DA7218 Datasheet, PDF (79/173 Pages) Dialog Semiconductor – Ultra-Low Power Stereo Codec

DA7218
Ultra-Low Power Stereo Codec
Table 68: ALC_TARGET_MIN (Page 0: 0x00000034)
Bit
Mode
Symbol
Description
5:0
R/W
alc_threshold_min Sets the minimum target amplitude of the ALC
output signal. If the output signal drops below this
level, the ALC will increase the gain until the output
signal rises above this level.
Reset
0x3F
00 0000 = 0 dBFS
00 0001 = -1.5 dBFS
00 0010 = -3.0 dBFS
00 0011 = -4.5 dBFS
continuing in -1.5 dBFS steps to
11 1110 = -93.0 dBFS
11 1111 = -94.5 dBFS (default)
Table 69: ALC_TARGET_MAX (Page 0: 0x00000035)
Bit
Mode
Symbol
Description
Reset
5:0
R/W
alc_threshold_max Sets the maximum target amplitude of the ALC
0x0
output signal. If the output signal exceeds this level,
the ALC will decrease the gain until the output
signal drops below this level.
00 0000 = 0 dBFS
00 0001 = -1.5 dBFS
00 0010 = -3.0 dBFS
00 0011 = -4.5 dBFS
continuing in -1.5 dBFS steps to
11 1110 = -93.0 dBFS
11 1111 = -94.5 dBFS
Datasheet
CFR0011-120-00
Revision 2.5
79 of 173
01 Sep 2016
© 2016 Dialog Semiconductor