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Details, datasheet, quote on part number:828Series
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| Part: | 828Series |
| Category: | Analog & Mixed-Signal Processing => Filters => Low Pass Filters |
| Description: | 1.0 HZ to 102.4 KHZ 8-bit Programmable |
| Company: | Frequency Devices, Inc. |
| Datasheet: | Download 828Series datasheet File size : 620 kB |
| Request For quote: | Find where to buy 828Series
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Datasheet text preview:
828 Series
1.0 Hz to 102.4 kHz 8-Bit Programmable
Description The 828 Series are digitally programmable low-pass and high-pass active filters that are tunable over a 256:1 frequency range. 828 filters are available with any one of five standard factory-set tuning ranges or 8-bit custom ranges from 1.0 Hz to 102.4 kHz. These units contain 8 CMOS logic inputs. All 828 Series models are convenient, low profile, easy to use fully finished filters which require no external components or adjustments. They feature low harmonic distortion, and near theoretical phase and amplitude characteristics. 828 filters operate from non-critical ± 12 to ± 18 Vdc power supplies, have a 10 k (min.) input and a 10 (max.) output impedance.
2" x 2" 8-Pole Filters
Features/Benefits: · Compact 2" x 2" design minimizes board space requirements. · Low harmonic distortion and wide signal-to-noise ratio to 16 bit resolution. · 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. 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: . . . . . . . . . . . . . . . . . . 828L8B 8-pole Butterworth . . . . . . . . . . . . . . . . . 3 828L8E 8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . 3 828L8EX 8-pole, 6 zero elliptic, 1.56 (-80dB) . . . . 3 828L8EY 8-pole, 6 zero elliptic, 2.00 (-100dB) . . . 3 828L8L 8-pole Bessel. . . . . . . . . . . . . . . . . . . . . 4 828L8D60 8-pole constant delay (-60dB) . . . . . . . . 4 828L8D80 8-pole constant delay (-80dB) . . . . . . . . 4 828L8D10 8-pole constant delay (-100dB) . . . . . . . . 4 Available High-Pass Models: . . . . . . . . . . . . . . . . . . 828H8B 8-pole Butterworth . . . . . . . . . . . . . . . . . 5 828H8E 8-pole, 6 zero elliptic, 1.77 (-80dB) . . . . . 5 828H8EX 8-pole, 6 zero elliptic, 1.56 (-80dB) . . . . . 5 828H8EY 8-pole, 6 zero elliptic, 2.00 (-100dB) . . . . 5 General Specifications: Ordering information . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin-out/package data . . . . . . . . . . . . . . . . . . . . . . . . 6
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
828 Series
8-Bit Programmable Filters
Digital Tuning Characteristics
The digital tuning interface circuits are a parallel set of eight (8) 4053 CMOS switches which accept CMOS compatible inputs for the eight tuning bits (D0 - D7). Filter tuning follows the tuning equation given below: fc = ( fmax/256 ) [ 1 + D7 x 2 + D6 x 2 + D5 x 2 + D4 x 2 + D3 x 2 + D2 x 2 + D1 x 2 + D0 x 2 ] where D1 - D7 = "0" or "1", and fmax = Maximum tuning frequency; fc = corner frequency; Minimum tunable frequency = fmax/256 (D0 thru D7 = 0); Minimum frequency step (Resolution) = fmax/256
2.00 OUT +Vs -Vs D7 D6 D5 D4 GND D3 D2 D1 D0 IN Os
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3 2 1 0 7 6 5 4
Digital Tuning & Control Characteristics
Pin-Out Key
IN OUT GND +Vs -Vs Os Analog Input Signal Analog Output Signal Power and Signal Return Supply Voltage, Positive Supply Voltage, Negative Offset Adjustment D7 Tuning D6 Tuning D5 Tuning D4 Tuning D3 Tuning D2 Tuning D1 Tuning D0 Tuning Bit Bit Bit Bit Bit Bit Bit Bit 7 (MSB) 6 5 4 3 2 1 0 (LSB)
Data Input Specifications
Input Data Levels (CMOS Logic) 4 Vdc max. 15 Vdc max. -1 µA max.. +1 µA max. 7.5 pF max.
