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TAS2780 Datasheet(PDF) 83 Page - Texas Instruments

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Part # TAS2780
Description  TAS2780 Digital Input Mono Class-D Audio Amplifier With Speaker IV Sense
PDF  97 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TAS2780 Datasheet(HTML) 83 Page - Texas Instruments

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w 70 17 C0 #SARBurstMask=0
w 70 19 00 #LSR Mode
w 70 21 00 #Disable Comparator Hysterisis
w 70 35 74 #Noise minimized
w 70 00 FD #Page 0xFD
w 70 0D 0D #Access Page 0xFD
w 70 3E 4A #Optimal Dmin
w 70 0D 00 #Remove access Page 0xFD
w 70 00 00 #Page 0x00
w 70 03 E8 #PWR_MODE2
w 70 04 A1 #Int LDO mode
w 70 71 0E #PVDD UVLO 6.5V
w 70 02 80 #Power up audio playback with I,V enabled
10.4 Initial Device Configuration - PWR_MODE3
The following I2C sequence is an example of initializing the device in PWR_MODE3, for ultrasonic applications.
w 70 00 00 #Page 0x00
w 70 7F 00 #Book 0x00
w 70 01 01 #SW Reset
d 1 #1ms Delay
w 70 0E 44 #TDM tx vsns transmit enable with slot 4
w 70 0F 40 #TDM tx isns transmit enable with slot 0
w 70 00 01 #Page 0x01
w 70 17 C8 #SARBurstMask=0
w 70 19 00 #LSR Mode
w 70 21 00 #Disable Comparator Hysterisis
w 70 00 FD #Page 0xFD
w 70 0D 0D #Access Page 0xFD
w 70 3E 4A #Optimal Dmin
w 70 0D 00 #Remove access Page 0xFD
w 70 00 00 #Page 0x00
w 70 03 68 #PWR_MODE3
w 70 73 E0 #DEM dither disable
w 70 02 00 #Play audio, power up with playback, IV enabled
10.5 Device Configuration - 44.1 kHz
The following I2C sequence is an example of initializing a TAS2780 device into 44.1 kHz sampling rate.
###### Configure Channel
w 70 60 21 # SBLK to Fs ratio = 256 / 8 TDM Slots
w 70 08 39 # 44.1KHz, Auto TDM off, Frame start High to Low
w 70 09 03 # Offset = 1, Sync on BCLK falling edge
w 70 0A 0A # TDM slot by address, Word = 24 bit, Frame = 32 bit
w 70 0C 20 # Right Ch = TDM slot 2, Left Ch = TDM slot 0
w 70 0D 33 # TX bus keeper, Hi-Z, Offset 1, TX on Falling edge
10.6 Over Power Protection - OCP Programming
The following I2C sequence will program the over current protection in the case 2.7V ≤ VBAT1S≤ 2.9V.
w 70 00 FD #
w 70 0D 0D #
w 70 5C C0 #
w 70 3A 7D #
r 70 3B 01 #
#Record the value read from register 3B: XY
w 70 3B XZ # Z=Y-2
w 70 0D 00 #
w 70 00 00 #
www.ti.com
TAS2780
SLOSE75A – FEBRUARY 2022 – REVISED JUNE 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: TAS2780



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