ICX262 SONY [Sony Corporation], ICX262 Datasheet - Page 18

• Manufacturer Part Number: ICX262
• Description: Timing Generator for Frame Readout CCD Image Sensor
• Manufacturer: SONY [Sony Corporation]

Control data: [AF drive]
The CXD2497R controls the drive of the vertical cut-out area of line in AF1/AF2 mode by using control data
mode cannot support operation such as electrical image stabilization.
AF drive bits are loaded to the CXD2497R and reflected at the falling edge of VD. As shown in the figure
below, first, the fixed stage is swept at high speed, and it goes to readout period and vertical OB period. Then
normal transfer is performed equivalent to draft mode from the frame shift of the stage specified by the serial
interface data to the timing of the falling edge of the next VD.
Therefore, the number of frame shift stages applied to CDAT and the control by VD period are conditions for
its application.
The number of high-speed sweeps are different according to the selected mode. It is specified as follows.
Its definition area is specified as follows.
The frame shift data is expressed as shown in the table below using D16 to D23 CDAT.
D16 to D23 CDAT. This mode has a function on purpose to raise frame rate for auto focus (AF), and this
MSB
D23 D22 D21 D20 D19 D18 D17 D16
0
AF1 mode: 138 stages (0 to 7H)
AF2 mode: 208 stages (0 to 11H)
AF1 mode: 00h ≤ CDAT ≤ FFh (11 to 23H)
AF2 mode: 00h ≤ CDAT ≤ FFh (14 to 27H)
MODE
CDAT
1
V1A
Vck
VD
6
High-speed sweep
1
00h
0
0
1
0
9
0
LSB
1
Normal transfer
FFh
4
– 18 –
CDAT is expressed as 69h .
Frame shift
00h
0
CXD2497R