828L8D80-5 [FREQUENCYDEVICES]
2" x 2" 8-Pole Filters; 2 “×2”的8极点滤波器型号: | 828L8D80-5 |
厂家: | FREQUENCY DEVICES, INC. |
描述: | 2" x 2" 8-Pole Filters |
文件: | 总19页 (文件大小:565K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
828 Series
2" x 2"
8-Pole Filters
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 kΩ (min.) input and a 10 Ω (max.) output
impedance.
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.
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
828L8D608-pole constant delay (-60dB) . . . . . . . . 4
828L8D808-pole constant delay (-80dB) . . . . . . . . 4
828L8D108-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:
• 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
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin-out/package data. . . . . . . . . . . . . . . . . . . . . . . . 6
• Signal reconstruction
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
828 Series
Digital Tuning &
Control Characteristics
8-Bit Programmable Filters
Pin-Out Key
Digital Tuning Characteristics
IN
Analog Input Signal
D7 Tuning Bit 7 (MSB)
D6 Tuning Bit 6
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).
OUT Analog Output Signal
GND Power and Signal Return
+Vs Supply Voltage, Positive
-Vs Supply Voltage, Negative
D5 Tuning Bit 5
D4 Tuning Bit 4
Filter tuning follows the tuning equation given below:
D3 Tuning Bit 3
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 ]
Os
Offset Adjustment
D2 Tuning Bit 2
D1 Tuning Bit 1
D0 Tuning Bit 0 (LSB)
where D1 - D7 = "0" or "1", and
OUT +Vs
-Vs
fmax = Maximum tuning frequency;
fc = corner frequency;
D7
Minimum tunable frequency = fmax/256 (D0 thru D7 = 0);
D6
Minimum frequency step (Resolution) = fmax/256
D5
D4
GND
D3
D2
D1
D0
Data Input Specifications
Input Data Levels
(CMOS Logic)
Input Voltage (Vs = 15 Vdc)
Low Level In
High Level In
0 Vdc min.
11 Vdc min.
4 Vdc max.
15 Vdc max.
IN Os4
Input Current
High Level In
Low Level In
Bottom View
- 10 -5 µA typ.
+10 -5 µA typ.
-1 µA max..
+1 µA max.
MSB ---
27 26
---
---
---
---
---
LSB
Bit
Weight
Input Capacitance
Input Data Format
Positive Logic
5 pF typ
7.5 pF max.
25
24
23
22
21
20
fc
Frequency Select Bits
Corner
Frequency
D7
0
0
0
0
0
0
0
0
1
D6
0
0
0
0
0
0
0
1
1
D5
D4
D3
D2
D1
D0
Logic "1" = +Vs
Logic "0" = Gnd
0
0
0
0
0
0
1
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
fmax/256
fmax/128
fmax/64
fmax/32
fmax/16
fmax/8
Bit Weighting
D0
D7
(Binary-Coded)
LSB (least significant bit)
MSB (most significant bit)
Frequency Range
256 : 1, Binary Weighted
fmax/4
fmax/2
fmax
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
828 Series
8-Pole
Low-Pass Filters
8-Bit Programmable
Model
828L8B
828L8E
828L8EX
828L8EY
Product Specifications
Transfer Function
8-Pole
Butterworth
8-Pole, 6 zero
Elliptic
8-Pole, 6 zero
Elliptic
8-Pole, 6 zero
Elliptic
Size
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
Range fc, fr
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
Theoretical Transfer
Characteristics
Appendix A
Page 9
Appendix A
Page 24
Appendix A
Page 23
Appendix A
Page 25
Passband Ripple
(theoretical)
0.0 dB
0.035 dB
- 0.05 dB
- 0.05 dB
DC Voltage Gain
(non-inverting)
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
Stopband
Attenuation Rate
48 dB/octave
80 dB min.
80 dB min.
100 dB min.
Cutoff Frequency
Stability
Amplitude
Phase
fc
2% max.
fr
2% max.
fr
2% max.
fr
2% max.
0.01% /°c
-3 dB
-360°
0.01% /°c
-0.035 dB
-323.5°
0.01% /°c
-0.05dB
-414°
0.01% /°c
-0.05 dB
-419°
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
0.035 dB
3.01 dB
60.0 dB
80.0 dB
1.00 fr
1.13 fr
1.67 fr
1.77 fr
0.05 dB
3.01 dB
60.0 dB
80.0 dB
1.00 fr 0.05 dB
1.00 fr
1.06 fr
1.83 fr
2.00 fr
1.05 fr 3.01 dB
1.45 fr 80.0 dB
1.56 fr 100.0 dB
1
Phase Match
0 - 0.8 fc
2° max.
