PGAB5 & PGAL5 Series
for FDI VME Boards
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
70
60
Fixed Frequency Filters
with Programmable Amplifiers
PGAB5-100 & PGAL5-100
Frequency Response
50
Gain (dB)
40
30
20
10
0
-10
-20
10
100
1000
10000
100000
Frequency (Hz)
Common Mode Rejection Ratio
0
-20
CMRR (dB)
-40
-60
-80
-100
-120
10
100
1000
10000
100000
Frequency (Hz)
Noise
-60
-70
RTI Noise density
(dBVrms/√Hz)
-80
-90
-100
-110
-120
-130
-140
-150
-160
-12
0
12
24
36
48
60
Gain (dB)
Measured at 51.2 kHz
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
FREQUENCYDEVICES [ FREQUENCY DEVICES, INC. ]
