PLL502-26

High Pull-Range VCXO (27MHz) with integrated Audio PLL

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 1

XTAL

OSC

XIN

XOUT

OUT_27MHz

VCON

VARICAP

10X

PLL

REF_Audio

OUT_Audio

FEATURES

• Low phase noise 27MHz VCXO (-135 dBc at

10kHz offset).

• Integrated variable capacitors.

• Wide pull range (+/- 250 ppm).

• Low jitter (RMS): 10ps period.

• Integrated audio Phase Locked Loop.

• Audio clock output (ideal for 8.192MHz,

11.2896MHz, 12.288MHz).

• 27MHz crystal input.

• Audio Reference clock input.

• 3.3V operation.

• Available in 16-Pin SOIC.

DESCRIPTION

The PLL502-26 is a low cost, high pull-range and

low phase noise VCXO, providing less than -135dBc

at 10kHz offset at 27MHz. It also integrates an Audio

clock phase locked loop ideal for the 8.192MHz,

11.2896MHz and 12.288MHz audio outputs, starting

from an audio reference clock. Its very high pull

range makes it ideal for Digital Video applications,

allowing users to save board space and cost.

PIN CONFIGURATION

1

2

3

4

5

6

7

8

N/C*

9

1

0

1

1

1

2

1

3

1

4

1

5

1

6

VDD_PLL

VDD_VCXO

XIN

XOUT

VCON

GND_PLL

N/C*

GND_27MHz

OUT_27MHz

VDD_27MHz

VDD_Audio

OUT_Audio

GND_Audio

REF_Audio

GND_VCXO

Note: * Pins reserved for future DAC integration

OUTPUT RANGE

OUTPUT

FREQUENCY RANGE

OUTPUT

TYPE

VCXO

27MHz

CMOS

Audio

8.192MHz – 12.288MHz

CMOS

BLOCK DIAGRAM