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

for FDI VME Boards

PGAB5 & PGAL5 Series

Fixed Frequency Filters

with Programmable Amplifiers

Description

The PGAB5 and PGAL5 Series of fixed frequency

filters with programmable gain amplifiers utilize

digitally controlled gain modules that were designed

for Frequency Devices’ multi-channel VME board

products

to

condition

DC-coupled

wide-band

signals.

Amplifiers are programmed by an 8-bit

serial data stream for gain selection using clock,

data and strobe inputs.

Other standard performance features include

differential input, single ended output, 5V interface

logic and low noise/distortion.

Available options

include AC coupled input (all models) and/or

differential output (VM32PAFF only).

Features/Benefits:

• Offers a low cost, versatile and convenient way to

provide up to 32 channels of precision filtering and

amplification in a single width B-size (6U) VME

form factor.

• Phase match down to 1.0º with gain accuracy of

0.1 dB provides precision performance solutions

to design engineers, system integrators and

OEM’s.

• Butterworth or Bessel transfer functions with a

broad range of corner frequencies are offered to

meet a wide range of applications.

Filter/Amplifier Options:

VM32PAFF-PGAB5-100

3-pole Butterworth, 100 Hz to 100 kHz

-12 dB to +60 dB gain in 6 dB steps

VM32PAFF-PGAB5-300

3-pole Butterworth, 100 Hz to 300 kHz

-12 dB to +42 dB gain in 6 dB steps

VM2.0PAFF-PGAB5-2.0

4-pole Butterworth, >100 kHz to 2.0 MHz

-12 dB to +36 dB gain in 6 dB steps

VM32PAFF-PGAL5-100

3-pole Bessel, 100 Hz to 100 kHz

-12 dB to +60 dB gain in 6 dB steps

VM32PAFF-PGAL5-300

3-pole Bessel, 100 Hz to 300 kHz

-12 dB to +42 dB gain in 6 dB steps

VM2.0PAFF-PGAL5-2.0

4-pole Bessel, >100 kHz to 2.0 MHz

-12 dB to +36 dB gain in 6 dB steps

PGAB5-100 & PGAL5-100

Frequency Response

Common Mode Rejection Ratio

Noise

-20

-10

0

10

20

30

40

50

60

70

10

100

1000

10000

100000

Frequency (Hz)

-120

-100

-80

-60

-40

-20

0

10

100

1000

10000

100000

Frequency (Hz)

-160

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-12

0

1224364860

Gain (dB)

Measured at 51.2 kHz