Hi, TI Support Team
A customer company is developing and reviewing a Portable Audio AMP.
The following problem occurred during the review, so we request a review of the circuit diagram and Register dump.
Review conditions
[Circuit condition]
- MCLK, BCLK, LRCK all use external input.
- 22.5792Mhz, 2.8224Mhz, 44.1Khz.
[Test]
- Input 1Khz Sine signal.
- Audio Precision directly receives the ADC's I2S signal to check the analog output.
[Output waveform]
[TLV320ADC3101 schematic]
[Register dump]
Register dump Page 0 Ch: 0 Chipset: tlv320adc3101 CH 0 REG 00 VAL 00 CH 0 REG 01 VAL 00 CH 0 REG 04 VAL 0d CH 0 REG 05 VAL 11 CH 0 REG 06 VAL 04 CH 0 REG 07 VAL 00 CH 0 REG 08 VAL 00 CH 0 REG 12 VAL 81 CH 0 REG 13 VAL 81 CH 0 REG 14 VAL 40 CH 0 REG 15 VAL 40 CH 0 REG 16 VAL 04 CH 0 REG 19 VAL 00 CH 0 REG 1a VAL 01 CH 0 REG 1b VAL 00 CH 0 REG 1c VAL 00 CH 0 REG 1d VAL 02 CH 0 REG 1e VAL 01 CH 0 REG 1f VAL 00 CH 0 REG 22 VAL 00 CH 0 REG 24 VAL cc CH 0 REG 25 VAL 00 CH 0 REG 26 VAL 02 CH 0 REG 33 VAL 00 CH 0 REG 34 VAL 00 CH 0 REG 35 VAL 12 CH 0 REG 36 VAL 02 CH 0 REG 37 VAL 02 CH 0 REG 38 VAL 00 CH 0 REG 39 VAL 00 CH 0 REG 3a VAL 00 CH 0 REG 3b VAL 44 CH 0 REG 3c VAL 00 CH 0 REG 3d VAL 01 CH 0 REG 3e VAL 00 CH 0 REG 51 VAL c2 CH 0 REG 52 VAL 00 CH 0 REG 53 VAL 00 CH 0 REG 54 VAL 00 CH 0 REG 55 VAL 00 Page 1 Ch: 0 Chipset: tlv320adc3101 CH 0 REG 00 VAL 01 CH 0 REG 01 VAL 00 CH 0 REG 04 VAL 00 CH 0 REG 05 VAL 00 CH 0 REG 06 VAL 00 CH 0 REG 07 VAL 00 CH 0 REG 08 VAL 00 CH 0 REG 12 VAL 00 CH 0 REG 13 VAL 00 CH 0 REG 14 VAL 00 CH 0 REG 15 VAL 00 CH 0 REG 16 VAL 00 CH 0 REG 19 VAL 00 CH 0 REG 1a VAL 00 CH 0 REG 1b VAL 00 CH 0 REG 1c VAL 00 CH 0 REG 1d VAL 00 CH 0 REG 1e VAL 00 CH 0 REG 1f VAL 00 CH 0 REG 22 VAL 00 CH 0 REG 24 VAL 00 CH 0 REG 25 VAL 00 CH 0 REG 26 VAL 00 CH 0 REG 33 VAL 00 CH 0 REG 34 VAL fc CH 0 REG 35 VAL 00 CH 0 REG 36 VAL 3f CH 0 REG 37 VAL fc CH 0 REG 38 VAL 00 CH 0 REG 39 VAL 3f CH 0 REG 3a VAL 00 CH 0 REG 3b VAL 00 CH 0 REG 3c VAL 00 CH 0 REG 3d VAL 00 CH 0 REG 3e VAL 03 CH 0 REG 51 VAL 00 CH 0 REG 52 VAL 00 CH 0 REG 53 VAL 00 CH 0 REG 54 VAL 00 CH 0 REG 55 VAL 00
Thanks.
Regards,
MJ