ETC 854L4B

854 Series
0.1 Hz to 102.4 kHz
8-Bit Programmable
2" x 4"
4-Pole Filters
Description
The 854 Series are digitally programmable low-pass
and high-pass active filters that are tunable over a
256:1 frequency range. 854 filters are available with
any one of six standard factory-set tuning ranges up
to 102.4 kHz. These units contain 8 CMOS logic
inputs that can be operated in a transparent or
latching mode.
All 854 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. 854 filters operate
from non-critical ±12 to ±18 Vdc power supplies,
have a 10 kΩ (min.) input impedance, a 10 Ω (max.)
output impedance and offer dc voltage offset
adjustment.
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
U.S. Selling Price (1-9)
Orders for Export
Minimum Order Value $150.00
Lead-Time: 2-4 weeks A.R.O.
$260.00 ea.
U.S. Selling Price + 20%
F.O.B. Haverhill, MA
Accept Visa, Mcard, Amex
Programmable Specifications . . . . . . . . . . . . . Page
Digital Tuning & Control . . . . . . . . . . . . . . . . . . . . . . 2
Available Low-Pass Models: . . . . . . . . . . . . . . . . . . .
854L4B 4-pole Butterworth . . . . . . . . . . . . . . . . . . 3
854L4L
4-pole Bessel . . . . . . . . . . . . . . . . . . . . . . 3
854L8Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . . . . 3
854L8Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . . . . 3
Available High-Pass Models: . . . . . . . . . . . . . . . . . .
854H8B 4-pole Butterworth . . . . . . . . . . . . . . . . . . 4
854H8Y2 4-pole Cheby (0.2 dB Ripple) . . . . . . . . . . 4
854H8Y5 4-pole Cheby (0.5 dB Ripple) . . . . . . . . . . 4
General Specifications:
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin-out/package data. . . . . . . . . . . . . . . . . . . . . . . . . 5
25 Locust St. • Haverhill, Massachusetts 01830 • (800) 252-7074 • (978) 374-0761 • FAX (978) 521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com • Fax on Demand: 978/521-5178
854 Series
Digital Tuning &
Control Characteristics
8-Bit Programmable Filters
Digital Tuning Characteristics
Pin-Out Key
The digital tuning interface circuits are two 4042 quad CMOS
latches which accept the following CMOS-compatible inputs:
eight tuning bits (D0 - D7), a latch strobe bit (C), and a transition
polarity bit (P).
IN
OUT
GND
"P"
"C"
+Vs
-Vs
Os
Filter tuning follows the tuning equation given below:
fc = ( fmax/256 ) [ 1 + D7 x 27 + D6 x 26 + D5 x 25 + D4 x 24 + D3
x 23 + D2 x 22 + D1 x 21 + D0 x 20 ]
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
D7 Tuning
D6 Tuning
D5 Tuning
D4 Tuning
D3 Tuning
D2 Tuning
D1 Tuning
D0 Tuning
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
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
7 (MSB)
6
5
4
3
2
1
0 (LSB)
OUT +Vs -Vs
D7
D6
D5
D4
Data Control Specifications
Data Control Lines
Functions
Data Control Modes
Mode 1
Mode 2
Input Data Levels
GND
D3
D2
Latch Strobe (C)
Transition Polarity (P)
P = 0; C = 0
P = 0; C = 0⇑
P = 1; C = 1
P = 1; C = 1⇓
D1
D0
IN Os
frequency follows input codes
frequency latched on rising edge
frequency follows input codes
frequency latched on falling edge
(CMOS Logic)
Input Voltage (Vs = 15 Vdc)
Low Level In
0 Vdc min.
High Level In
11 Vdc min.
4 Vdc max.
15 Vdc max.
Input Current
High Level In
Low Level In
- 10 -5 µA typ.
+10 -5 µA typ.
-1 µA max..
+1 µA max.
Input Capacitance
5 pF typ
7.5 pF max.
Latch Response
1
Data Set Up Time
2
Data Hold Time
Strobe Pulse Width
25 nS
50 nS
80 nS min.
