SLOSE75B February   2022  – March 2023 TAS2780

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Timing Requirements
    7. 6.7 TDM Port Timing Requirements
    8. 6.8 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1  Overview
    2. 8.2  Functional Block Diagram
    3. 8.3  Feature Description
      1. 8.3.1 Device Address Selection
      2. 8.3.2 Register Organization
    4. 8.4  Device Functional Modes
      1. 8.4.1  TDM Port
      2. 8.4.2  Playback Signal Path
        1. 8.4.2.1  High Pass Filter
        2. 8.4.2.2  Amplifier Inversion
        3. 8.4.2.3  Digital Volume Control and Amplifier Output Level
          1. 8.4.2.3.1 Safe Mode
        4. 8.4.2.4  VBAT1S Supply
        5. 8.4.2.5  Low Voltage Signaling (LVS)
        6. 8.4.2.6  Y-Bridge
        7. 8.4.2.7  Noise Gate
        8. 8.4.2.8  Supply Tracking Limiter with Brown Out Prevention
          1. 8.4.2.8.1 Supply Tracking Limiter (STL)
          2. 8.4.2.8.2 Brownout Prevention (BOP)
        9. 8.4.2.9  Low Battery Tracking Limiter (LBTL)
        10. 8.4.2.10 Inter Chip Gain Alignment (ICGA)
          1. 8.4.2.10.1 Inter-Chip Communication (ICC) Pin
        11. 8.4.2.11 Class-D Settings
          1. 8.4.2.11.1 Synchronization
          2. 8.4.2.11.2 Output Slew Rate Control
      3. 8.4.3  SAR ADC
      4. 8.4.4  Current and Voltage (IV) Sense
      5. 8.4.5  Post Filter Feed-Back (PFFB)
      6. 8.4.6  Load Diagnostics
      7. 8.4.7  Thermal Foldback
      8. 8.4.8  Over Power Protection
      9. 8.4.9  Low Battery Protection
      10. 8.4.10 Clocks and PLL
      11. 8.4.11 Ultrasonic
      12. 8.4.12 Echo Reference
    5. 8.5  Operational Modes
      1. 8.5.1 Hardware Shutdown
      2. 8.5.2 Mode Control and Software Reset
      3. 8.5.3 Software Shutdown
      4. 8.5.4 Mute Mode
      5. 8.5.5 Active Mode
      6. 8.5.6 Diagnostic Mode
      7. 8.5.7 Noise Gate Mode
    6. 8.6  Faults and Status
      1. 8.6.1 Faults and Status Over TDM
      2. 8.6.2 Temperature Warnings
    7. 8.7  Power Sequencing Requirements
    8. 8.8  Digital Input Pull Downs
    9. 8.9  Register Map
      1. 8.9.1   Register Summary Table Page=0x00
      2. 8.9.2   Register Summary Table Page=0x01
      3. 8.9.3   Register Summary Table Page=0x04
      4. 8.9.4   Register Summary Table Page=0xFD
      5. 8.9.5   Note and Legend
      6. 8.9.6   PAGE (page=0x00 address=0x00) [reset=00h]
      7. 8.9.7   SW_RESET (page=0x00 address=0x01) [reset=00h]
      8. 8.9.8   MODE_CTRL (page=0x00 address=0x02) [reset=1Ah]
      9. 8.9.9   CHNL_0 (page=0x00 address=0x03) [reset=28h]
      10. 8.9.10  DC_BLK0 (page=0x00 address=0x04) [reset=21h]
      11. 8.9.11  DC_BLK1 (page=0x00 address=0x05) [reset=41h]
      12. 8.9.12  MISC_CFG1 (page=0x00 address=0x06) [reset=00h]
      13. 8.9.13  MISC_CFG2 (page=0x00 address=0x07) [reset=20h]
      14. 8.9.14  TDM_CFG0 (page=0x00 address=0x08) [reset=09h]
      15. 8.9.15  TDM_CFG1 (page=0x00 address=0x09) [reset=02h]
      16. 8.9.16  TDM_CFG2 (page=0x00 address=0x0A) [reset=0Ah]
      17. 8.9.17  LIM_MAX_ATTN (page=0x00 address=0x0B) [reset=80h]
