TG550 AIM-TTI INSTRUMENTS, TG550 Datasheet - Page 3

• Manufacturer Part Number: TG550
• Description: FUNCTION GENERATOR FREQUENCY/PULSE, 5MHZ
• Manufacturer: AIM-TTI INSTRUMENTS

Specifications of TG550

• Signal Generator Type: Function
• Bandwidth: 5MHz
• Modulation Type: AM, FM
• Supply Voltage Range: 220V To 240V
• External Height: 88mm
• External Width: 260mm
• External Depth: 235mm
• Lead Free Status / RoHS Status: na

simultaneous display of frequency and level
Dual digital displays for
precision & convenience
The TG550 incorporates a large dual
section digital display.
Unlike competitive products the display
provides a readout not just of frequency,
but of amplitude or offset simultaneously.
Fast and accurate frequency
measurement
Auto-ranging reciprocal measurement
gives 4-digit resolution with rapid update
right down to Hz levels. Accuracy is within
±1 digit (±0.02% at full scale).
To maintain a fast update at sub-Hz
frequencies, the measurement mode is
changed resulting in 3-digit resolution and
reduced accuracy.
However, when compared to the normal
fixed gate-time meters used in other prod-
ucts the TG550 provides both higher accu-
racy and faster display update across the
whole frequency range.
RMS or peak to peak
amplitude display
The output level display can be selected to
show any of three values:
1. The peak to peak amplitude
2. The RMS amplitude
3. The DC offset
RMS values are calculated correctly for
each waveform shape
The decimal point and units are changed
automatically resulting in a display of the
true amplitude regardless of the attenua-
tor setting.
An display indicator warns against illegal
combinations of offset and amplitude
setting that would create clipping in the
output stage.
external frequency counter with seven digit resolution
Advanced internal sweep
The TG550 incorporates a versatile inter-
nal sweep generator capable of providing
linear or logarithmic frequency sweeps.
Start and stop frequencies can be set with
precision using the digital display. Sweep
ranges of over 1000:1 are possible.
The sweep rate is adjustable over a wide
range with good setability between limits
of 20ms and 20s.
A sweep output socket is provided for use
with an oscilloscope or an X-Y recorder. Un-
like many other sweep generators, the
sweep ramp is triangular which gives a su-
perior display when using an oscilloscope to
display swept frequencies.
Amplitude modulation for
extra versatility
The TG550 also incorporates comprehen-
sive AM facilities.
The modulation can be external or internal
(via a 400Hz internal generator) with
modulation levels fully variable between
0% and 100%.
The display of a filter response using an
oscilloscope in XY mode and a TG550 in
swept frequency mode.
External counter with
seven digit resolution
The TG550 has an external counter mode
which utilises the full width of the display to
provide up to seven digits of resolution.
The frequency range is from 5Hz up to
20MHz and the input sensitivity is better
than 50mV rms.
A measurement period of 0.5 or 5 seconds
can be selected. A reciprocal counting
measurement system is used which en-
sures high resolution regardless of input
frequency.
Thus, for example, mains frequency can
be measured to a resolution of better than
1mHz.
Accuracy is better than 10ppm (0.001%)
and an external adjustment point allows
for closed case re-calibration.
Part of an extensive range
TTi offers a wide choice of function gener-
ators both analogue and digital, from a
simple 2MHz model up to a highly sophis-
ticated 40MHz unit.
Contact TTi or visit the website for details
of the full range.