RF Signal Generators SG380 Series — DC to 2 GHz, 4 GHz and 6 GHz analog signal generators SG380 Series RF Signal Generators · DC to 2 GHz, 4 GHz or 6 GHz · 1 µHz resolution · AM, FM, ΦM, PM and sweeps · OCXO timebase (std.) · −116 dBc/Hz SSB phase noise (20 kHz offset, f = 1 GHz) · Rubidium timebase (opt.) · Square wave clock outputs (opt.) · Analog I/Q inputs (opt.) · Ethernet, GPIB, and RS-232 · SG382 ... $3,900 (U.S. list) · SG384 ... $4,600 (U.S. list) · SG386 ... $5,900 (U.S. list) Introducing the new SG380 Series RF Signal Generators — finally, high performance, affordable RF sources. The SG380 Series RF Signal Generators use a unique, innovative architecture (Rational Approximation Frequency Synthesis) to deliver ultra-high frequency resolution (1 µHz), excellent phase noise, and versatile modulation capabilities (AM, FM, ΦM, pulse modulation and sweeps) at a fraction of the cost of competing designs. The standard models produce sine waves from DC to 2.025 GHz (SG382), 4.05 GHz (SG384) and 6.075 GHz (SG386). There is an optional frequency doubler (Opt. 02) that extends the frequency range of the SG384 and SG386 to 8.10 GHz. Low-jitter differential clock outputs (Opt. 01) are available, and an external I/Q modulation input (Opt. 03) is also offered. For demanding applications, the SG380 Series can be ordered with a rubidium timebase (Opt. 04). On the Front Panel The SG380 Series Signal Generators have two front-panel outputs with overlapping frequency ranges. A BNC provides outputs from DC to 62.5 MHz with adjustable offsets and amplitudes from 1 mV to 1 Vrms into a 50 Ω load. An N-type output supplies frequencies from 950 kHz to the upper frequency limit of each model, with power from +13 dBm to –110 dBm (1 Vrms to 0.707 µVrms) into a 50 Ω load. Stanford Research Systems phone: (408)744-9040 www.thinkSRS.com

SG380 Series RF Signal Generators The SG380 Signal Generators offer a wide variety of modulation capabilities. Modes include amplitude modulation (AM), frequency modulation (FM), phase modulation (OM), and pulse modulation. There is an internal modulation source as well as an external modulation input. The internal modulation source produces sine, ramp, saw, square, and noise waveforms. An external modulation signal may be applied to the rear-panel modulation input. The internal modulation generator is available as an output on the rear panel. Unlike traditional analog signal generators, the...

SG380 Series RF Signal Generators generator in addition to a signal generator. Transition times are typically 35 ps, and both the offset and amplitude of the clock outputs can be adjusted for compliance with PECL, ECL, RSECL, LVDS, CML, and NIM levels. Optional I/Q inputs (Opt. 03) allow I & Q baseband signals to modulate carriers from 400 MHz to the upper frequency limit of your instrument. This option also allows the I/Q modulator to be driven by an internal noise generator with adjustable bandwidth. Rear-panel outputs allow the noise source to be viewed or used for other purposes. Internal...

SG380 Series RF Signal Generators Polar Plot of 1.000001 GHz Referenced Sample Intvl Tfte polar plot shows the trajectory of a signal in the I/Q plane. An unmodulated carrier at the analyzer's reference frequency (1 GHz in this case) appears as a single dot in the I/Q plane. When the carrier frequency is offset, the single dot moves in a circle about the center of the I/Q plane. The pattern shown occurs when the carrier amplitude is modulated with 100 % depth at a rate of five times the carrier offsetfrequency (creating five lobes). The symmetry of the lobes indicates that there is no residual...

Frequency Setting Frequency ranges Frequency resolution Switching speed Frequency error Frequency stability Frequency range Offset resolution Amplitude resolution Amplitude accuracy Output coupling User load Reverse protection Front-Panel N-Type Output Frequency range Powei output Voltage output Powei resolution Powei accuracy Output coupling Usei load Reveise protection Spectral Purity of the RF Output Referenced to 1 GHz* * Spurs, phase noise and residual FM scale by 6dB/octave to other carrier frequencies Phase Setting on Front-Panel Outputs Phase resolution Standard OCXO Timebase Oscillatoi...

Modulation Waveform Output Output impedance User load External Modulation Input Unmodulated level Modulation bandwidth Modulation distortion Input impedance Input offset Pulse/Blank threshold 0 V input for unmodulated carrier ±1 V input for ± full deviation Amplitude Modulation Modulation source Modulation distortion N-type output Frequency Modulation Frequency deviation Deviation resolution Deviation accuracy Modulation source Modulation distortion Modulation bandwidth Frequency Sweeps (Phase Continuous) Frequency span Sweep ranges Deviation resolution Sweep source Sweep distortion Sweep offset...

On/Off ratio Type-N output Pulse feed-through Purn on/off delay Modulation source Internal or external pulse Carrier frequency range 400MHz to 2.025 GHz (SG382) Front-panel N-type only Modulated output Carrier suppression Modulation bandwidth DC Bias Source (comes with Opt. 02) Voltage range Offset voltage Output resistance Current limit Pine power Dimensions, weight 10/100 Base-F.FCP/IP & DHCP default 4800 to 115,200 baud, RPS/CPS flow One year parts and labor on defects in Square Wave Clock Outputs (Opt. 01) Differential clocks Frequency range Ampl/offset resolution Ampl/offset accuracy Output...