WM8608 ETC-unknow, WM8608 Datasheet - Page 39

• 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

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Table 37 Front, Surround, Front Centre and Rear Centre Channel Dynamic Peak
Compressor (2)
Note: The Dynamic Peak Compressors can be enabled independently for each channel pair (e.g.
FL/FR, SL/SR). All channels use the same characteristics (e.g. Attack Rate).
Table 38 Subwoofer Channel Dynamic Peak Compressor (1)
R22 (16h)
Front,
Surround,
Front Centre
and
Rear Centre
Channel
Dynamic
Peak
Compressor
R23 (17h)
Sub Channel
Dynamic
Peak
Compressor
REGISTER
REGISTER
ADDRESS
ADDRESS
2:0
5:3
8
7:6
0
BIT
BIT
ATK[2:0]
DCY[2:0]
THRESH[1:0]
FDEP
PLENSUB
LABEL
LABEL
010
011
11
0
1
DEFAULT
DEFAULT
Front, Surround, Front Centre and
Rear Centre Channel Attack Rate
000 = 170µs
001 = 330µs
010 = 670µs
011 = 1.33ms
100 = 2.67ms
101 = 5.33ms
110 = 10.7ms
111 = 20.1ms
Front, Surround, Front Centre and
Rear Centre Channel Decay Rate
000 = 340ms
001 = 680ms
010 = 1.36s
011 = 2.73s
100 = 5,46s
101, 110, 111 = 10.9s
Front, Surround, Front Centre and
Rear Centre Channel Compressor
Thresholds
00 = -12dB
01 = -9dB
10 = -6dB
11 = -3dB
Frequency-dependent decay
0 = disable
1 = enable
Sub Channel Compressor Enable
0 = disable
1 = enable
DESCRIPTION
DESCRIPTION
PP Rev 1.5 March 2004
WM8608
39