NOII5FM1300A-QDC ON Semiconductor, NOII5FM1300A-QDC Datasheet - Page 22

• Manufacturer Part Number: NOII5FM1300A-QDC
• Manufacturer: ON Semiconductor

Specifications of NOII5FM1300A-QDC

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Global Shutter: Pixel Readout
Basic Operation
Y_START and Y_CLOCK must change on the falling edge of the
SYS_CLOCK (Tsetup and Thold > 7.5 ns). Make certain that the
pulse width is a minimum of one clock cycle for Y_CLOCK and
three clock cycles for Y_START. As long as Y_CLOCK is applied,
the sequencer stays in a suspended state. (See
T
generates the control signals to sample the pixel signal and pixel
reset levels (double sampling fpn-correction), and starts the
readout of one line. The row blanking time depends on the granu-
larity of the X-sequencer clock (see
T
NROF_PIXELS register is reached. PIXEL_VALID goes high
when the internal X_SYNC signal is generated, in other words
when the readout of the pixels is started. PIXEL_VALID goes low
Pixel Output
The pixel signal at the PXL_OUT1 output becomes valid after
five SYS_CLOCK cycles when the internal X_SYNC (start of
PIXEL_VALID output or external X_LOAD pulse) pulse is
asserted (see
T
T
T
(see
1
2
1
2
3
- Row blanking time
- 5 SYS_CLOCK cycles.
- Time for new X-pointer position upload in X_REG register
- Row blanking time: During this period, the X-sequencer
- Pixels counted by pixel counter until the value of
Windowing in X-Direction
Figure
24).
(seeTable
on page 24 for more details).
21).
Table 21
Figure 23. Global Shutter: Pixel Read Out
on page 22).
Rev. 9 | www.onsemi.com | Page 22 of 34
Figure
Figure 24. Pixel Output
23)
when the pixel counter reaches the value loaded in the
NROF_PIXELS register (after a complete row read out).
T
value loaded in the NROF_LINES register and stays high for one
line period (until the next falling edge of Y-CLOCK).
On Y_START the left Y-shift-register of the image core is loaded
with the YL-pointer that is loaded in to register YL_REG.
Advanced Operation:
It was observed during characterization of the IBIS5-1300 image
sensor that there are column non-uniformities in the image in
synchronous shutter mode, when the Y-readout pointer is still
selecting a line during the global reset for the next frame. To
avoid this problem, an advanced timing has been generated for
the synchronous shutter mode. See question 12 in
Frequently Asked Questions about the IBIS5 Device for more
information. The application note discusses the cause and
corrective action for this problem.
Table 21. Row Blanking Time as Function of X-Sequencer
Granularity
3
Granularity
- LAST_LINE goes high when the line counter reaches the
N
× 16
× 32
GRAN
× 4
× 8
= 35 × N
1120 × T
560 × T
140 × T
280 × T
GRAN
SYS_CLOCK
SYS_CLOCK
SYS_CLOCK
SYS_CLOCK
T
1
(µs)
× T
SYS_CLOCK
= 14.0
= 3.5
= 7.0
= 28.0
NOII5SM1300A
GRAN_X_SEQ
MSB/LSB
00
01
10
11
AN6004,