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 Input Data Format Positive Logic Bit Weighting D0 D7 Frequency Range - 10 µA typ. -5 +10 µA typ. 5 pF typ
-5
Bottom View
MSB 2
7
--2
6
--2
5
--2
4
--2
3
--2
2
--2
1
LSB 2
0
Bit Weight
Corner Frequency
Frequency Select Bits Logic "1" = +Vs Logic "0" = Gnd (Binary-Coded) LSB (least significant bit) MSB (most significant bit) 256 : 1, Binary Weighted
fc
D7 0 0 0 0 0 0 0 0 1
D6 0 0 0 0 0 0 0 1 1
D5 0 0 0 0 0 0 1 1 1
D4 0 0 0 0 0 1 1 1 1
D3 0 0 0 0 1 1 1 1 1
D2 0 0 0 1 1 1 1 1 1
D1 0 0 1 1 1 1 1 1 1
D0 0 1 1 1 1 1 1 1 1
fmax/256 fmax/128 fmax/64 fmax/32 fmax/16 fmax/8 fmax/4 fmax/2 fmax
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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
828 Series
8-Bit Programmable
Model Product Specifications Transfer Function Size Range fc, fr Theoretical Transfer Characteristics Passband Ripple
(theoretical)
8-Pole Low-Pass Filters
828L8E 828L8EX 828L8EY
828L8B
8-Pole Butterworth 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 9 0.0 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 48 dB/octave fc ± 0.01% /°c -3 dB -360° 0.12 dB 3.01 dB 60.0 dB 80.0 dB 0 - 0.8 fc ± 2% max.
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 24 ± 0.035 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 80 dB min. fr ± 0.01% /°c -0.035 dB -323.5° 0.035 dB 3.01 dB 60.0 dB 80.0 dB 0 - 0.8 fr ± 2% max.
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 23 - 0.05 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 80 dB min. fr ± 0.01% /°c -0.05dB -414° 0.05 dB 3.01 dB 60.0 dB 80.0 dB 0 - 0.8 fr ± 2% max.
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 25 - 0.05 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 100 dB min. fr ± 0.01% /°c -0.05 dB -419° 0.05 dB 3.01 dB 80.0 dB 100.0 dB 0 - 0.8 fr ± 2% max.
DC Voltage Gain
(non-inverting)
Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
(theoretical)
0.80 fc 1.00 fc 2.37 fc 3.16 fc
1.00 fr 1.13 fr 1.67 fr 1.77 fr
1.00 fr 1.05 fr 1.45 fr 1.56 fr
1.00 fr 1.06 fr 1.83 fr 2.00 fr
Phase Match1
± 2° max. ± 1° typ. 0.8 fc - 1.0 fc ± 3° max. ± 1.5° typ. 0 - 0.8 fc ± 0.2 dB max. ± 0.1 dB typ. 0.8 fc - 1.0 fc ± 0.3 dB max. ± 0.15 dB typ.
± 2° max. ± 1° typ. 0.8 fr - 1.0 fr ± 4° max. ± 2° typ. 0 - 0.8 fr ± .2 dB max. ± .1 dB typ. 0.8 fr - 1.0 fr ± .3 dB max. ± .15 dB typ. < - 88 dB typ. 200 µVrms typ. 50 µVrms typ.
± 3° max. ± 1.5° typ. 0.8 fr - 1.0 fr ± 4° max. ± 2° typ. 0 - 0.8 fr ± 0.2 dB max. ± 0.1 dB typ. 0.8 fr - 1.0 fr ± 0.5 dB max. ± 0.25 dB typ. < - 88 dB typ. 250 µVrms typ. 75 µVrms typ.
± 3° max. ± 1.5° typ. 0.8 fr - 1.0 fr ± 4° max. ± 2° typ. 0 - 0.8 fr ± 0.2 dB max. ± 0.1 dB typ. 0.8 fr - 1.0 fr ± 0.5 dB max. ± 0.25 dB typ. < - 88 dB typ. 250 µVrms typ. 75 µVrms typ.
Amplitude Accuracy
(theoretical)
Total Harmonic Distortion @ 1kHz Wide Band Noise
(5 Hz - 2 MHz)
< - 100 dB typ. 200 µVrms typ. 50 µVrms typ.
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting Assembly
FMA-02A
FMA-02A
FMA-02A
FMA-02A
1.Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
3
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
828 Series
8-Bit Programmable
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
8-Pole Low-Pass Filters
828L8D60 828L8D80 828L8D10
828L8L
8-Pole Bessel 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 4 0.0 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 48 dB/octave fc ± 0.01% /°c -3 dB -182° 1.91 dB 3.01 dB 60.0 dB 80.0 dB 0 - fc 0 - fc ± 2% max.
8-Pole, 6 zero Constant Delay 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 20 0.15 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 60 dB min. fc ± 0.01% /°c -3 dB -306° 3.01 dB 40.0 dB 60.0 dB 0 - fc 0 - 0.8 fc ± 2% max.
8-Pole, 6 zero Constant Delay 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 21 0.15 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 80 dB min. fc ± 0.01% /°c -3 dB -306° 3.01 dB 60.0 dB 80.0 dB 0 - fc 0 - 0.8 fc ± 2% max.
8-Pole, 6 zero Constant Delay 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 22 0.15 dB 0 ± 0.1 dB max. 0 ± 0.05 dB typ. 100 dB min. fc ± 0.01% /°c -3 dB -311° 3.01 dB 80.0 dB 100.0 dB 0 - fc 0 - 0.8 fc ± 2% max.