1° typ.
0 - 0.8 fr
2° max.
1° typ.
4° max.
2° typ.
0 - 0.8 fr
3° max.
1.5° typ.
0 - 0.8 fr
3° max.
1.5° typ.
4° max.
2° typ.
0.8 fc - 1.0 fc 3° max.
1.5° typ.
0.8 fr - 1.0 fr
0.8 fr - 1.0 fr 4° max.
2° typ.
0.8 fr - 1.0 fr
Amplitude Accuracy
(theoretical)
0 - 0.8 fc
0.2 dB max. 0 - 0.8 fr
0.1 dB typ.
.2 dB max.
.1 dB typ.
0 - 0.8 fr
0.2 dB max. 0 - 0.8 fr
0.2 dB max.
0.1 dB typ.
0.5 dB max.
0.25 dB typ.
0.1 dB typ.
0.8 fc - 1.0 fc 0.3 dB max. 0.8 fr - 1.0 fr .3 dB max.
0.8 fr - 1.0 fr 0.5 dB max. 0.8 fr - 1.0 fr
0.25 dB typ.
0.15 dB typ.
.15 dB typ.
Total Harmonic
< - 100 dB typ.
200 µVrms typ.
50 µVrms typ.
< - 88 dB typ.
200 µVrms typ.
50 µVrms typ.
< - 88 dB typ.
250 µVrms typ.
75 µVrms typ.
< - 88 dB typ.
250 µVrms typ.
75 µVrms typ.
Distortion @ 1kHz
Wide Band Noise
(5 Hz - 2 MHz)
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
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
828 Series
8-Pole
Low-Pass Filters
8-Bit Programmable
Model
828L8L
828L8D60
828L8D80
828L8D10
Product Specifications
Transfer Function
8-Pole
Bessel
8-Pole, 6 zero
Constant Delay
8-Pole, 6 zero
Constant Delay
8-Pole, 6 zero
Constant Delay
Size
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
Range fc
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
Theoretical Transfer
Characteristics
Appendix A
Page 4
Appendix A
Page 20
Appendix A
Page 21
Appendix A
Page 22
Passband Ripple
(theoretical)
0.0 dB
0.15 dB
0.15 dB
0.15 dB
DC Voltage Gain
(non-inverting)
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
0
0
0.1 dB max.
0.05 dB typ.
Stopband
Attenuation Rate
48 dB/octave
60 dB min.
80 dB min.
100 dB min.
Cutoff Frequency
Stability
Amplitude
Phase
fc
2% max.
fc
2% max.
fc
2% max.
fc
2% max.
0.01% /°c
-3 dB
-182°
0.01% /°c
-3 dB
-306°
0.01% /°c
-3 dB
-306°
0.01% /°c
-3 dB
-311°
Filter Attenuation
(theoretical)
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
4.52 fc
6.07 fc
3.01 dB
40.0 dB
60.0 dB
1.00 fc
2.28 fc
2.64 fc
3.01 dB
60.0 dB
80.0 dB
1.00 fc 3.01 dB
3.08 fc 80.0 dB
3.57 fc 100.0 dB
1.00 fc
4.45 fc
5.20 fc
1
Phase Match
0 - fc
2° max.
1° typ.
0 - fc
2° max.
1° typ.
0 - fc
2° max.
1° typ.
0 - fc
2° max.
1° typ.
Amplitude Accuracy
(theoretical)
0 - fc
0.2 dB max. 0 - 0.8 fc
0.1 dB typ.
0.2 dB max. 0 - 0.8 fc
0.1 dB typ.
0.2 dB max. 0 - 0.8 fc
0.1 dB typ.
0.2 dB max.
0.1 dB typ.
0.8 fc - 1.0 fc 0.3 dB max. 0.8 fc - 1.0 fc 0.3 dB max. 0.8 fc - 1.0 fc 0.3 dB max.
0.15 dB typ.
0.15 dB typ.
0.15 dB typ.
Total Harmonic
< - 100 dB typ.
200 µVrms typ.
50 µVrms typ.
< - 100 dB typ.
200 µVrms typ.
50 µVrms typ.
< - 100 dB typ.
200 µVrms typ.
50 µVrms typ.
< - 100 dB typ.
200 µVrms typ.
50 µVrms typ.
