1.3-MEGAPIXEL CMOS ACTIVE-PIXEL

DIGITAL IMAGE SENSOR

09005aef806807ca

Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9M413C36STC.fm - Ver. 3.0 1/04 EN

11

©2004 Micron Technology, Inc. All rights reserved.

Figure 10:

Typical Example of TrueSNAP

Sequential Mode: Exposure Following

Readout

TrueSNAP Single Frame

The MI-MV13 can run in single frame or snap-shot

mode in which one image is captured. In single frame

mode integration must be preceded with a void frame

read

(selecting

all

addresses

and

applying

ROW_STRT_N) or PG_N and TX_N must be applied

together (for a minimum of 10 SYSCLK cycles) to clear

pixel and pixel memory. Holding PG_N and TX_N low

resets the photodioide (PG_N) and the analog memory

which is shorted to the photodiode by the TX_N

switch. To start integration both TX_N and PG_N are

released. To end integration and sample the signal into

memory TX_N is made low again for 10 clocks mini-

mum, up to 64 clocks (see Figure 6 on page 7). After

TX_N is returned to the high state there must be a

delay of >1 SYSCLK prior to lowering PG_N again to

erase charge in the photodetector.

Figure 11:

Typical Example of TrueSNAP Single

Frame Mode

ERS Mode

This mode is enabled by pulling PG_N high and

TX_N low.

Partial Scan Examples

The MI-MV13 can be partially scanned by sub-sam-

pling rows. The user may select which rows and how

many rows to include in a partial scan. For example,

with a 66-megahertz clock, a row time is approxi-

mately 2 microseconds, resulting in the following pos-

sibilities:

1 row in frame: 500,000 frames per second

2 rows in frame: 250,000 frames per second

10 rows in frame: 50,000 frames per second

100 rows in frame: 5,000 frames per second

256 rows in frame: 2,000 frames per second

512 rows in frame: 1,000 frames per second

1,024 rows in frame: 500 frames per second ...etc

Readout

Time

ROW_ADDR

1023

0

PG_N

TX_N

Readout

Exposure

time

Exposure

time

TIME

ROW_ADDR

1023

0

PG_N

TX_N

EXPOSURE TIME

READOUT

“SLEEP” STATE

“SLEEP” STATE

TIME

ROW_ADDR

1023

0

PG_N

TX_N

EXPOSURE TIME

READOUT

“SLEEP” STATE

“SLEEP” STATE

Table 3:

Pin Description

PIN NUMBER(S)

SIGNAL NAME

FUNCTION

DATA [99:0]

Pixel data output bus that is ten pixels (100 bits) wide.

Bit 0 is the LSB (least significant bit) of the lowest order

pixel (See Table 2, Pixel Array, on page 7). In the group of ten pixels

being output, bit 9 is the MSB (most significant bit).

T13

DATA0

U14

DATA1

V15

DATA2

T14

DATA3

V16

DATA4