RF Signal Generators [SG380 — Signal generators to 6 GHz]

Tawrat Technology

Website: https://tawrattechnology.com

RF Signal Generators [SG380 — Signal generators to 6 GHz]

Features

Brand	SRS
Origin	USA
Category	Electrical and Electronics, Electronics
Price	Call for Price

Short Description

Model No: SG380

DC to 2 GHz, 4 GHz or 6 GHz
1 µHz resolution
AM, FM, ØM, PM and sweeps
OCXO timebase (std.)
-116 dBc/Hz phase noise (20 kHz offset, f=1 GHz)
GPIB, RS-232 & Ethernet

Specifications

Frequency Setting
Frequency ranges DC to 62.5 MHz (BNC output, all models)
SG382 950 kHz to 2.025 GHz (N-type output)
SG384 950 kHz to 4.05 GHz (N-type output)
SG386 950 kHz to 6.075 GHz (N-type output)
Frequency stability <1×10-11 (1 s Allan variance)
Frequency resolution 1 µHz at any frequency
Switching speed <8 ms (to within 1 ppm)
Frequency error <(10–18 + timebase error) × fC
Front-Panel BNC Output

Frequency range DC to 62.5 MHz
Amplitude 1.00 to 0.001 Vrms
Offset ±1.5 VDC
Offset resolution 5 mV
Max. excursion 1.817 V (amplitude + offset)
Amplitude resolution <1 %
Amplitude accuracy ±5 %
Harmonics <-40 dBc
Spurious <-75 dBc
Output coupling DC, 50 Ω ±2 %
User load 50 Ω
Reverse protection ±5 VDC
Front-Panel N-Type Output

Frequency range
SG382 950 kHz to 2.025 GHz
SG384 950 kHz to 4.05 GHz
SG386 950 kHz to 6.075 GHz
Power output
SG382 +16.5 dBm to -110 dBm
SG384 +16.5 dBm to -110 dBm (<3 GHz)
SG386 +16.5 dBm to -110 dBm (<4 GHz)
Voltage output
SG382 1.5 Vrms to 0.7 µVrms
SG384 1.5 Vrms to 0.7 µVrms (<3 GHz)
SG386 1.5 Vrms to 0.7 µVrms (<4 GHz)
Power resolution 0.01 dBm
Power accuracy ±1 dB (±2 dB above 4 GHz and above +5 dBm or below -100 dBm)
Output coupling AC, 50 Ω
User load 50 Ω
VSWR <1.6
Reverse protection 30 VDC, +25 dBm RF
Spectral Purity of RF Out (referenced to 1 GHz*)

Sub harmonics None (no doubler used below 4 GHz)
Harmonics <-25 dBc (<+7 dBm on N-type output)
Spurious
<10 kHz offset <-65 dBc
>10 kHz offset <-75 dBc
Phase noise (typ.)
10 Hz offset -80 dBc/Hz
1 kHz offset -102 dBc/Hz
20 kHz offset -116 dBc/Hz (SG382 & SG384),
-114 dBc/Hz (SG386)
1 MHz offset -130 dBc/Hz (SG382 & SG384),
-124 dBc/Hz (SG386)
Residual FM (typ.) 1 Hz rms (300 Hz to 3 kHz bandwidth)
Residual AM (typ.) 0.006 % rms (300 Hz to 3 kHz bandwidth)
*Spurs, phase noise and residual FM scale by 6 dB/octave to other carrier frequencies
Phase Setting on Front-Panel Outputs

Max. phase step ±360°
Phase resolution 0.01° (DC to 100 MHz)
0.1° (100 MHz to 1 GHz)
1.0° (1 GHz to 6.075 GHz)
Standard OCXO Timebase

Oscillator type Oven controlled, 3rd OT, SC-cut crystal
Stability (0 to 45° C) <±0.002 ppm
Aging <±0.05 ppm/year
Rubidium Timebase (opt. 04)

Oscillator type Oven controlled, 3rd OT, SC-cut crystal
Physics package Rubidium vapor frequency discriminator
Stability (0 to 45° C) <±0.0001 ppm
Aging <±0.001 ppm/year
Timebase Input

Frequency 10 MHz, ±2 ppm
Amplitude 0.5 to 4 Vpp (-2 dBm to +16 dBm)
Input impedance 50 Ω, AC coupled
Timebase Output

Frequency 10 MHz, sine
Source 50 Ω, DC transformer coupled
Amplitude 1.75 Vpp ±10 % (8.8 ± 1 dBm)
Output Power Error

SG382 power error -30 dBm to +10 dBm, DC to 2 GHz
SG384 power error -30 dBm to +10 dBm, DC to 4 GHz
SG386 power error -30 dBm to +10 dBm, DC to 6 GHz
Internal Modulation Source

Waveforms Sine, ramp, saw, square, pulse, noise
Sine THD -80 dBc (typical at 20 kHz)
Ramp linearity <0.05 % (1 kHz)
Rate 1 µHz to 500 k Hz (fc ≤ 62.5 MHz (SG382 & SG384),
fc ≤ 93.75 MHz (SG386))
1 µHz to 50 k Hz (fc > 62.5 MHz (SG382 & SG384),
fc > 93.75 MHz (SG386))
Rate resolution 1 µHz
Rate error <1:231 + timebase error
Noise function White Gaussian noise (rms = dev/5)
Noise bandwidth 1 µHz < ENBW < 50 kHz
Pulse generator period 1 µs to 10 s
Pulse generator width 100 ns to 9999.9999 ms
Pulse timing resolution 5 ns
Pulse noise function PRBS 25 - 219. Bit period (100 + 5N) ns
Modulation Waveform Output

Output impedance 50 Ω (for reverse termination)
User load Unterminated 50 Ω coax
AM, FM, ØM ±1 V for ± full deviation
Pulse/Blank "Low" = 0 V, "High" = 3.3 VDC
External Modulation Input

Modes AM, FM, ØM, Pulse, Blank
Unmodulated level 0 V input for unmodulated carrier
AM, FM, ØM ±1 V input for ± full deviation
Modulation bandwidth >100 kHz
Modulation distortion <-60 dB
Input impedance 100 kΩ
Input offset <500 µV
Pulse/Blank threshold +1 VDC
Amplitude Modulation

Range 0 to 100 % (decreases above +7 dBm output)
Resolution 0.1 %
Modulation source Internal or external
Modulation distortion <1 % (fc < 62.5 MHz, fm = 1 kHz, BNC output)
<3 % (fc > 62.5 MHz, fm = 1 kHz, N-type output)
Modulation bandwidth >100 kHz
Phase Modulation

Deviation 0 to 360°
Deviation resolution 0.01° to 100 MHz, 0.1° to 1 GHz, 1° above 1 GHz
Deviation accuracy <0.1 % (fc ≤ 62.5 MHz (SG382 & SG384),
fc ≤ 93.75 MHz (SG386))
<3 % (fc > 62.5 MHz (SG382 & SG384),
fc > 93.75 MHz (SG386))
Modulation source Internal or external
Modulation distortion <-60 dB (fc = 100 MHz, fM =1 kHz, ØD =50°)
Modulation bandwidth 500 kHz (fc ≤ 62.5 MHz (SG382 & SG384),
fc ≤ 93.75 MHz (SG386))
100 kHz (fc > 62.5 MHz (SG382 & SG384),
fc > 93.75 MHz (SG386))

Frequency Modulation

Min. freq. deviation 0.1 Hz
Max. freq. deviation SG382 & SG384
Smaller of fc or (64 MHz - fc),(fc < 62.5 MHz)
1 MHz, (62.5 MHz < fc ≤ 126.5625 MHz)
2 MHz, (126.5625 MHz < fc ≤ 253.1250)
4 MHz, (253.1250 MHz < fc ≤ 506.25 MHz)
8 MHz, (506.25 MHz < fc ≤ 1.0125 GHz)
16 MHz, (1.0125 GHz < fc ≤ 2.025 GHz)
32 MHz, (2.025 GHz < fc ≤ 4.050 GHz (SG384))
SG386
Smaller of fc or (96 MHz - fc), (fc < 93.75 MHz)
1 MHz, (93.75 MHz < fc ≤ 189.84375 MHz)
2 MHz, (189.84375 MHz < fc ≤ 379.6875 MHz)
4 MHz, (379.6875 MHz < fc ≤ 759.375 MHz
8 MHz, (759.375 MHz < fc ≤ 1.51875 GHz)
16 MHz, (1.51875 GHz < fc ≤ 3.0375 GHz)
32 MHz, (3.0375 GHz < fc ≤ 6.075 GHz (SG384))
Deviation resolution 0.1 Hz
Deviation accuracy <0.1 % (fc ≤ 62.5 MHz (SG382 & SG384),
fc ≤ 93.75 MHz (SG386))
<3 % (fc > 62.5 MHz (SG382 & SG384),
fc > 93.75 MHz (SG386))
Modulation source Internal or external
Modulation distortion <-60 dB (fc = 100 MHz,
fM = 1 kHz, fD = 1 kHz)
Ext FM carrier offset <1:1,000 of deviation
Modulation bandwidth 500 kHz (fc ≤ 62.5 MHz (SG382 & SG384),
fc ≤ 93.75 MHz (SG386))
100 kHz (fc > 62.5 MHz (SG382 & SG384),
fc > 93.75 MHz (SG386))
Frequency Sweeps (phase continuous)