Distortion @ 1kHz
Wide Band Noise
(5 Hz - 2 MHz)
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
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
828 Series
8-Pole
High-Pass Filters
8-Bit Programmable
Model
828H8B
828H8E
828H8EX
828H8EY
Product Specifications
Transfer Function
8-Pole
Butterworth
8-Pole, 6 zero
Elliptic
8-Pole, 6 zero
Elliptic
8-Pole, 6 zero
Elliptic
Size
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
2.0” x 2.0” x 0.5”
Range fc, fr
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
1.0 Hz to 102.4 kHz
Theoretical Transfer
Characteristics
Appendix A
Page 29
Appendix A
Page 37
Appendix A
Page 36
Appendix A
Page 38
Passband Ripple
(theoretical)
0.0 dB
0.035 dB
- 0.05 dB
- 0.05 dB
Voltage Gain
(non-inverting)
0
0
0.2 dB to 100 kHz
0.5 dB to 120 kHz
0
0
0.2 dB to 100 kHz
0.5 dB to 120 kHz
0
0
0.2 dB to 100 kHz
0.5 dB to 120 kHz
0
0
0.2 dB to 100 kHz
0.5 dB to 120 kHz
Power Bandwidth
120 kHz
120 kHz
120 kHz
120 kHz
Small Signal
Bandwidth
(-6 dB) 1 MHz
(-6 dB) 1 MHz
(-6 dB) 1 MHz
(-6 dB) 1 MHz
Stopband
Attenuation Rate
48 dB/octave
80 dB
80 dB
100 dB
Cutoff Frequency
Stability
Amplitude
Phase
fc
2% max.
fr
2% max.
fr
2% max.
fr
2% max.
0.01% /°c
-3 dB
-360°
0.01% /°c
-0.035 dB
-323.5°
0.01% /°c
-0.05dB
-414°
0.01% /°c
-0.05 dB
-419°
Filter Attenuation
(theoretical)
80 dB
0.31 fc
0.42 fc
1.00 fc
2.00 fc
80 dB
0.56 fr
0.60 fr
0.88 fr
1.00 fr
2.00 fr
80 dB
0.64 fr 100 dB
0.50 fr
60.0 dB
3.01 dB
0.00 dB
60.0 dB
3.01 dB
0.03 dB
0.00 dB
60.0 dB
3.01 dB
0.03 dB
0.00 dB
0.69 fr 80.0 dB
0.95 fr 3.01 dB
1.00 fr 0.03 dB
2.00 fr 0.00 dB
0.55 fr
0.94 fr
1.00 fr
2.00 fr
1
Phase Match
fc - 100 kHz
fc-1.25 fc
3° max.
1.5° typ.
fr - 1.25 fr
4° max.
2° typ.
fr - 1.25 fr
4° max.
2° typ.
fr - 1.25 fr
4° max.
2° typ.
1.25 fr-100 kHz 2° max.
1° typ.
1.25fr -100 kHz 2° max.
1° typ.
1.25 fr-100 kHz 3° max.
1.5° typ.
Amplitude Accuracy
0.3 dB max. fr-1.25 fr
0.15 dB typ.
0.3 dB max. fr -1.25 fr
0.15 dB typ.
0.5 dB max. fr -1.25 fr
0.25 dB typ.
0.5 dB max.
0.25 dB typ.
(theoretical)
1.25 fc-100kHz 0.2 dB max. 1.25 fr-100 kHz 0.2 dB max. 1.25 fr-100 kHz 0.2 dB max. 1.25 fr-100 kHz 0.2 dB max.
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
0.1 dB typ.
Total Harmonic
< - 100 dB typ.
400 µVrms typ.
100 µVrms typ.
< - 88 dB typ.
400 µVrms typ.
100 µVrms typ.
< - 88 dB typ.
500 µVrms typ.
150 µVrms typ.
< - 88 dB typ.
500 µVrms typ.
150 µVrms typ.
Distortion @ 1kHz
Wide Band Noise
(5 Hz - 2 MHz)
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
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
828 Series
Pin-Out and Package Data
Ordering Information
Specification
(25°C and Vs 15 Vdc)
1
Analog Input Characteristics
Pin-Out & Package Data
Impedance
10 k Ω min.
10 Vpeak
Vs
2.00
Voltage Range
Max. Safe Voltage
G-3
Analog Output Characteristics
Impedance (Closed Loop)
0.5
11 Ω typ.
10 Ω max.
10V
0.15 min.
Linear Operating Range
Maximum Current2
Offset Voltage3
Side View
0.025 Dia.
2 mA
All dimensions are in inches
All Case Dimensions 0.02"
Grid Dimensions 0.1" x 0.1"
22 mV typ.
20 mV max.
50 µV/°C
OUT +Vs
-Vs
Offset Temp. Coeff.
