TDA8775 Datasheet, PDF (8/16 Pages) NXP Semiconductors – Triple 10-bit video Digital-to-Analog Converter DAC

Philips Semiconductors
Triple 10-bit video Digital-to-Analog
Converter (DAC)
Preliminary specification
TDA8775
Table 1 Input coding and DAC output currents (typical values)
BINARY INPUT
SYNC
0
1
0
1
BLANK
0
0
1
1
DATA
XXH
XXH
00H
−
3FFH
00H
−
3FFH
CODE
−
−
0
−
1023
0
−
1023
DAC OUTPUT CURRENT
(mA)
SLT = 1; R_L = 37.5 Ω
R, B
Channels
G Channel
0
0
1.44
−
19.05
1.44
−
19.05
0
7.62
1.44
−
19.05
9.05
−
26.67
DAC OUTPUT CURRENT
(mA)
SLT = 0; R_L = 150 Ω
R, B
Channels
G Channel
0
0
0
1.90
0.36
0.36
−
−
4.76
4.76
0.36
2.26
−
−
4.76
6.67
handbook, full pagewidth
REFERENCE
WHITE
SYNC
PERIOD
VIDEO PICTURE DATA
660 mV 1 V
330 mV
REFERENCE
BLACK
BLANKING LEVEL
SYNC LEVEL ⁽¹⁾
SET-UP
LEVEL
GREY
SCALE
40 IRE UNITS
BLANK
SYNC ⁽¹⁾
(1) Sync only on green channel.
1996 Aug 14
Fig.3 Video signal diagram.
8
100 IRE
UNITS
MGD630