ASX340AT Datasheet, PDF(11/75 Page) ON Semiconductor – Color CMOS NTSC/PAL Digital Image

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ASX340AT Datasheet, PDF (11/75 Pages) ON Semiconductor – Color CMOS NTSC/PAL Digital Image

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ASX340CS: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor

Pin Descriptions and Assignments

Table 4:

Pin Descriptions (continued)

Pin Number

A5, A7, D8,

E7, G1, G3

B2, B8, C8,

E3, E8, G8,

B4, H6

B5, C5, D1,

D5, H1

E5, F4

Pin Name

DAC_POS

DAC_NEG

DAC_REF

TDI

TDO

TMS

TCK

TRST_N

ATEST1

ATEST2

GPIO12

GPIO13

VREG_BASE

VDD

VDD_IO

VDD_DAC

VDD_PLL

VAA

VAA_PIX

Reserved

DGND

AGND

Type

Description

Output

Composite Video Output

Positive video DAC output in differential mode.

Video DAC output in single-ended mode. This interface is enabled by default using

NTSC/PAL signaling. For applications where composite video output is not

required, the video DAC can be placed in a power-down state under software

control.

Negative video DAC output in differential mode.

External reference resistor for the video DAC.

Input

Output

Input

Manufacturing Test Interface

JTAG Test pin (Reserved for Test Mode)

Connect to GND.

Analog test input. Connect to GND in normal operation.

GPIO

Input/Output Dedicated general-purpose input/output pin.

Supply

Power

Voltage regulator control. Leave floating if not used.

Supply for VDD core: 1.8V nominal. Can be connected to the output of the

transistor of the off-chip bypass transistor or an external 1.8V power supply.

Supply for digital IOs: 2.8V nominal.

Supply

Supply for video DAC: 2.8V nominal.

Supply for PLL: 2.8V nominal.

Analog power: 2.8V nominal.

Analog pixel array power: 2.8V nominal. Must be at same voltage potential as VAA.

Leave floating for normal operation.

Digital ground.

Analog ground.

ASX340AT/D Rev. H, 8/15 EN

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