Specification

(25°C and Vs ± 15 Vdc)

428 Series

Pin-Out and Package Data

Ordering Information

1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176

e-mail: sales@freqdev.com

Web Address: http://www.freqdev.com

We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements,

recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements,

recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.

IN-00428-02

20 k W

(Cermet)

OS

+Vs

-Vs

Do not connect

if trim is not

required.

Impedance

Voltage Range

Max. Safe Voltage

Analog Output Characteristics

Impedance (Closed Loop)

Linear Operating Range

Maximum Current

2

Offset Voltage

3

20 mV max.

Offset Temp. Coeff.

50 mV/°C

Power Supply (

Rated Voltage

Operating Range

Maximum Safe Voltage

Quiescent Current

T

emperature

Operating

Storage

-25 to +85°C

Notes:

1. Input and output signal voltage referenced to supply common.

2. Output is short circuit protected to common.

DO NOT CONNECT TO ±Vs.

3. Adjustable to zero.

4. Units operate with or without offset pin connected.

DC Offset Adjustment

428L4B-7

Binary Tuning Ranges

Model

Tuning

*Minimum

Number Range (Hz) Step (Hz)

1

10-160

10

2

25-400

25

3

50-800

50

4

100-1.60k

100

5

250-4.00k

250

6

500-8.00k

500

7

1.00k-16.0k

1.00k

8

2.50k-40.0k

2.50k

9

5.00k-80.0k

5.00k

10

6.40k-102.4k

6.40k

*Contact factory for custom step frequency. Maximum step 6.40 kHz.

Discrete Frequency’s

Contact factory for custom frequency’s

Model Number

428 Transfer Function

B - Butterworth

L - Bessel

D60 - constant delay (-60 dB)

D80 - constant delay (-80 dB)

D10 - constant delay (-100 dB)

E - elliptic 1.77 (-80 dB)

EX- elliptic 1.56 (-80dB)

EY - elliptic 2.00 (-100 dB)

Filter Type

L - Low Pass

H - High Pass

Ordering Information

Side

Front

Bottom View

0.025" (dia)

1.80"(max)

0.80"(max)

0.15" (min)

0.80"

0.70"

0.10"

0.00"

-Vs

IN

All dimensions are in inches

All case dimensions ± 0.01"

428 Package OUTLINE

0.10"(typ)

D0

D1

D3

Os

OUT

D2

+5V

0.50"(max)

GND

+Vs

Filter Mounting Assembly - See FMA-02A