Power Supply ( V )
s
D7
Rated Voltage
15 Vdc
D6
Operating Range
Maximum Safe Voltage
Quiescent Current
8 Pole
12 to 18 Vdc
18 Vdc
D5
D4
GND
D3
D2
D1
D0
2.00
25 mA typ.
40 mA max.
Temperature
Operating
Storage
-20 to +70°C
-25 to +85°C
IN Os4
Notes:
Bottom View
1. Input and output signal voltage referenced to supply common.
2. Output is short circuit protected to common.
DO NOT CONNECT TO Vs.
Filter Mounting Assembly-See FMA-02A
3. Adjustable to zero.
4. Units operate with or without offset pin connected.
Ordering Information
Filter Type
Transfer Function
L - Low Pass
H - High Pass
B - Butterworth
DC Offset Adjustment
L - Bessel
D60 - constant delay (-60 dB)
D80 - constant delay (-80 dB)
D10 - constant delay (-100 dB)
E - elliptic 1.77 (-80 dB)
EX- elliptic 1.56 (-80dB)
EY - elliptic 2.00 (-100 dB)
+ Vs
Do not connect
if trim is not
required.
828L8E-3
Model Number
20 k Ω
(Cermet)
OS
e.g.,Model
Tuning Minimum
Number
Range (Hz)
1.0 to 256
10 to 2560
100 to 25.6k
200 to 51.2k
400 to 102.4k
Step(Hz)
1.0
Case
G-3
G-3
G-3
G-3
G-3
2
3
4
5
6
10
100
200
400
- Vs
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-00828-00
6
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
Product Handling
Procedure
Programmable Filter Modules Power Sequence & ESD
November 2000
Programmable Filters Modules
818, 824, 828, 828BP, 828BR, 854, 858, R854, R858
I. Scope
The following precautions are necessary when handling and installing Frequency Devices
programmable filter modules.
II. Digital Circuit Description
The digital input pins connect directly to 4000 series CMOS logic, such as the 4053 analog switch. The
power supply (Vss) for the digital logic on the module comes directly from the +15 Volt pin on the
module. This sets the threshold voltage at 11.0 V minimum to 15.0 V maximum for a "1" (High) level
and 0.0 V minimum to 4.0 V maximum for a "0" (Low) level. Applying a voltage between 4.0 and 11.0
V will produce unpredictable operation. Connecting 5 Volt or 3.3 V logic devices directly to the filter
module without using a voltage translator will result in erratic operation of the filter.
III. (VERY IMPORTANT) Power-Up and Power-Down Sequence
Do not plug-in or un-plug module while power is applied. It is imperative that power is
supplied to the + 15 V pin on the filter module before or at the same instance that any digital pin is
pulled High (> 0.0 V). Failure to do this will result in excessive current flowing through the digital input
pin and through a protection diode internal to the 4000 logic, which will result in damage to the module.
The proper power-up and power-down sequence is:
1. Connect filter module ground.
2. Connect filter module +15 V.
3. Connect filter module -15 V.
4. Connect the input signal.
All four of the above steps can also occur simultaneously. Power-down should occur in the reverse
order.
IV. ESD Issues
Like most modern electronic equipment, the modules can be damaged by electrostatic discharge (ESD).
The modules are shipped from the factory in sealed, anti-static packaging and should be kept in the
sealed package prior to mounting on a circuit board. The following additional rules should also be
observed when handling the modules after they are removed from the factory packaging:
1. Only a person wearing a properly grounded wrist strap should handle the modules.
2. Any work surface that the modules are placed on must be properly ESD grounded.
3. Any insulating materials capable of generating static charge (such as paper) should be kept
away from the modules.
Static generating clothing should be covered with an ESD-protective smock.
