ASX340AT datasheet(63/75 Pages) ONSEMI

63 / 75 page

ASX340AT/D Rev. H, 8/15 EN

©Semiconductor Components Industries, LLC, 2015.

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

Electrical Specifications

Notes:

1. VAA and VAA_PIX must all be at the same potential to avoid excessive current draw. Care must be

taken to avoid excessive noise injection in the analog supplies if all three supplies are tied together.

2. The imager operates in this temperature range, but image quality may degrade if it operates

beyond the functional operating temperature range.

3. Image quality is not guaranteed at temperatures equal to or greater than this range.

Note:

DAC_POS, DAC_NEG, and DAC_REF are loaded with resistors to simulate video output driving into

a low pass filter and achieve a full output swing of 1.4V. Their resistor loadings may be different

from the loadings in a real single-ended or differential-ended video output system with an actual

receiving end. Please refer to the Developer Guide for proper resistor loadings.

Table 38:

Electrical Characteristics and Operating Conditions

Parameter1

Condition

Min

Typ

Max

Unit

Core digital voltage (VDD)

–

1.70

1.8

1.95

IO digital voltage (VDD_IO)

–

2.66

2.8

2.94

Video DAC voltage (VDD_DAC)

–

2.66

2.8

2.94

PLL Voltage (VDD_PLL)

–

2.66

2.8

2.94

Analog voltage (VAA)

–

2.66

2.8

2.94

Pixel supply voltage (VAA_PIX)

–

2.66

2.8

2.94

Imager operating temperature2

–

–40

+105

°C

Functional operating temperature3

–40

+85

°C

Storage temperature

–

–50

+150

°C

Table 39:

Video DAC Electrical Characteristics–Single-Ended Mode

fEXTCLK = 27 MHz; VDD = 1.8V; VDD_IO = 2.8V; VAA = 2.8V; VAA_PIX = 2.8V;

VDD_PLL = 2.8V; VDD_DAC = 2.8V

Parameter

Condition

Min

Typ

Max

Unit

Resolution

–

bits

DNL

–

0.2

0.4

bits

INL

–

0.7

3.5

bits

Output local load

Output pad (DAC_POS)

–

37.5



Unused output (DAC_NEG)

–

37.5



Output voltage

Single-ended mode, code 000h

–

.021

Single-ended mode, code 3FFh

–

1.392

Output current

Single-ended mode, code 000h

–

0.560

Single-ended mode, code 3FFh

–

37.120

Supply current

Estimate

–

25.0

DAC_REF

DAC Reference

–

1.200

R DAC_REF

DAC Reference

–

2.4

K

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