
1995 Jan 19
52
Philips Semiconductors
Preliminary specification
Stand-alone OSD
PCA8515
Fig.45 Standard output with switched pull-up current source (Option 1 - P04).
handbook, full pagewidth
D
MQ
D
SQ
SQ
write pulse
data bus
current
source
TR3
TR4
read pulse (testing use only)
MLB353 - 1
VSS
TR1
TR2
100
μ
A typical
Pin
VDD
Port output register
ACM output enable (A/P bit)
ACM output from OSD circuit
Fig.46 Open-drain output (Option 2 - P04).
handbook, full pagewidth
D
MQ
D
SQ
write pulse
data bus
read pulse (testing use only)
MLB354 - 1
VSS
TR1
Pin
VDD
Port output register
ACM output enable (A/P bit)
ACM output from OSD circuit