Frequency span 10 Hz to entire sweep range
Sweep ranges SG382 & SG384
DC to 64 MHz
59.375 to 128.125 MHz
118.75 to 256.25 MHz
237.5 to 512.5 MHz
475 to 1025 MHz
950 to 2050 MHz
1900 to 4100 MHz (SG384)
SG386
DC to 96 MHz
89.0625 MHz to 192.188 MHz
178.125 MHz to 384.375 MHz
356.25 MHz to 768.75 MHz
712.5 MHz to 1537.5 MHz
1425 MHz to 3075 MHz
2850 MHz to 6150 MHz
Deviation resolution 0.1 Hz
Sweep source Internal or external
Sweep distortion <0.1 Hz + deviation/1,000
Sweep offset <1:1,000 of deviation
Sweep function Triangle, ramp or sine sweeps up to 120 Hz
Pulse/Blank Modulation

Pulse mode Logic "high" turns RF "on"
Blank mode Logic "high" turns RF "off"
On/Off ratio
BNC output 70 dB
Type-N output 57 dB (fc < 1 GHz)
40 dB (1 GHz ≤ fc< 4 GHz)
35 dB (fc ≥ 4 GHz)
Pulse feed-through 10 % of carrier for 20 ns at turn-on (typ.)
Turn on/off delay 60 ns
RF rise/fall time 20 ns
Modulation source Internal or external pulse
External I/Q Modulation (opt. 03)

Carrier frequency range 400 MHz to 2.025 GHz (SG382)
400 MHz to 4.05 GHz (SG384)
400 MHz to 6.075 GHz (SG386)
Modulated output Front-panel N-type only
I/Q inputs 50 Ω, ±0.5 V
I or Q input offset <500 µV
I/Q full scale (I2 + Q2)1/2 = 0.5 V
Carrier suppression >40 dBc (up to 4 GHz)
Modulation bandwidth 200 MHz (-3 dB)
Square Wave Clock Outputs (opt. 01)

Differential clocks Rear-panel SMAs drive 50 Ω loads
Frequency range DC to 4.05 GHz
Transition time <35 ps (20 % to 80 %)
Jitter
(fc > 62.5 MHz) 300 fs rms (typical, 1 kHz to 5 MHz BW at 1 GHz)
(fc ≤ 62.5 MHz) <10-4 U.I. (1 kHz to 5 MHz or fc/2 BW)
Amplitude 0.4 to 1 Vpp
Offset ±2 VDC
Ampl & Offs resolution 5 mV
Ampl & Offs accuracy ±5 %
Output coupling DC, 50 Ω ±2 %
Compliance ECL, PECL, RSECL, CML, NIM & LVDS
Frequency Doubler Output (opt. 02)

Output Rear-panel SMA
Frequency range 4.05 GHz to 8.10 GHz (SG384)
6.075 GHz to 8.10 GHz (SG386)
RF amplitude -10 dBm to +13 dBm (4.05 GHz to 7 GHz)
-10 dBm to +7 dBm (7 GHz to 8.10 GHz)
+13 to +16.5 dBm (spec. not guaranteed)
Sub harmonic (fc/2) <-25 dBc (fC < 6.5 GHz)
<-12 dBc (fC < 8.1 GHz)
Mixing products (3fc/2) <-20 dBc
Harmonics (n x fc) <-25 dBc
Spurious (8 GHz) <-55 dBc (>10 kHz offset)
Phase noise (8 GHz) -98 dBc/Hz at 20 kHz offset (typ.)
Amplitude resolution 0.01 dBm
Amplitude accuracy ±1 dB (4.05 GHz to 6.5 GHz)
±2 dB (6.5 GHz to 8.1 GHz)
Modulation modes FM, ØM, Sweeps
Output coupling AC, 50 Ω
Reverse protection 30 VDC, +25 dBm RF
DC Bias Source (comes with opt. 02)

Output Rear-panel SMA
Voltage range ±10 V
Offset voltage <20 mV
DC accuracy ±0.2 %
DC resolution 5 mV
Output resistance 50 Ω
Current limit 20 mA
Computer Interfaces

Ethernet (LAN) 10/100 Base-T. TCP/IP & DHCP default
GPIB IEEE-488.2
RS-232 4800 to 115,200 baud, RTS/CTS flow line
General

Line power <90 W, 90 to 264 VAC, 47 to 63 Hz with PFC
Dimensions 8.5" × 3.5" × 13" (WHL)
Weight 10 lbs.
Warranty One year parts and labor on defects in materials & workmanship

Description

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, ØM, 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).