Input Data Format
Frequency Select Bits
Positive Logic
Logic "1" = +Vs
Logic "0" = Gnd
Bit Weighting
D0
D7
(Binary-Coded)
LSB (least significant bit)
MSB (most significant bit)
Frequency Range
256 : 1, Binary Weighted
P C
Bottom View
Bit
Weight
MSB
---
---
---
---
---
---
LSB
27
26
25
24
23
22
21
20
fc
D7
D6
D5
D4
D3
D2
D1
D0
Corner
Frequency
0
0
0
0
0
0
0
0
fmax/256
0
0
0
0
0
0
0
1
fmax/128
0
0
0
0
0
0
1
1
fmax/64
0
0
0
0
0
1
1
1
fmax/32
0
0
0
0
1
1
1
1
fmax/16
0
0
0
1
1
1
1
1
fmax/8
0
0
1
1
1
1
1
1
fmax/4
0
1
1
1
1
1
1
1
fmax/2
1
1
1
1
1
1
1
1
fmax
Notes:
1. Frequency data must be present before occurrence of strobe edge.
2. Frequency data must be present after occurrence of strobe edge.
2
25 Locust St. • Haverhill, Massachusetts 01830 • (800) 252-7074 • (978) 374-0761 • FAX (978) 521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com • Fax on Demand: 978/521-5178
854 Series
4-Pole
Low-Pass Filters
8-Bit Programmable
Model
854L8B
854L8L
854L8Y2
854L8Y5
Transfer Function
4-Pole,
Butterworth
4-Pole,
Bessel
4-Pole, Chebychev,
0.2 dB Ripple
4-Pole, Chebychev,
0.5 dB Ripple
Size, Model 1 & 2
Model 3 thru 6
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
Range fc
0.1 Hz to 102.4 kHz
0.1 Hz to 102.4 kHz
0.1 Hz to 102.4 kHz
0.1 Hz to 102.4 kHz
Theoretical Transfer
Characteristics
Appendix A
Page 7
Appendix A
Page 2
Appendix A
Page 12
Appendix A
Page 15
Passband Ripple
0.0 dB
0.0 dB
0.20 dB
0.05 dB
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
Stopband
Attenuation Rate
24 dB/octave
24 dB/octave
24 dB/octave
24 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 0.01% /°C
-3 dB
-180°
Filter Attenuation
0.67 dB
3.01 dB
30.0 dB
40.0 dB
Product Specifications
(theoretical)
DC Voltage Gain
(non-inverting)
(theoretical)
Phase Match1
± 2% max.
0.80 fc
1.00 fc
2.37 fc
3.16 fc
0 - 0.8 fc
fc
± 0.01% /°C
-3 dB
-121°
1.86 dB
3.01 dB
30.0 dB
40.0 dB
± 2° max.
± 1° typ.
0.8 fc - 1.0 fc ± 3° max.
± 1.5° typ.
0 - fc
± 0.2 dB max.
± 0.1 dB typ.
0.8 fc - 1.0 fc ± 0.3 dB max.
± 0.15 dB typ.
0 - fc
Total Harmonic
Distortion @ 1 kHz
< - 100 dB typ.
Wide Band Noise
Amplitude Accuracy
(theoretical)
± 2% max.
0.80 fc
1.00 fc
3.50 fc
4.72 fc
± 2% max.
-0.20 dB
3.01 dB
30.0 dB
40.0 dB
0.80 fc
1.00 fc
1.89 fc
2.46 fc
± 2% max.
-0.43 dB
3.01 dB
30.0 dB
40.0 dB
0 - 0.8 fc
0.80 fc
1.00 fc
1.80 fc
2.33 fc
0.8 fc - 1.0 fc
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.
0 - 0.8 fc
< - 100 dB typ.
< - 88 dB typ.
< - 88 dB typ.
200 µVrms typ.
200 µVrms typ.
200 µVrms typ.
200 µVrms typ.
50 µVrms typ.
50 µVrms typ.
50 µVrms typ.
50 µVrms typ.
FMA-03A
FMA-03A
FMA-03A
FMA-03A
± 0.2 dB max.
± 0.1 dB typ.
0 - 0.8 fc
fc
± 0.01% /°C
-3 dB
-245°
± 2° max.
± 1° typ.
0.8 fc - 1.0 fc ± 3° max.
± 1.5° typ.
0 - 0.8 fc
± 2° max.
± 1° typ.
fc
± 0.01% /°C
-3 dB
-231°
0.8 fc - 1.0 fc
± 2° max.
± 1° typ.
± 3° max.
± 1.5° typ.
± 0.2 dB max.
± 0.1 dB typ.
± 0.3 dB max.
± 0.15 dB typ.
