TAS3251EVM:TAS3251

Eugenio Lazzari

Part Number: TAS3251EVM
Other Parts Discussed in Thread: TAS3251, , TPA3255EVM, TPA3255, PCM5242

Hi, the tas 3251 in the mono versions that we have created do not emit sound by positioning the jamper high (3.3V) pin 14 MODE tas3251 input.
with the GND bass jamper they output sound.
the registry we loaded and corrected MONO 1.0 PBTL, verified with the evm demo board.
I did a lot of checks, I'm not sure if the tas3251 works in MONO.
thanks Eugene

9 months ago

0 Jesse Ji 9 months ago

TI__Genius 14710 points

hi, Lazzari

tas3251evm can work in PBTL mode.

have you confirm the config base on the table 2 in the EVM user guide?

when the output having no sound, having the error reporting having any indicate?

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

sorry, I followed this pattern registers[

SLASEG6B –MAY 2018–REVISED JUNE 2020 www.ti.com

Layout Examples (continued)

11.2.3 Parallel Bridge-Tied Load (PBTL), Post-Filter

This section shows an example layout when operating in parallel bridge-tied load (PBTL) mode and connecting the output traces after the LC filter using four inductors. This layout requires fewer inductors compared with post- filter PBTL.

//program memory

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x02, 0x11 },

{ 0x01, 0x11 },

{ 0x00, 0x00 },

{ 0x03, 0x11 },

{ 0x2a, 0x00 },

{ 0x25, 0x18 },

{ 0x0d, 0x10 },

{ 0x02, 0x00 },

//Sample rate

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x02, 0x80 },

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

// speed 03-48k 04-96k

{ 0x22, 0x04 },

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x02, 0x00 },

//Coefficients

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x1c, 0x00 },

{ 0x1d, 0x00 },

{ 0x1e, 0x00 },

{ 0x1f, 0x00 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x1f },

{ 0x24, 0x00 },

{ 0x25, 0x20 },

{ 0x26, 0xc4 },

{ 0x27, 0x9c },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x13 },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x13 },

{ 0x58, 0x63 },

{ 0x59, 0xf3 },

{ 0x5a, 0x42 },

{ 0x5b, 0x42 },

{ 0x5c, 0x9c },

{ 0x5d, 0x0c },

{ 0x5e, 0xbd },

{ 0x5f, 0xbe },

{ 0x60, 0x63 },

{ 0x61, 0xf3 },

{ 0x62, 0x42 },

{ 0x63, 0x42 },

{ 0x64, 0x62 },

{ 0x65, 0x37 },

{ 0x66, 0xc5 },

{ 0x67, 0x4f },

{ 0x68, 0xb4 },

{ 0x69, 0xa2 },

{ 0x6a, 0x81 },

{ 0x6b, 0x92 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x14 },

{ 0x08, 0x7e },

{ 0x09, 0x57 },

{ 0x0a, 0x3c },

{ 0x0b, 0x88 },

{ 0x0c, 0x81 },

{ 0x0d, 0xa8 },

{ 0x0e, 0xc3 },

{ 0x0f, 0x78 },

{ 0x10, 0x7e },

{ 0x11, 0x57 },

{ 0x12, 0x3c },

{ 0x13, 0x88 },

{ 0x14, 0x7e },

{ 0x15, 0x55 },

{ 0x16, 0xd9 },

{ 0x17, 0xd6 },

{ 0x18, 0x83 },

{ 0x19, 0x4e },

{ 0x1a, 0xc1 },

{ 0x1b, 0x8d },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x14 },

{ 0x1c, 0x01 },

{ 0x1d, 0xbb },

{ 0x1e, 0x7c },

{ 0x1f, 0xf4 },

{ 0x20, 0x01 },

{ 0x21, 0xbb },

{ 0x22, 0x7c },

{ 0x23, 0xf4 },

{ 0x24, 0x01 },

{ 0x25, 0xbb },

{ 0x26, 0x7c },

{ 0x27, 0xf4 },

{ 0x28, 0x62 },

{ 0x29, 0x37 },

{ 0x2a, 0xc5 },

{ 0x2b, 0x4f },

{ 0x2c, 0xb4 },

{ 0x2d, 0xa2 },

{ 0x2e, 0x81 },

{ 0x2f, 0x92 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x16 },

{ 0x1c, 0x7f },

{ 0x1d, 0xff },

{ 0x1e, 0xff },

{ 0x1f, 0xff },

{ 0x20, 0x00 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x24, 0x00 },

{ 0x25, 0x00 },

{ 0x26, 0x00 },

{ 0x27, 0x00 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x16 },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x16 },