7
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
8-Pole
Bessel
Appendix A
Low-Pass
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.00
-18.2
-36.4
-54.7
-72.9
-91.1
.506
.506
.506
.506
.506
.506
-0.029
-0.117
-0.264
-0.470
-0.737
0.60
0.70
0.80
0.85
0.90
-1.06
-1.45
-1.91
-2.16
-2.42
-109
-128
-146
-155
-164
.506
.506
.506
.506
.506
2
2
3 4 5 6 7
0.1
3 4 5 6 781.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.10
1.20
1.30
-2.71
-3.01
-3.67
-4.40
-5.20
-173
-182
-200
-219
-237
.506
.506
.506
.506
.506
Delay (Normalized)
1.0
0.5
0.0
1.40
1.50
1.60
1.70
1.80
-6.10
-7.08
-8.16
-9.36
-10.7
-255
-273
-291
-309
-327
.505
.504
.502
.498
.492
1.90
2.00
2.25
2.50
2.75
-12.1
-13.7
-18.1
-23.1
-28.3
-345
-362
-402
-436
-465
.482
.468
.417
.352
.291
0.15 2
3
4
5 6 7 8 9
1.5
0.1
1.0
3.00
3.25
3.50
4.00
5.00
-33.4
-38.3
-43.1
-51.8
-66.8
-489
-509
-526
-552
-587
.241
.201
.170
.126
.077
Normalized Time (1/f sec)
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
6.00
7.00
8.00
9.00
10.0
-79.2
-89.8
-99.0
-107
-114
-610
-626
-638
-647
-655
.052
.038
.029
.023
.018
-0.0
-0.2
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
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
8
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
Low-Pass
8-Pole
Appendix A
Butterworth
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-29.4
-59.0
-89.1
-120
-152
.816
.819
.828
.843
.867
.903
0.60
0.70
0.80
0.85
0.90
-0.001
-0.014
-0.121
-0.311
-0.738
-185
-221
-261
-283
-307
.956
1.04
1.19
1.29
1.40
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.10
1.20
1.30
-1.58
-3.01
-7.48
-12.9
-18.2
-333
-360
-408
-445
-472
1.48
1.46
1.17
.873
.672
Delay (Normalized)
2.0
1.0
0.0
1.40
1.50
1.60
1.70
1.80
-23.4
-28.2
-32.7
-36.9
-40.8
-494
-511
-526
-539
-550
.540
.448
.380
.328
.287
1.90
2.00
2.25
2.50
2.75
-44.6
-48.2
-56.3
-63.7
-70.3
-560
-568
-586
-600
-611
.253
.226
.174
.139
.113
0.15 2
3
4
1.5
0.1
5 6 7 8 91.0
3.00
3.25
3.50
4.00
5.00
-76.3
-81.9
-87.1
-96.3
-112
-621
-629
-635
-646
-661
.094
.080
.069
.052
.033
Normalized Time (1/f sec)
Step Response
6.00
7.00
8.00
9.00
10.0
-125
-135
-144
-153
-160
-671
-678
-683
-687
-691
.023
.017
.013
.010
.008
1.2
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
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
9
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
8-Pole, 6-Zero
Constant Delay
Appendix A
Low-Pass (60 dB)
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-28.0
-55.9
-83.9
-112
.776
.776
.776
.776
.776
0.005
0.012
0.005
-0.042
0.50
0.60
0.70
0.80
0.85
-0.161
-0.384
-0.745
-1.28
-140
-168
-196
-224
-238
.776
.776
.776
.776
.776
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
-1.62
Normalized Frequency(f/fc)
-252
-265
-279
-307
-334
0.90
0.95
1.00
1.10
1.20
-2.02
-2.48
-3.01
-4.29
-5.91
.776
.775
.773
.766
.749
Delay (Normalized)
1.0
0.5
0.0
1.40
1.60
1.80
2.00
2.25
-10.3
-15.9
-22.4
-29.4
-39.0
-386
-431
-467
-495
-523
.675
.558
.443
.351
.268
2.50
2.75
3.00
3.25
3.50
-50.5
-78.0
-63.7
-63.5
-66.9
-544
-561
-395
-407
-417
.212
.171
.142
.119
.102
2
3
4
0.15
1.5
3.75
4.00
4.25
4.50
4.75
-74.7
-85.0
-72.0
-67.9
-65.8
-425
-253
-259
-265
-270
.088
.077
.068
.060
.054
0.1
5 6 7 8 91.0
Normalized Time (1/f sec)
Step Response
5.00
5.25
5.50
5.75
6.00
-64.6
-63.9
-63.5
-63.3
-63.2
-275
-279
-283
-286
-289
.048
.044
.040
.036
.033
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
6.50
7.00
8.00
9.00
10.0
-63.3
-63.7
-64.7
-66.0
-67.3
-295
-299
-307
-313
-318
.028
.024
.019
.015
.012
