Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

STPC4HEBI Datasheet(PDF) 75 Page - STMicroelectronics

Part No. STPC4HEBI
Description  X86 Core PC Compatible Information Appliance System-on-Chip
Download  93 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo 

STPC4HEBI Datasheet(HTML) 75 Page - STMicroelectronics

Zoom Inzoom in Zoom Outzoom out
 75 / 93 page
background image
DESIGN GUIDELINES
Release 1.5 - January 29, 2002
75/93
6.3.10. TV INTERFACE
The STPC integrates a voltage reference and
video DACs. The amount of external devices is
then limited to video buffers as described in the
Figure 6-15.
The connection from IREFx and VREFx up to the
20 ohms resistors must be as short as possible.
The constraint is the same for the connection from
VDDA_TV and VSSA_TV up to the decoupling
capacitances.
The resistors and capacitors of the amplifier stage
have to be as close as possible to the video buffer.
When the TV interface is not needed, the signals
RED, GREEN, BLUE, CVBS, IREF1, IREF2 can
be left unconnected, VDDA_TV must then be
connected to GND.
R,G,B,CVBS outputs:
. Ioutmax = 80.704 / Rref < 5mA
. Rload = 274 ohms
. Vout = {10-bit code} x Rload x 0.079 / Rref
Fine tuning of the maximum output level must be
done using the gain control registers 0x11 to 0x13
of the integrated Digital Encoder (write the value
0x0B for a gain of 109%).
Figure 6-15. Typical VGA implementation
20 1%
IREF1
VREF1
IREF2
VREF2
VDDA_TV
2.5V
10nF
100nF 22uF
DCLK
CVBS
RED
GREEN
BLUE
316 1%
27MHz
47pF
FBEAD
VSSA_TV
AGND
AGND
AGND
33
GND
3.3V
FBEAD
100nF
GND
same
as for
RED
AGND
15uH
AGND
AGND
AGND
526
1%
326
1%
478 1%
10
1%
AGND
VCCA
To the connector
75 1%
TSH74
5V
100nF 22uF
FBEAD
AGND
FBEAD
GND
VCCA
GND
Rref = 20K 1%


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn