Analog Devices AD9843A - Manual (Page 9)

AD9843A
–9– REV. 0
CCD-MODE AND AUX-MODE TIMING
N–10 N–9 N–8 N–1 N
N N+1 N+2 N+9 N+10
t
ID
t
ID
t
S1 t
S2
t
CP
t
INH
t
OD t
H
NOTES:
1. RECOMMENDED PLACEMENT FOR DATACLK RISING EDGE IS BETWEEN THE SHD RISING EDGE AND NEXT SHP FALLING EDGE.
2. CCD SIGNAL IS SAMPLED AT SHP AND SHD RISING EDGES.
SHP
SHD
DATACLK
OUTPUT
DATA
CCD
SIGNAL
Figure 5. CCD-Mode Timing
CCD
SIGNAL
EFFECTIVE PIXELS
CLPOB
CLPDM
OPTICAL BLACK PIXELS
HORIZONTAL
BLANKING DUMMY PIXELS EFFECTIVE PIXELS
PBLK
NOTES:
1. CLPOB AND CLPDM WILL OVERWRITE PBLK. PBLK WILL NOT AFFECT CLAMP OPERATION IF OVERLAPPING CLPDM AND/OR CLPOB.
2. PBLK SIGNAL IS OPTIONAL.
3. DIGITAL OUTPUT DATA WILL BE ALL ZEROS DURING PBLK. OUTPUT DATA LATENCY IS 9 DATACLK CYCLES.
OUTPUT
DATA
EFFECTIVE PIXEL DATA OB PIXEL DATA DUMMY BLACK EFFECTIVE DATA
Figure 6. Typical CCD-Mode Line Clamp Timing
DATACLK
OUTPUT
DATA
VIDEO
SIGNAL
N
N+1
N+2
N+8
N+9
N–10 N–9 N–8 N–1 N
t
ID
t
CP
t
OD
t
H
Figure 7. AUX-Mode Timing