SAA7129 Philips Semiconductors, SAA7129 Datasheet - Page 28

• Manufacturer Part Number: SAA7129
• Description: Digital video encoder
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 44 BSTA values
Note
1. All IRE values are rounded up.
Table 45 Subaddresses 63H to 66H
Note
1. Examples:
2000 Mar 08
white-to-black = 92.5 IRE;
burst = 40 IRE; NTSC encoding
white-to-black = 92.5 IRE;
burst = 40 IRE; PAL encoding
white-to-black = 100 IRE;
burst = 43 IRE; NTSC encoding
white-to-black = 100 IRE;
burst = 43 IRE; PAL encoding
fixed burst amplitude with SECAM encoding
Digital video encoder
ADDRESS
BSTA = 0 to 2.02
BSTA = 0 to 2.82
BSTA = 0 to 1.90
BSTA = 0 to 3.02
a) NTSC-M: f
b) PAL-B/G: f
c) SECAM: f
63H
64H
65H
66H
CONDITIONS
sc
sc
sc
FSC[07:00]
FSC[15:08]
FSC[23:16]
FSC[31:24]
= 274.304, f
= 227.5, f
= 283.7516, f
BYTE
(1)
nominal
nominal
nominal
nominal
llc
llc
= 1716
llc
= 1728
recommended value: BSTA = 63 (3FH)
recommended value: BSTA = 45 (2DH)
recommended value: BSTA = 67 (43H)
recommended value: BSTA = 47 (2FH); default value after reset
These 4 bytes are used to program the subcarrier frequency. FSC[31:24] is the most
significant byte, FSC[07:00] is the least significant byte.
FSC
= 1728
f
f
sc
llc
= clock frequency (in multiples of line frequency)
= subcarrier frequency (in multiples of line frequency)
=
round
FSC = 569408543 (21F07C1FH).
FSC = 681786290 (28A33BB2H).
FSC = 705268427 (2A098ACBH).
------
f
f
sc
llc
2
32
28
; note 1
DESCRIPTION
ENCODING
SAA7128H; SAA7129H
Product specification