(5 Hz - 2 MHz)
Narrow Band Noise
(5 Hz - 100 kHz)
Filter Mounting
Assembly
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 • (800) 252-7074 • (978) 374-0761 • FAX (978) 521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com • Fax on Demand: 978/521-5178
854 Series
4-Pole
High-Pass Filters
8-Bit Programmable
Model
854H8B
854H8Y2
854H8Y5
Transfer Function
4-Pole,
Butterworth
4-Pole, Chebychev,
0.2 dB Ripple
4-Pole, Chebychev,
0.5 dB Ripple
Size, Model 1 & 2
Model 3 thru 6
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
4.0” x 2.0” x 0.6”
4.0” x 2.0” x 0.4”
Range fc
0.1 Hz to 102.4 kHz
0.1 Hz to 102.4 kHz
0.1 Hz to 102.4 kHz
Theoretical Transfer
Characteristics
Appendix A
Page 27
Appendix A
Page 31
Appendix A
Page 33
Passband Ripple
0.0 dB
0.20 dB
0.50 dB
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
Power Bandwidth
120 kHz
120 kHz
120 kHz
Small Signal Bandwidth
(-6 dB) 1 MHz
(-6 dB) 1 MHz
(-6 dB) 1 MHz
Stopband
Attenuation Rate
24 dB/octave
24 dB/octave
24 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 0.01% /°C
-3 dB
180°
Filter Attenuation
40 dB
30 dB
3.01 dB
0.02 dB
Product Specifications
(theoretical)
Voltage Gain
(non-inverting)
(theoretical)
± 2% max.
0.31 fc
0.42 fc
1.00 fc
2.00 fc
fc
± 0.01% /°C
-3 dB
231°
± 2% max.
40.0 dB
30.0 dB
3.01 dB
-0.07 dB
0.41 fc
0.53 fc
1.00 fc
2.00 fc
fc
± 0.01% /°C
-3 dB
245°
± 2% max.
40.0 dB
30.0 dB
3.01 dB
-0.25 dB
0.43 fc
0.56 fc
1.00 fc
2.00 fc
Phase Match1
fc - 100 kHz ± 3° max.
± 1.5° typ.
fc - 100 kHz ± 3° max.
± 1.5° typ.
fc - 100 kHz ± 3° max.
± 1.5° typ.
Amplitude Accuracy
1.00 - 1.25 fc ± 0.3 dB max.
± 0.15 dB typ.
1.25 fc-100 kHz± 0.2 dB max.
± 0.1 dB typ.
1.00 - 1.25 fc ± 0.3 dB max.
± 0.15 dB typ.
1.25 fc-100 kHz ± 0.2 dB max.
± 0.1 dB typ.
1.00 - 1.25 fc ± 0.3 dB max.
± 0.15 dB typ.
1.25 fc-100 kHz± 0.2 dB max.
± 0.1 dB typ.
Total Harmonic
Distortion @ 1 kHz
< - 100 dB typ.
< - 88 dB typ.
< - 88 dB typ.
Wide Band Noise
400 µVrms typ.
400 µVrms typ.
400 µVrms typ.
Narrow Band Noise
100 µVrms typ.
100 µVrms typ.
100 µVrms typ.
FMA-03A
FMA-03A
FMA-03A
(theoretical)
(5 Hz - 100 kHz)
Filter Mounting
Assembly
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 • (800) 252-7074 • (978) 374-0761 • FAX (978) 521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com • Fax on Demand: 978/521-5178
854 Series
Pin-Out and Package Data
Ordering Information
Specification
(25°C and Vs ± 15 Vdc)
Analog Input Characteristics1
Impedance
Voltage Range
Max. Safe Voltage
Analog Output Characteristics
Impedance (Closed Loop)
Linear Operating Range
Maximum Current2
Offset Voltage3
Offset Temp. Coeff.
Power Supply (±V)
Rated Voltage
Operating Range
Maximum Safe Voltage
Quiescent Current
4-Pole
Pin-Out & Package Data
10 k Ω min.
± 10 Vpeak
±Vs
4.00
M-2
0.6
11 Ω typ.
10 Ω max.
±10V
±2 mA
22 mV typ.
20 mV max.
50 µV/°C
±15 Vdc
±12 to ±18 Vdc
±18 Vdc
M-1
0.4
0.2 min
Side View
0.04 Dia.
OUT +Vs -Vs
D7
D6
D5
D4
GND
2.00
D3
D2
±13 mA typ.
±20 mA max.
