Agilent Technologies E8257D, Руководство пользователя

Страница: 17 / 318

Chapter 1 3
Signal Generator Overview
Signal Generator Models and Features
Option UNX
—ultra low phase noise performance
Option UNY —enhanced ultra low phase noise performance
Option UNT —AM, FM, phase modulation, and LF output
• open–loop or closed–loop AM
• dc–synthesized FM to 10 MHz rates; maximum deviation depends on the carrier frequency
• external modulation inputs for AM, FM, and
Φ
M
• simultaneous modulation configurations (except: FM with
Φ
M or Linear AM with
Exponential AM)
• dual function generators that include the following:
— 50–ohm low–frequency output, 0 to 3 Vp, available through the LF output
— selectable waveforms: sine, dual–sine, swept–sine, triangle, positive ramp, negative ramp,
square, uniform noise, Gaussian noise, and dc
— adjustable frequency modulation rates
— selectable triggering in list and step sweep modes: free run (auto), trigger key (single), bus
(remote), and external
Option UNU —pulse modulation
• internal pulse generator
• external modulation inputs
• selectable pulse modes: internal square, internal free–run, internal triggered, internal doublet,
internal gated, and external pulse; internal triggered, internal doublet, and internal gated
require an external trigger source
• adjustable pulse rate
• adjustable pulse period
• adjustable pulse width (150 ns minimum)
• adjustable pulse delay
• selectable external pulse triggering: positive or negative
Option UNW —narrow pulse modulation
• generate narrow pulses across the operational frequency band of the PSG
• includes all the same functionality as Option UNU
E8267D PSG Vector Signal Generator Features
The E8267D PSG provides the same standard functionality as the E8257D PSG, plus the following:
• internal I/Q modulator
• external analog I/Q inputs
• single–ended and differential analog I/Q outputs