7 - Specification
208
TGF4000 Series Quick Start Guide
MODEL:
TGF4042
TGF4082
TGF4162
TGF4242
Outputs
Main Outputs
Output Impedance:
50
Ω
Amplitude
(Sine):
20mVp-p to 20Vp-p
open circuit, 10mVp-p
to 10Vp-p into 50
Ω
≤
50MHz
20mVp-p to 20Vp-p
open circuit, 10mVp-p
to 10Vp-p into 50
Ω
≤
80MHz
20mVp-p to 10Vp-p
open circuit, 10mVp-p
to 5Vp-p into 50
Ω
20mVp-p to 20Vp-p open circuit, 10mVp-p to
10Vp-p into 50
Ω
≤
120MHz
20mVp-p to 10Vp-p open circuit, 10mVp-p to
5Vp-p into 50
Ω
≤
240MHz
20mVp-p to 5Vp-p
open circuit, 10mVp-p
to 2.5Vp-p into 50
Ω
Amplitude
(Pulse):
20mVp-p to 20Vp-p
open circuit, 10mVp-p
to 10Vp-p into 50
Ω
≤ 50MHz
20mVp-p to 20Vp-p open circuit, 10mVp-p to
10Vp-p into 50
Ω
≤
100MHz
20mVp-p to 8Vp-p open circuit, 10mVp-p to 4Vp-
p into 50
Ω
Amplitude can be specified open circuit (hi Z) or into an assumed load of 1
Ω
to 10k
Ω
in Vpp
Amplitude Accuracy:
1.5% ±5mV at 1kHz into 50
Ω
DC Offset Range:
±10V. DC offset plus signal peak limited to ±10V from 50
Ω
.
DC Offset Accuracy:
Typically 1% ±50mV.
Resolution:
3 digits or 1mV for both Amplitude and DC Offset.
Sync Output
Channel 2 can be configured to output Channel 1 sync from its MAIN OUT 2 socket. Sync is a multi-function output which is automatically selected to be
any of the following. Alternatively, the user can choose Sync to always be carrier referenced, to output the currently used trigger signal or turn it off.
Carrier Waveform
Sync:
Sine / Square / Ramp /
Pulse / Arbs
≤ 2
8.125MHz
A square wave with 50% duty cycle at the
waveform frequency.
≤ 80MHz
A sine wave at the waveform frequency.
≤
62.5MHz
A square wave with 50% duty cycle at the
waveform frequency.
≤ 240MHz
A sine wave at the waveform frequency.
Pattern
A positive pulse which is 1 bit rate wide at the beginning of the sequence
Noise
No sync associated with noise.
Modulation Sync:
AM/FM/PM/SUM/
PWM
A square wave with 50% duty cycle referenced to the internal modulation waveform when
modulation source is internal, or a square wave referenced to the carrier waveform when
modulation source is external. No sync is associated with Noise and DC waveforms as the modulation
source.
ASK
A square wave referenced to the trigger rate. The sync is a TTL high when hop amplitude is the
output amplitude and TTL low when carrier amplitude is the output amplitude for positive slope and
vice versa for negative slope.
FSK
A square wave referenced to the trigger rate. The sync is a TTL high when hop frequency is the output
frequency and TTL low when carrier frequency is the output frequency for positive slope and vice
versa for negative slope.
BPSK
A square wave referenced to the trigger rate. The sync is a TTL high when the hop phase is the output
phase and TTL low when carrier phase is the output phase for positive slope and vice versa for
negative slope.
Sweep Sync:
A square wave that is a TTL high from the beginning of the sweep and a TTL low from the midpoint of
the sweep
Burst Sync:
Internal Trigger
A square wave with 50% duty cycle at the trigger frequency.
External Trigger
A square wave with same duty cycle and frequency as the external source.
Manual Trigger
A positive pulse which is approximately 18us wide at the beginning of the event.
Trigger:
Selects the current trigger signal
Output Signal Level:
Logic level nominally 3V
Output Impedance:
50
Ω
