VX6953CB datasheet(65/107 Pages) STMICROELECTRONICS

номер детали	VX6953CB

подробное описание детали	5.1 megapixel EDOF camera module

PDF	107 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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65 / 107 page

8209023 Rev 5

65/107

VX6953CB

Video timing

Figure 26. Analogue gain register format

The following generic equation describes VX6953CB coarse gain behavior specified by the

analog gain description registers 0x008A - 0x0093:

where:

•

m1 = -1

•

c0 = 256

•

c1 = 256

Table 40 specifies the valid analog gain values for VX6953CB.

Also refer to section 6.3 of the SMIA1.0 specification document.

Table 40. Analog gain control

Gain value

(0x0204/0x0205)

Coarse gain code

[A7:A4]

Coarse analog

gain

Fine gain code

[A3:A2]

Fine analog gain

0x0000

0000

0.0 dB (x1.00)

N/A

0x0010

0001

0.6 dB (x 1.07)

N/A

0x0020

0010

1.2 dB (x1.1)

N/A

0x0030

0011

1.8 dB (x1.2)

N/A

0x0040

0100

2.5 dB (x1.3)

N/A

0x0050

0101

3.3 dB (x1.5)

N/A

0x0060

0110

4.1 dB (x1.6)

N/A

0x0070

0111

5.0 dB (x1.8)

N/A

0x0080

1000

6.0 dB(x2.0)

N/A

0x0090

1001

7.2 dB (x2.3)

N/A

0x00A0

1010

8.5 dB (x2.7)

N/A

0x00B0

1011

10.1 dB (x3.2)

N/A

0x00C0

1100

12.0 dB (x4.0)

N/A

0x00D0

1101

14.5 dB (x5.3)

N/A

0x00E0

1110

18.1 dB (x8.0)

N/A

0x00E4

1110

fine ctrl

19.2 dB (x9.1)

0x00E8

1110

fine ctrl

20.6 dB (x10.7)

0x00EC

1110

fine ctrl

22.1 dB (x12.8)

0x00F0

1111

24.1 dB (x16.0)

N/A

A7 A6 A5 A4

A1 A0

A15 A14 A13 A12 A11 A10

Coarse gain

Fine gain

Not used

gain

( 1x

⋅

⁄

)

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