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参数资料
| 型号： | OM5730 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | STB5860 (Set-Top Box) STB concept(STB5860机顶盒初步设计) |
| 中文描述： | STB5860（机顶盒）机顶盒的概念（STB5860机顶盒初步设计） |
| 文件页数： | 13/20页 |
| 文件大小： | 80K |
| 代理商： | OM5730 |
1999 Aug 25
13
Philips Semiconductors
Preliminary specification
STB5860 (Set-Top Box) STB concept
OM5730
5.5
Application layer
This layer has been limited only to demonstrate the
possibilities that can be implemented at the application
layer.
5.5.1
T
OP LEVEL MENU
Main menu options:
Installation menu
Tuning menu
Feature demonstration menu.
5.5.2
I
NSTALLATION MENU
The installation menu is used to select the board
configuration options. The selected options are stored to
NVM.
Table 4
Board configuration options
Note
1.
With non-DiSEqC LNBs the control is simply by
14/18 V switching for polarity and in the case of a dual
band the use of 22 kHz signal (no modulation)
selecting the high band. With DiSEqC LNBs the
control is by sending DiSEqC commands via
modulation in the 22 kHz signal, (this means DiSEqC
level 1).
5.5.3
T
UNING MENU
5.5.3.1
Transponder setup
The transponder can be setup automatically or manually.
Selecting the automatic option gives the user the
possibility to sweep the band over a particular frequency
range at all symbol rates. All transponders found will be
logged and stored to NVM. The sweep can be started by
pressing the start button via the user controls.
Selecting the automatic network option will give the user
the possibility to sweep the band over a particular
frequency range at a user defined symbol rate.
The Network Information Table (NIT) from the first
transponder found will be read and the services known in
this NIT table will be logged and stored to NVM.
Table 5
Program setup
Selecting the manual option provides the user with the
ability to enter additional transponder data or to adjust
transponders found with an auto setup. To add a
transponder the correct frequency, symbol rate,
polarisation and Forward Error Correction (FEC) rate are
required.
ITEM
CONFIGURATION OPTION
LNB setup
on/off DiSeqC LNB and single or dual
band; note 1
Video standard PAL or NTSC; default PAL
SCART
pin 16 control (RGB or composite
video signalled)
Display
allows selection of 16 : 9 or 4 : 3
TV screen
ITEM
OPERATION
Source
The source of the transport stream can be
selected between tuner and stream server. In
tuner mode the ability to change the selected
transponder is available.
Shows the current transport stream and the
possible audio PIDS for the selected service.
The service can be selected and the audio
PID chosen.
Listing
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