{ 0x44, 0x7f },

{ 0x45, 0xff },

{ 0x46, 0xff },

{ 0x47, 0xff },

{ 0x48, 0x00 },

{ 0x49, 0x00 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x4c, 0x00 },

{ 0x4d, 0x00 },

{ 0x4e, 0x00 },

{ 0x4f, 0x00 },

{ 0x50, 0x00 },

{ 0x51, 0x00 },

{ 0x52, 0x00 },

{ 0x53, 0x00 },

{ 0x54, 0x00 },

{ 0x55, 0x00 },

{ 0x56, 0x00 },

{ 0x57, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x16 },

{ 0x58, 0x7f },

{ 0x59, 0xff },

{ 0x5a, 0xff },

{ 0x5b, 0xff },

{ 0x5c, 0x00 },

{ 0x5d, 0x00 },

{ 0x5e, 0x00 },

{ 0x5f, 0x00 },

{ 0x60, 0x00 },

{ 0x61, 0x00 },

{ 0x62, 0x00 },

{ 0x63, 0x00 },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x16 },

{ 0x6c, 0x7f },

{ 0x6d, 0xff },

{ 0x6e, 0xff },

{ 0x6f, 0xff },

{ 0x70, 0x00 },

{ 0x71, 0x00 },

{ 0x72, 0x00 },

{ 0x73, 0x00 },

{ 0x74, 0x00 },

{ 0x75, 0x00 },

{ 0x76, 0x00 },

{ 0x77, 0x00 },

{ 0x78, 0x00 },

{ 0x79, 0x00 },

{ 0x7a, 0x00 },

{ 0x7b, 0x00 },

{ 0x7c, 0x00 },

{ 0x7d, 0x00 },

{ 0x7e, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x08, 0x7f },

{ 0x09, 0xff },

{ 0x0a, 0xff },

{ 0x0b, 0xff },

{ 0x0c, 0x00 },

{ 0x0d, 0x00 },

{ 0x0e, 0x00 },

{ 0x0f, 0x00 },

{ 0x10, 0x00 },

{ 0x11, 0x00 },

{ 0x12, 0x00 },

{ 0x13, 0x00 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x1c, 0x7f },

{ 0x1d, 0xff },

{ 0x1e, 0xff },

{ 0x1f, 0xff },

{ 0x20, 0x00 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x24, 0x00 },

{ 0x25, 0x00 },

{ 0x26, 0x00 },

{ 0x27, 0x00 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x44, 0x7f },

{ 0x45, 0xff },

{ 0x46, 0xff },

{ 0x47, 0xff },

{ 0x48, 0x00 },

{ 0x49, 0x00 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x4c, 0x00 },

{ 0x4d, 0x00 },

{ 0x4e, 0x00 },

{ 0x4f, 0x00 },

{ 0x50, 0x00 },

{ 0x51, 0x00 },

{ 0x52, 0x00 },

{ 0x53, 0x00 },

{ 0x54, 0x00 },

{ 0x55, 0x00 },

{ 0x56, 0x00 },

{ 0x57, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x58, 0x7f },

{ 0x59, 0xff },

{ 0x5a, 0xff },

{ 0x5b, 0xff },

{ 0x5c, 0x00 },

{ 0x5d, 0x00 },

{ 0x5e, 0x00 },

{ 0x5f, 0x00 },

{ 0x60, 0x00 },

{ 0x61, 0x00 },

{ 0x62, 0x00 },

{ 0x63, 0x00 },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x17 },

{ 0x6c, 0x7f },

{ 0x6d, 0xff },

{ 0x6e, 0xff },

{ 0x6f, 0xff },

{ 0x70, 0x00 },

{ 0x71, 0x00 },

{ 0x72, 0x00 },

{ 0x73, 0x00 },

{ 0x74, 0x00 },

{ 0x75, 0x00 },

{ 0x76, 0x00 },

{ 0x77, 0x00 },

{ 0x78, 0x00 },

{ 0x79, 0x00 },

{ 0x7a, 0x00 },

{ 0x7b, 0x00 },

{ 0x7c, 0x00 },

{ 0x7d, 0x00 },

{ 0x7e, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x18 },

{ 0x08, 0x08 },

{ 0x09, 0x00 },

{ 0x0a, 0x00 },

{ 0x0b, 0x00 },

{ 0x0c, 0x00 },

{ 0x0d, 0x00 },

{ 0x0e, 0x00 },

{ 0x0f, 0x00 },

{ 0x10, 0x00 },

{ 0x11, 0x00 },

{ 0x12, 0x00 },

{ 0x13, 0x00 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x18 },

{ 0x58, 0x7f },

{ 0x59, 0xff },

{ 0x5a, 0xff },

{ 0x5b, 0xff },

{ 0x5c, 0x00 },

{ 0x5d, 0x00 },

{ 0x5e, 0x00 },

{ 0x5f, 0x00 },

{ 0x60, 0x00 },

{ 0x61, 0x00 },

{ 0x62, 0x00 },

{ 0x63, 0x00 },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x18 },

