20

LTC1067/LTC1067-50

©LINEAR TECHNOLOGY CORPORATION 1997

PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.

10675fs, sn1067 LT/TP 0698 4K • PRINTED IN USA

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com

PART NUMBER

DESCRIPTION

COMMENTS

LTC1068-25

High Speed Quad Universal Building Block Filter

25:1 Clock-to-fO Ratio

LTC1068-50

Low Power Quad Universal Building Block Filter

50:1 Clock-to-fO Ratio

LTC1068-200

Low Noise, Oversampled Quad Universal Building Block Filter

200:1 Clock-to-fO Ratio

LTC1068

Quad Universal Building Block Filter

100:1 Clock-to-fO Ratio

LTC1562

Quad, Universal, Continuous Time Building Block

10kHz < fC < 150kHz

RELATED PARTS

TYPICAL APPLICATION

1.02kHz Notch Filter for Telecom System

0.1

µF

1067 TA03

LTC1067

5V

R52, 4.99k*

R32, 464k

R22, 75k

R31, 61.9k

R51, 4.99k*

R61, 9.88k*

R21, 10k

R11, 18.7k

VIN***

1

µF

fCLK = 125kHz

1

2

3

4

5

6

7

8

16

15

14

13

12

200

Ω

R62, 10k*

RH1, 40.2k

C21, 300pF**

C22, 30pF**

VOUT

R51, R61, R52, R62 ARE 0.1% TOLERANCE RESISTORS

C21 AND C22 IMPROVE THE NOTCH DEPTH WHERE

*

**

***

1

2

π(R2x)(C2X)

(30)(fNOTCH) <

< (75)(fNOTCH)

WITHOUT C21 AND C22 THE NOTCH DEPTH IS LIMITED TO –35dB

VIN ≤ 1.25VP-P

V+

NC

V+

SA

LPA

BPA

HPA/NA

INV A

CLK

AGND

V–

SB

LPB

11

10

9

HPB/NB

INV B

BPB

Frequency Response

FREQUENCY (kHz)

800

900

1000

1100

1067 TA04

1200

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

S16 0695

1

2

3

4

5

6

7

8

0.150 – 0.157**

(3.810 – 3.988)

16

15

14

13

0.386 – 0.394*

(9.804 – 10.008)

0.228 – 0.244

(5.791 – 6.197)

12

11

10

9

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

TYP

0.016 – 0.050

0.406 – 1.270

0.010 – 0.020

(0.254 – 0.508)

× 45°

0

° – 8° TYP

0.008 – 0.010

(0.203 – 0.254)

DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

*

**

S Package

16-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)