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
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
10
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
8-Pole, 6-Zero
Constant Delay
Appendix A
Low-Pass (80 dB)
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-30.7
-61.3
-92.0
-123
.852
.852
.852
.852
.852
0.017
0.058
0.099
0.105
0.50
0.60
0.70
0.80
0.85
0.034
-0.157
-0.510
-1.07
-153
-184
-215
-245
-261
.852
.852
.852
.851
.850
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
-1.44
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-1.89
-2.41
-3.01
-4.50
-6.39
-276
-291
-306
-336
-365
.849
.846
.841
.821
.783
Delay (Normalized)
1.0
0.5
0.0
1.40
1.60
1.80
2.00
2.25
-11.3
-17.1
-23.2
-29.1
-36.3
-417
-459
-492
-517
-542
.656
.512
.396
.312
.239
2.50
2.75
3.00
3.25
3.50
-43.4
-50.3
-57.6
-62.5
-75.4
-561
-576
-589
-599
-608
.189
.153
.127
.107
.092
2
3
4
0.15
1.5
3.75
4.00
4.25
4.50
4.75
-98.3
-86.3
-84.1
-85.1
-87.9
-616
-442
-448
-454
-458
.079
.069
.061
.054
.049
0.1
5 6 7 8 91.0
Normalized Time (1/f sec)
Step Response
5.00
5.25
5.50
5.75
6.00
-92.8
-104
-101
-93.3
-89.9
-462
-466
-289
-293
-295
.044
.040
.036
.033
.030
1.2
1.0
0.8
0.6
0.4
0.2
6.50
7.00
8.00
9.00
10.0
-86.6
-85.1
-84.1
-84.3
-84.9
-300
-305
-312
-317
-321
.026
.022
.017
.013
.011
-0.0
-0.2
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
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
11 \
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
8-Pole, 6-Zero
Constant Delay
Appendix A
Low-Pass (100 dB)
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-31.1
-62.3
-93.4
-125
.865
.865
.865
.865
.865
-40
0.015
0.051
0.085
0.085
-60
-80
0.50
0.60
0.70
0.80
0.85
0.010
-0.182
-0.532
-1.09
-156
-187
-218
-249
-265
.865
.865
.865
.864
.863
-100
-120
2
2
3 4 5 67
0.1
3 4 5 678 1.0
10.0
-1.45
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-1.89
-2.41
-3.01
-4.50
-6.38
-280
-296
-311
-341
-370
.861
.857
.851
.828
.785
Delay (Normalized)
1.0
0.5
0.0
1.40
1.60
1.80
2.00
2.25
-11.2
-16.8
-22.5
-28.0
-34.5
-422
-464
-496
-520
-544
.650
.504
.389
.306
.235
2.50
2.75
3.00
3.50
4.00
-40.5
-46.1
-51.4
-61.5
-71.2
-563
-578
-591
-610
-624
.186
.151
.125
.090
.068
2
3
4
0.15
1.5
4.50
5.00
5.50
6.00
6.20
-81.3
-93.4
-142
-105
-105
-635
-643
-651
-476
-478
.054
.043
.036
.030
.028
0.1
5 6 7 8 91.0
Normalized Time (1/f sec)
Step Response
6.50
7.00
8.00
9.00
10.0
-106
-110
-122
-109
-106
-481
-486
-312
-318
-322
.025
.022
.017
.013
.011
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
12.0
14.0
16.0
18.0
20.0
-105
-106
-107
-108
-109
-328
-333
-336
-339
-341
.007
.005
.004
.003
.003
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
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
12
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
8-Pole, 6-Zero
Elliptic, 1.56
Low-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-29.7
-59.8
-90.5
-122
0.823
0.829
0.844
0.865
0.904
-0.001
-0.013
-0.040
-0.049
0.50
0.55
0.60
0.65
0.70
-0.018
-0.003
-0.002
-0.019
-0.042
-156
-174
-192
-212
-233
0.972
1.016
1.064
1.116
1.178
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.75
0.80
0.85
0.90
0.95
-0.049
-0.026
-0.001
-0.024
-0.045
-255
-279
-305
-335
-369
1.264
1.388
1.557
1.767
2.111
Delay (Normalized)
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.20
-0.050
-10.48
-25.96
-39.45
-52.87
-69.11
-89.09
-85.32
-89.95
-103.5
-95.94
-89.31
-86.44
-84.96
-84.54
-414
-531
-576
-598
-614
-624
-453
-459
-463
-465
-288
-290
-292
-295
-302
3.062
2.043
0.814
0.493
0.348
0.265
0.211
0.174
0.156
0.147
0.158
