saa569x NXP Semiconductors, saa569x Datasheet - Page 68

• Manufacturer Part Number: saa569x
• Description: Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. In basic Progressive Scan mode the information displayed in Field A is identical to the information displayed in
2. In Progressive Scan with Interlace mode the information displayed in Field A is identical to the formation displayed
2002 May 06
handbook, full pagewidth
handbook, full pagewidth
Basic Progressive Scan mode
480p
525p
625p
Interlaced Progressive Scan mode
1050i
1080i
1250i
Enhanced TV microcontrollers with
On-Screen Display (OSD)
Field B. The horizontal and vertical timings between the two fields are also identical so the hardware will force the
DISP FIELD bit to toggle every Vsync enabling software to distinguish a notional display field.
in Field B. The horizontal and vertical timing between the two fields however is different so that an interlaced display
is achieved.
NAME
Vsync
DISP FIELD
Vsync
DISP FIELD
60 Hz
60 Hz
50 Hz
60 Hz
60 Hz
50 Hz
Fig.26 1H/1V: normal interlaced modes (50/60 Hz).
A Field
A Field
FREQUENCY
Fig.27 2H/2V: field doubling (100/120 Hz).
A Field
B Field
A Field
68
All of the display lines (odd
and even) are displayed
every field (A + B)
Progressive Scan but the
identical displays are
interlaced (A + B)
FIELD FREQUENCY
A Field
B Field
B Field
SAA567x; SAA569x
B Field
B Field
forced to Vsync
forced to Vsync
forced to Vsync
Vsync
Vsync
Vsync
DISPLAY FIELD BIT
TOGGLE RATE
(2)
(2)
(2)
Objective specification
MGW083
MGW084
(1)
(1)
(1)