{ 0x6c, 0x7f },

{ 0x6d, 0xff },

{ 0x6e, 0xff },

{ 0x6f, 0xff },

{ 0x70, 0x00 },

{ 0x71, 0x00 },

{ 0x72, 0x00 },

{ 0x73, 0x00 },

{ 0x74, 0x00 },

{ 0x75, 0x00 },

{ 0x76, 0x00 },

{ 0x77, 0x00 },

{ 0x78, 0x00 },

{ 0x79, 0x00 },

{ 0x7a, 0x00 },

{ 0x7b, 0x00 },

{ 0x7c, 0x00 },

{ 0x7d, 0x00 },

{ 0x7e, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x08, 0x7f },

{ 0x09, 0xff },

{ 0x0a, 0xff },

{ 0x0b, 0xff },

{ 0x0c, 0x00 },

{ 0x0d, 0x00 },

{ 0x0e, 0x00 },

{ 0x0f, 0x00 },

{ 0x10, 0x00 },

{ 0x11, 0x00 },

{ 0x12, 0x00 },

{ 0x13, 0x00 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x1c, 0x7f },

{ 0x1d, 0xff },

{ 0x1e, 0xff },

{ 0x1f, 0xff },

{ 0x20, 0x00 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x24, 0x00 },

{ 0x25, 0x00 },

{ 0x26, 0x00 },

{ 0x27, 0x00 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x44, 0x7f },

{ 0x45, 0xff },

{ 0x46, 0xff },

{ 0x47, 0xff },

{ 0x48, 0x00 },

{ 0x49, 0x00 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x4c, 0x00 },

{ 0x4d, 0x00 },

{ 0x4e, 0x00 },

{ 0x4f, 0x00 },

{ 0x50, 0x00 },

{ 0x51, 0x00 },

{ 0x52, 0x00 },

{ 0x53, 0x00 },

{ 0x54, 0x00 },

{ 0x55, 0x00 },

{ 0x56, 0x00 },

{ 0x57, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x58, 0x7f },

{ 0x59, 0xff },

{ 0x5a, 0xff },

{ 0x5b, 0xff },

{ 0x5c, 0x00 },

{ 0x5d, 0x00 },

{ 0x5e, 0x00 },

{ 0x5f, 0x00 },

{ 0x60, 0x00 },

{ 0x61, 0x00 },

{ 0x62, 0x00 },

{ 0x63, 0x00 },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x19 },

{ 0x6c, 0x7f },

{ 0x6d, 0xff },

{ 0x6e, 0xff },

{ 0x6f, 0xff },

{ 0x70, 0x00 },

{ 0x71, 0x00 },

{ 0x72, 0x00 },

{ 0x73, 0x00 },

{ 0x74, 0x00 },

{ 0x75, 0x00 },

{ 0x76, 0x00 },

{ 0x77, 0x00 },

{ 0x78, 0x00 },

{ 0x79, 0x00 },

{ 0x7a, 0x00 },

{ 0x7b, 0x00 },

{ 0x7c, 0x00 },

{ 0x7d, 0x00 },

{ 0x7e, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x08, 0x7f },

{ 0x09, 0xff },

{ 0x0a, 0xff },

{ 0x0b, 0xff },

{ 0x0c, 0x00 },

{ 0x0d, 0x00 },

{ 0x0e, 0x00 },

{ 0x0f, 0x00 },

{ 0x10, 0x00 },

{ 0x11, 0x00 },

{ 0x12, 0x00 },

{ 0x13, 0x00 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x1c, 0x7f },

{ 0x1d, 0xff },

{ 0x1e, 0xff },

{ 0x1f, 0xff },

{ 0x20, 0x00 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x24, 0x00 },

{ 0x25, 0x00 },

{ 0x26, 0x00 },

{ 0x27, 0x00 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x30, 0x7f },

{ 0x31, 0xff },

{ 0x32, 0xff },

{ 0x33, 0xff },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x44, 0x08 },

{ 0x45, 0x00 },

{ 0x46, 0x00 },

{ 0x47, 0x00 },

{ 0x48, 0x00 },

{ 0x49, 0x00 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x4c, 0x00 },

{ 0x4d, 0x00 },

{ 0x4e, 0x00 },

{ 0x4f, 0x00 },

{ 0x50, 0x00 },

{ 0x51, 0x00 },

{ 0x52, 0x00 },

{ 0x53, 0x00 },

{ 0x54, 0x00 },

{ 0x55, 0x00 },

{ 0x56, 0x00 },

{ 0x57, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x58, 0x00 },

{ 0x59, 0x71 },

{ 0x5a, 0x94 },

{ 0x5b, 0x9a },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1a },

{ 0x6c, 0x00 },

