SAA7105H/V1,518 Trident Microsystems, Inc., SAA7105H/V1,518 Datasheet - Page 40

• Manufacturer Part Number: SAA7105H/V1,518
• Manufacturer: Trident Microsystems, Inc.

Specifications of SAA7105H/V1,518

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Philips Semiconductors
Table 63 Subaddresses 78H, 79H and 7CH
Table 64 Subaddresses 7AH to 7CH
Table 65 Subaddress 7CH
Table 66 Subaddresses 7EH and 7FH
Table 67 Subaddresses 81H to 83H
2004 Mar 04
TTXEVS
TTXEVE
FAL
LAL
TTX60
TTXO
LINE
PCL
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
Digital video encoder
first line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in even field
last line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in even field
first active line = FAL + 4 for M-systems and FAL + 1 for other systems, measured in lines
last active line = LAL + 3 for M-systems and LAL for other system, measured in lines
individual lines in both fields (PAL counting) can be disabled for insertion of teletext by the respective
bits, disabled line = LINExx (50 Hz field rate)
defines the frequency of the synthesized pixel clock PIXCLKO;
640
f
LOGIC
LEVEL
PIXCLK
line = (TTXEVS + 4) for M-systems
line = (TTXEVS + 1) for other systems
line = (TTXEVE + 3) for M-systems
line = TTXEVE for other systems
FAL = 0 coincides with the first field synchronization pulse
LAL = 0 coincides with the first field synchronization pulse
this bit mask is effective only if the lines are enabled by TTXOVS/TTXOVE and TTXEVS/TTXEVE
0
1
0
1
480 to PAL B/G: PCL = 1B5A73H (as by strapping pins)
=
enables NABTS (FISE = 1) or European TTX (FISE = 0); default after reset
enables world standard teletext 60 Hz (FISE = 1)
new teletext protocol selected; at each rising edge of TTXRQ a single teletext bit is
requested (see Fig.15); default after reset
old teletext protocol selected; the encoder provides a window of TTXRQ going HIGH; the
length of the window depends on the chosen teletext standard (see Fig.15)
PCL
---------- -
2
24
f
XTAL
8
DESCRIPTION
; f
XTAL
= 27 MHz nominal, e.g. 640
40
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
SAA7104H; SAA7105H
480 to NTSC M: PCL = 20F63BH;
TTXEVS = 04H; is default
after reset if strapped to PAL
TTXEVS = 05H; is default
after reset if strapped to
NTSC
TTXEVE = 16H; is default
after reset if strapped to PAL
TTXEVE = 10H; is default
after reset if strapped to
NTSC
REMARKS
Product specification