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

0.1 Hz to 102.4 kHz

8-Bit Programmable

858 Series

2" x 4"

8-Pole Filters

Description

The 858 Series are digitally programmable low pass

and high-pass active filters that are tunable over a

256:1 frequency range.

858 filters are available

with any one of six standard factory-set tuning

ranges up to 102.4 kHz.

These units contain 8

CMOS logic inputs that can be operated in a

transparent or latching mode.

All 858 Series models are convenient, low profile,

easy to use fully finished filters which require no

external components or adjustments. They feature

low harmonic distortion, and near theoretical phase

and amplitude characteristics. 858 filters operate

from non-critical ± 12 to ± 18 Vdc power supplies,

have a 10 k

W (min.) input impedance, a 10 W (max.)

output impedance

and offer dc voltage offset

adjustment.

Features/Benefits:

•

Lower cost, high precision replacement for 848

and 878 series products.

• Low harmonic distortion and wide signal-to-noise

ratio to 16 bit resolution.

• Digitally programmable corner frequency allows

selecting cut-off frequencies specific to each

application.

• Plug-in

ready-to-use,

reducing

engineering

design and manufacturing cycle time.

• Factory-set tuning range, no external clocks or

adjustments needed.

• Broad range of transfer characteristics and corner

frequencies to meet a wide range of applications.

Applications

•

Anti-alias filtering

• Data acquisition systems

• Communication systems and electronics

• Medical electronics equipment and research

• Aerospace, navigation and sonar applications

• Sound and vibration testing

• Real and compressed time data analysis

• Noise elimination

• Signal reconstruction

Digital Tuning & Control. . . . . . . . . . . . . . . . . . . . . . 2

8-pole Butterworth . . . . . . . . . . . . . . . . . 3

8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . . 3

8-pole Bessel . . . . . . . . . . . . . . . . . . . . . 4

8-pole Butterworth . . . . . . . . . . . . . . . . . . 5

8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . . 5

General Specifications:

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . 6

Pin-out/package data . . . . . . . . . . . . . . . . . . . . . . . . 6