{ 0x6d, 0x03 },

{ 0x6e, 0x69 },

{ 0x6f, 0xc5 },

{ 0x70, 0x00 },

{ 0x71, 0x01 },

{ 0x72, 0x5d },

{ 0x73, 0x85 },

{ 0x74, 0x00 },

{ 0x75, 0x01 },

{ 0x76, 0xb4 },

{ 0x77, 0xe5 },

{ 0x78, 0x00 },

{ 0x79, 0x00 },

{ 0x7a, 0x00 },

{ 0x7b, 0x00 },

{ 0x7c, 0x00 },

{ 0x7d, 0x00 },

{ 0x7e, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1b },

{ 0x08, 0x00 },

{ 0x09, 0x00 },

{ 0x0a, 0x00 },

{ 0x0b, 0x00 },

{ 0x0c, 0xf9 },

{ 0x0d, 0xda },

{ 0x0e, 0xbc },

{ 0x0f, 0x21 },

{ 0x10, 0xfc },

{ 0x11, 0x58 },

{ 0x12, 0x8b },

{ 0x13, 0x89 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1b },

{ 0x1c, 0x00 },

{ 0x1d, 0x03 },

{ 0x1e, 0x69 },

{ 0x1f, 0xc5 },

{ 0x20, 0x00 },

{ 0x21, 0x01 },

{ 0x22, 0x5d },

{ 0x23, 0x85 },

{ 0x24, 0x00 },

{ 0x25, 0x01 },

{ 0x26, 0xb4 },

{ 0x27, 0xe5 },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x30, 0x00 },

{ 0x31, 0x00 },

{ 0x32, 0x00 },

{ 0x33, 0x00 },

{ 0x34, 0xf9 },

{ 0x35, 0xda },

{ 0x36, 0xbc },

{ 0x37, 0x21 },

{ 0x38, 0xfc },

{ 0x39, 0x58 },

{ 0x3a, 0x8b },

{ 0x3b, 0x89 },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1b },

{ 0x44, 0x00 },

{ 0x45, 0x03 },

{ 0x46, 0x69 },

{ 0x47, 0xc5 },

{ 0x48, 0x00 },

{ 0x49, 0x01 },

{ 0x4a, 0x5d },

{ 0x4b, 0x85 },

{ 0x4c, 0x00 },

{ 0x4d, 0x01 },

{ 0x4e, 0xb4 },

{ 0x4f, 0xe5 },

{ 0x50, 0x00 },

{ 0x51, 0x00 },

{ 0x52, 0x00 },

{ 0x53, 0x00 },

{ 0x54, 0x00 },

{ 0x55, 0x00 },

{ 0x56, 0x00 },

{ 0x57, 0x00 },

{ 0x58, 0x00 },

{ 0x59, 0x00 },

{ 0x5a, 0x00 },

{ 0x5b, 0x00 },

{ 0x5c, 0xf9 },

{ 0x5d, 0xda },

{ 0x5e, 0xbc },

{ 0x5f, 0x21 },

{ 0x60, 0xfc },

{ 0x61, 0x58 },

{ 0x62, 0x8b },

{ 0x63, 0x89 },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x2c, 0x00 },

{ 0x2d, 0x80 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x34, 0x40 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x38, 0x40 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x40, 0x00 },

{ 0x41, 0x80 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x44, 0x00 },

{ 0x45, 0x00 },

{ 0x46, 0x00 },

{ 0x47, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x48, 0x00 },

{ 0x49, 0x00 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x5c, 0x00 },

{ 0x5d, 0x40 },

{ 0x5e, 0x26 },

{ 0x5f, 0xe7 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x60, 0x00 },

{ 0x61, 0x40 },

{ 0x62, 0x26 },

{ 0x63, 0xe7 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x64, 0x00 },

{ 0x65, 0x00 },

{ 0x66, 0x00 },

{ 0x67, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1d },

{ 0x68, 0x00 },

{ 0x69, 0x00 },

{ 0x6a, 0x00 },

{ 0x6b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x14, 0x00 },

{ 0x15, 0x80 },

{ 0x16, 0x00 },

{ 0x17, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x18, 0x00 },

{ 0x19, 0x00 },

{ 0x1a, 0x00 },

{ 0x1b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x1c, 0x00 },

{ 0x1d, 0x00 },

{ 0x1e, 0x00 },

{ 0x1f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x20, 0x00 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x24, 0x00 },

