WM8980CGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM8980CGEFL/RV Datasheet - Page 71

• Manufacturer Part Number: WM8980CGEFL/RV
• Description: Stereo CODEC with Speaker Driver and Video Buffer
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

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