Victor VC2003 User Manual

1
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIRECT
DIRECT
DIRECT
DIRECT
COMPOSITE
COMPOSITE
COMPOSITE
COMPOSITE
FUNCTION
FUNCTION
FUNCTION
FUNCTION
GENERATOR
GENERATOR
GENERATOR
GENERATOR
OPERATION
OPERATION
OPERATION
OPERATION
MANUAL
MANUAL
MANUAL
MANUAL
1.
1.
1.
1.
GENERAL
GENERAL
GENERAL
GENERAL
The instrument is a DDS digital direct composite function generator. It is cored by CPU, employs many large scale integrated circuits, it has the following features:
(1) High precise for frequency, high stability.
(2) Purity waveform, small distortion.
(3) Non-transition process, fast frequency change-over time ： can be stable instant
(4) Non-limitation on ranges ： unnecessary to changes ranges, frequency covering factor can be 10
8.
(5) Sweeping characteristics ： many kinds of sweeping modes are selectable and can pause randomly, LED will display the current frequency value; can sweep meticulously o n
narrow band; can set initial frequency, terminal frequency, sweeping steps and time interval.
(6) Modulation characteristics ： it has amplitude modulation function, the modulation signal can be generated by either inner signal source or outer input, the depth is adjusted
and will not be effected by carrier wave frequency and output amplitude.
(7) Convenient keyboard operation.
(8) Stability and reliability.
2.
2.
2.
2.
TECHNICAL
TECHNICAL
TECHNICAL
TECHNICAL
DATA
DATA
DATA
DATA
AND
AND
AND
AND
SPECIFICATON
SPECIFICATON
SPECIFICATON
SPECIFICATON
2-1.
2-1.
2-1.
2-1.
WAVEFORM
WAVEFORM
WAVEFORM
WAVEFORM
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
sine-wave, TTL level square wave
waveform amplitude resolution: 10bit
sine wave harmonic distortion: -40 dBc （ frequency ＜ 1M Hz ） , -30 dBc （ frequency ≥ 1M Hz ）
sine wave THD ： ＜ 1% (high resistance, 1KHz)
TTL level square wave rise time: ≤ 20ns
Square wave overshoot: ≤ 5%
2-2.
2-2.
2-2.
2-2.
FREQUENCY
FREQUENCY
FREQUENCY
FREQUENCY
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
frequency range: 1Hz —— 3MHz
resolution: less than 1MHz : 0.01Hz ； 1MHz and more than 1MHz: 0.1Hz
frequency tolerance: ≤ ± （ 5 × 10
－
5
＋ 30Hz+1d ）
frequency stability: ≤± 50ppm （－ 40 ℃—— ＋ 85 ℃ ） （ use the low temperature drift crystal oscillator with P LL phase-lock circuit ） . Custom-made can be done if frequency
stability requires to be ± 20ppm or less.
2-3.
2-3.
2-3.
2-3.
AMPLITUDE
AMPLITUDE
AMPLITUDE
AMPLITUDE
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
amplitude range: 10mV
p-p
—— 16V
p-p
（ high resistance ） ， 5mV
p-p
—— 8V
p-p
（ 50 Ω ）
display: 3 digit s
amplitude error: ≤ ± (5%+100 mV
p-p
) （ high resistance, 1KHz, 1 — 16V
p-p
）
amplitude stability: ≤± 5% （ 1hr, high resistance, 1KHz,16V
p-p
）
flatness: ≤ ± 0.5dB （ ≤ 100KHz ） , ≤± 0.8dB （ 100KHz — 1MHz ） , ≤± 2dB （ 1MHz — 2MHz ） , ≤ ± 3dB （ 2MHz — 3MHz ） , （ less than 1Hz, the frequency amplitude i s unstab le ）
output impedance: 50 Ω （ ± 10% ）
TTL level output characteristic ： low level: ＜ 0.3V ； high level: ＞ 4.2V （ high resistance ）
2-4.
2-4.
2-4.
2-4.
DRIFT
DRIFT
DRIFT
DRIFT
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
drift range: 0V —— ± 6.4V （ high resistance ） ， 0V —— ± 3.2V （ 50 Ω ）
resolution: 50mV （ high resistance ）
drift error: ≤ ± （ 5%+100mV ） （ 1hr, high resistance, 1KHz, 10V
p-p
）
2-5.
2-5.
2-5.
2-5.
MODULATION
MODULATION
MODULATION
MODULATION
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
CHARACTERISTIC:
amplitude modulation: AM
modulate waveform ： （ interior amplitude modulation ） sine wave: 400Hz ± 10%, 1000Hz ± 10% 2 ranges
modulation depth ： 1% —— 100%
modulation source ： inner modulation source ， outer modulation source
outer modulation characteristic ： input impedance ： 600 Ω
input level ： the modulation depth is 50% at 0dB
input frequency response ： 100Hz —— 100KHz （ ± 3dB ）

Victor VC2003 Specifications

General

Brand	Victor
Model	VC2003
Category	Portable Generator
Language	English

Summary

General Overview of the Function Generator

Technical Data and Specifications

Waveform Characteristics

Details waveform types, distortion, rise time, and overshoot characteristics.

Frequency Characteristics

Covers frequency range, resolution, tolerance, and stability.

Amplitude Characteristics

Defines amplitude range, error, stability, flatness, and output impedance.

Drift Characteristics

Specifies drift range, resolution, error, and time.

Modulation Characteristics

Details AM modulation, depth, source, and input characteristics.

Sweep and Display Specifications

Sweep Characteristics

Explains frequency sweep modes and characteristics.

Display Information

Lists the indicators shown on the 8-digit LED display.

Power Source Requirements

Specifies voltage and frequency requirements for the power source.

Ambient Conditions

Defines operating temperature and humidity ranges.

Physical Specifications

Provides the physical dimensions and weight of the instrument.

Panel Description and Operation

Displaying Area Details

Details the 8 LED indicators and 8 LED displays on the panel.

Function Key Area Layout

Lists the function keys on the instrument panel.

Number Key Area and Units

Details the number keys, decimal point, backspace, and unit keys.

Terminal Functionality

Explains the function of external terminals like EXT, TTL, and Sine output.

Rear Panel Components

Identifies power switch, voltage switcher, and fuse box on the rear panel.

Operational Instructions

Start-Up Procedure

Covers power connection, switch-on, and preheating recommendations.

Data Input Methods

Explains methods for digital input and data modification using keys.

Frequency Setting Guide

Details how to set the output frequency using specific keys and units.

Amplitude and DC Offset Setup

Describes setting output amplitude and DC offset, including load considerations.

Mode Selection Overview

Outlines how to select output modes like Common, Modulation, and Sweep.

Common Mode Operation

Defines the default mode with frequency and amplitude settings.

Inner Modulation Configuration

Explains setting AM modulation depth, source, and modulation signal frequency.

Outer Modulation Configuration

Covers using external signals for modulation and their depth relationship.

Linearity Frequency Sweep Setup

Details setting initial, terminal, and spacing frequencies for linear sweep.

Logarithm Frequency Sweep Setup

Explains setting parameters for logarithm sweep mode.

Frequency Sweep Operation Explanation

Clarifies key operations during frequency sweep modes.

Important Notes and Warnings

Functional Block Diagram and Final Notes

Functional Block Diagram

Shows the internal functional blocks and data flow of the generator.

Disclaimer and Contact Information

Contains disclaimers regarding specifications, errors, and improper operation.