LM9801 datasheet(6/34 Pages) NSC

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AC Electrical Characteristics MCLK Independent (Continued)

The following specifications apply for AGND e DGND e DGND(IO) e 0V VA e VD e VD(IO) ea50VDC REF IN e

1225VDC fMCLK e 20 MHz tMCLK e 1fMCLK tr e tf e 5 ns Rs e 25X CL (databus loading) e 50 pFpin Boldface

limits apply for TA e TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 7 and 8)

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 9)

(Note 10)

(Limits)

tS1H tS0H

Delay from CS Rising Edge to SDO

RL e 3k CL e 50 pF

ns (max)

TRI-STATE

tRDO

SDO Rise Time TRI-STATE to High

RL e 3k CL e 50 pF

SDO Rise Time Low to High

tFDO

SDO Fall Time TRI-STATE to Low

RL e 3k CL e 50 pF

SDO Fall Time High to Low

AC Electrical Characteristics MCLK Dependent

The following specifications apply for AGND e DGND e DGND(IO) e 0V VA e VD e VD(IO) ea50VDC REF IN e

1225VDC fMCLK e 20 MHz tMCLK e 1fMCLK tr e tf e 5 ns Rs e 25X CL (databus loading) e 50 pFpin Refer to Table

2 Configuration Register Parameters for limits labelled CR Boldface limits apply for TA e TJ e TMIN to

TMAX all other limits TA e TJ e 25 C (Notes 7 and 8)

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 9)

(Note 10)

(Limits)

tSTART

MCLK to first w1 High

50 ns

tMCLK

1 w2 Clock Period

Standard CCD Mode

400 ns

tMCLK

EvenOdd CCD Mode

800 ns

tMCLK

tTRWIDTH

Transfer Pulse (TR) Width

tGUARD

1 to TR TR to w1 Guardband

tRSWIDTH

Reset Pulse (RS) Width

tRS

Falling Edge of w1 to RS

Standard CCD Mode

Either Edge of w1 to RS

EvenOdd CCD Mode

tSHREF

Falling Edge of w1 to Ref Sample

Standard CCD Mode

Either Edge of w1 to Ref Sample

EvenOdd CCD Mode

tSHSIG

Falling Edge of w1 to Sig Sample

Standard CCD Mode

Either Edge of w1 to Sig Sample

EvenOdd CCD Mode

tSHWIDTH

Sample Pulse Width

50 ns

tMCLK

(Acquisition Time)

tSYNCLOW

SYNC Low Between Lines

100 ns

tMCLK (min)

SYNC Setup of w1 to End Line

tMCLK (max)

tCCLKWIDTH

CCLK Pulse Width

250 ns

tMCLK

tDATAVALID

Data Valid Time from EOC Low

300

ns (min)

tEOCWIDTH

EOC Pulse Width

250 ns

tMCLK

1 and w2 Frequency

Standard CCD Mode

25 MHz

fMCLK 8

EvenOdd CCD Mode

125 MHz

fMCLK 16

1 and w2 Duty Cycle

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