1999 Sep 21

21

Philips Semiconductors

Product specification

18 Msps, 10-bit analog-to-digital

interface for CCD cameras

TDA8784

APPLICATION INFORMATION

handbook, full pagewidth

MGM516

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48

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TDA8784

OGND

D9

D8

D7

D5

D4

D3

D2

D1

D0

DGND1

CLPOB

AGND4

OFDOUT

AMPOUT

AGND1

VCCA1

CPCDS

AGND5

CLPADC

Vref

D6

AGCOUT

ADCIN

from timing

generator

serial

interface

5.0 V

5.0 V

5.0 V

5.0 V

CCD

2.5 to 5.25 V

(3)

1

µF

1

µF

(3)

(3)

(2)

(1)

(3)

5.0 V

(3)

100

nF

1

nF

2.2

nF

1

nF

(3)

1

µF

Fig.16 Application diagram.

Depending on the application, the following connections must be made:

(1) The clamp level of the signal input at ADCIN can be tuned from code 00 to code 511 in 0.5 LSB steps of ADC via the serial interface

(clamp ADC activated).

(3) All supply pins must be decoupled with 100 nF capacitors as close as possible to the device.