AS0260CSSC28SUD20 datasheet(61/83 Pages) ONSEMI

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AS0260 DS Rev. G Pub. 5/15 EN

©Semiconductor Components Industries, LLC, 2015.

AS0260: 1/6-Inch 1080P High-Definition (HD) System-On-A-Chip (SOC) Digi-

tal Image Sensor

The flicker avoidance configuration variable allows the host to select between these two

modes. Note that if the outdoor mode is disabled, bright scenes may result in an overex-

posed image, as the minimum exposure time may not prevent saturation.

Multi-Camera Sync

The AS0260 supports more than one device to be connected in a “daisy-chain” type

configuration. One of the devices will act as the master and the remainder will be slaves.

A typical connection diagram is shown inFigure 33. All of the AS0260 that are to commu-

nicate are:

• Connected in a daisy-chain using SADDR as an input and CHAIN as an output.

• Clocked from a common clock source

• Controlled from a single master, presumed to be under software control of a host

system.

When only two AS0260 image sensors need to be synchronized, as is the case in a 3D

camera application, the AS0260 offers an additional feature of synchronized auto expo-

sure and auto white balance. In this mode, the slave device mimics the exposure and

white balance settings of the master device.

Figure 33:

Multi-Camera Connection

SADDR is normally used as a static input that selects between two slave device addresses

(See Figure 34. In order to implement the multi-sync function this input now has addi-

tional functionality that does not interfere with its use as device address selection.

Figure 34:

Normal Use of SADDR

Host

AS0260

SDATA

SADDR

SCLK

EXTCLK

CHAIN

GND

Logic1

CHAIN

AS0260 (1)

(Master)

device = ID0

AS0260 (2)

device = ID1

AS0260 (3)

device = ID1

AS0260 (4)

device = ID1

slave Device

SADDR

ID0 (Default: 0x90)

ID1 (Default: 0xBA)

R0x002E

(USER_DEFINED_DEVICE_ADDRESS_ID)

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