wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 40

• Manufacturer Part Number: wm9081
• Description: Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
• Manufacturer: Wolfson Microelectronics plc

WM9081
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Table 20 EQ Band Gain Control
Table 21 EQ Gain Control
RETUNE MOBILE MODE
ReTune Mobile mode provides a comprehensive facility for the user to define the cut-off/centre
frequencies and filter bandwidth for each EQ band, in addition to the gain controls already described.
This enables the EQ to be accurately customised for a specific transducer characteristic or desired
sound profile.
R43 (2Bh)
EQ2
EQ GAIN SETTING
11001 to 11111
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
10101
10110
10111
11000
15:11
10:6
EQ_B4_GAIN
[4:0]
EQ_B5_GAIN
[4:0]
GAIN (DB)
Reserved
0_0000
0_0000
+10
+11
+12
-12
-11
-10
+1
+2
+3
+4
+5
+6
+7
+8
+9
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
00001 = -11dB
….
11000 = +12dB
EQ Band 4 Gain
00000 = -12dB
00001 = -11dB
….
11000 = +12dB
EQ Band 5 Gain
00000 = -12dB
00001 = -11dB
….
11000 = +12dB
PP, Rev 3.0, April 2009
Pre-Production
40