Aim-TTI TGR2050 Series, Instruction Manual

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11 - Digital modulation (Option UO1)
Modulation and Sync outputs
39 TGR2050 Series Instruction Manual
FSK, GFSK, GMSK or HMSK
When selected as the modulation type, the options will be Off , Binary Data or Filt.
data . , for more details on filtered data, see ‘Filtering’. To activate the modulation
output, select the Mod. Out parameter window, select the required output format,
and touch OK .
3FSK or 4FSK
When selected as the modulation type, the options will be Off , Binary Data , Filt.
Data or Encoded Data .
When activated, the modulation source will be available at the MOD IN/OUT
connection on the rear panel.
The output modulation signal amplitude is fixed at 1Vpp for Filtered and Encoded
data and 3.3Vpp for Binary data.
Sync output
From the SYNC OUT connection on the rear panel, a 3.3V logic level signal can be
received in a number of different formats. The options are
Off, Start, Bitrate
or
Bitrate/2 .
Selecting Start will output a signal that goes high for a one-bit period at the start of
the pattern.
Selecting
Bitrate will output a signal that is a square waveform with 50% duty cycle
at the user defined bit rate.
Selecting
Bitrate/2 will output a signal that is a square waveform with 50% duty
cycle at half the user defined bit rate.
To activate the sync output, select the
Sync Out parameter window, select the
required output format and touch OK.
Modulating
Bit Pattern
Encoded
Bit Pattern
Filtered
Bit Pattern
Binary Data Filtered Data
Internal
Modulation
Generator
Encoding
Block
Filter Block
Deviation
Depth
Modulating
Bit Pattern
Encoded
Bit Pattern
Filtered
Bit Pattern
Binary Data Encoded Data
Filtered Data
Internal
Modulation
Generator
Encoding
Block
Filter Block
Deviation
Depth