M64285FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

部品番号

コンポーネント説明

メーカー

M64285FP

CMOS Image Sensor (Image inputting systems for gaming devices, Toys, PC interface systems)

MITSUBISHI ELECTRIC  

Technical Data Sheet

MITSUBISHI

PRELIMINARY

MITSUBISHI CMOS Image Sensor

M64285FP

11.6. Gain Setting Register, G (5 bits)

Register Range

Gain

Step

Number of Steps

00000 B ~ 10011 B

0 dB ~ 28.5 dB

1.5 dB

20

* The Register value of 5 figures is the arrangement of G4, G3, G2, G1, G0 in this order.

* [Gain] = [Register Value] x [Step]

* When the Gain is set to 0 dB ( G = 00000 ), the saturation output ( maximum signal

displacement from the black level ) is 2 V. This is the standard gain setting.

11.7. Black Level Output Voltage Setting Register, VREF (2 bits)

This register sets the output voltage corresponding to the image signal output value of 0.

VREF1

0

1

1

VREF0

1

0

1

Black Level

1.0 V

1.5 V

2.0 V

Remarks

Recommended for Normal Image Capture

Recommended for Edge Extraction Modes

11.8. Offset Subtraction Setting Register, OFST (5 bits)

Some image processing

application need to acquire

precisely the important

contrast information laying

Range Over

Optimum Range

Gain = (x 2)

in the high level part of the A/D Range

Gain = (x 2)

A/D conversion range. In

Vref

this case, by only setting

Offset Subtraction

the Gain higher, the output

easily exceed the A/D conversion range. M64285FP is able to subtract some offset from the

data before amplification. By means of this function, as shown in the figure, it becomes

possible to obtain high contrast image in the optimum range. OFST register decides the

magnitude of this offset. The output data is obtained after subtracting the value in the table

below from the image data, under the standard gain condition (0 dB). The offset value to be

subtracted is proportional to the gain. If there is no need of subtracting offset, as in the case

of capturing normal image in full range, set the OFST Register 00000.

Register Range

Offset

Step

Number of Steps

00000 B ~ 11111 B

0 V ~ 1.86 V

0.06 V

16

* The Register value of 5 figures is the arrangement of OFST4, OFST3, OFST2,

OFST1, OFST0 in this order.

* [Offset Value] = [Register Value] x [Step]

( 12 / 26 )

Specifications and information herein are subject to change without notice.

02 / 05 / 01

Ver. 2.2E_01

Share Link: