TH7888A Datasheet, PDF (2/21 Pages) ATMEL Corporation – Area Array CCD Image Sensor (1024 x 1024 Pixels with Antiblooming)

Figure 1. TH7888A General Sensor Organization
ΦP1,2,3,4
ΦM1,2,3,4
ΦA
VA
1024 x 1024
Image Area
VDR
ΦR
VDD1
VOS1
VS1
VGS
1024 x 1024
Memory Area
Bi-directional Serial Register
ΦL1-6
ΦM
VDR
ΦR
VDD2
VOS2
VS2
VGS
Functional Overview
Extra dark lines are provided for use as dark references or for smearing digital correc-
tion.
Extra dark pixels are provided for dark line reference clamping. Each frame consists of
1056 video lines:
• 1 dummy line
• 12 useful dark reference lines (with optical shield)
• 3 isolation lines
• 1024 useful lines
• 3 isolation lines
• 12 dark reference lines (with optical shield)
• 1 dummy line
Each video line is made up of 546 or 1058 elements, depending on the readout mode
(single or dual port mode):
• 12 inactive prescan elements
• 1 isolation prescan element
• 16 useful dark references (with optical shield)
• 5 isolation elements
• 512 or 1024 useful video pixels
2 TH7888A
1999A–IMAGE–09/03