Temperature
Operating
Storage
D1
D0
-20 to +70°C
-25 to +85°C
IN Os4
P C
Bottom View
Filter Mounting Assembly-See FMA-03A
Notes:
1. Input and output signal voltage referenced to supply common.
2. Output is short circuit protected to common.
DO NOT CONNECT TO ±Vs.
3. Adjustable to zero.
4. Units operate with or without offset pin connected.
DC Offset Adjustment
Ordering Information
Filter Type
Transfer Function
L - Low Pass
H - High Pass
B - Butterworth
L - Bessel
Y2 - Chebychev (0.2 dB Ripple)
Y5 - Chebychev (0.2 dB Ripple)
+ Vs
Do not connect
if trim is not
required.
20 k Ω
(Cermet)
- Vs
854L8B-3
Model Number
e.g., Model
OS
Number
1
2
3
4
5
6
Tuning
Range (Hz)
0.1 to 25.6
1.0 to 256
10 to 2560
100 to 25.6k
200 to 51.2k
400 to 102.4k
Minimum
Step(Hz)
0.1
1.0
10
100
200
400
Case
M-2
M-2
M-1
M-1
M-1
M-1
We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements,
recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements,
recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.
IN-00854-01
5
25 Locust St. • Haverhill, Massachusetts 01830 • (800) 252-7074 • (978) 374-0761 • FAX (978) 521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com • Fax on Demand: 978/521-5178
Low-Pass
4-Pole
Bessel
Appendix A
Theoretical Transfer Characteristics
Delay
(sec)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
-0.028
-0.111
-0.251
-0.448
-0.705
0.00
-12.1
-24.2
-36.3
-48.4
-60.6
.336
.336
.336
.336
.336
.336
0.60
0.70
0.80
0.85
0.90
-1.02
-1.41
-1.86
-2.11
-2.40
-72.7
-84.8
-96.8
-103
-109
.336
.336
.335
.334
.333
0.95
1.00
1.10
1.20
1.30
-2.69
-3.01
-3.71
-4.51
-5.39
-115
-121
-133
-144
-156
.332
.330
.325
.318
.308
1.40
1.50
1.60
1.70
1.80
-6.37
-7.42
-8.54
-9.71
-10.9
-166
-177
-187
-195
-204
.295
.280
.263
.246
.228
1.90
2.00
2.25
2.50
2.75
-12.2
-13.4
-16.5
-19.5
-22.4
-212
-219
-235
-248
-259
.211
.194
.158
.129
.107
3.00
3.25
3.50
4.00
5.00
-25.1
-27.6
-30.0
-34.4
-41.9
-267
-275
-281
-291
-305
.089
.076
.065
.049
.031
6.00
7.00
8.00
9.00
10.0
-48.1
-53.4
-58.0
-62.0
-65.7
-315
-321
-326
-330
-333
.021
.016
.012
.009
.008
1
0
-20
Amp (dB)
Phase
(deg)
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8 1.0
2
3
4
5 6 7
10.0
Normalized Frequency(f/fc)
Delay (Normalized)
1.0
Delay (sec)
Amp
(dB)
0.5
0.0
0.1
2
0.15
3
4
5
6
7 8 91.0
1.5
Normalized Time (1/f sec)
Step Response
1.2
Step Response (V/V)
f/fc
(Hz)
Frequency Response
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
0
1
2
3
4
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
2
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 · Fax on Demand: 978/521-5178
5
Low-Pass
4-Pole
Butterworth
Appendix A
Theoretical Transfer Characteristics
Delay
(sec)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.00
0.00
-0.00
-0.003
-0.017
0.00
-15.0
-30.1
-45.5
-61.4
-78.0
.416
.418
.423
.433
.449
.474
0.60
0.70
0.80
0.85
0.90
-0.072
-0.243
-0.674
-1.047
-1.555
-95.7
-115
-136
-147
-158
.511
.558
.604
.619
.622
0.95
1.00
1.10
1.20
1.30
-2.21
-3.01
-4.97
-7.24
-9.62
-169
-180
-200
-217
-231
.612
.588
.513
.427
.350
1.40
1.50
1.60
1.70
1.80
-12.0
-14.3
-16.4
-18.5
-20.5
-242
-252
-260
-266
-272
.289
.241
.204
.175
.152
1.90
2.00
2.25
2.50
