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AS3676 데이터시트(PDF) 73 Page - ams AG

부품명 AS3676
상세설명  Flexible Lighting Management
PDF  92 Pages
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제조업체  AMSCO [ams AG]
홈페이지  http://www.ams.com
Logo AMSCO - ams AG

AS3676 데이터시트(HTML) 73 Page - ams AG

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www.austriamicrosystems.com/AS3676
1v1-4
72 - 91
AS3676
Datasheet - D e ta i l e d D e s c r i p t i o n
7:6
audio_speed_down
00b
R/W
Audio controlled LED persistence time (ramping down)
00
none
01
200ms
10
400ms
11
800ms
Table 111. Audio input
Register
Addr: 47h
Audio input
Audio Sync input control
Bit
Bit Name
Default Access
Description
2:0
audio_gain
000b
R/W
Audio input buffer gain control
000
-12dB
001
-6dB
010
0dB
011
+6dB
100
+12dB
101
+18dB
110
+24dB
111
+30dB
5:3
agc_ctrl
000b
R/W
Audio input buffer AGC function controls AGC switching
threshold
000
AGC off
001
Attenuate low amplitude signals otherwise linear
response (to remove e.g. noise)
010
AGC curve A; slow decay of amplitude detection
011
AGC curve A; fast decay of amplitude detection
100
AGC curve B; slow decay of amplitude detection
101
AGC curve B; fast decay of amplitude detection
110
AGC curve C; slow decay of amplitude detection
111
AGC curve C; fast decay of amplitude detection
6
audio_man_start
1
0b
R/W
Startup Control of audio input buffer (used to charge
optional external dc blocking capacitor)
0
automatic precharging 300us (if audio_dis_start = 0)
1
continuously precharging (if aud_buf_on = 1)
7
audio_dis_start
2
0b
R/W
Disable Startup Control of audio input buffer (used to
charge optional external dc blocking capacitor)
0
precharging enabled
1
precharging disabled
Table 110. Audio Control
Register (Continued)
Addr: 46h
Audio Control
Audio Sync Mode control
Bit
Bit Name
Default Access
Description



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