saa7103h-v4 NXP Semiconductors, saa7103h-v4 Datasheet - Page 18

• Manufacturer Part Number: saa7103h-v4
• Description: Digital Video Encoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
SAA7102_SAA7103_4
Product data sheet
7.18 Input levels and formats
Due to the limited amount of memory it is not possible to get valid vertical scaler settings
only from the formulae above. In some cases it is necessary to adjust the vertical offsets
or the scaler increment to get valid settings.
They are organized in the following way: The tables are separate for the standard to be
encoded, the input resolution and three different anti-flicker filter settings. Each table
contains 5 vertical sizes with 5 different offsets. They are intended to be selected
according to the current TV set. The corresponding horizontal resolutions of 640 pixels
give proper aspect ratios. They can be adjusted according to the formulae above. The
next line gives a minimum size intended to fit on the screen under all circumstances. The
corresponding horizontal resolution is 620 pixels. Overscan is only possible with an input
resolution of 800 × 600 pixels. Where possible, the corresponding settings are given on
the last lines of the tables.
The SAA7102; SAA7103 accepts digital Y, C
in accordance with “ITU-R BT.601”; see
For C and CVBS outputs, deviating amplitudes of the color difference signals can be
compensated for by independent gain control setting, while gain for luminance is set to
predefined values, distinguishable for 7.5 IRE set-up or without set-up.
The RGB, respectively C
(GY) and color difference signals (GCD). Reference levels are measured with a color bar,
100 % white, 100 % amplitude and 100 % saturation.
Rev. 04 — 18 January 2006
R
-Y-C
B
path features an individual gain setting for luminance
Table
Table 9
B
, C
27.
SAA7102; SAA7103
R
or RGB data with levels (digital codes)
to
Table 26
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
show verified settings.
Digital video encoder
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