{ 0x25, 0x00 },

{ 0x26, 0x00 },

{ 0x27, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x28, 0x00 },

{ 0x29, 0x00 },

{ 0x2a, 0x00 },

{ 0x2b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x2c, 0x00 },

{ 0x2d, 0x80 },

{ 0x2e, 0x00 },

{ 0x2f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x30, 0x00 },

{ 0x31, 0x00 },

{ 0x32, 0x00 },

{ 0x33, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x34, 0x00 },

{ 0x35, 0x00 },

{ 0x36, 0x00 },

{ 0x37, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x38, 0x00 },

{ 0x39, 0x00 },

{ 0x3a, 0x00 },

{ 0x3b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x3c, 0x00 },

{ 0x3d, 0x00 },

{ 0x3e, 0x00 },

{ 0x3f, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x40, 0x00 },

{ 0x41, 0x00 },

{ 0x42, 0x00 },

{ 0x43, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x44, 0x00 },

{ 0x45, 0x80 },

{ 0x46, 0x00 },

{ 0x47, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1e },

{ 0x48, 0x00 },

{ 0x49, 0x80 },

{ 0x4a, 0x00 },

{ 0x4b, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x14, 0x00 },

{ 0x15, 0xce },

{ 0x16, 0xc0 },

{ 0x17, 0x8a },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x18, 0x05 },

{ 0x19, 0x1f },

{ 0x1a, 0x97 },

{ 0x1b, 0x37 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x1c, 0x00 },

{ 0x1d, 0x01 },

{ 0x1e, 0xb4 },

{ 0x1f, 0xe8 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x20, 0x40 },

{ 0x21, 0x00 },

{ 0x22, 0x00 },

{ 0x23, 0x00 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x28, 0x7a },

{ 0x29, 0xe0 },

{ 0x2a, 0x68 },

{ 0x2b, 0xc9 },

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x1f },

{ 0x2c, 0x00 },

{ 0x2d, 0x00 },

{ 0x2e, 0x2b },

{ 0x2f, 0xb1 },

//swap command

{ 0x00, 0x00 },

{ 0x7f, 0x8c },

{ 0x00, 0x23 },

{ 0x14, 0x00 },

{ 0x15, 0x00 },

{ 0x16, 0x00 },

{ 0x17, 0x01 },

//register tuning

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x07, 0x00 },

{ 0x08, 0x20 },

{ 0x55, 0x07 },

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x00 },

{ 0x3d, 0x30 },

{ 0x3e, 0x30 },

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x00, 0x01 },

{ 0x02, 0x00 },

//Unmute the device

{ 0x00, 0x00 },

{ 0x7f, 0x00 },

{ 0x03, 0x00 },

{ 0x2a, 0x11 },

};

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi, Lazzari

it seems like you generated the config file with Audio Processing(Standard(1.0 48k)) by ppc3?

have error reporting show any sign about what kind of error might happen?

also, can you share your sch, also the pvdd, speaker power, load resistance you use?

also, what is the i2s clk you use?

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

It looks like you generated the configuration file with ppc3's Audio Processing (Standard (1.0 48k))?

Yes (1.0 96K)

does the error reporting show any signs of what kind of error might occur?
no errors with Mode high but it doesn't play
FAULT error with MODE low but it sounds

also, you can share your sch, also pvdd, power of

speakers, the load resistor you use?
4 homs

also, what is the i2s clk you use?
from SRC 43921

grazie

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

acting with the reset deletes the errors

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

my real question and

The TAS3251 works in mono as the attached diagram
regardless of the mode position?
