ch7019 Chrontel, ch7019 Datasheet - Page 5

• Manufacturer Part Number: ch7019
• Description: Ch7019 Tv Encoder / Lvds Transmitter
• Manufacturer: Chrontel

CHRONTEL
Table 1: Pin Description (continued)
201-0000-048
Pin #
2
5, 24
6, 25
11, 14, 17
12, 15, 18
27, 30, 33
28, 31, 34
38
49
50
52
40
41
42
43
44
45
46
47
# of Pins Type
1
2
2
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
Rev. 2.4,
Analog
Out
Out
Out
Out
Out
Out
Analog
Out
Out
Out
Out
Out
Out
Out
Out
Out
Out
In
12/18/2006
Symbol
LPLLCAP
LL2C, LL1C
LL2C*,
LL1C*
LDC[6:4]
LDC[6:4]*
LDC[2:0]
LDC[2:0]*
ISET
C/HSYNC
BCO/VSYNC
XI / FIN
CVBS
(DACB3)
CVBS
(DACA3)
Y/G
(DACB1)
Y/G
(DACA1)
Pr/R
(DACB2)
C/R
(DACA2)
Pb/B
(DACB0)
CVBS/B
(DACA0)
Description
LVDS PLL Capacitor
This pins allows coupling of any signal to the on-chip loop filter
capacitor.
Positive LVDS differential Clock2 & Clock1
Negative LVDS differential Clock2 & Clock1
Positive LVDS differential data[6:4]
Negative LVDS differential data[6:4]
Positive LVDS differential data[2:0]
Negative LVDS differential data [2:0]
Current Set Resistor Input
This pin sets the DAC current. A 140-ohm resistor should be connected
between this pin and DAC_GND (pin 39) using short and wide traces.
Composite Video
This pin outputs a composite video signal capable of driving a 75 ohm doubly
terminated load. During bypass modes this output is valid only if the data format
is compatible with one of the TV-Out display modes.
Composite Video
This pin outputs a composite video signal capable of driving a 75 ohm doubly
terminated load. During bypass modes this output is valid only if the data format
is compatible with one of the TV-Out display modes.
Luma / Green Output
This pin outputs a selectable video signal. The output is designed to drive a 75 ohm
doubly terminated load.
component of YPrPb or green (for VGA bypass)
Luma / Green Output
This pin outputs a selectable video signal. The output is designed to drive a 75 ohm
doubly terminated load. The output can be selected to be s-video luminance or
green (for SCART type 1 connections)
Pr / Red Output
This pin outputs a selectable video signal. The output is designed to drive a 75 ohm
doubly terminated load. The output can be selected to be the Pr component of
YPrPb or red (for VGA bypass)
Chroma / Red Output
This pin outputs a selectable video signal. The output is designed to drive a 75 ohm
doubly terminated load. The output can be selected to be s-video chrominance or
red (for SCART type 1 connections)
Pb / Blue Output
This pin outputs a selectable video signal. The output is designed to drive a 75
ohm doubly terminated load. The output can be selected to the Pb component of
YPrPb or blue (for VGA bypass).
Composite Video / Blue Output
This pin outputs a selectable video signal. The output is designed to drive a 75
ohm doubly terminated load. The output can be selected to be composite video or
blue (for SCART type 1 connections)
Composite / Horizontal Sync
Provides composite sync in TV modes and horizontal sync in bypass
RGB mode. This pin is driven by the DVDD supply.
Buffered Clock Outputs / Vertical Sync
This output pin provides buffered crystal oscillator clock output or
VSYNC output in bypass RGB mode. This pin is driven by the DVDD
supply.
Crystal Input / External Reference Input
A parallel resonant 14.31818MHz crystal (+ 20 ppm) should be attached
between this pin and XO.
clock can drive the XI/FIN input.
The output can be selected to be the luminance
However, an external CMOS compatible
CH7019B
5