AD9992BBCZ datasheet(49/92 Pages) AD

Part #	AD9992BBCZ

Description	12-Bit CCD Signal Processor with Precision Timing Generator

PDF	92 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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49 / 92 page

AD9992

Rev. C | Page 49 of 92

SUBCK

SUBCK PROGRAMMABLE SETTINGS:

1. PULSE POLARITY USING THE SUBCK_POL REGISTER.

2. NUMBER OF PULSES WITHIN THE FIELD USING THE SUBCKNUM REGISTER (SUBCKNUM = 3 IN THE ABOVE EXAMPLE).

3. PIXEL LOCATION OF PULSE WITHIN THE LINE AND PULSE WIDTH PROGRAMMED USING THE SUBCK1 TOGGLE POSITION REGISTERS.

tEXP

VSG

tEXP

Figure 56. Normal SUBCK Operation

SUBCK

NOTES

1. SECOND SUBCK PULSE IS ADDED IN THE LAST SUBCK LINE.

2. LOCATION OF SECOND PULSE IS FULLY PROGRAMMABLE USING THE SUBCKHP TOGGLE POSITION REGISTERS.

VSG

tEXP

Figure 57. High Precision SUBCK Operation

SUBCK

VSG

TRIGGER

EXPOSURE

(0x70)

tEXP

NOTES

1. SUBCK CAN BE SUPPRESSED FOR MULTIPLE FIELDS BY PROGRAMMING THE EXPOSURE REGISTER TO BE GREATER THAN 0.

2. ABOVE EXAMPLE USES EXPOSURE = 1.

3. TRIGGER REGISTER MUST ALSO BE USED TO START THE LOW SPEED EXPOSURE.

4. VD/HD OUTPUTS CAN ALSO BE SUPPRESSED USING THE VDHDOFF REGISTER = 1.

Figure 58. Low Speed SUBCK Operation

AD9992BBCZ Datasheet(PDF) 49 Page - Analog Devices