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MAX262ACNG

Microprocessor Programmable Universal Active Filters

Maxim Integrated 

Microprocessor Programmable

Universal Active Filters

PIN

MAX260

9

17

MAX261/

MAX262

9

16

NAME

V+

V-

18

17

GND

11

11

CLKA

12

12

CLKB

FUNCTION

Positive supply voltage

Negative supply voltage

Analog Ground. Connect

to the system ground for

dual supply operation or

mid-supply for single sup-

ply operation. GND should

be well bypassed in single

supply applications.

Input to the oscillator and

clock input to section A.

This clock is internally

divided by 2.

Clock input to filter B. This

clock is internally divided

by 2.

8

8

CLK OUT Clock output for crystal

and R-C oscillator operation

19

18

OSC OUT Connects to crystal or R-C

for self-clocked operation

Pin Description

PIN

MAX260 MAX261/ NAME

MAX262

FUNCTION

5, 23

1, 21

24, 22

3, 14

16

15, 13,

10, 7

20, 6

5, 23

1, 21

24, 22

3, 20

15

14, 13,

10, 7

19, 6

2

INA, INB

BPA, BPB

LPA, LPB

HPA, HPB

WR

A0, A1,

A2, A3

D0, D1

OP OUT

Filter inputs

Bandpass outputs

Lowpass outputs

Highpass/notch/allpass

outputs

Write enable input

Address inputs for f0 and

Q input data locations

Data inputs for f0 and Q

programming

Output of uncommitted

op amp on MAX261/

MAX262 only. Pin 2 is a no-

connect on the MAX260.

Inverting input of uncom-

mitted op amp on MAX261/

4

OP IN

MAX262 only (noninverting

input is internally connected

to ground). Pin 4 is a no-

connect on the MAX260.

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