ASX340 datasheet(75/78 Pages) ETC2

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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

Notes:

1. This table is based on I2C standard (v2.1 January 2000). Philips Semiconductor.

2. Two-wire control is I2C-compatible.

3. All values referred to VIHmin = 0.9 VDD and VILmax = 0.1VDD levels. Sensor EXCLK = 27 MHz.

4. A device must internally provide a hold time of at least 300 ns for the SDATA signal to bridge the unde-

fined region of the falling edge of SCLK.

5. The maximum tHD;DAT has only to be met if the device does not stretch the LOW period (tLOW) of the

SCLK signal.

6. A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement

tSU;DAT 250 ns must then be met. This will automatically be the case if the device does not stretch the

LOW period of the SCLK signal. If such a device does stretch the LOW period of the SCLK signal, it must out-

put the next data bit to the SDATA line tr max + tSU;DAT = 1000 + 250 = 1250 ns (according to the Stan-

dard-mode I2C-bus specification) before the SCLK line is released.

7. Cb = total capacitance of one bus line in pF.

Bus free time between a STOP and START

condition

tBUF

4.7

1.3

μS

Capacitive load for each bus line

400

Serial interface input pin capacitance

CIN_SI

3.3

SDATA max load capacitance

CLOAD_SD

SDATA pull-up resistor

RSD

1.5

4.7

1.5

4.7

KΩ

Table 51:

Two-Wire Serial Bus Characteristics

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; TA = 25°C

Parameter

Symbol

Standard-Mode

Fast-Mode

Unit

Min

Max

Min

Max

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