      18. 8.9.18  TDM_CFG3 (page=0x00 address=0x0C) [reset=10h]
      19. 8.9.19  TDM_CFG4 (page=0x00 address=0x0D) [reset=13h]
      20. 8.9.20  TDM_CFG5 (page=0x00 address=0x0E) [reset=42h]
      21. 8.9.21  TDM_CFG6 (page=0x00 address=0x0F) [reset=40h]
      22. 8.9.22  TDM_CFG7 (page=0x00 address=0x10) [reset=04h]
      23. 8.9.23  TDM_CFG8 (page=0x00 address=0x11) [reset=05h]
      24. 8.9.24  TDM_CFG9 (page=0x00 address=0x12) [reset=06h]
      25. 8.9.25  TDM_CFG10 (page=0x00 address=0x13) [reset=08h]
      26. 8.9.26  TDM_CFG11 (page=0x00 address=0x14) [reset=0Ah]
      27. 8.9.27  ICC_CNFG2 (page=0x00 address=0x15) [reset=00h]
      28. 8.9.28  TDM_CFG12 (page=0x00 address=0x16) [reset=12h]
      29. 8.9.29  ICLA_CFG0 (page=0x00 address=0x17) [reset=0Ch]
      30. 8.9.30  ICLA_CFG1 (page=0x00 address=0x18) [reset=00h]
      31. 8.9.31  DG_0 (page=0x00 address=0x19) [reset=0Dh]
      32. 8.9.32  DVC (page=0x00 address=0x1A) [reset=00h]
      33. 8.9.33  LIM_CFG0 (page=0x00 address=0x1B) [reset=62h]
      34. 8.9.34  LIM_CFG1 (page=0x00 address=0x1C) [reset=32h]
      35. 8.9.35  BOP_CFG0 (page=0x00 address=0x1D) [reset=40h]
      36. 8.9.36  BOP_CFG1 (page=0x00 address=0x1E) [reset=32h]
      37. 8.9.37  BOP_CFG2 (page=0x00 address=0x1F) [reset=02h]
      38. 8.9.38  BOP_CFG3 (page=0x00 address=0x20) [reset=06h]
      39. 8.9.39  BOP_CFG4 (page=0x00 address=0x21) [reset=2Ch]
      40. 8.9.40  BOP_CFG5 (page=0x00 address=0x22) [reset=4Ch]
      41. 8.9.41  BOP_CFG6 (page=0x00 address=0x23) [reset=20h]
      42. 8.9.42  BOP_CFG7 (page=0x00 address=0x24) [reset=02h]
      43. 8.9.43  BOP_CFG8 (page=0x00 address=0x25) [reset=06h]
      44. 8.9.44  BOP_CFG9 (page=0x00 address=0x26) [reset=32h]
      45. 8.9.45  BOP_CFG10 (page=0x00 address=0x27) [reset=46h]
      46. 8.9.46  BOP_CFG11 (page=0x00 address=0x28) [reset=20h]
      47. 8.9.47  BOP_CFG12 (page=0x00 address=0x29) [reset=02h]
      48. 8.9.48  BOP_CFG13 (page=0x00 address=0x2A) [reset=06h]
      49. 8.9.49  BOP_CFG14 (page=0x00 address=0x2B) [reset=38h]
      50. 8.9.50  BOP_CFG15 (page=0x00 address=0x2C) [reset=40h]
      51. 8.9.51  BOP_CFG17 (page=0x00 address=0x2D) [reset=20h]
      52. 8.9.52  BOP_CFG18 (page=0x00 address=0x2E) [reset=02h]
      53. 8.9.53  BOP_CFG19 (page=0x00 address=0x2F) [reset=06h]
      54. 8.9.54  BOP_CFG20 (page=0x00 address=0x30) [reset=3Eh]
      55. 8.9.55  BOP_CFG21 (page=0x00 address=0x31) [reset=37h]
      56. 8.9.56  BOP_CFG22 (page=0x00 address=0x32) [reset=20h]
      57. 8.9.57  BOP_CFG23 (page=0x00 address=0x33) [reset=FFh]
      58. 8.9.58  BOP_CFG24 (page=0x00 address=0x34) [reset=E6h]
      59. 8.9.59  NG_CFG0 (page=0x00 address=0x35) [reset=BDh]
      60. 8.9.60  NG_CFG1 (page=0x00 address=0x36) [reset=ADh]
      61. 8.9.61  LVS_CFG0 (page=0x00 address=0x37) [reset=A8h]
      62. 8.9.62  DIN_PD (page=0x00 address=0x38) [reset=03h]
      63. 8.9.63  INT_MASK0 (page=0x00 address=0x3B) [reset=FCh]
      64. 8.9.64  INT_MASK1 (page=0x00 address=0x3C) [reset=BFh]
      65. 8.9.65  INT_MASK4 (page=0x00 address=0x3D) [reset=DFh]
      66. 8.9.66  INT_MASK2 (page=0x00 address=0x40) [reset=F6h]
