Register Script for Mono DAC playback with 48ksps on Differential Headphone with Offset Calibration
#----------- or before powering up internal AVdd LDO
w 30 01 08
#----------- Enable master analog power control
w 30 02 00
#----------- Set the REF charging time to 40ms
w 30 7b 03
#----------- Choose PTM_P3 for DAC playback
w 30 03 00
#----------- Left DAC reconstruction ve terminal to HPL
w 30 0c 08
#----------- Left DAC reconstruction filter -ve terminal to HPR
w 30 0d 10
#----------- Unmute HPL, gain set to +5dB
w 30 10 05
#----------- Unmute HPR, gain set to +5dB
w 30 11 05
#----------- Offset calibration mode “01”
w 30 7d 01
#----------- Device common mode=0.75V, heaephone output common mode = 1.5V
#----------- Headphone powered by LDOIN supply and LDONIN > 1.8V
w 30 0a 63
#----------- Select page 0
w 30 00 00
#----------- Select PRB_P1 for DAC playback
w 30 3c 01
#----------- Power up left DAC
w 30 3f 94
#----------- Select page 1
w 30 00 01
#----------- Power up HPL and HPR
w 30 09 30
#----------- Poll page 1, register 2, D2. If the bit is '1' go to next step, else wait
#----------- If not polling wait for 8ms
#----------- Select page 0
w 30 00 00
#----------- Unmute left DAC digital volume control
w 30 40 04
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Example Setups
SLAU434 – May 2012
Copyright © 2012, Texas Instruments Incorporated