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WM8510GEDS/V 데이터시트(PDF) 70 Page - Wolfson Microelectronics plc

부품명 WM8510GEDS/V
상세설명  Mono CODEC with Speaker Driver
PDF  81 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8510GEDS/V 데이터시트(HTML) 70 Page - Wolfson Microelectronics plc

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WM8510
Production Data
w
PD Rev 4.1 December 2006
70
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
2:0
ALCMIN
000
Set minimum gain of PGA when using ALC:
000=-12dB
001=-6dB
010=0dB
011=+6dB
100=+12dB
101=+18dB
110=+24dB
111=+30dB
Input Limiter /
Automatic Level
Control (ALC)
8
ALCZC
0
ALC zero cross detection.
0 = disabled (recommended)
1 = enabled
It is recommended that zero cross is not used in
conjunction with the ALC or Limiter functions
Input Limiter /
Automatic Level
Control (ALC)
7:4
ALCHLD
000
ALC hold time before gain is increased.
0000 = 0ms
0001 = 2.67ms
0010 = 5.33ms
… (time doubles with every step)
1111 = 43.691s
Input Limiter /
Automatic Level
Control (ALC)
33 (21h)
3:0
ALCLVL
1011
ALC target – sets signal level at ADC input
0000 = -28.5dB FS
0001 = -27.0dB FS
… (1.5dB steps)
1110 = -7.5dB FS
1111 = -6dB FS
Input Limiter /
Automatic Level
Control (ALC)
8
ALCMODE
0
Determines the ALC mode of operation:
0=ALC mode
1=Limiter mode.
Input Limiter /
Automatic Level
Control (ALC)
Decay (gain ramp-up) time (ALCMODE =0)
Per step
Per 6dB
90% of
range
0000
410us
3.38ms
23.6ms
0001
820us
6.6ms
47.2ms
0010
1.64ms
13.1ms
94.5
… (time doubles with every step)
0011
1010 or
higher
420ms
3.36s
24.2s
Decay (gain ramp-up) time (ALCMODE =1)
Per step
Per 6dB
90% of
range
0000
90.8us
726us
5.23ms
0001
182us
1.45ms
10.5ms
0010
363us
2.91ms
20.9ms
… (time doubles with every step)
34 (22h)
7:4
ALCDCY
0011
1010
93ms
744ms
5.36s
Input Limiter /
Automatic Level
Control (ALC)
ALC attack (gain ramp-down) time
(ALCMODE = 0)
Per step
Per 6dB
90% of
range
0000
104us
832us
6ms
0001
208us
1.664ms
12ms
3:0
ALCATK
0010
0010
416us
3.33ms
24ms
Input Limiter /
Automatic Level
Control (ALC)



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