AN2546FH-A Panasonic Corporation of North America, AN2546FH-A Datasheet - Page 26

• Manufacturer Part Number: AN2546FH-A
• Description: Automotive Lcd Tv Signal Processor Ic
• Manufacturer: Panasonic Corporation of North America

AN2546FH-A
I Technical Data (continued)
26
1. Serial interface description (continued)
2) Mode setting channel bits table (continued)
(6) ch.19: Horizontal sync. output position adjustment
(7) ch.20: PWM frequency and burst cleaning pulse width adjustment
to pin 46. For an external constant, the characteristics in weak electric field must be evaluated adequately.
output pulse, there would be some error according to VCO free-run frequency.
address
address
Sub-
Sub-
The delay time of pin 34 output to video signal is likely to vary according to an external constant connected
Though the horizontal sync. signal output adjustment range is designed by referring to the center of pin 34
13
14
Composite sync.
signal input
(video signal)
Pin 34
Composite sync. signal output
Pin 32
Horizontal sync. signal output
(D4,D3,D2,D1,D0) = (00000)
Pin 32
Horizontal sync. signal output
(D4,D3,D2,D1,D0) = (11111)
Pin 32
Horizontal sync. signal output
(D5) = "1"
HOSEI
D7
D7
0
1
PWM frequency adjustment
VCO automatic adjustment off
VCO automatic adjustment on
PWMT4
D6
D6

PWM frequency adjustment
KOTEI
D5
D5
27f
31f
0
1
18f
y
y
Delay time
(Approximately 400 ns)
SDB00081BEB
y
Sync. signal separation delay time (Approximately 1 µs)
Sync. output variable mode
Sync. output fixation mode
27f
D4
D4
y
f
h
BLAK
1f
: Horizontal sync. frequency
D3
D3
y
0
1
=
347f
1
h
Burst cleaning pulse adjustment
Black level variable mode
Black level fixation mode
(NTSC/PAL)
D2
D2
D1
D1
D0
D0