16

LTC1066-1

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7487

© LINEAR TECHNOLOGY CORPORATION 1994

LT/GP 0594 10K • PRINTED IN USA

100kHz Elliptic Lowpass Filter with Input Anti-Aliasing and Output Clock Feedthrough Filters

(Not DC Accurate)

SEE NOTE

0.447 – 0.463

(11.354 – 11.760)

(NOTE 2)

15

14

13

12

11

10

16

9

1

23

4

5

6

78

0.394 – 0.419

(10.007 – 10.643)

17

18

0.037 – 0.045

(0.940 – 1.143)

0.004 – 0.012

(0.102 – 0.305)

0.093 – 0.104

(2.362 – 2.642)

0.050

(1.270)

TYP

0.014 – 0.019

(0.356 – 0.482)

TYP

0° – 8° TYP

NOTE 1

0.009 – 0.013

(0.229 – 0.330)

0.016 – 0.050

(0.406 – 1.270)

0.291 – 0.299

(7.391 – 7.595)

(NOTE 2)

× 45°

0.010 – 0.029

(0.254 – 0.737)

0.005

(0.127)

RAD MIN

NOTE:

1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.

THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS.

2. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).

S Package

18-Lead Plastic SOL

FREQUENCY (Hz)

10k

100k

1M

10M

1066-1 TA07b

10

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

Gain vs Frequency

1066-1 TA07a

8V

–8V

OUTPUT CLOCK

FEEDTHROUGH

FILTER

8V

2ND ORDER BUTTERWORTH INPUT

ANTI-ALIASING FILTER PROVIDES

–8V

C1

51pF

C2

510pF

20pF

1

2

3

4

5

6

7

8

9

18

17

16

15

14

13

12

11

10

OUT A

–IN A

+IN A

CONNECT 1

50/100

CLK

OUT B

+IN B

GND

COMP 2

CONNECT 2

COMP 1

0.1

µF

0.1

µF

0.1

µF

LTC1066-1

100

Ω

30k

2.49k

2.49k

10k

0.1

µF

1000pF

C1 =

C2 =

50

C2

10

100