The following specifications apply for AGND = DGND = DGND

f

Register Parameters for limits labelled C.R. Boldface limits apply for T

25˚C.

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 9)

(Note 10)

(Limits)

t

S/HREF

Falling Edge of

φ1 to Ref. Sample

Standard CCD Mode

C.R.

ns

Either Edge of

φ1 to Ref. Sample

Even/Odd CCD Mode

t

S/HSIG

Falling Edge of

φ1 to Sig. Sample

Standard CCD Mode

C.R.

ns

Either Edge of

φ1 to Sig. Sample

Even/Odd CCD Mode

t

S/HWIDTH

Sample Pulse Width

50ns

1

t

MCLK

(Acquisition Time)

t

SYNCLOW

SYNC Low Between Lines

100ns

2

t

t

B

SYNC Setup of

φ1 to End Line

2

t

t

CCLKWIDTH

CCLK Pulse Width

250ns

5

t

MCLK

t

DATAVALID

Data Valid Time from EOC Low

300

ns (min)

t

EOCWIDTH

EOC Pulse Width

250ns

5

t

MCLK

φ1 and φ2 Frequency

Standard CCD Mode

2.5MHz

f

Hz

Even/Odd CCD Mode

1.25MHz

f

Hz

φ1 and φ2 Duty Cycle

50

%

Electrical Characteristics (Notes)

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test condi-

tions.

The 50 mA maximum package input current rating limits the number of pins that can simultaneously safely exceed the power supplies with an input current of 25

mA to two.

mounted is 52˚C/W for the V52A PLCC package, and 70˚C/W for the VEG52A TQFP package.

Note 5: Human body model, 100pF capacitor discharged through a 1.5 k

Ω resistor.

Note 6: See AN450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in any National Semiconductor

Linear Data Book for other methods of soldering surface mount devices.

Note 7: A Zener diode clamps the OS analog input to AGND as shown below. This input protection, in combination with the external clamp capacitor and the output

impedance of the CCD, prevents damage to the LM9811 from transients during power-up.

Note 10: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

DS012813-4

www.national.com

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