NOIL1SM4000A-GDC ON Semiconductor, NOIL1SM4000A-GDC Datasheet - Page 15

• Manufacturer Part Number: NOIL1SM4000A-GDC
• Description: LUPA4000 MONO PGA127
• Manufacturer: ON Semiconductor

Specifications of NOIL1SM4000A-GDC

• Lead Free Status / Rohs Status: Supplier Unconfirmed

X and Y Addressing
Figure 16 gives the timing to select the lines sequentially.
This is done with a Clock_y and Sync_y signal. The Sync_y
signals synchronizes the y-addressing and initializes the
y-address selection registers. The start address is the address
downloaded in the SPI multiplied by two.
output amplifiers. Before the pixels of the selected line can
be multiplexed onto the output amplifiers, wait for a certain
time, indicated as the ROT shown in Figure 16. This is the
Table 7. READOUT TIMING SPECIFICATIONS
To read out a frame, the lines are selected sequentially.
As soon as a new line is selected, it must be read out by the
Symbol
a
b
c
d
e
g
h
f
Sync_Y
Sync_Y−Clock_Y
Clock_Y−Sync_Y
NoRowSel
Pre_col
Sh_col
Voltage averaging
Sync_X−Clock_X
Name
> 20 ns
> 0 ns
> 0 ns
> 50 ns
> 50 ns
200 ns
> 20 ns
> 0 ns
Value
Figure 16. X and Y Addressing
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15
Sync_y signal is dominant and from the moment it occurs,
the y-address registers are initialized. If a Sync_y pulse is
given before the end of the frame is reached, only a part of
the frame is read. To obtain a correct initialization, Sync_y
must contain at least one rising edge of Clock_y when it is
active.
time to get the data stable from the pixels to the output bus
before the output stages. This ROT is in fact lost time and
rather critical in a high-speed sensor. Different timings to
reduce this ROT are explained later in this section.
These 2048 pixels must be read out by one (or two) output
amplifier.
frequency. To obtain a pixel rate of 66 MHz, apply a pixel
clock Clock_x of 33MHz. When only one analog output is
used, two pixels are output every Clock_x period. When
Clock_x is high, the first pixel is selected; when Clock_x is
low, the next pixel is selected. Consequently, during one
complete period of Clock_x two pixels are read out by the
output amplifier.
pixel is presented at each output.
On the rising edge of Clock_y the next line is selected. The
During the selection of one line, 2048 pixels are selected.
The pixel rate is the double frequency of the Clock_x
If two analog outputs are used each Clock-X period one