from your 8.2 Functional Block Diagram
it would seem yes

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi Lazzari

maybe i haven't got your questions clearly.

tas3251 can work with you attached diagram at mono mode.

the mode position, you mean even you do not choose mono mode at pin14, your attached figure 124 can work too?

it is strange, have you test the mode pin, does it really go to high or low when change mode?

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

hi Jesse

it only works in low mode

tks

eugenio

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

Yes
the 3251 only sounds when pin 14 is GND
and mute when pin 14 is 3.3V

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi, Lazzari

have you seen same thing on TI EVM board?

basically, no matter using post filter pbtl or pre filter pbtl, when select pbtl mode, it should work.

i will confirm with our EVM board about this.

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

hi Jesse with the EVM module it sounds however you use the MODE pin
Is it an anomaly?
the PCBs I made are as per the attached post-filter diagram.

Tks

Eugenio

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi Lazzari

do you mean EVM do not have your problem?

basically, attached post-filter or pre-filer should has no related to the mode selection.

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

TAS3251EVM: 1.0 PBTL
J14 MODE open Sounds
J14 MODE closed, Amp reset sounds, with FAULT indicator lit.

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi, Lazzari

sorry for late reply.

i confirmed with our evm board, as you said, the script 2.0 do work on mode select to PBTL. but it is still be configured to stereo 2.0 mode. so even it can work. we still do not recommend using with this method.

ppc3 mono 1.0 connecting with our evm is not workable in our GUI. but the script be generated is workable.

attached file is what i verified by flashing script by i2c directly to our evm and config evm to pbtl mode.

it is workable.

tks

jesse

/cfs-file/__key/communityserver-discussions-components-files/6/tas3251-mono1.0.txt

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

Sorry Jesse
Maybe I'm not asking the question correctly.
in the block diagram of the TAS3251 the mode pin is not influential in the configuration of the bridge amplifier, it seems to only have the function of controlling the mono/stereo protections.
so it is sufficient to connect the post filter to the bridge and add the input signal L+R is this correct?
thanks Eugene

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

hi, with your pinJ14 configuration it is correct
a doubt always remains, in the load measurements I always find the same power 100W 4 ohm same result in both versions
stereo/mono.
this is not possible with a bridge connection.

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi Lazzari

yes, you are correct.

tks

jesse

0 Jesse Ji 9 months ago in reply to Eugenio Lazzari

TI__Genius 14710 points

hi Lazzari

do you mean even in mono mode, the output power cannot be higher at the output?

tks

jesse

0 Eugenio Lazzari 9 months ago in reply to Jesse Ji

Intellectual 455 points

connected speaker 4 hom
voltage detected, OUTA + OUTA- 20V AC.
EVM 36V DC power supply
identical output power from the EVM board and our TAS3251 boards configured in MONO and STEREO..

