Analog Frequency Multiplier

PL56X-XX VCXO Family

PACKAGE PIN DESCRIPTION AND ASSIGNMENT

2X AFM Package Pin Out

4X AFM Package Pin Out

PIN ASSIGNMENTS

Name

Pin# Type Product

Description

OSCOFFSEL

1

I

2X & 4X Set to “0” (GND) to choose to turn off the oscillator when outputs are

disabled (OE). Default (no connect) is OSC always on.

GNDOSC

2

P

2X & 4X GND connection for oscillator circuitry.

VCON

3

I

2X & 4X Control Voltage input. Use this pin to change the output frequency by

varying the applied Control Voltage.

XIN

4

I

2X & 4X Input from crystal oscillator circuitry.

XOUT

5

O

2X & 4X Output from crystal oscillator circuitry.

OE

6

I

2X & 4X Output Enable input (see "OE LOGIC SELECTION TABLE").

DNC

7

I

2X

Do Not Connect.

L4X

4X

External inductor connection. See INDUCTOR VALUE OPTIMIZATION on

page 5. This inductor is used with 4X AFMs.

GNDANA

8

P

2X

GND connection.

VDDOSC*

4X

GNDBUF

9

P

2X & 4X GND connection for output buffer circui try.

Q

10

O

2X & 4X PECL/LVDS or CMOS output.

QBAR

11

O

2X & 4X Complementary PECL/LVDS output or in phase CMOS.

VDDBUF*

12

P

VDDANA*

13

P

OESEL

14

I

2X & 4X Selector input to choose the OE control logic (see “OE SELECTION

TABLE”). Internal pull-down.

VDDOSC*

15

P

L2X

16

I

2X & 4X

External inductor connection. See INDUCTOR VALUE OPTIMIZATION on

page 5.

1

2

3

4

5

6

7

8

OSCOFFSEL

9

10

11

12

13

14

15

16

GNDOSC

VCON

XIN

XOUT

OE

L4X

VDDOSC

L2X

VDDOSC

OESEL

VDDANA

VDDBUF

QBAR

Q

GNDBUF

P560/5-0X

VDDOSC

OE

XOUT

L4X

1

2

3

4

12

11

10

9

13

14

15

16

8

7

6

5

OESEL

VDDANA

VDDOSC

L2X

1

2

3

4

5

6

7

8

OSCOFFSEL

9

10

11

12

13

14

15

16

GNDOSC

VCON

XIN

XOUT

OE

DNC

GNDANA

L2X

VDDOSC

OESEL

VDDANA

VDDBUF

QBAR

Q

GNDBUF

P560-4X

GNDANA

OE

XOUT

DNC

1

2

3

4

12

11

10

9

13

14

15

16

8

7

6

5

OESEL

VDDANA

VDDOSC

L2X