90PF-L8L

90PF Slot Card Dual Channel Programmable Filter/Amplifier Card Introduction Description Each 90PF slot card provides two channels of precision, low noise and distortion (-100 dB typical) programmable filters with up to 60 dB of pre and 20 dB of post adjustable gain. Filter modules are programmable from 0.1 Hz to 300 kHz utilizing 4, 11-bit tuning ranges. When assembled with a high-pass filter in channel one (1) and a low-pass filter in channel two (2), 90PF slot cards can be configured on the fly to operate as a low-pass, high-pass, band-pass, or bandreject (notch) filter. Customers can select any combination of two available filter modules per slot card to meet their application specific signal conditioning needs. Front panel mounted BNC’s provide easy access for connection of signal input and output. Other features include differential or single-ended input, AC or DC-coupled input, single ended output, LED clipping indicators and fine adjustment of DC offset. Operating the 90PF in filter BYPASS mode allows the design engineer to use each channel as a precision instrumentation grade programmable amplifier. Features • 0.1 Hz to 300 kHz Tuning Range • Selectable single-ended or differential input • Gain/phase matched channels • LED clipping indicators • Memory storage for up to 9 set-ups/slot card • 100kHz L8EY -100 8, 6-zero L8D80 -80 8, 6-zero L8D10 -100 8, 6-zero Available 90PF High Pass Filters Part # dB # Poles H8B -100 8 H8E -88 8, 6-zero H8EX -80≤100kHz 8, 6-zero -60>100kHz H8EY -100 8, 6-zero Filter Type Butterworth Bessel Elliptic, 1.77 Elliptic, 1.56 Elliptic, 2.00 Constant Delay Constant Delay Filter Type Butterworth Elliptic, 1.77 Elliptic, 1.56 Elliptic, 2.00 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 90PF Slot Card Dual Channel Programmable Filter/Amplifier Card Introduction 6 10 S ignal Input 1 BN C 2 Cha n n e l On e 19 B Y PASS A C T I VE B DRE J E CT1 Pr e - G a i n F i l t e r M odu l e AC / D C 14 P o st - G ai n BNC S igna l O u tput 1 SN G/ D I F 6 10 20 S ignal Input 2 BN C 2 Cha nne l Tw o Pr e - G a i n AC / D C Fi l t e r M o dul e SN G/ D I F 14 Po st - G ai n BY PASS AC T I VE BD R E J E C T 2 C H 2 _ N O_ C ASC AD E BNC S igna l O u tput 2 CP L D DA C CP L D DA C CP L D DAC DA C CPL D SP I B U S EEPR OM f o r F IL T E R C O D E A T 25 256 P 8 9 C 660 25C 080 EEPR OM f o r P A R A M E T E R S 3 2 -PIN CON N E C T O R T O B A CK P L A N E Figure 1 – Signal Path 2 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 90PF Slot Card Low Pass Filter Options 90PF - L8L 8-Pole Bessel 0.1 Hz to 300 kHz Appendix A Page 4 0.0 dB 0 ± 0.2 dB Attenuation Rate 48 dB/octave fc ± 2% max. -3 dB -182° ±2º max. ±1º typ. fr 90PF - L8E 8-Pole, 6-Zero elliptic – 1.77 0.1 Hz to 300 kHz Appendix A Page 24 ±0.035 dB 0 ± 0.2 dB Attenuation 80 dB ± 2% max. 90PF - L8EX 8-Pole, 6-Zero elliptic – 1.56 0.1 Hz to 300 kHz Appendix A Page 23 ±0.05 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.4 dB >100 kHz Attenuation 80 dB 60dB Specifications Product Model Transfer Function 90PF - L8B 8-Pole Butterworth 0.1 Hz to 300 kHz Appendix A Page 9 0.0 dB 0 ± 0.2 dB Attenuation Rate 48 dB/octave fc ±2% max. -3 dB -360° ±2º max. ±1º typ. Tuning Range Theoretical Transfer Characteristics Passband Ripple (theoretical) Pass Band Gain (non-inverting) Stop Band Corner Frequency Accuracy Amplitude Phase Phase Match1 0 - fc 0 - fc -0.035 dB -323° 0 – 0.8fr ±2º max. ±1º typ. 0.8fr - fr ±4º max. ±2º typ. 0.035 dB 3.01 dB 60.0 dB 80.0 dB 1.00 fr 1.13 fr 1.67 fr 1.77 fr ± 2% max. ± 3% > 100 kHz -0.05 dB -414° 0 – 0.8fr ±3ºmax fr 0.8fr - fr ±4º>100kHz ±4º max. ±5º>100kHz Filter Attenuation (theoretical) 0.12 dB 3.01 dB 60.0 dB 80.0 dB 0.80 fc 1.00 fc 2.37 fc 3.16 fc 1.91 dB 3.01 dB 60.0 dB 80.0 dB 0.80 fc 1.00 fc 4.52 fc 6.07 fc 0.5 dB 3.01 dB 60.0 dB 80.0 dB 1.00 fr 1.05 fr 1.45 fr 1.56 fr Amplitude Accuracy1 0.1 to 100 kHz (theoretical) 0 - 0.8 fc ±0.2 dB max. ±0.1 dB typ. 0.8 fc - fc ±0.3 dB max. ±0.15 dB typ.