Part Number: TAS2521
Hi,
I'm using TAS2521 for audio output.
[Voltages] - 3.3V with internal LDO enabled. LDO_SEL (pin 8) is High
[Input I2S] - 13(data), 14(word clk), 15(bit clk), 16(master clk).
[other pins] - 19(I2C scl), 20(I2C sda).
SPKVDD and IOVDD are connected to 3.3V
DVDD is connected externally to AVDD
I have another board with I2s master configured at 44100Hz mono output.
I have verified that I2C interface communication is working fine
I am using an 8 ohm speaker.
I have configured TAS2521 with the below values for speaker
# Playback Class-D
# Page switch to Page 0
W 30 00 00
# Assert Software reset
W 30 01 01
# Page Switch to Page 1
W 30 00 01
# LDO output programmed as 1.8V and Level shifters powered up.
W 30 02 00
# Page switch to Page 0
W 30 00 00
# Dac Instruction programming PRB #1
W 30 3c 01
# CODEC_CLKIN=MCLK.MCLK should be 12.288MHz
W 30 04 00
# Codec Interface control Word length = 16bits.BCLK&WCLK inputs.I2S mode.
W 30 1b 00
# Data slot offset 00
W 30 1c 00
# DAC NDAC Powered up, NDAC=1
W 30 0b 81
# DAC MDAC Powered up, MDAC=2
W 30 0c 82
# DAC OSR(9:0)-> DOSR=128
W 30 0d 00
# DAC OSR(9:0)-> DOSR=128
W 30 0e 80
# Only LDAC powered up.Dac path setup LDAC data Mono of LDAC and RDAC. RDAC data disabled.Soft step 1 per Fs.
W 30 3f B0
# DAC volume for Left channel not muted.Right DAC muted.
W 30 40 04
# LDAC digital gain 0dB
W 30 41 00
# Page Switch to Page 1
W 30 00 01
# Master Reference Powered on
W 30 01 10
# Output common mode for DAC set to 0.9V (default)
W 30 0a 00
# LDAC AFIR is 6th order FIR filter and Powered up.
W 30 03 00
# SPKL attn. Gain =0dB
W 30 2E 00
# SPKL driver PGA Gain=6.0dB
W 30 30 10
# SPK OSCP enabled , OCP Degltich=4, OTP enabled , OTP Deglitch=5
W 30 52 00
# SPK powered up
W 30 2D 02
And I have configured TAS2521 with the below values for headphones
# Playback HP
# Page switch to Page 0
W 30 00 00
# Assert Software reset
W 30 01 01
# Page Switch to Page 1
W 30 00 01
# LDO output programmed as 1.8V and Level shifters powered up.
W 30 02 00
# Page switch to Page 0
W 30 00 00
# Dac Instruction programming PRB #1 for Mono routing.
W 30 3C 01
# CODEC_CLKIN=MCLK.MCLK should be 12.288MHz
W 30 04 00
# Codec Interface control Word length = 16bits.BCLK&WCLK inputs.I2S mode.
W 30 1b 00
# Data slot offset 00
W 30 1c 00
# DAC NDAC Powered up, NDAC=1
W 30 0b 81
# DAC MDAC Powered up, MDAC=2
W 30 0c 82
# DAC OSR(9:0)-> DOSR=128
W 30 0d 00
# DAC OSR(9:0)-> DOSR=128
W 30 0e 80
# Only LDAC powered up.Dac path setup LDAC data Mono of LDAC and RDAC. RDAC data disabled.Soft step 1 per Fs.
W 30 3f B0
# DAC volume for Left channel not muted.Right DAC muted.
W 30 40 04
# LDAC digital gain 0dB
W 30 41 00
# Page Switch to Page 1
W 30 00 01
# Master Reference Powered on
W 30 01 10
# Output common mode for DAC set to 0.9V (default)
W 30 0a 00
# LDAC AFIR is 6th order FIR filter and Powered up.
W 30 03 00
# Power up HPL
w 30 09 20
#Signal to HPL
w 30 0c 04
# unmute HPL
w 30 10 00
Neither speaker nor headphones are giving any audio output.
Am I missing anything? Please suggest me with a solution.
Thank you.