2.75
-22.3
-24.1
-28.2
-31.8
-35.1
-277
-282
-291
-299
-304
.134
.119
.091
.072
.059
3.00
3.25
3.50
4.00
5.00
-38.2
-41.0
-43.5
-48.2
-55.9
-309
-313
-317
-322
-330
.049
.041
.035
.027
.017
6.00
7.00
8.00
9.00
10.0
-62.3
-67.6
-72.2
-76.3
-80.0
-335
-339
-341
-343
-345
.012
.009
.007
.005
.004
1
0
-20
Amp (dB)
Phase
(deg)
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8 1.0
2
3
4
5 6 7
10.0
Normalized Frequency(f/fc)
Delay (Normalized)
2.0
Delay (sec)
Amp
(dB)
1.0
0.0
0.1
2
0.15
3
4
5
6
7 8 91.0
1.5
Normalized Frequency(f/fc)
Step Response
1.2
Step Response (V/V)
f/fc
(Hz)
Frequency Response
1.0
0.8
0.6
0.4
0.2
-0.0
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
0
1
2
3
4
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
7
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 · Fax on Demand: 978/521-5178
5
Low-Pass
4-Pole, 0.2 dB Ripple
Chebychev
Appendix A
Theoretical Transfer Characteristics
Delay
(sec)
0.00
0.10
0.20
0.30
0.40
0.50
0.000
0.039
0.129
0.195
0.174
0.074
0.00
-17.3
-35.2
-54.0
-73.4
-93.2
.478
.487
.509
.533
.547
.553
0.60
0.70
0.80
0.85
0.90
0.000
0.074
0.199
0.063
-0.443
-113
-135
-162
-178
-196
.575
.654
.836
.947
1.02
0.95
1.00
1.10
1.20
1.30
-1.47
-3.01
-6.89
-10.8
-14.5
-214
-231
-257
-274
-286
.989
.873
.583
.385
.271
1.40
1.50
1.60
1.70
1.80
-17.7
-20.7
-23.4
-25.8
-28.1
-294
-300
-306
-310
-313
.202
.158
.128
.107
.090
1.90
2.00
2.25
2.50
2.75
-30.2
-32.2
-36.7
-40.6
-44.1
-316
-319
-324
-328
-331
.078
.068
.051
.039
.032
3.00
3.25
3.50
4.00
5.00
-47.3
-50.2
-52.8
-57.6
-65.5
-334
-336
-338
-341
-345
.026
.022
.018
.014
.009
6.00
7.00
8.00
9.00
10.0
-71.9
-77.3
-82.0
-86.1
-89.8
-347
-349
-351
-352
-352
.006
.004
.003
.003
.002
1
0
-20
Amp (dB)
Phase
(deg)
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8
2
1.0
3
4
5 6 7 810.0
Normalized Frequency(f/fc)
Delay (Normalized)
2.0
Delay (sec)
Amp
(dB)
1.0
0.0
0.1
2
0.15
3
4
5
6
7 8 91.0
1.5
Normalized Time (1/f sec)
Step Response
1.2
Step Response (V/V)
f/fc
(Hz)
Frequency Response
1.0
0.8
0.6
0.4
0.2
-0.0
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
0
1
2
3
4
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
12
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 · Fax on Demand: 978/521-5178
5
Low-Pass
4-Pole, 0.5 dB Ripple
Chebychev
Appendix A
Theoretical Transfer Characteristics
Delay
(sec)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.087
0.295
0.474
0.463
0.248
0.00
-17.3
-35.7
-55.7
-76.9
-98.2
.476
.492
.533
.577
.596
.583
0.60
0.70
0.80
0.85
0.90
0.025
0.072
0.432
0.482
0.062
-119
-141
-168
-185
-205
.578
.647
.881
1.06
1.18
0.95
1.00
1.10
1.20
1.30
-1.12
-3.01
-7.61
-12.0
-15.9
-226
-245
-272
-288
-298
1.13
.946
.559
.345
.235
1.40
1.50
1.60
1.70
1.80
-19.3
-22.4
-25.1
-27.6
-29.9
-305
-311
-315
-318
-321
.173
.134
.108
.089
.075
1.90
2.00
2.25
2.50
2.75
-32.1
-34.1
-38.6
-42.6
-46.1
-324
-326
-301
-334
-336
.065
.057
.042
.033
.026
3.00
3.25
3.50
4.00
5.00
-49.3
-52.2
-54.9
-59.7
-67.6
-339
-340
-342
-344
-347
.021
.018
.015
.011
.007
6.00
7.00
8.00
9.00
10.0
-74.0
-79.4
-84.1
-88.2
-91.9
-350
-351
-352
-353
-354
.005
.004
.003
.002
.002
1
0
-20
Amp (dB)
Phase
(deg)
