AK5406 Datasheet, PDF (30/37 Pages) Asahi Kasei Microsystems – 80MSPS Triple ADC for Displays

ASAHI KASEI
[AK5406]
Sub Address 23H
[7:5] LOOPBW
LOOPBW
011
010
:
001
000
111
:
101
100
Black Loop bandwidth
FAST
↑
Standard
↓
SLOW
[4:3] LOOPOFFRNG
LOOPOFFRNG
00
01
10
11
Black level coring control
No coring
±0.25 LSB
±1.5 LSB
±1.0 LSB
[2] LOOPMODE
LOOPMODE
0
1
Black Loop mode
Black Loop enable
(BLK LVL register valid)
Black Loop disable
(OFFSET register valid)
[1] LOOPHOLD
LOOPHOLD
0
1
Black Loop condition
Black Loop operation
Hold of Black Loop condition
[0] VSYNC UPDATE
VSYNC UPDATE
Update timing of the Black loop Offset
correction
0
Corrected value of Black Loop Offset is updated
at every HSYNC timing
1
Corrected value of Black Loop Offset is updated
at every 64 VSYNC timing
*OFFSET Integrator of the Black Loop is updated at every HSYNC timing,
regardless of this bit setting.
Only the update timing of the Offset Correction amounts which is added or
subtracted to/from the ADC output is altered by this bit.
MS0592-E-01
30
2008/07