AK4702EQ Datasheet, PDF (32/39 Pages) Asahi Kasei Microsystems – 2ch DAC with AV SCART switch

ASAHI KASEI
[AK4702EQ]
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
08H SB/FB Monitor
0
0
0
0
0
FVCR SVCR1 SVCR0
R/W
default
READ
0
0
0
0
0
0
0
0
SVCR1-0: VCR Slow blanking status monitor
Those bits reflect the voltage at VCRSB pin for both Input/Output modes
SVCR1-0 do not work correctly when VP<11.4V
SVCR1 SVCR0
VCRSB Level
0
0
< 2V
0
1
4.5 to 7V
1
0
(Reserved)
1
1
9.5<
Table 21. VCR Slow Blanking monitor
FVCR: VCR Fast blanking input level monitor
This bit is enabled when TVFB bit = “1”.
FVCR
VCRFB Input Level
0
<0.4V
1
1 V<
Table 22. VCR Fast Blanking monitor (Typical threshold is 0.7V)
Changes to the 08H status can be monitored via the INT pin. The INT pin is the open drain output and goes “L” for
2usec(typ.) when the status of 08H is changed. This pin should be connected to VD (typ. 5V) through 10kohm resister.
MS0424-E-00
- 32 -
2005/09