WM8776SEFT/V Wolfson Microelectronics, WM8776SEFT/V Datasheet - Page 47

• Manufacturer Part Number: WM8776SEFT/V
• Description: Audio CODECs Stereo CODEC with 5-Ch Mux
• Manufacturer: Wolfson Microelectronics

Specifications of WM8776SEFT/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-48
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
w
ALC Control 3
REGISTER
Noise Gate
ADDRESS
R18 (12h)
R19 (13h)
R20 (14h)
R21 (15h)
ADC Mux
0011000
0010011
0010100
0010101
Control
Control
Control
Limiter
BIT
4:0
3:0
7:4
4:2
3:0
6:4
6
7
0
TRANWIN [2:0]
MAXATTEN
NGTH [2:0]
MUTERA
AMX[4:0]
MUTELA
DCY[3:0]
ATK[3:0]
LABEL
NGAT
[3:0]
(33ms/1ms)
DEFAULT
(268ms/
9.6ms)
00001
0010
0011
0110
000
010
0
0
0
ALC/Limiter attack (gain ramp-down) time
ALC mode
0000: 8.4ms
0001: 16.8ms
0010: 33.6ms…
(time doubles with every step)
1010 or higher: 8.6s
ALC/Limiter decay (gain ramp up) time
ALC mode
0000: 33.5ms
0001: 67.2ms
0010: 134.4ms ….(time
doubles for every step)
1010 or higher: 34.3ms
Noise gate enable (ALC only)
0 : disabled
1 : enabled
Noise gate threshold
000: -78dBFS
001: -72dBfs
… 6 dB steps
110: -42dBFS
111: -36dBFS
Maximum attenuation of PGA
Limiter (attenuation below
static)
0011 or lower: -3dB
0100: -4dB
…. (-1dB steps)
1100 or higher: -12dB
Length of Transient Window
000: 0us (disabled)
001: 62.5us
010: 125us
…..
111: 4ms
ADC left channel input mixer control bit
AMX[4:0]
Mute for right channel ADC
Mute for left channel ADC
00001
00010
00100
01000
10000
0: Mute off
1: Mute on
0: Mute off
1: Mute on
ADC LEFT IN
AIN1L
AIN2L
AIN3L
AIN4L
AIN5L
DESCRIPTION
Limiter Mode
0000: 250us
0001: 500us…
0010: 1ms
(time doubles with every step)
1010 or higher: 256ms
Limiter mode
0000: 1.2ms
0001: 2.4ms
0010: 4.8ms ….(time doubles
for every step)
1010 or higher: 1.2288s
ALC (lower PGA gain limit)
1010 or lower: -1dB
1011 : -5dB
….. (-4dB steps)
1110 : -17dB
1111 : -21dB
ADC RIGHT IN
PD, Rev 4.1, September 2008
AIN1R
AIN2L
AIN3R
AIN4R
AIN5R
WM8776
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