0.126
0.117
0.110
0.087
4.0
2.0
0.8
0.0
2
3
4
5 6 7 8 91.0
0.15
1.5
0.1
Normalized Time (1/f sec)
2.40
2.60
2.80
3.00
3.50
4.00
5.00
6.00
7.00
-88.65
-99.78
-99.97
-90.20
-85.09
-84.04
-84.76
-86.45
-88.31
-307
-311
-135
-139
-145
-150
-156
-160
-163
0.069
0.057
0.048
0.041
0.029
0.022
0.014
0.009
0.007
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
8.00
9.00
10.0
-90.11
-91.82
-93.41
-165
-167
-168
0.005
0.004
0.003
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 =
0
1
2
3
4
5
Normalized Time (1/f sec)
Actual Corner Frequency (fc) in Hz
13
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
8-Pole, 6-Zero
Elliptic, 1.77
Low-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-25.7
-51.6
-77.9
-105
0.713
0.716
0.724
0.740
0.767
-0.004
-0.014
-0.024
-0.020
0.50
0.55
0.60
0.65
0.70
0.007
0.022
0.033
0.031
0.014
-133
-148
-163
-179
-196
0.811
0.840
0.872
0.908
0.946
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.75
0.80
0.85
0.90
0.95
-0.015
-0.041
-0.046
-0.016
-0.025
-213
-232
-251
-272
-296
0.989
1.04
1.12
1.23
1.40
Delay (Normalized)
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.20
-0.035
-1.76
-8.28
-18.4
-29.3
-40.1
-51.5
-65.2
-75.0
-113.0
-83.6
-82.0
-83.7
-87.8
-85.8
-323
-392
-467
-522
-558
-578
-594
-606
-611
-616
-440
-444
-447
-450
-280
1.65
2.14
1.86
1.19
0.753
0.517
0.381
0.296
0.265
0.239
0.217
0.198
0.182
0.168
0.126
4.0
2.0
0.8
0.0
2
3
4
5 6 7 8 91.0
0.15
1.5
0.1
Normalized Time (1/f sec)
2.40
2.60
2.80
3.00
3.50
4.00
5.00
6.00
7.00
-82.0
-83.5
-88.2
-99.9
-87.2
-83.1
-82.1
-83.1
-84.6
-289
-295
-301
-305
-134
-140
-148
-154
-157
0.099
0.081
0.067
0.057
0.040
0.030
0.018
0.013
0.009
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
8.00
9.00
10.0
-86.2
-87.8
-89.3
-160
-163
-164
0.007
0.005
0.004
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 =
0
1
2
3
4
5
Normalized Time (1/f sec)
Actual Corner Frequency (fc) in Hz
14
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
8-Pole, 6-Zero
Elliptic, 2.00
Low-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.00
0.00
-31.9
-64.2
-97.0
-131
0.885
0.891
0.903
0.922
0.958
-40
-0.001
-0.015
-0.040
-0.042
-60
-80
0.50
0.55
0.60
0.65
0.70
-0.001
0.000
-0.007
-0.027
-0.045
-166
-185
-204
-225
-245
1.020
1.057
1.099
1.140
1.193
-100
-120
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.75
0.80
0.85
0.90
0.95
-0.040
-0.014
-0.001
-0.031
-0.036
-268
-291
-317
-346
-378
1.269
1.377
1.513
1.677
1.960
Delay (Normalized)
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.20
-0.046
-7.910
-21.06
-31.96
-41.51
-50.35
-58.90
-67.54
-72.04
-76.79
-81.93
-87.78
-95.04
-106.6
-106.0
-419
-525
-573
-597
-612
-623
-632
-639
-642
-645
-647
-650
-652
-654
-481
2.681
2.127
0.856
0.509
0.357
0.271
0.216
0.177
0.162
0.149
0.138
0.128
0.119
0.111
0.087
4.0
2.0
0.8
0.0
0.15 2
3
4
1.5
0.1
5 6 7 8 91.0
Normalized Time (1/f sec)
2.40
2.60
2.80
3.00
3.50
4.00
5.00
6.00
7.00
-121.3
-106.5
-105.0
-106.4
-123.6
-111.5
-105.4
-105.1
-106.0
-307
-311
-315
-318
-325
-149
-156
-160
-163
0.070
0.058
0.049
0.042
0.030
0.022
0.014
0.010
0.007
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
8.00
9.00
10.0
-107.3
-108.6
-110.0
-165
-167
-168
0.005
0.004
0.003
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 =
0
1
2
3
4
5
Normalized Time (1/f sec)
Actual Corner Frequency (fc) in Hz
15
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
High-Pass
8-Pole
Appendix A
Butterworth
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.10
0.20
0.30
0.40
0.50
-160
-112
-83.7
-63.7
-48.2
691
661
