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WM8602SEDS/V Scheda tecnica(PDF) 26 Page - Wolfson Microelectronics plc

Il numero della parte WM8602SEDS/V
Spiegazioni elettronici  2.1 CHANNEL PWM CONTROLLER
PDF  46 Pages
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Produttore elettronici  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8602SEDS/V Scheda tecnica(HTML) 26 Page - Wolfson Microelectronics plc

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WM8602
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PP Rev 1.5 May 2004
26
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
1:0
LPHPCO[1:0]
01
Low-/High-Pass Cutoff Frequency (-3dB)
00 = 75Hz
01 = 100Hz
10 = 133Hz
11 = 178Hz
R13 (0Dh)
Bass
Management
Filter
2
LFEBOOST
0
LFE Boost Enable
0 = Boost Disabled
1 = 10dB Boost Enabled
Table 23 Bass Management Filter
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R14 (0Eh)
Bass
Management
0
HPENF
1
Left/Right High-Pass Filter
0 = High-Pass Filter bypassed
1 = High-Pass Filter enabled
Filter Bypass
3
LPENF
1
Left/Right Low-Pass Filter Enable
0 = Low-Pass Filter output disabled
1 = Low-Pass Filter output enabled
Table 24 Bass Management Filter Bypass
GRAPHIC EQUALISER
The WM8602 has a 4-band Graphic Equaliser on the main channels. The three upper bands are
controlled via registers (see Table 25, Table 26, Table 27 and Table 28). The lowest band is
controlled via the subwoofer volume control (see VOLS in Table 31). The function has selectable cut-
off frequencies which are independent of sample rate. The boost/cut for the upper three bands is
controllable in 1.5dB steps from -6dB to +9dB via the EQB control bits.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R15 (0Fh)
EQ Band 1
Gain Control
3:0
EQ1GF
[3:0]
1111
(Disabled)
Band 1 Left/Right Gain
0000 or 0001 = +9dB
0010 = +7.5dB
… (1.5dB steps)
1011 to 1110 = -6dB
1111 = Disable
Table 25 EQ Band 1 Gain Control
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R16 (10h)
EQ Band 2
Gain Control
3:0
EQ2GF
[3:0]
1111
(Disabled)
Band 2 Left/Right Gain
0000 or 0001 = +9dB
0010 = +7.5dB
… (1.5dB steps)
1011 to 1110 = -6dB
1111 = Disable
Table 26 EQ Band 2 Gain Control



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