Chrontel CH7034B Notes d'application - Page 7

Parcourez en ligne ou téléchargez le pdf Notes d'application pour {nom_de_la_catégorie} Chrontel CH7034B. Chrontel CH7034B 18 pages. Hdtv/vga/lvds encoder

Imprimer la page
CHRONTEL

Data Inputs
CH7034B can accept up to 24 data inputs, as shown in Figure 8, from a digital video port of a graphics controller.
The swing is defined by VDDIO (1.2 ~ 3.3V).
Unused Data input pins should be pulled low with 10kΩ resistors or shorted to Ground directly.

H/V Sync Pins
The horizontal/vertical sync pins can be used as inputs as shown in Figure 8.

DE/CSB
The DE/CSB pin is used as a data input indicator (Refer to Figure 8). When the pin is high, the input data is active.
When the pin is low, the input data is blanking.
If DE/CSB is not used, it can be left open or pulled down to the Ground.

GCLK
The GCLK input is the clock signal input to the device for using with the H, V, DE and D [23:0] data.
2.6

Miscellaneous Pins

• IRQ
This pin should be connected with graphic controller directly.
2.7

Video Output

206-1000-013
Rev1.4,
Graphics
Controller
Figure 8: CH7034B Data Input Pins
06/30/2020
82
GCLK
29
D[0]
28
D[1]
27
D[2]
26
D[3]
25
D[4]
21
D[5]
20
D[6]
19
D[7]
18
D[8]
17
D[9]
QFN
16
D[10]
15
D[11]
14
D[12]
13
D[13]
12
D[14]
8
D[15]
6
D[16]
5
D[17]
4
D[18]
3
D[19]
2
D[20]
1
D[21]
88
D[22]
87
D[23]
86
H/WEB
85
V
84
DE/CSB
AN-B013
7