MK1410/MK1411

NTSC/PAL Clock Source

MDS 1410/11 E

2

Revision 102298

Printed 11/15/00

Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com

MK1410 MK1411

Name

Type Description

1

1

X1/ICLK

I

Crystal Connection. Connect to a 14.31818 MHz crystal or clock.

2

2

VDD

P

Connect to +3.3V or +5V.

3

3

GND

P

Connect to ground.

4

-

14.3M

O

14.31818 MHz buffered crystal clock output.

5

4

NPCLK

O

NTSC or PAL output clock. Selected by SEL pin per tables above.

-

5

S1

I

Select pin. Selects NTSC or PAL frequency per tables above.

6

-

SEL

I

Select pin. Selects NTSC or PAL frequency per tables above.

-

6

S0

I

Select pin. Selects NTSC or PAL frequency per tables above. Internal pull-up.

7

7

PD

I

Power Down. Active low. Clocks stop low.

8

8

X2

O

Crystal Connection to a 14.31818 MHz crystal, or leave unconnected for clock input.

Pin Descriptions

Key: I = Input, O = output, P = power supply connection

Pin Assignment

External Components/Crystal Selection

A minimum number of external components are required for proper oscillation. For a crystal input, a

parallel resonant 14.31818 MHz, 18pF load, crystal is recommended. Do not use a crystal with lower load

capacitance. It is possible to use a crystal with higher load capacitance. In this case, external capacitors must

crystal load capacitance in pF. So for a 20 pF crystal, use 4 pF caps. The frequency tolerance of the crystal

should be 30ppm or better. For a clock input, connect to X1 and leave X2 unconnected. A decoupling

capacitor of 0.1µF should be connected between VDD and GND on pins 2 and 3, and a 33

Ω terminating

resistor should be used on the clock output if the trace is longer than 1 inch.

1

8

2

3

4

7

6

5

X1/ICLK

PD

GND

X2

VDD

SEL

NPCLK

MK1410

14.3M

S1

S0

NPCLK

ppm error

pin 5

pin 6

pin 4 (MHz)

0

0

35.46896

5 ppm

0

1

17.73448

5 ppm

1

0

28.63636

0 ppm

1

1

14.31818

0 ppm

NTSC/PAL Clock - MK1411

SEL

NPCLK

ppm error

pin 6

pin 5 (MHz)

0

17.73448

5 ppm

1

14.31818

0 ppm

NTSC/PAL Clock - MK1410

1

8

2

3

4

7

6

5

X1/ICLK

PD

GND

X2

VDD

S0

NPCLK

MK1411

S1