參數(shù)資料
型號(hào)： MCM20027IBMN
廠商： MOTOROLA INC
元件分類： 圖像傳感器
英文描述： Color SXGA Digital Image Sensor 1280 x 1024 pixel progressive scan solid state image sensor with integrated CDS/PGA/ADC, digital programming, control
中文描述： IMAGE SENSOR-CMOS, 10fps, 0.20-2.80V, SQUARE, SURFACE MOUNT
封裝： CERAMIC, LCC-48
文件頁(yè)數(shù)： 10/74頁(yè)
文件大?。?/td> 973K
代理商： MCM20027IBMN
MOTOROLA
Revision 8.0 - 28 November 2001 : MCM20027
10
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
ImageMOS
Figure 4. On-chip Bayer CFA
Figure 5. a) 15 degrees acceptance angle
b)Improvement in pixel sensitivity results from fo-
cusing incident light on photo sensitive portions of
the pixel by using microlenses
3.0 Frame Capture Modes
There exists two frame capture modes:
1) Continuous Frame Rolling Shutter mode (CFRS)
2) Single Frame Rolling Shutter mode (SFRS)
The sensor can be put into either one of the aforemen-
tioned modes by writing either “1” or “0” to Bit 6 of
Cap-
ture Mode Control Register, (Table 29), on page 48
.
3.1 Continuous Frame Rolling Shutter capture
(CFRS) [Default]
The default mode of image capture is the “Continuous
Frame Rolling Shutter” capture mode (CFRS). This
mode will yield frame rates up to 10fps at 13.5 MHz
MCLK. In this mode the image integration and row read-
out take place in parallel. While a row of pixels is being
read out, another row(s) are being integrated. Readout
of each row follows the Integration of that row. There-
fore the Integration of the rows are staggered out due to
the Readout of sequential rows occurring one after the
other (see
“Integration Time in CFRS mode:” on
page 13
).
In CFRS, after one frame has completed integrating,
the first row of the second frame automatically begins
integrating. The readout of the rows also follow the
same routine. The waveforms depicting the CFRS out-
put data stream refer to
Figure 6, on page 11
and
Figure
7, on page 12
.
3.1.1 CFRS Video Encoded Data stream
The
Pixel Data Stream Signal Control Register, (Table
53), on page 62
allows the user to select how the output
pixel data stream in Continuous Frame Rolling Shutter
mode is encoded/formatted. In default mode, internally
generated signals SOF, VCLK, HCLK etc. drive the in-
tegration and readout of the pixel data frames but only
the valid pixel data is readout of the sensor. When a “1”
is written to bit 5 of the
Pixel Data Stream Signal Control
Register, (Table 53), on page 62
, it causes the output
pixel data to be encoded with SOF, VCLK and End Of
Frame signals. It accomplishes this by attaching the pix-
el data with certain predefined signal data. The
Video
Encoded Signal Definitions, (Table 2), on page 10
de-
fines the data that represents the SOF, VCLK and End
of Frame signals.
R
R
R
R
G1
G1
G1
G1
G2
G2
G2
B
B B
B
G2
B
B
Iris
microlenses
15
o
15
o
A
B
Signal
Description
Data
SOF
Start of Row read-
out (i.e.. Readout of
Row 1)
3FF3FF3FF3FF
VCLK
Start of Row read-
out of Rows 2+
3FF3FF000000
End Of
Frame
Readout of last Row
complete
000000000000
Table 2. Video Encoded Signal Definitions
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