ASX340 datasheet(10/78 Pages) ETC2

10 / 78 page

PDF: 171981479/Source: 8304342517

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ASX340/MT9V139_DS Rev. C Pub. 3/11 EN

ASX340/MT9V139: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor

Architecture

Aptina Confidential and Proprietary

Preliminary

System Block Diagram

The system block diagram will depend on the application. The system block diagram in

Figure 2 shows all components; optional peripheral components are highlighted. The

optional microcontroller controls the ASX340/MT9V139 sensor using the two-wire serial

bus. Optional components will vary by application. For further details, see the ASX340/

MT9V139 Register and Variable Reference.

Figure 2:

System Block Diagram

SPI

Serial Data

EEPROM/Flash

1KB - 16MB

LP Filter

27 MHz

DAC _POS

μC

2WIRE I/F

Composite

Video

PAL /NTSC

EXTCLK

System Bus

4.7k

DAC_REF

DAC _NEG

Optional

XTAL

75Ω

RESET_BAR

FRAME _SYNC

PIXCLK

FRAME_VALID

LINE_VALID

CCIR 656/

GPO

DOUT_LSB0, 1

DOUT[7:0]

VDD (1.8V )

VAA (2.8V)

VAA _PIX (2.8V)

2.8V

VDD_IO (2.8V)

VDD_PLL (2.8V)

VDD_DAC (2.8V)

VREG_BASE

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