ASX340 datasheet(70/78 Pages) ETC2

70 / 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

Electrical Specifications

Aptina Confidential and Proprietary

Preliminary

NTSC Signal Parameters

Notes:

1. Black and white levels are referenced to the blanking level.

2. NTSC convention standardized by the IRE (1 IRE = 7.14mV).

3. Encoder contrast setting R0x011 = R0x001 = 0.

4. DAC ref = 2.8kΩ, load = 37.5Ω.

Table 47:

NTSC Signal Parameters

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

Conditions

Min

Typ

Max

Units

Notes

Line Frequency

15734.25

15734.27

15734.28

Field Frequency

59.94

Sync Rise Time

148

Sync Fall Time

148

Sync Width

4.744.744.74

μs

Sync Level

39.9

IRE

2, 4

Burst Level

39.7

IRE

2, 4

Sync to Setup

(with pedestal off)

9.44

μs

Sync to Burst Start

5.33

μs

Front Porch

1.331.331.33

μs

Black Level

6.5

7.5

8.5

IRE

1, 2, 4

White Level

100

110

IRE

1, 2, 3, 4

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