DC Voltage Gain
(non-inverting)
Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
(theoretical)
0.80 fc 1.00 fc 4.52 fc 6.07 fc ± 2° max. ± 1° typ. ± 0.2 dB max. ± 0.1 dB typ.
1.00 fc 2.28 fc 2.64 fc ± 2° max. ± 1° typ.
1.00 fc 3.08 fc 3.57 fc ± 2° max. ± 1° typ.
1.00 fc 4.45 fc 5.20 fc ± 2° max. ± 1° typ.
Phase Match1 Amplitude Accuracy
(theoretical)
± 0.2 dB max. ± 0.1 dB typ. 0.8 fc - 1.0 fc ± 0.3 dB max. ± 0.15 dB typ. < - 100 dB typ. 200 µVrms typ. 50 µVrms typ.
± 0.2 dB max. ± 0.1 dB typ. 0.8 fc - 1.0 fc ± 0.3 dB max. ± 0.15 dB typ. < - 100 dB typ. 200 µVrms typ. 50 µVrms typ.
± 0.2 dB max. ± 0.1 dB typ. 0.8 fc - 1.0 fc ± 0.3 dB max. ± 0.15 dB typ. < - 100 dB typ. 200 µVrms typ. 50 µVrms typ.
Total Harmonic Distortion @ 1kHz Wide Band Noise
(5 Hz - 2 MHz)
< - 100 dB typ. 200 µVrms typ. 50 µVrms typ.
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting Assembly
FMA-02A
FMA-02A
FMA-02A
FMA-02A
1.Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
4
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
828 Series
8-Bit Programmable
Model Product Specifications Transfer Function Size Range fc, fr Theoretical Transfer Characteristics Passband Ripple
(theoretical)
8-Pole High-Pass Filters
828H8E 828H8EX 828H8EY
828H8B
8-Pole Butterworth 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 29 0.0 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 37 ± 0.035 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 36 - 0.05 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz
8-Pole, 6 zero Elliptic 2.0" x 2.0" x 0.5" 1.0 Hz to 102.4 kHz Appendix A Page 38 - 0.05 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.5 dB to 120 kHz 120 kHz (-6 dB) 1 MHz
Voltage Gain
(non-inverting)
Power Bandwidth Small Signal Bandwidth Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
(theoretical)
48 dB/octave fc ± 0.01% /°c -3 dB -360° 80 dB 60.0 dB 3.01 dB 0.00 dB ± 2% max.
80 dB fr ± 0.01% /°c -0.035 dB -323.5° 80 dB 60.0 dB 3.01 dB 0.03 dB 0.00 dB fr - 1.25 fr ± 2% max.
80 dB fr ± 0.01% /°c -0.05dB -414° 80 dB 60.0 dB 3.01 dB 0.03 dB 0.00 dB fr - 1.25 fr ± 2% max.
100 dB fr ± 0.01% /°c -0.05 dB -419° 100 dB 80.0 dB 3.01 dB 0.03 dB 0.00 dB fr - 1.25 fr ± 2% max.
0.31 fc 0.42 fc 1.00 fc 2.00 fc
0.56 fr 0.60 fr 0.88 fr 1.00 fr 2.00 fr
0.64 fr 0.69 fr 0.95 fr 1.00 fr 2.00 fr
0.50 fr 0.55 fr 0.94 fr 1.00 fr 2.00 fr
Phase Match1
fc - 100 kHz ± 3° max. ± 1.5° typ.
± 4° max. ± 2° typ. 1.25 fr-100 kHz ± 2° max. ± 1° typ.
± 4° max. ± 2° typ. 1.25fr -100 kHz ± 2° max. ± 1° typ.
± 4° max. ± 2° typ. 1.25 fr-100 kHz ± 3° max. ± 1.5° typ. ± 0.5 dB max. ± 0.25 dB typ. ± 0.2 dB max. ± 0.1 dB typ.
Amplitude Accuracy
(theoretical)
± 0.3 dB max. fr-1.25 fr ± 0.15 dB typ. 1.25 fc-100 kHz ± 0.2 dB max. 1.25 fr-100 kHz ± 0.1 dB typ. < - 100 dB typ. 400 µVrms typ. 100 µVrms typ. < - 88 dB typ.
fc-1.25 fc
± 0.3 dB max. fr -1.25 fr ± 0.15 dB typ. ± 0.2 dB max. 1.25 fr-100 kHz ± 0.1 dB typ. < - 88 dB typ.
± 0.5 dB max. fr -1.25 fr ± 0.25 dB typ. ± 0.2 dB max. 1.25 fr-100 kHz ± 0.1 dB typ. < - 88 dB typ.
Total Harmonic Distortion @ 1kHz Wide Band Noise
(5 Hz - 2 MHz)
400 µVrms typ. 100 µVrms typ.
500 µVrms typ. 150 µVrms typ.
500 µVrms typ. 150 µVrms typ.
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting Assembly
FMA-02A
FMA-02A
FMA-02A
FMA-02A
1.Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
5
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
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