MT9M413 Micron Technology, MT9M413 Datasheet - Page 6

• Manufacturer Part Number: MT9M413
• Description: 1.3-MEGAPIXEL CMOS ACTIVE-PIXEL DIGITAL IMAGE SENSOR
• Manufacturer: Micron Technology

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PG_N and TX_N
resets the photodetectors for the entire pixel array. To
end integration, the TX_N signal simultaneously trans-
fers charge from photodetector to memory inside each
pixel for the entire pixel array. In sequential mode the
PG_N and the TX_N pulses must have a minimum
duration of 64 SYSCLK cycles. In simultaneous mode
the PG_N and TX_N pulses must have a duration of 64
SYSCLK cycles and be applied in the window between
the 66th and 129th SYSCLK cycles. Additionally, in
simultaneous mode between exposures a single
SYSCLK duration pulse must be applied each row dur-
ing the 130th clock cycle.
ROW_ADDR
externally via this 10-bit input bus. Must be valid for at
least 66 SYSCLK cycles, must be valid when
ROW_STRT_N is pulled low.
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MT9M413C36STC.fm - Ver. 3.0 1/04 EN
To start integration, the PG_N signal simultaneously
The address for the pixel row to be read is input
Controller
Controller
ROW_ADDR
ROW_ADDR
ROW_STRT_N
ROW_STRT_N
LD_SHFT_N
SYSCLK
SYSCLK
Figure 5: Example 1 - Row 4 of the MI-MV13 Being Digitized
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1. Reads the contents of pixel row specified by ROW_ADDR
1. Reads the contents of pixel row specified by ROW_ADDR
2. Converts pixel row signals to digital values
2. Converts pixel row signals to digital values
3. Stores digital values in ADC register (1280 x 10 bit)
3. Stores digital values in ADC register (1280 x 10 bit)
Decoders
Decoders
Control
Control
Logic/
Logic/
Control s
Control s
Control s
Control s
ADC
ADC
ADC
ADC
1.3-MEGAPIXEL CMOS ACTIVE-PIXEL
6
ROW_STRT_N
fied by ROW_ADDR, converts the pixel row signal to
digital value, and stores the digital value in ADC regis-
ter (1280 x 10-bit).
cycles. Must be valid for a minimum of two clock
cycles and a maximum of 100 clock cycles.
ROW_DONE_N
been pulled low the sensor acknowledges the comple-
tion of a row read operation/digitization by sending
out a low going pulse on this pin. Valid for two clock
cycles.
Column Parallel 10 -bit
Column Parallel 10 -bit
This signal reads the contents of the pixel row speci-
This process is completed in 128-129
128-129
Column Parallel 10 -bit
Column Parallel 10 -bit
1. In order to minimize the sensor power con-
Micron Technology, Inc., reserves the right to change products or specifications without notice.
ADC 640 x 1
ADC 640 x 1
PIXEL ARRAY
PIXEL ARRAY
sumption, the row processing circuitry
operates at SYSCLK/2. Therefore, depend-
ing on the user’s implementation, there will
be either 128 or 129 SYSCLK cycles between
the start of ROW_STRT_N and
ROW_DONE_N.
ADC 640 x 1
ADC 640 x 1
ROW 4
ROW 4
1
SYSCLK cycles after ROW_STRT_N has
DIGITAL IMAGE SENSOR
©2004 Micron Technology, Inc. All rights reserved.
Even
Even
Columns
Columns
Odd
Odd
Columns
Columns
1
SYSCLK