WM8608 ETC-unknow, WM8608 Datasheet - Page 30

• Manufacturer Part Number: WM8608
• Description: The Wm8608 Comprises A High Performance Multi-channel Pwm Digital Power Amplifier Controller. Simply By Adding Appropriate Power Output Stages A Multi-channel Power Amplifier May Be Built. Six Identical Full Audio Bandwidth Channels, Plus A Reduced B
• Manufacturer: ETC-unknow

WM8608
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The high-pass filters pairs can be bypassed to allow full-range speakers to be used on any of the 3
main output channel pairs. The low-pass outputs from the Front channels can also be disabled to
provide Stereo In – Stereo Out capability when full range front speakers are used.
The Bass Management also provides a selectable LFE boost of 10dB via the LFEBOOST control bit.
This is to compensate for the standard practise of recording the LFE channel 10dB down in the mix.
Additional gain-adjust is provided after this block (refer to page 33).
Table 24 Bass Management Filter
Table 25 Bass Management Filter Bypass
R13 (0Dh)
Bass
Management
Filter
R14 (0Eh)
Bass
Management
Filter Bypass
REGISTER
REGISTER
ADDRESS
ADDRESS
BIT
1:0
BIT
2
0
1
2
3
4
5
LPHPCO[1:0]
LFEBOOST
HPENF
HPENS
HPENC
LPENF
LPENS
LPENC
LABEL
LABEL
DEFAULT
01
0
DEFAULT
1
1
1
1
1
1
Low-/High-Pass Cutoff Frequency (-3dB)
00 = 75Hz
01 = 100Hz
10 = 133Hz
11 = 178Hz
LFE Boost Enable
0 = Boost Disabled
1 = 10dB Boost Enabled
Front High-Pass Filter
0 = High-Pass Filter bypassed
1 = High-Pass Filter enabled
Surround High-Pass Filter
0 = High-Pass Filter bypassed
1 = High-Pass Filter enabled
Front Centre and Rear Centre High-Pass
Filter
0 = High-Pass Filter bypassed
1 = High-Pass Filter enabled
Front Low-Pass Filter Enable
0 = Low-Pass Filter output disabled
1 = Low-Pass Filter output enabled
Surround Low-Pass Filter Enable
0 = Low-Pass Filter output disabled
1 = Low-Pass Filter output enabled
Front Centre and Rear Centre Low-Pass
Filter Enable
0 = Low-Pass Filter output disabled
1 = Low-Pass Filter output enabled
DESCRIPTION
DESCRIPTION
PP Rev 1.5 March 2004
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