WM8778 Datasheet, PDF (44/50 Pages) Wolfson Microelectronics plc – 24 BIT 192KHZ STEREO CODEC

WM8778
REGISTER
ADDRESS
R20 (14h)
0010100
Limiter
Control
R21 (15h)
0010101
ADC Mux
Control
R22 (16h)
0010110
Output Mux
R23 (17h)
0010111
Software
Reset
BIT
LABEL
DEFAULT
DESCRIPTION
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3:0
MAXATTEN
[3:0]
0110
Maximum Attenuation of PGA
Limiter
ALC
(attenuation below static)
0011 or lower: -3dB
(lower PGA gain limit)
1010 or lower: -1dB
0100: -4dB
…. (-1dB steps)
1011 : -5dB
….. (-4dB steps)
1100 or higher: -12dB
1110 : -17dB
1111 : -21dB
6:4 TRANWIN [2:0]
010
Length of Transient Window:
000: 0us (disabled)
001: 62.5us
010: 125us
…..
111: 4ms
6
MUTERA
0
Mute for Right Channel ADC:
0: Mute off
1: Mute on
7
MUTELA
0
Mute for Left Channel ADC:
0: Mute off
1: Mute on
8
LRBOTH
0
Right Channel Input PGA Controlled by Left Channel Register:
0 : Right channel uses RAG and MUTERA.
1 : Right channel uses LAG and MUTELA.
0
MXDAC
1
VOUT Output Select DAC (see Figure 22)
(DAC
playback)
2
MXBYP
0
VOUT Output Select Bypass Path.
(not selected)
[8:0]
RESET
Not reset Writing to this register will apply a reset to the device registers.
w
PP Rev 1.7 June 2004
44