ASX340AT datasheet(2/54 Pages) ONSEMI

2 / 54 page

ASX340AT

www.onsemi.com

TABLE 1. KEY PARAMETERS

Parameter

Typical Value

Pixel Size and Type

5.6 mm x 5.6 mm active pinned-photodiode with high-sensitivity mode for low-light

conditions

Sensor Clear Pixels

728 H x 560 V (includes VGA active pixels, demosaic and lens alignment pixels)

NTSC Output

720 H x 487 V

PAL Output

720 H x 576 V

Optical Area (Clear Pixels)

4.077 mm x 3.136 mm

Optical Format

1/4-inch

Frame Rate

50/60 fields/sec

Sensor Scan Mode

Progressive scan

Color Filter Array

RGB standard Bayer

Chief Ray Angle (CRA)

0°

Shutter Type

Electronic rolling shutter (ERS)

Automatic Functions

Exposure, white balance, black level offset correction, flicker detection and avoidance,

color saturation control, on the-fly defect correction, aperture correction

Programmable Controls

Exposure, white balance, horizontal and vertical blanking, color, sharpness, gamma

correction, lens shading correction, horizontal and vertical image flip, zoom, windowing,

sampling rates, GPIO control

Overlay Support

Utilizes SPI interface to load overlay data from external flash/EEPROM memory with the

following features:

− Available in Analog output and BT656 Digital output

− Overlay Size 360 x 480 pixel rendered into 720 x 480 (NTSC) or 720 x 576 (PAL)

− Up to four (4) overlays may be blended simultaneously

− Selectable readout: Rotating order user-selected

− Dynamic scenes by loading pre-rendered frames from external memory

− Palette of 32 colors out of 64 000

− 8 colors per bitmap

− Blend factor dynamically-programmable for smooth transitions

− Fast update rate of up to 30 fps

− Every bitmap object has independent x/y position

− Statistic Engine to calibrate optical alignment

− Number Generator

ADC

10-bit, on-chip

Output Interface

Analog composite video out, single-ended or differential; 8-, 10-bit parallel digital output

Output Data Formats1

Digital: Raw Bayer 8-,10-bit, CCIR656, 565RGB, 555RGB, 444RGB

Data Rate

Parallel: 27 MHz Pixel clock

NTSC: 60 fields/sec

PAL: 50 fields/sec

Control Interface

Two-wire I/F for register interface plus high-level command exchange. SPI port to

interface to external memory to load overlay data, register settings, or firmware

extensions.

Input Clock for PLL

27 MHz

SPI Clock Frequencies

1.6875 – 18 MHz, programmable

Supply Voltage

Analog: 2.8 V + 5%

Core: 1.8 V + 5% (2.8 V + 5% power supply with off-chip bypass transistor generates a

1.70 − 1.95 V core voltage supply, which is acceptable for performance.)

Supply Voltage

IO: 2.8 V + 5%

Power Consumption

Analog Output Only

Full resolution at 60 fps: 291 mW

Digital Output Only

Full resolution at 60 fps: 192 mW

Package

63-BGA, 7.5 mm x 7.5 mm, 0.65 mm pin pitch

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