NOIL1SM0300A-QDC ON Semiconductor, NOIL1SM0300A-QDC Datasheet - Page 19

• Manufacturer Part Number: NOIL1SM0300A-QDC
• Manufacturer: ON Semiconductor

Specifications of NOIL1SM0300A-QDC

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Readout Time Smaller Than or Equal to Integration Time
uploaded with the smallest possible value, this is the value
’2’. The frame rate is determined by the integration time.
The readout time is equal to the integration time, the
FT_TIMER register is uploaded with a value equal to the
window size to readout plus one. In case the readout time is
smaller than the integration time the FT_TIMER register is
uploaded with a value bigger than the window size.
Readout Time Larger Than Integration Time
time, the RES_LENGTH register needs to be uploaded with
a value larger than two to compensate for the larger readout
Integration Timing in Slave Mode
TS_TIMER, and FT_TIMER are ignored. The integration
timing is now controlled by the pins INT_TIME_1,
INT_TIME_2 and INT_TIME_3, which are now active low
input pins.
integration timing is illustrated in Figure 19. The pixel is
reset as soon as IN_TIME_1 is low (active) and
INT_TIME_2 and INT_TIME_3 are high. The integration
starts when INT_TIME_1 becomes high again and during
this integration additional (lower) reset can be given by
In this situation the RES_LENGTH register can be
In case the readout time is larger than then integration
In slave mode, the registers RES_LENGTH, DS_TIMER,
The relationship between the input pins and the
FRAME_ VALID
FRAME_VALID
RESET
PIXEL
RESET
PIXEL
Figure 17. Readout Time Smaller than Integration Time
FOT
Figure 18. Readout Time Larger than Integration Time
FOT
Readout
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Total Integration Time
FT_TIMER
FT_TIMER
Readout
19
Integration Time
readout the FRAME_VALID signal goes high to indicate the
time needed to read out the sensor.
(longer integration time than read out time) the following
parameters should be set: The integration time is set by the
FT_TIMER register. The actual windowing in Y is achieved
when the surrounding system discards the lines which are
not desired for the selected window.
time. The FT_TIMER register must be set to the desired
window size (in Y). Only the RES_LENGTH register needs
to be changed during operation. Figure 18 shows this
example.
activating INT_TIME_2 and INT_TIME_3 separately. At
the end of the desired integration time the frame transfer
starts by making all 3 INT_TIME pins active low
simultaneously. There is always a small delay between the
applied external signals and the actual internally generated
pulses. These delays are also shown in Figure 19.
input pins still need to be given. By setting the NDR bit to
“1” the internal pixel reset pulses are suppressed but the
external pulses are still needed to have the correct timing of
the frame transfer.
Figure 17 shows this principle. While the sensor is being
When windowing in Y direction is desired in this mode
In case non destructive readout is used, the pulses on the
FOT
FOT