TLC8044 Datasheet, PDF (27/32 Pages) Texas Instruments – 12-BIT ANALOG-TO-DIGITAL INTERFACE FOR CHARGE-COUPLED DEVICE IMAGE SENSORS FOR SCANNERS

TLC8044
12-BIT ANALOG-TO-DIGITAL INTERFACE FOR
CHARGE-COUPLED DEVICE IMAGE SENSORS FOR SCANNERS
SLAS128 – JUNE 1997
PRINCIPLES OF OPERATION
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
MCLK
VSMP
Video Sample
R, G, or B Input
Video
POC11 – POC0
PSC11 – PSC0
ONE
n –2
ÏÏ ^n–1
n
n +1
n +2
n –2
n –2
n –2
Ï_{n –1}
Ï_{n –1}
ÏÏ_n–1
OP15 – OP0
CC0†
CC1†
Pixel Period
MCLK
VSMP
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Video Sample
R, G, or B Input
Video
POC11 – POC0
n
PSC11 – PSC0
n
ONE
n
n +1
n +2
n +1
n +2
n +1
n +2
OP15 – OP0
CC0†
n –2
n –1
n
n +1
n +2
CC1†
† _{The CC(10) output state is defined via the serial bus in monochrome mode.}
Figure 16. System Timing – Monochrome Mode
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