AD9845BJST Analog Devices Inc, AD9845BJST Datasheet - Page 9

• Manufacturer Part Number: AD9845BJST
• Description: IC CCD SIGNAL PROC 12BIT 48-LQFP
• Manufacturer: Analog Devices Inc
• Type: CCD Signal Processor, 12-Bitr

Specifications of AD9845BJST

• Rohs Status: RoHS non-compliant
• Input Type: Logic
• Output Type: Logic
• Interface: 3-Wire Serial
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Current - Supply: -

CCD MODE AND AUX MODE TIMING
REV. B
OUTPUT
SIGNAL
CLPDM
CLPOB
DATACLK
DATACLK
DATA
PBLK
OUTPUT
OUTPUT
CCD
SIGNAL
SIGNAL
VIDEO
DATA
DATA
CCD
SHP
SHD
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 NINE DATACLK CYCLES.
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.
EFFECTIVE PIXELS
EFFECTIVE PIXEL DATA
t
ID
t
S1
N–10
N–10
t
INH
t
t
OD
OD
N
N
t
ID
t
ID
Figure 6. Typical CCD Mode Line Clamp Timing
OPTICAL BLACK PIXELS
N–9
t
N–9
S2
N+1
OB PIXEL DATA
Figure 7. AUX Mode Timing
Figure 5. CCD Mode Timing
N+1
t
H
t
H
t
CP
t
N–8
CP
N–8
N+2
–9–
N+2
HORIZONTAL
BLANKING
N+8
DUMMY PIXELS
DUMMY BLACK
N–1
N–1
N+9
N+9
EFFECTIVE PIXELS
EFFECTIVE DATA
AD9845B
N
N
N+10