Features: • 256 ROM fonts (Each font consists of 12 x 18 dots.)• Full Screen Memory Architecture• Wide range PLL available (15 kHz - 120 kHz)• Programmable vertical height of character• Programmable vertical and horizontal positioning• Character color selection ...
S5D2508A01: Features: • 256 ROM fonts (Each font consists of 12 x 18 dots.)• Full Screen Memory Architecture• Wide range PLL available (15 kHz - 120 kHz)• Programmable vertical height of...
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PinoutDescriptionThe S5D2501F01-D0 is designed as one kind of OSD processor that can be used to di...
Parameters |
Symbol |
Value |
Units | ||
Min. |
Typ. |
Max. | |||
Maximum Supply Voltage |
VDD |
- |
- |
7.0 |
V |
Input Voltage |
VI |
- |
- |
7.0 |
V |
Operating Temperature Range |
TOPR |
-20 |
- |
70 |
|
Storage Temperature Range |
TSTG |
-40 |
- |
125 |
|
Power Dissipation |
PD |
- |
- |
1200 |
mW |
The S5D2508A01 is used to display some characters or symbols on a screen of monitor. Basically, the operation is to control the internal memory on chip and generate the R,G,B signals for some characters or symbols. The R,G,B signals are synchronized with the horizontal sync. Then the R,G,B signals are mixed with the main video signal in the Video Amp IC.
The font data for characters or symbols of S5D2508A01 are stored in the internal ROM. This stored data are accessed and controlled by the control data from a micro controller. The control data are transmitted through the I2C bus. All timing control signals including the system clock are synchronized with the horizontal sync.
Therefore there is a PLL circuitry on chip.