      67. 8.9.67  INT_MASK3 (page=0x00 address=0x41) [reset=00h]
      68. 8.9.68  INT_LIVE0 (page=0x00 address=0x42) [reset=00h]
      69. 8.9.69  INT_LIVE1 (page=0x00 address=0x43) [reset=00h]
      70. 8.9.70  INT_LIVE1_0 (page=0x00 address=0x44) [reset=00h]
      71. 8.9.71  INT_LIVE2 (page=0x00 address=0x47) [reset=00h]
      72. 8.9.72  INT_LIVE3 (page=0x00 address=0x48) [reset=00h]
      73. 8.9.73  INT_LTCH0 (page=0x00 address=0x49) [reset=00h]
      74. 8.9.74  INT_LTCH1 (page=0x00 address=0x4A) [reset=00h]
      75. 8.9.75  INT_LTCH1_0 (page=0x00 address=0x4B) [reset=00h]
      76. 8.9.76  INT_LTCH2 (page=0x00 address=0x4F) [reset=00h]
      77. 8.9.77  INT_LTCH3 (page=0x00 address=0x50) [reset=00h]
      78. 8.9.78  INT_LTCH4 (page=0x00 address=0x51) [reset=00h]
      79. 8.9.79  VBAT_MSB (page=0x00 address=0x52) [reset=00h]
      80. 8.9.80  VBAT_LSB (page=0x00 address=0x53) [reset=00h]
      81. 8.9.81  PVDD_MSB (page=0x00 address=0x54) [reset=00h]
      82. 8.9.82  PVDD_LSB (page=0x00 address=0x55) [reset=00h]
      83. 8.9.83  TEMP (page=0x00 address=0x56) [reset=00h]
      84. 8.9.84  INT_CLK_CFG (page=0x00 address=0x5C) [reset=19h]
      85. 8.9.85  MISC_CFG3 (page=0x00 address=0x5D) [reset=80h]
      86. 8.9.86  CLOCK_CFG (page=0x00 address=0x60) [reset=0Dh]
      87. 8.9.87  IDLE_IND (page=0x00 address=0x63) [reset=48]
      88. 8.9.88  SAR_SAMP (page=0x00 address=0x64) [reset=84h]
      89. 8.9.89  MISC_CFG4 (page=0x00 address=0x65) [reset=08]
      90. 8.9.90  IDLE_CFG (page=0x00 address=0x67) [reset=00h]
      91. 8.9.91  CLK_CFG (page=0x00 address=0x68) [reset=7Fh]
      92. 8.9.92  LV_EN_CFG (page=0x00 address=0x6A) [reset=12h]
      93. 8.9.93  NG_CFG2 (page=0x00 address=0x6B) [reset=43h]
      94. 8.9.94  NG_CFG3 (page=0x00 address=0x6C) [reset=00h]
      95. 8.9.95  NG_CFG4 (page=0x00 address=0x6D) [reset=00h]
      96. 8.9.96  NG_CFG5 (page=0x00 address=0x6E) [reset=1Ah]
      97. 8.9.97  NG_CFG6 (page=0x00 address=0x6F) [reset=00h]
      98. 8.9.98  NG_CFG7 (page=0x00 address=0x70) [reset=96h]
      99. 8.9.99  PVDD_UVLO (page=0x00 address=0x71) [reset=02h]
      100. 8.9.100 DMD (page=0x00 address=0x73) [reset=00h]
      101. 8.9.101 I2C_CKSUM (page=0x00 address=0x7E) [reset=00h]
      102. 8.9.102 BOOK (page=0x00 address=0x7F) [reset=00h]
      103. 8.9.103 INIT_0 (page=0x01 address=0x17) [reset=D0h]
      104. 8.9.104 LSR (page=0x01 address=0x19) [reset=40h]
      105. 8.9.105 INIT_1 (page=0x01 address=0x21) [reset=08h]
      106. 8.9.106 INIT_2 (page=0x01 address=0x35) [reset=75h]
      107. 8.9.107 INT_LDO (page=0x01 address=0x36) [reset=08h]
      108. 8.9.108 SDOUT_HIZ_1 (page=0x01 address=0x3D) [reset=00h]
      109. 8.9.109 SDOUT_HIZ_2 (page=0x01 address=0x3E) [reset=00h]
      110. 8.9.110 SDOUT_HIZ_3 (page=0x01 address=0x3F) [reset=00h]
      111. 8.9.111 SDOUT_HIZ_4 (page=0x01 address=0x40) [reset=00h]
      112. 8.9.112 SDOUT_HIZ_5 (page=0x01 address=0x41) [reset=00h]
      113. 8.9.113 SDOUT_HIZ_6 (page=0x01 address=0x42) [reset=00h]
      114. 8.9.114 SDOUT_HIZ_7 (page=0x01 address=0x43) [reset=00h]
