SAA7197 datasheet(2/16 Pages) PHILIPS

Part #	SAA7197

Description	Clock Generator Circuit for desktop video systems CGC

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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August 1996

2

Philips Semiconductors

Product speciﬁcation

Clock Generator Circuit for desktop video systems (CGC)

SAA7197

FEATURES

• Suitable for Desktop Video systems

• Two different sync sources selectable

• PLL frequency multiplier to generate 4 times of input

frequency

• Dividers to generate clocks LLCA, LLCB, LLC2A and

LLC2B (2nd and 4th multiples of input frequency)

• PLL mode or VCO mode selectable

• Reset control and power fail detection

GENERAL DESCRIPTION

The SAA7197 generates all clock signals required for a

digital TV system suitable for the SAA719x family. The

circuit operates in either the phase-locked loop mode

(PLL) or voltage controlled oscillator mode (VCO).

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

MIN.

TYP.

MAX.

UNIT

VDDA

analog supply voltage (pin 5)

4.5

5.0

5.5

V

VDDD

digital supply voltage (pins 8, 17)

4.5

5.0

5.5

V

IDDA

analog supply current

3

−

9mA

IDDD

digital supply current

10

−

60

mA

VLFCO

LFCO input voltage (peak-to-peak value)

1

−

VDDA

V

fi

input frequency range

5.5

−

8.0

MHz

VI

input voltage LOW

0

−

0.8

V

input voltage HIGH

2.0

−

VDDD

V

VO

output voltage LOW

0

−

0.6

V

output voltage HIGH

2.6

−

VDDD

V

Tamb

operating ambient temperature range

0

−

70

°C

EXTENDED TYPE

NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

SAA7197P

20

DIP

plastic

SOT146-1

SAA7197T

20

SO

plastic

SOT163-1

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