Krohn-Hite Corporation 3901 Other
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Model:
3901
Date:
2005
Category:
Group:
Description:
GPIB Programmable Elliptical Filter
Information
The Krohn-Hite Model 3901 programmable, two channel,
high-pass/low-pass elliptical filter/voltage gain Amplifier
is one of a family of programmable filters from Krohn-Hite.
As an elliptical Filter, the Model 3901 has two independent
Filter channels, one low-pass and the other high-pass,
allowing for band-pass operation with atunable cutoff
frequency range from 1Hz to 99kHz and a role-off rate of
115dB/octave.
Each Filter section has aminimum stopband attenuation of
>80dB and apassband ripple oftypically
0.22dB. The 3901 provides either a single-ended or
differential input with a common mode rejection of >60dB.
Input gains up to 40dB in 10dB steps and output gains to
20dB in 10dB steps are also provided. The 3901 will accept
input signals of ±10V peak at 0dB gain and has selectable ac
or dc coupling. The Filter is GPIB bus programmable and is
complimented with non-volatile memory for storage of up to
99 front panel set-ups. Overload detectors are standard and
assist the user in detecting excessive input signals or
incorrect gain settings.
The 3901q is also a programmable voltage gain Amplifier for
applications that require a low-noise Amplifier. The
Amplifier has a bandwidth of 1MHz and gains to 60dB,
selectable in 10dB steps, and a wideband noise <100μν.
Typical applications for the Model 3901 are: distortion
measurements, separating specific bandwidths of information,
enhancing signal-to-noise ratio, low noise pre-amplification
and many more.
Manual type:
User Manual
Pages:
50
Size:
347.01 Kbytes (355337 Bytes)
Language:
english
Revision:
05.16.05
Manual ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
2015 09 06
MD5:
06d092c87aed8b433fe8459fc634f0b2
Downloads:
956
Information
1.0 Section 1
1.1
Introduction ... 1-1
1.2
Specifications ... 1-1
1.2.1
Function ... 1-1
1.2.2 Filter
Mode ... 1-1
1.2.3 Amplifier Mode (Each
Channel) ... 1-2
1.2.4
General ... 1-3
1.2.5
Options ... 1-3
1.3 Shipping to Krohn-Hite for Repair or
Calibration ... 1-3
1.4 Claim for Damage in Shipment to Original
Purchaser ... 1-4
1.5 External
Cleaning ... 1-4
2.0 Section 2
2.1
Introduction ... 2-1
2.2 Turn-On
Procedure ... 2-1
2.3
Self-Test ... 2-1
2.4 Front Panel Controls and
Display ... 2-2
2.4.1 Data Keys and
Display ... 2-2
2.4.2 Parameter and Control
Keys ... 2-2
2.4.3 Channel
Selection ... 2-4
2.4.4 Cutoff
Frequency ... 2-4
2.4.5 Input Gain
(Pre-Filter) ... 2-4
2.4.6 Output Gain
(Post-Filter) ... 2-4
2.4.7 Digit Select/ Increment and
Decrement ... 2-4
2.4.8 Key Click Feature
On/Off ... 2-4
2.5 Rear Panel
Controls ... 2-5
2.5.1
Introduction ... 2-5
2.5.2 BNC Connectors and
Indicators ... 2-5
2.5.2.1 Input
Connectors ... 2-5
2.5.2.2 Output
Connectors ... 2-5
2.5.2.3
Indicators ... 2-5
2.5.3 DC Level Adj (Rear
Panel) ... 2-5
2.5.4
Power ... 2-5
2.5.5 GPIB
Connector ... 2-5
2.6 Filter Operating
Characteristics ... 2-6
2.6.1
Introduction ... 2-6
2.6.2 Amplitude
Response ... 2-6
2.6.3 Low-Pass Phase
Response ... 2-6
2.6.4 High-Pass Phase
Response ... 2-7
2.6.5 Group
Delay ... 2-8
2.6.6 Transient
Response ... 2-8
2.6.7 Impulse
Response ... 2-9
2.6.8 Variable Band-Pass
Operation ... 2-9
2.6.9 Band-Reject
Operation ... 2-10
3.0 Section 3
3.1
Introduction ... 3-1
3.2 Preliminary Programming
Information ... 3-1
3.2.1 GPIB Primary Bus
Address ... 3-1
3.2.2 GPIB Bus Interface Programming
Connector ... 3-2
3.3 ASCII Data
Commands ... 3-3
3.3.1
Format ... 3-3
3.3.2 Types of Data
Commands ... 3-3
3.3.3 Table of ASCII
Commands ... 3-3
3.3.4
Examples ... 3-5
3.3.4.1 Example
1 ... 3-5
3.3.4.2
Example2 ... 3-5
3.3.4.3
Example3 ... 3-5
3.4 IEEE-488 Standard
Commands ... 3-6
3.4.1 Multi-Line
Messages ... 3-6
3.4.2 Polling
Commands ... 3-7
3.4.2.1 Parallel
Polling ... 3-7
3.4.2.2 Service Request And Serial
Polling ... 3-8
3.4.2.3 Serial
Responses ... 3-8
3.4.3 Uniline
Messages ... 3-9
3.5 Talker
Format ... 3-9
3.5.1 Parameter Information
Format ... 3-10
3.5.2 Model Number and Software Version
Format ... 3-10
3.6 Programming
Examples ... 3-10
3.6.1 Example 1 - Microsoft Quick
Basic ... 3-10
3.6.2 Example 2 - Borland Turbo
C ... 3-12
3.6.3 Example 3 - National Instruments
IBIC ... 3-18
4.0 Section 4
4.1
Introduction ... 4-1
4.2 Required Test
Equipment ... 4-1
4.3 Channel 1 -
High-Pass ... 4-1
4.3.1 Pre-Filter. Post-Filter and Unity Gain
Accuracy ... 4-1
4.3.2 Low Bands Ripple
Response ... 4-2
4.3.3 High Band Ripple
Response ... 4-2
4.3.4 Stopband
Attenuation ... 4-3
4.3.4.1
Band1 ... 4-3
4.3.4.2
Band2 ... 4-3
4.3.4.3
Band3 ... 4-3
4.3.4.4
Band4 ... 4-3
4.3.5 Cutoff Frequency
Accuracy ... 4-3
4.3.6 Noise Measurements (2MHz Detector
Bandwidth) ... 4-4
4.4 Channel 2 -
Low-Pass ... 4-4
4.4.1 Pre-Filter, Post-Filter, and Unity Gain
Accuracy ... 4-4
4.4.2 Low Band Ripple
Response ... 4-5
4.4.3 High Band Ripple
Response ... 4-5
4.4.4 Stopband
Attenuation ... 4-5
4.4.4.1
Band1 ... 4-5
4.4.4.2 Band
2 ... 4-6
4.4.4.3 Band
4 ... 4-6
4.4.5 Cutoff Frequency
Accuracy ... 4-6
4.4.6 Noise Measurements (2MHz Detector
Bandwidth) ... 4-6
4.4.7 Passband Gain and Distortion
Tests ... 4-7