      115. 8.9.115 SDOUT_HIZ_8 (page=0x01 address=0x44) [reset=00h]
      116. 8.9.116 SDOUT_HIZ_9 (page=0x01 address=0x45) [reset=00h]
      117. 8.9.117 TG_EN (page=0x01 address=0x47) [reset=AB]
      118. 8.9.118 EDGE_CTRL (page=0x01 address=0x4C) [reset=00h]
      119. 8.9.119 DG_DC_VAL1 (page=0x04 address=0x08) [reset=40h]
      120. 8.9.120 DG_DC_VAL2 (page=0x04 address=0x09) [reset=26h]
      121. 8.9.121 DG_DC_VAL3 (page=0x04 address=0x0A) [reset=40h]
      122. 8.9.122 DC_DG_VAL4 (page=0x04 address=0x0B) [reset=00h]
      123. 8.9.123 LIM_TH_MAX1 (page=0x04 address=0x0C) [reset=68h]
      124. 8.9.124 LIM_TH_MAX2 (page=0x04 address=0x0D) [reset=00h]
      125. 8.9.125 LIM_TH_MAX3 (page=0x04 address=0x0E) [reset=00h]
      126. 8.9.126 LIM_TH_MAX4 (page=0x04 address=0x0F) [reset=00h]
      127. 8.9.127 LIM_TH_MIN1 (page=0x04 address=0x10) [reset=28h]
      128. 8.9.128 LIM_TH_MIN2 (page=0x04 address=0x11) [reset=00h]
      129. 8.9.129 LIM_TH_MIN3 (page=0x04 address=0x12) [reset=00h]
      130. 8.9.130 LIM_TH_MIN4 (page=0x04 address=0x13) [reset=00h]
      131. 8.9.131 LIM_INF_PT1 (page=0x04 address=0x14) [reset=56h]
      132. 8.9.132 LIM_INF_PT2 (page=0x04 address=0x15) [reset=66h]
      133. 8.9.133 LIM_INF_PT3 (page=0x04 address=0x16) [reset=66h]
      134. 8.9.134 LIM_INF_PT4 (page=0x04 address=0x17) [reset=00h]
      135. 8.9.135 LIM_SLOPE1 (page=0x04 address=0x18) [reset=10h]
      136. 8.9.136 LIM_SLOPE2 (page=0x04 address=0x19) [reset=00h]
      137. 8.9.137 LIM_SLOPE3 (page=0x04 address=0x1A) [reset=00h]
      138. 8.9.138 LIM_SLOPE4 (page=0x04 address=0x1B) [reset=00h]
      139. 8.9.139 TF_HLD1 (page=0x04 address=0x1C) [reset=00h]
      140. 8.9.140 TF_HLD2 (page=0x04 address=0x1D) [reset=00h]
      141. 8.9.141 TF_HLD3 (page=0x04 address=0x1E) [reset=64h]
      142. 8.9.142 TF_HLD4 (page=0x04 address=0x1F) [reset=00h]
      143. 8.9.143 TF_RLS1 (page=0x04 address=0x20) [reset=40h]
      144. 8.9.144 TF_RLS2 (page=0x04 address=0x21) [reset=BDh]
      145. 8.9.145 TF_RLS3 (page=0x04 address=0x22) [reset=B8h]
      146. 8.9.146 TF_RLS4 (page=0x04 address=0x23) [reset=00h]
      147. 8.9.147 TF_SLOPE1 (page=0x04 address=0x24) [reset=04h]
      148. 8.9.148 TF_SLOPE2 (page=0x04 address=0x25) [reset=08h]
      149. 8.9.149 TF_SLOPE3 (page=0x04 address=0x26) [reset=89h]
      150. 8.9.150 TF_SLOPE4 (page=0x04 address=0x27) [reset=00h]
      151. 8.9.151 TF_TEMP_TH1 (page=0x04 address=0x28) [reset=39h]
      152. 8.9.152 TF_TEMP_TH2 (page=0x04 address=0x29) [reset=80h]
      153. 8.9.153 TF_TEMP_TH3 (page=0x04 address=0x2A) [reset=00h]
      154. 8.9.154 TF_TEMP_TH4 (page=0x04 address=0x2B) [reset=00h]
      155. 8.9.155 TF_MAX_ATTN1 (page=0x04 address=0x2C) [reset=2Dh]
      156. 8.9.156 TF_MAX_ATTN2 (page=0x04 address=0x2D) [reset=6Ah]
      157. 8.9.157 TF_MAX_ATTN3 (page=0x04 address=0x2E) [reset=86h]
      158. 8.9.158 TF_MAX_ATTN4 (page=0x04 address=0x2F) [reset=00h]
      159. 8.9.159 LD_CFG0 (page=0x04 address=0x40) [reset=03h]
      160. 8.9.160 LD_CFG1 (page=0x04 address=0x41) [reset=20h]
