XR-2212

Precision

Phase-Locked Loop

Rev. 2.01

E1979

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538

z (510) 668-7000 z FAX (510) 668-7017

1

June 1997-3

FEATURES

D Quadrature VCO Outputs

D Wide Frequency Range (0.01Hz to 300kHz)

D Wide Supply Voltage Range (4.5V to 20V)

D Wide Dynamic Range (2mV to 3Vrms)

D Adjustable Tracking Range ("1% to "80%)

D Excellent Temp. Stability 20ppm/°C, Typ.

APPLICATIONS

D Frequency Synthesis

D Data Synchronization

D FM Detection

D Tracking Filters

D FSK Demodulation

GENERAL DESCRIPTION

The XR-2212 is an ultra-stable monolithic phase-locked

loop

(PLL)

system

especially

designed

for

data

communications and control system applications. Its on

board reference and uncommitted operational amplifier,

together with a typical temperature stability of better than

20ppm/

°C, make it ideally suited for frequency synthesis,

FM detection, and tracking filter applications. The wide

input dynamic range, large operating voltage range, large

frequency range, and HCMOS and TTL compatibility

contribute to the usefulness and wide applicability of this

device.

ORDERING INFORMATION

Part No.

Package

Operating

Temperature Range

XR-2212M

16 Lead 300 Mil CDIP

-55

°C to +125°C

XR-2212CP

16 Lead 300 Mil PDIP

0

°C to +70°C

XR-2212P

16 Lead 300 Mil PDIP

-40

°C to +85°C

BLOCK DIAGRAM

2

INP

1

4

GND

10

0-DET O

8

OUT

6

COMP

11

5

VCOOV

3

VCOOC

15

VCOQO

12

TIM R

14

TIM C1

13

TIM C2

16

0-DET I

9

PINP

7

NINP

Figure 1. XR-2212 Block Diagram

Pre Amplifier

Phase

Detector

Op Amp

Amp

VCO