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8
2
1.0
3
4
5 6 7 810.0
Normalized Frequency(f/fc)
Delay (Normalized)
2.0
Delay (sec)
Amp
(dB)
1.0
0.0
0.1
2
0.15
3
4
5
6
7 8 91.0
1.5
Normalized Time (1/f sec)
Step Response
1.2
Step Response (V/V)
f/fc
(Hz)
Frequency Response
1.0
0.8
0.6
0.4
0.2
-0.0
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
0
1
2
3
4
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
15
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 · Fax on Demand: 978/521-5178
5
High-Pass
4-Pole
Butterworth
Appendix A
Theoretical Transfer Characteristics
Amp
(dB)
Phase
(deg)
Delay
(sec)
0.10
0.20
0.30
0.40
0.50
-80.0
-55.9
-41.8
-31.8
-24.1
345
330
314
299
282
.418
.423
.433
.449
.474
0.60
0.70
0.80
0.85
0.90
-17.8
-12.6
-8.43
-6.69
-5.22
264
245
224
213
202
.511
.558
.604
.619
.622
0.95
1.00
1.20
1.40
1.60
-3.99
-3.01
-0.908
-0.285
-0.100
191
180
143
118
100
.612
.588
.427
.289
.204
1.80
2.00
2.50
3.00
4.00
-0.039
-0.017
-0.003
-0.001
0.00
87.6
78.0
61.4
50.7
37.8
.152
.119
.072
.049
.027
5.00
6.00
7.00
8.00
9.00
10.0
0.00
0.00
0.00
0.00
0.00
0.00
30.1
25.1
21.4
18.8
16.7
15.0
.017
.012
.009
.007
.005
.004
1
0
-20
Amp (dB)
f/fc
(Hz)
Frequency Response
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8 1.0
2
3
4
5 6 7
10.0
Normalized Frequency(f/fc)
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
27
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 · Fax on Demand: 978/521-5178
High-Pass
4-Pole, 0.2 dB Ripple
Chebychev
Appendix A
Theoretical Transfer Characteristics
Amp
(dB)
Phase
(deg)
Delay
(sec)
0.10
0.20
0.30
0.40
0.50
-89.8
-65.1
-51.1
-40.6
-32.2
352
345
337
328
319
.212
.218
.228
.245
.272
0.60
0.70
0.80
0.90
1.00
-25.0
-18.6
-12.7
-7.34
-3.01
308
296
280
259
231
.314
.383
.500
.686
.873
1.20
1.50
1.70
2.00
2.50
.140
.031
.003
.074
.174
172
128
111
93.2
73.4
.633
.275
.197
.138
.088
3.00
4.00
5.00
6.00
7.00
.200
.170
.129
.098
.076
60.4
44.5
35.2
29.2
24.9
.060
.033
.020
.014
.010
8.00
9.00
10.0
.060
.048
.040
21.7
19.3
17.3
.008
.006
.005
1
0
-20
Amp (dB)
f/fc
(Hz)
Frequency Response
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8
1.0
2
3
4
5 6 7 810.0
Normalized Frequency(f/fc)
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
31
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 · Fax on Demand: 978/521-5178
High-Pass
4-Pole, 0.5 dB Ripple
Chebychev
Appendix A
Theoretical Transfer Characteristics
Amp
(dB)
Phase
(deg)
Delay
(sec)
0.10
0.20
0.30
0.40
0.50
-91.9
-67.6
-53.1
-42.6
-34.1
354
347
341
334
326
.174
.179
.188
.203
.226
0.60
0.70
0.80
0.90
1.00
-26.8
-20.2
-14.0
-8.13
-3.01
317
307
293
274
245
.263
.326
.440
.651
.946
1.20
1.50
1.70
2.00
2.50
.500
.014
.043
.249
.469
179
133
117
98.2
76.9
.693
.271
.199
.146
.095
3.00
4.00
5.00
6.00
7.00
.498
.401
.296
.221
.169
62.7
45.5
35.7
29.4
25.0
.065
.035
.021
.014
.010
8.00
9.00
10.0
.133
.107
.088
21.8
19.3
17.3
.008
.006
.005
1
0
-20
Amp (dB)
f/fc
(Hz)
Frequency Response
-40
-60
-80
-100
0.1
2
3
4
5 6 7 8
1.0
2
3
4
5 6 7 810.0
Normalized Frequency(f/fc)
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
33
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 · Fax on Demand: 978/521-5178