      161. 8.9.161 LD_CFG2 (page=0x04 address=0x42) [reset=00h]
      162. 8.9.162 LD_CFG3 (page=0x04 address=0x43) [reset=00h]
      163. 8.9.163 LD_CFG4 (page=0x04 address=0x44) [reset=00h]
      164. 8.9.164 LD_CFG5 (page=0x04 address=0x45) [reset=20h]
      165. 8.9.165 LD_CFG6 (page=0x04 address=0x46) [reset=00h]
      166. 8.9.166 LD_CFG7 (page=0x04 address=0x47) [reset=00h]
      167. 8.9.167 CLD_EFF_1 (page=0x04 address=0x48) [reset=6Ch]
      168. 8.9.168 CLD_EFF_2 (page=0x04 address=0x49) [reset=CCh]
      169. 8.9.169 CLD_EFF_3 (page=0x04 address=0x4A) [reset=CDh]
      170. 8.9.170 CLD_EFF_4 (page=0x04 address=0x4B) [reset=00h]
      171. 8.9.171 LDG_RES1 (page=0x04 address=0x4C) [reset=00h]
      172. 8.9.172 LDG_RES2 (page=0x04 address=0x4D) [reset=00h]
      173. 8.9.173 LDG_RES3 (page=0x04 address=0x4E) [reset=00h]
      174. 8.9.174 LDG_RES4 (page=0x04 address=0x4F) [reset=00h]
      175. 8.9.175 INIT_3 (page=0xFD address=0x3E) [reset=45h]
    10. 8.10 SDOUT Equations
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
    3. 9.3 Design Requirements
    4. 9.4 Detailed Design Procedure
      1. 9.4.1 Mono/Stereo Configuration
      2. 9.4.2 EMI Passive Devices
    5. 9.5 Application Curves
  10. 10Initialization Set Up
    1. 10.1 Initial Device Configuration - Power Up and Software Reset
    2. 10.2 Initial Device Configuration - PWR_MODE0
    3. 10.3 Initial Device Configuration - PWR_MODE1
    4. 10.4 Initial Device Configuration - PWR_MODE2
    5. 10.5 Initial Device Configuration - PWR_MODE3
    6. 10.6 Device Configuration - 44.1 kHz
    7. 10.7 Over Power Protection - OCP Programming
    8. 10.8 DSP Loopback
  11. 11Power Supply Recommendations
    1. 11.1 Power Supply Modes
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Community Resources
    3. 13.3 Trademarks
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

3 Description

The TAS2780 is a mono, digital input Class-D audio amplifier optimized for efficiently driving high peak power into loudspeakers. The Class-D amplifier is capable of delivering 25 W of continuous power into a 4 Ω load with less than 1% THD+N at a supply voltage of 18 V. The broad voltage input range and the high output power makes this amplifier versatile enough to work with battery or line powered systems.

The TAS2780 can be used as a conventional amp or with host-based speaker protection algorithms. The integrated speaker voltage and current sense provides for real time feedback of loudspeaker conditions to the protection algorithms through a return I2S path.

Y-Bridge power architecture improves amplifier efficiency by internally selecting the supplies for optimal headroom. Brownout prevention scheme with multiple thresholds allows reducing the gain in signal path when the supply drops.

Up to eight TAS2780 devices can share a common bus via I2S/TDM and I2C/SPI interfaces.

The TAS2780 is available in a 30 pin HR-QFN package for a compact PCB footprint.

Device Information(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TAS2780 HR QFN 4 mm x 3.5 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Schematic