Datasheet

Data Sheet ADAU1772
Rev. B | Page 59 of 116
DB VALUE REGISTER 0 READ
Address: 0x000C, Reset: 0x00, Name: DBREG0
The core can write data to this register, and the data is automatically converted to a level in dB. The most common usage is to determine
the rms value of a signal by taking the absolute value, and then performing low-pass filtering and moving the result to the DBREG0
register.
Table 41. Bit Descriptions for DBREG0
Bits
Bit Name
Settings
Description
Reset
Access
[7:0] DBVAL0 DB Value Register 0 read. 0x00 R
00000000 −96 dB
00010000 −90 dB
00100000 −84 dB
00110000 −78 dB
11100000 −12 dB
11110000 −6 dB
11111111 −0.375 dB
DB VALUE REGISTER 1 READ
Address: 0x000D, Reset: 0x00, Name: DBREG1
The core can write data to this register, and the data is automatically converted to a level in dB. The most common usage is to determine
the rms value of a signal by taking the absolute value, and then performing low-pass filtering and moving the result to the DBREG1
register.