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SAA7182

Digital Video Encoder (EURO-DENC)

Philips Electronics 

Philips Semiconductors

Digital Video Encoder (EURO-DENC)

Preliminary specification

SAA7182; SAA7183

Table 16 Subaddress 62A

DATA BYTE LOGIC LEVEL

DESCRIPTION

RTCE

0

no real time control of generated subcarrier frequency

1

real time control of generated subcarrier frequency through SAA7151B or SAA7111

(timing see Fig.16)

Table 17 Subaddress 62B

DATA BYTE

BSTA

DESCRIPTION

CONDITIONS

amplitude of colour burst;

input representation in

accordance with

“CCIR 601”

white-to-black = 92.5 IRE;

burst = 40 IRE; NTSC encoding

BSTA = 0 to 1.25 × nominal(1)

white-to-black = 92.5 IRE;

burst = 40 IRE; PAL encoding

BSTA = 0 to 1.76 × nominal(2)

white-to-black = 100 IRE;

burst = 43 IRE; NTSC encoding

BSTA = 0 to 1.20 × nominal(3)

white-to-black = 100 IRE;

burst = 43 IRE; PAL encoding

BSTA = 0 to 1.67 × nominal(4)

fixed burst amplitude with SECAM encoding

Notes

1. Recommended value: BSTA = 102 (66H).

2. Recommended value: BSTA = 72 (48H).

3. Recommended value: BSTA = 106 (6AH).

4. Recommended value: BSTA = 75 (4BH).

REMARKS

Table 18 Subaddress 63 to 66 (four bytes to program subcarrier frequency)

DATA BYTE

DESCRIPTION

CONDITIONS

FSC0 to FSC3

ffsc = subcarrier frequency

(in multiples of line

frequency);

fllc = clock frequency (in

multiples of line frequency)

FSC

=



round



f-f-f-l-sl--c-c

×

232







see note 1

REMARKS

FSC3 = most significant byte

FSC0 = least significant byte

Note

1. Examples:

a) NTSC-M: ffsc = 227.5, fllc = 1716 → FSC = 569408543 (21F07C1FH).

b) PAL-B/G: ffsc = 283.7516, fllc = 1728 → FSC = 705268427 (2A098ACBH).

c) SECAM: ffsc = 274.304, fllc = 1728 → FSC = 681786290 (28A33BB2H).

1996 Jul 08

18

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