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

also with the TAS3255 EVM board the same measurements are obtained with 36V MONO/STEREO power supply.
Output Power increases greatly with 53V DC power supply
sorry
eugenio

0 Luis Fernandes de Pina 9 months ago in reply to Eugenio Lazzari

TI__Genius 14640 points

Hello Eugenio,

The TAS3251 doesn't support 53V, are you referring to the TPA3255EVM? Also can you provide a picture of the Jumper configuration of the EVM and your hardware connections.

best regards,
Luis

0 Eugenio Lazzari 9 months ago in reply to Luis Fernandes de Pina

Intellectual 455 points

hi, yes, I am referring to the TAS3255 with 53V voltage
the TAS 3251 with 36V voltage
I attach photos

Tas foto.eml

0 Luis Fernandes de Pina 9 months ago in reply to Eugenio Lazzari

TI__Genius 14640 points

Hello Eugenio,

Can you remove J19 jumper, looks like you have it configured in BTL.

best regards,
Luis

0 Eugenio Lazzari 9 months ago in reply to Luis Fernandes de Pina

Intellectual 455 points

Hi Luis
all tests were performed with J19 high and low
with address 0/1
J14 high/low
the measurements do not change, they are identical stereo/mono
Is it sufficient to load the mono register 1.0 and position the pins as per the diagram? do we need to do something else?
thanks Eugene

0 Luis Fernandes de Pina 9 months ago in reply to Eugenio Lazzari

TI__Genius 14640 points

Hello Eugenio,

You would need to load the MONO PBTL register configuration and make sure the pins on the EVM are configured in PBTL as outlined in the user's guide. The pin i highlighted seemed to be the main inconsistency but it seems you are still unable to get the desired output power? what are you using to drive the input source?

best regards,
luis

0 Eugenio Lazzari 9 months ago in reply to Luis Fernandes de Pina

Intellectual 455 points

a personal computer Qobuz USB player output for audio files
REW as frequency counter USB output 1000 Hertz
impedance 4 ohm Load TAS Voltage 36 V DC
same results with the TAS 3255 which has no registers
same with our TAS3251 boards
have you tried to verify greater power with the TAS in MONO?
thanks Eugene

0 Eugenio Lazzari 9 months ago in reply to Eugenio Lazzari

Intellectual 455 points

if it doesn't work I use the TAS3255 family to have more power at low frequencies
for the mids and highs I use the TAS 3251 family
I preferred to use only I2S digital amplifiers with EQ.Crossover..etc..
anyway thanks Eugenio

0 Luis Fernandes de Pina 9 months ago in reply to Eugenio Lazzari

TI__Genius 14640 points

Hello Eugenio ,

There is no TAS3255 only the TPA3255 for analog input. Jesse had verified the output power behavior on his side. Have they also tried modifying the DAC Gain to see if that allows them to push their required output power or modifying the input mix, because if they are using USB audio perhaps they are not reaching a 0 dbFS input to push the maximum output power with a full scale digital input. We typically drive the I2S bus directly from our audio precision equipment.

best regards,
Luis

0 Eugenio Lazzari 9 months ago in reply to Luis Fernandes de Pina

Intellectual 455 points

ok thanks Jesse e Luis

0 Luis Fernandes de Pina 9 months ago in reply to Eugenio Lazzari

TI__Genius 14640 points

Hello Eugenio,

Can you confirm the behavior of the DAC gain/input mix change on your system?

best regards,
LUis

+1 Eugenio Lazzari 9 months ago in reply to Luis Fernandes de Pina

Intellectual 455 points

Hi, yes everything is fine, I also used a PCM5242 EVM board with balanced analog output with adjustable gain.
my real problem is the MONO configuration of my TAS3251 boards, checking the Gerbers better I discovered that the INB+ and INB- inputs generated were not both on GND. (disposable)
with the modification I solved it

see you soon Eugene

Audio

Audio forum

TAS3251EVM:TAS3251