Details, datasheet, quote on part number: R854H8B
PartR854H8B
Category
Description2" x 4" Range Switch 4-pole Filters
CompanyFrequency Devices, Inc.
DatasheetDownload R854H8B datasheet
  

 

Features, Applications

Description The R854 Series are digitally programmable, 4-pole low-pass and high-pass active filters that contain a low and a high programmable frequency range, with each range tunable over a 256:1 ratio. R854 filters are available with any two of five standard factoryset tuning ranges or 8-bit custom ranges from to 102.4 kHz. These units contain 8 CMOS logic inputs that can be operated in a transparent or latching mode and 1 logic input for range selection. All R854 Series models are convenient, easy to use fully finished filters which require no external components or adjustments. They feature low harmonic distortion, and precision phase and amplitude characteristics. R854 filters operate from non-critical to 18 Vdc power supplies, have 10 k (min.) input impedance, a 10 (max.) output impedance. Features/Benefits: 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. Low profile design, ideal for rack mount installations. 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

Programmable Specifications. Page Digital Tuning & Control. 2 Available Low-Pass Models:. R854L4B 4-pole Butterworth. R854L4L 4-pole Bessel. R854L8Y2 4-pole Cheby (0.2 dB Ripple). R854L8Y5 4-pole Cheby (0.5 dB Ripple). 3 Available High-Pass Models:. R854H8B 4-pole Butterworth. R854H8Y2 4-pole Cheby (0.2 dB Ripple). R854H8Y5 4-pole Cheby (0.5 dB Ripple). 4 General Specifications: Ordering information. 5 Pin-out/package data. 5

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

The digital tuning interface circuits are two 4042 quad CMOS latches which accept the following CMOS-compatible inputs: eight tuning bits D7), a range selection bit (R), a latch strobe bit (C), and a transition polarity bit (P). Filter tuning follows the tuning equation given below: 2 ] where or "1", and fmax = Maximum tuning frequency; fc = corner frequency; = 0, Maximum low range = 1, Maximum Minimum tunable frequency fmax/256 (D0 thru = 0); Minimum frequency step (Resolution) = fmax/256

Pin-Out Key IN OUT GND "P" "C" +Vs -Vs Os R Analog Input Signal Analog Output Signal Power and Signal Return Transition Polarity Bit Tuning Strobe Bit Supply Voltage, Positive Supply Voltage, Negative Optional Offset Adjustment Range Switch Adjustment D7 Tuning D6 Tuning D5 Tuning D4 Tuning D3 Tuning D2 Tuning D1 Tuning D0 Tuning Bit 7 (MSB) (LSB)

Data Control Lines Functions Data Control Modes Mode 1 Mode 2 Input Data Levels Latch Strobe (C) Transition Polarity (P) = 0 frequency follows input codes = 0> frequency latched on rising edge = 1 frequency follows input codes = 1fl frequency latched on falling edge (CMOS Logic) 4 Vdc max. 15 Vdc max. -1 mA max. +1 mA max. 7.5 pF max. MSB D7 mA typ. +10 mA typ. 5 pF typ 80 nS min. Frequency Select Bits Logic "1" = +Vs Logic "0" = Gnd (Binary-Coded) LSB (least significant bit) MSB (most significant bit) : 1, Binary Weighted

Input Voltage (Vs = 15 Vdc) Low Level In 0 Vdc min. High Level In 11 Vdc min. Input Current High Level In Low Level In Input Capacitance Latch Response 1 Data Set Up Time 2 Data Hold Time Strobe Pulse Width Input Data Format Positive Logic Bit Weighting D0 D7 Frequency Range

Notes: 1.Frequency data must be present before occurrence of strobe edge. 2.Frequency data must be present after occurrence of strobe edge.

Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple

Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
Total Harmonic Distortion @ 1 kHz Wide Band Noise

 

Related products with the same datasheet
R854H8B-2
R854H8B-3
R854H8B-4
R854H8B-5
R854H8B-6
R854H8L-2
R854H8L-3
R854H8L-4
R854H8L-5
R854H8L-6
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