WM8986_07 WOLFSON [Wolfson Microelectronics plc], WM8986_07 Datasheet - Page 72
WM8986_07
Manufacturer Part Number
WM8986_07
Description
Multimedia DAC With Class D Headphone and Line Out
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8986_07.pdf
(87 pages)
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WM8986
w
25 (19h)
27 (1Bh)
28 (1Ch)
29 (1Dh)
30 (1Eh)
32 (20h)
33 (21h)
REGISTER
ADDRESS
7:4
3:0
8:7
6:4
3:0
8:0
8:0
8:0
8:0
8:0
8:0
BIT
LIMDCY
LIMATK
LIMLVL
LIMBOOST
LABEL
0011
0010
00
000
0000
000000000
000000000
000000000
000000000
000000000
000000000
DEFAULT
DAC Limiter Decay time (per 6dB gain change)
for 44.1kHz sampling. Note that these will scale
with sample rate:
0000=750us
0001=1.5ms
0010=3ms
0011=6ms
0100=12ms
0101=24ms
0110=48ms
0111=96ms
1000=192ms
1001=384ms
1010=768ms
DAC Limiter Attack time (per 6dB gain change)
for 44.1kHz sampling. Note that these will scale
with sample rate.
0000=94us
0001=188s
0010=375us
0011=750us
0100=1.5ms
0101=3ms
0110=6ms
0111=12ms
1000=24ms
1001=48ms
1010=96ms
1011 to 1111=192ms
Reserved
Programmable signal threshold level
(determines level at which the DAC limiter starts
to operate)
000=-1dB
001=-2dB
010=-3dB
011=-4dB
100=-5dB
101 to 111=-6dB
DAC Limiter volume boost (can be used as a
stand alone volume boost when LIMEN=0):
0000=0dB
0001=+1dB
0010=+2dB
… (1dB steps)
1011=+11dB
1100=+12dB
1101 to 1111=reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
DESCRIPTION
PP, Rev 3.1, February 2007
Output Signal
Path
Output Signal
Path
Output Signal
Path
Output Signal
Path
8
Pre-Production
REFER TO
72
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