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WM8980CGEFL/V Datenblatt(PDF) 71 Page - Wolfson Microelectronics plc

Teilenummer WM8980CGEFL/V
Bauteilbeschribung  Stereo CODEC with Speaker Driver and Video Buffer
PDF  123 Pages
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Hersteller  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8980CGEFL/V Datenblatt(HTML) 71 Page - Wolfson Microelectronics plc

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Pre-Production
WM8980
w
PP, Rev 3.8, May 2012
71
WM8980 Video Buffer Filter Response
-25
-20
-15
-10
-5
0
5
10
10
100
1000
10000
100000
Frequency (kHz)
0dB
0dB Qboost
6dB
6dB Qboost
-20dBV sinewave input, 0dB gain setting, VBVDD=3.3V
VIDEO BUFFER REGISTERS
Video buffer enable / disable and gain are controlled via the following registers:
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R3
Power management
3
4
VBUFEN
0
Video buffer enable
0 = disabled
1 = enabled
R40
Video Buffer
0
VBCLAMPEN
0
Video buffer clamp enable
0 = disabled
1 = enabled
1
VBGAIN
0
Video buffer gain
0 = 0dB (=6dB unloaded)
1 = +6dB (=12dB unloaded)
4
QBOOST
0
Increases the filters Q.
Table 54 Video Buffer Registers



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