
–
 18 
–
CXD3609R
Control data:  D12  to  D15  MODE [Drive mode]
The CXD3609R realizes various drive modes using control data  D12  to  D15  MODE.
The drive mode-related bits are loaded to the CXD3609R and reflected at the falling edge of VR.
The details are described below.
The various basic drive modes are switched using the upper two bits  D12  and  D13  of the control data
MODE.
Draft mode is the mode called 2/4-line readout mode in the ICX274.
Monitoring mode is the mode called 2/8-line readout mode in the ICX274. This is a drive mode with an even
higher frame rate than draft mode that can be used for purposes such as monitoring and auto focus (AF).
Progressive scan mode is the ICX274 drive mode in which the data for all lines are read. Vertical transfer high-
speed sweep period present/not present can be selected.
See the ICX274 data sheet for details of the readout lines for other modes.
The periods and Timing Charts when each mode is driven with the internal SSG are listed below.
D14
0
1
0
1
Description of operation
(D13/12) = (0, 1)
(D13/12) = (0, 0)
Draft
Draft
Center scan 1
Center scan 2
D15
0
0
1
1
Monitoring
Monitoring
AF1
AF2
(D13/12) = (1, 0)
Progressive scan (high-
speed sweep not present)
Progressive scan (high-
speed sweep not present)
Center scan 3
Progressive scan (high-
speed sweep present)
(D13/12) = (1, 1)
Addition 1
Addition 1
Addition 1
Addition 1
Progressive scan
Progressive scan
–
 High-speed sweep 
–
Center scan 3
Draft
Addtion
Center scan 1
Center scan 2
Monitoring
AF1
AF2
Mode
Drive
frequency
fps
Internal SSG period
Hotizontal
Vertical
Normal
High-speed sweep
Frame shift
Readout
1920ck
2070ck
2352ck
Chart-11
Chart-13
Chart-12
1492H + 1860ck
1251H + 480ck
1741H + 1530ck
1563H + 1021ck 
×
 2
497H + 1260ck
625H + 1200ck
692H + 810ck
870H + 900ck
692H + 810ck
870H + 900ck
461H + 1230ck
580H + 601ck
461H + 1230ck
580H + 601ck
405H + 1470ck 
×
 2
510H + 1680ck
202H + 1323ck 
×
 2
255H + 840ck
101H + 1323ck
127H + 1596ck
Chart-1
Chart-4
Chart-7
Chart-7.1
Chart-2
Chart-10
Chart-5
Chart-5.1
Chart-6
Chart-6.1
Chart-3
Chart-8
Chart-8.1
Chart-9
Chart-9.1
Chart-23
Chart-29
Chart-25
Chart-26
Chart-27
Chart-28
Chart-24
Chart-30
—
Chart-4
Chart-16
—
Chart-15
—
Chart-17
Chart-18
—
Chart-20
—
Chart-19
—
Chart-21
Chart-22
28
36
28
36
28
36
28
36
28
36
28
36
28
36
28
36
28
36
28
36
10
15
30
20
30
60
120
V-Chart
H-Chart