631
600
568
0.819
0.828
0.843
0.867
0.903
0.60
0.70
0.80
0.85
0.90
-35.5
-24.8
-15.6
-11.6
-8.06
535
499
459
437
413
.956
1.04
1.19
1.29
1.40
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.20
1.40
1.60
-5.15
386
360
275
226
194
1.48
-3.01
1.46
-0.229
-0.020
-0.002
0.873
0.540
0.380
1.80
2.00
2.50
3.00
4.00
0.00
0.00
0.00
0.00
0.00
170
152
120
99.2
74.0
0.287
0.226
0.139
0.094
0.052
5.00
6.00
7.00
8.00
9.00
10.0
0.00
0.00
0.00
0.00
0.00
0.00
59.0
49.0
42.1
36.8
32.7
29.4
0.033
0.023
0.017
0.013
0.010
0.008
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
16
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
8-Pole, 6-Zero
Elliptic, 1.56
High-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.10
0.20
0.30
0.40
0.50
-93.4
-84.8
-86.0
-92.6
-85.0
168
156
143
310
295
0.334
0.344
0.363
0.392
0.439
0.55
0.60
0.70
0.80
0.85
-114
287
458
617
589
569
0.472
0.515
0.652
0.962
1.325
-84.1
-57.0
-32.8
-22.6
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-12.3
-3.08
-0.05
-0.03
-0.01
538
483
414
341
296
2.198
3.993
3.062
1.498
1.039
1.30
1.40
1.50
1.60
1.70
-0.04
-0.05
-0.03
-0.01
0.00
264
239
219
202
188
0.773
0.612
0.505
0.426
0.364
1.80
1.90
2.00
2.50
3.00
0.00
-0.01
-0.02
-0.05
-0.05
176
165
156
122
101
0.315
0.275
0.243
0.145
0.097
4.00
5.00
6.00
7.00
8.00
-0.03
-0.01
-0.01
0.00
75.1
59.8
49.7
42.5
37.2
0.053
0.034
0.023
0.017
0.013
0.00
9.00
10.0
0.00
0.00
33.0
29.7
0.010
0.008
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
17
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
8-Pole, 6-Zero
Elliptic, 1.77
High-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.10
0.20
0.30
0.40
0.50
-89.3
-82.1
-90.6
-82.4
-87.8
164
148
131
292
450
0.440
0.459
0.495
0.559
0.671
0.55
0.60
0.70
0.80
0.85
-90.0
-60.2
-32.4
-13.1
-6.28
0.761
0.890
1.37
437
603
563
498
451
2.35
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
2.77
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-2.21
-0.51
-0.03
-0.01
-0.05
401
358
324
277
225
2.66
2.15
1.64
1.04
0.757
1.30
1.40
1.50
1.60
1.70
-0.03
0.01
0.03
0.03
0.03
221
201
185
172
160
0.596
0.486
0.409
0.347
0.299
1.80
1.90
2.00
2.50
3.00
0.02
0.01
0.01
-0.02
-0.02
150
141
133
105
86.9
0.260
0.229
0.203
0.123
0.083
4.00
5.00
6.00
7.00
8.00
-0.02
-0.01
-0.01
-0.01
-0.01
64.7
51.6
42.9
36.8
32.1
0.046
0.029
0.020
0.015
0.011
9.00
10.0
-0.01
0.00
28.6
25.7
0.009
0.007
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
18
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 Fax on Demand: 978/521-5178
8-Pole, 6-Zero
Elliptic, 2.00
High-Pass
Appendix A
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.10
0.20
0.30
0.40
0.50
-110
-105
-114
-110
-107
168
156
323
309
654
0.338
0.348
0.367
0.397
0.445
-40
-60
-80
0.55
0.60
0.70
0.80
0.85
-78.6
-64.6
-44.1
-26.7
-18.2
646
637
615
586
565
0.480
0.524
0.669
1.001
1.401
-100
-120
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.90
0.95
1.00
1.10
1.20
-9.46
533
478
419
352
308
2.315
3.604
2.681
1.416
1.018
-2.16
-0.046
-0.038
-0.001
1.30
1.40
1.50
1.60
1.70
-0.032
-0.046
-0.034
-0.016
-0.004
277
252
231
214
200
0.773
0.618
0.514
0.436
0.376
1.80
1.90
2.00
2.50
3.00
0.000
-0.003
-0.010
-0.042
-0.045
187
176
166
131
108
0.328
0.288
0.255
0.153
0.103
4.00
5.00
6.00
7.00
8.00
-0.028
-0.015
-0.008
-0.005
-0.003
80.6
64.2
53.4
45.7
40.0
0.057
0.036
0.025
0.018
0.014
9.00
10.0
-0.002
-0.001
35.5
31.9
0.011
0.009
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
19
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
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