D64 & DP64 Series
32-Pin DIP
4 - Pole Filters
1.0 Hz to 100 kHZ
Fixed Frequency
Description
The D64 and DP64 Series of small 4-pole fixed-
frequency, precision active filters provide high
performance linear active filtering in a compact 32-
pin DIP package, with a broad range of corner
frequencies and a choice of transfer functions.
Individual D64 filters can serve in low-pass or high-
pass applications (DP64, low-pass only) or be
combined to create custom band-pass or band-
reject filters. These fully self-contained units
require no external components or adjustments.
Each model comes factory tuned to a user-specified
corner frequency between 1 Hz and 100 kHz (DP64,
1 Hz to 5 kHz) and operate with low total harmonic
distortion over a wide dynamic input voltage range
from non-critical +/-5V to +/-18V power supplies.
Features/Benefits:
• Low harmonic distortion and wide signal-to-noise
ratio
• Compact 1.8"L x 0.8"W x 0.3"H minimizes board
space requirements.
• Plug-in ready-to-use, reducing engineering design
and manufacturing cycle time.
• Factory tuned, no external clocks or adjustments
needed
• Broad range of transfer characteristics and corner
frequencies to meet a wide range of applications.
Available Low-Pass Models: . . . . . . . . . . .Page
D64L4B & DP64L4B 4-pole Butterworth . . . . . .2
Applications
D64L4L & DP64L4L
D64L4Y2 & DP64L4Y2 4-pole Cheby
(0.2 dB Ripple) . . . . . . . . .2
D64L4Y5 & DP64L4Y5 4-pole Cheby
(0.5 dB Ripple) . . . . . . . . .2
4-pole Bessel . . . . . . . . . .2
• Anti-alias filtering
• Data acquisition systems
• Communication systems and electronics
• Medical electronics equipment and research
• Aerospace, navigation and sonar applications
• Sound and vibration testing
Available High-Pass Models:
D64H4B 4-pole Butterworth . . . . . . . . . . . . . . . .3
D64H4Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . .3
D64H4Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . .3
• Acoustic and vibration analysis and control
General Specifications:
Pin-out/package data & ordering information . . . .4
• Noise elimination
• Signal reconstruction
25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com