .................................................................... 77

Figure 23. Double Data Drive illustration........................................................... 77

Figure 24. EMI Plot 1: 12in, 8Ω, 16V, ½ Power, No Ferrite Bead, Edge Rate +15%.......................... 84

Figure 25. EMI Plot 2: 12in, 4Ω, 16V, ½ Power, No Ferrite Bead, Edge Rate +15%.......................... 84

Figure 26. EMI Plot 3: 12in, 8Ω, 16V, ½ Power, Ferrite Bead ........................................... 85

Figure 27. EMI Plot 4: 12in, 4Ω, 16V, ½ Power, Ferrite Bead ........................................... 85

Figure 28. Typical Application Circuit with Ferrites Beads Used......................................... 87

Figure 29. THD Performance Improvement Enabled by Remote Sensing ................................. 87

Figure 30. START, STOP, and REPEATED START Conditions ......................................... 89

Figure 31. Acknowledge........................................................................ 90

Figure 32. Writing One Byte of Data to the MAX98372 ............................................... 90

Figure 33. n-Bytes of Data to the MAX98372 ....................................................... 90

Figure 34. Reading One Byte of Data from the MAX98372 ............................................ 91

Figure 35. Reading n-Bytes of Data from the MAX98372.............................................. 91

Figure 36. MAX98372+ WLP Ball Dimensions ...................................................... 93

MAX98372 Datasheet(PDF) 4 Page - Maxim Integrated Products

MAX98372 Datasheet(HTML) 4 Page - Maxim Integrated Products

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