PL502-35/-37/-38/-39

750kHz

– 800MHz Low Phase Noise Multiplier VCXO

Universal Low Phase Noise ICs

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/15/13 Page 2

FREQUENCY SELECTION TABLE

SEL3

SEL2

SEL1

SEL0

Selected Multiplier

0

0

1

1

Fin x 32

0

1

1

0

Fin / 8

0

1

1

1

Fin x 2

1

0

0

1

Fin / 2

1

0

1

0

Fin / 16

1

0

1

1

Fin x 4

1

1

0

0

Fin / 4

1

1

0

1

Fin x 8

1

1

1

0

Fin x 16

1

1

1

1

No multiplication

Note: SEL0 is not available (always “1”) for PL502-35 and PL502-38 in 3x3mm package

PIN DESCRIPTIONS PL502-35 and PL502-38 (see next page for PL502-37/-39)

Name

TSSOP

Pin number

3x3mm QFN

Pin number

Type

Description

XIN

2

12

I

Crystal input (See Crystal Specification on page 4)

XOUT

3

13

I

Crystal output (See Crystal Specification on page 4)

OE

6

16

I

Output enable pin (See OE logic state table on page 1)

VCON

7

1

I

Voltage Control input

GND

8,9,10,14

2,3,4,8,11

P

Ground connection

CLKT

11

5

O

LVPECL True output

CLKC

13

7

O

LVPECL Complementary output

SEL0

16

Not available

I

Multiplier selector pins. These pins have an internal pull-

up that will default SEL to ‘1’ when not connected to

GND.

SEL1

15

9

I

SEL2

5

15

I

SEL3

4

14

I

VDD

1, 12

6,10

P

+3.3V power supply.