Introduction; Specification - TTI TG420 Manual Del Usuario

The TG420 is a programmable 20MHz Sweep/Function Generator with waveforms of sine,
triangle, squarewave and DC from a variable amplitude 50Ω output. A TTL/CMOS auxiliary
output is also provided.
The frequency range is 0.2Hz to 20MHz in 8 overlapping decade ranges with vernier adjustment
by rotary control. The set frequency is always displayed with 5-digit resolution in the top line of
the backlit 16 x 2 LCD; the lower line of the display shows the current editable parameter.
The generator output level is 20V pk-pk maximum from a 50Ω source and can be set over a 20dB
range with the rotary control; further attenuation steps of 20dB and 40dB can be selected to give
a total attenuation of up to 60dB.
Internal lin or log sweep is provided together with an input for external sweep or external AM and
FM. Symmetry control is also provided, permitting ramp and pulse waveforms to be produced.
Up to 30 complete instrument settings can be stored in non-volatile memory and all parameters
can be remotely controlled via the standard RS232 interface. The optional PC420 Windows
software provides an easy means of using the remote control capability and has the facility for
creating and downloading complete set-ups and sequences of set-ups from a PC.
Specifications apply at 18º - 28ºC after one hour warm-up, at maximum output into 50Ω.
FREQUENCY
Frequency Range:
Vernier Range:
Vernier Resolution:
Vernier Accuracy:
Frequency Locking:
WAVEFORMS
Waveform specifications apply for the top decade of each frequency range.
Sine
Distortion:
Triangle
Linearity:
Squarewave
Rise and Fall Times:
DC
Range:
Symmetry
Symmetry Range:
Setting Resolution:
Accuracy:
Additional Frequency Error:
2
0.2Hz to 20MHz in 8 overlapping decade ranges with fine
adjustment by vernier rotary control.
10:1 on each range.
5 digits.
Typically ± 5% of setting ± 10 digits.
In Lock mode the Vernier Accuracy is typically ± 0.05% of setting
±2 digits (20kHz to 20MHz ranges only).
Typically <2% on 2kHz, 20kHz and 200kHz ranges.
Typically <99% on 2kHz, 20kHz and 200kHz ranges.
<25ns
±10V from 50Ω
15:85 to 85:15 up to 1MHz
40:60 to 60:40 up to 20MHz
1% steps
± 1 step to 1MHz
<2% to 1MHz, <5% to 20MHz.

Introduction

Specification