SG390 Series – Vector signal generators to 6 GHz

Technical Specifications

Frequency Setting
Frequency ranges: DC to 62.5 MHz (BNC output, all models)
SG392 950 kHz to 2.025 GHz (N-type output)
SG394 950 kHz to 4.05 GHz (N-type output)
SG396 950 kHz to 6.075 GHz (N-type output)
Frequency stability: <1?10-11 (1 s Allan variance)
Frequency resolution: 1 ?Hz 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 ? ?2 %
User load: 50 ?
Reverse protection: ?5 VDC

Front-Panel N-Type Output
Frequency range:
SG392 950 kHz to 2.025 GHz
SG394 950 kHz to 4.05 GHz
SG396 950 kHz to 6.075 GHz
Power output:
SG392 +16.5 dBm to -110 dBm
SG394 +16.5 dBm to -110 dBm (<3 GHz)
SG396 +16.5 dBm to -110 dBm (<4 GHz)
Voltage output:
SG392 1.5 Vrms to 0.7 ?Vrms
SG394 1.5 Vrms to 0.7 ?Vrms (<3 GHz)
SG396 1.5 Vrms to 0.7 ?Vrms (<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 ?
User load: 50 ?
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 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 (SG392 & SG394), -114 dBc/Hz (SG396)
1 MHz offset -130 dBc/Hz (SG392 & SG394), -124 dBc/Hz (SG396)
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): Aging: Oscillator type: Oven controlled, 3rd OT, SC-cut crystal
Physics package: Rubidium vapor frequency discriminator
Stability (0 to 45? C): Aging: Frequency: 10 MHz, ?2 ppm
Amplitude: 0.5 to 4 Vpp (-2 dBm to +16 dBm)
Input impedance: 50 ?, AC coupled

Timebase Output
Frequency: 10 MHz, sine
Source: 50 ?, DC transformer coupled
Amplitude: 1.75 Vpp ?10 % (8.8 ? 1 dBm)

Output Power Error
SG392 power error: -30 dBm to +10 dBm, DC to 2 GHz
SG394 power error: -30 dBm to +10 dBm, DC to 4 GHz
SG396 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: 62.5 MHz (SG392 & SG394),
fc > 93.75 MHz (SG396))
Rate resolution: 1 ?Hz
Rate error: <1: 231 + timebase error
Noise function: White Gaussian noise (rms = dev/5)
Noise bandwidth: 1 ?Hz < ENBW < 50 kHz
Pulse generator period: 1 ?s 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 ? (for reverse termination)
User load: Unterminated 50 ? coax
AM, FM, ?M: ?1 V for ? full deviation
Pulse/Blank: “”Low”” = 0 V, “”High”” = 3.3 VDC
External Modulation Input
Modes: AM, FM, ?M, Pulse, Blank
Unmodulated level: 0 V input for unmodulated carrier
AM, FM, ?M: ?1 V input for ? full deviation
Modulation bandwidth: >100 kHz
Modulation distortion: <-60 dB
Input impedance: 100 k?
Input offset: <500 ?V
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) 62.5 MHz, fm = 1 kHz, N-type output) Modulation bandwidth: >100 kHz

Frequency Modulation
Min. freq. deviation: 0.1 Hz
Max. freq. deviation: SG392 & SG394
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 (SG394))
SG396
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 (SG394))
Deviation resolution: 0.1 Hz
Deviation accuracy: <0.1 % (fc ? 62.5 MHz (SG392 & SG394), fc ? 93.75 MHz (SG396)) 62.5 MHz (SG392 & SG394), fc > 93.75 MHz (SG396))
Modulation source: Internal or external
Modulation distortion: <-60 dB (fc = 100 MHz, fM = 1 kHz, fD = 1 kHz) Ext FM carrier offset: 62.5 MHz (SG392 & SG394), fc > 93.75 MHz (SG396))
Frequency Sweeps (Phase Continuous)
Frequency span: 10 Hz to entire sweep range
Sweep ranges: SG392 & SG394

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 (SG394))
SG396
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

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 (SG392 & SG394), fc ? 93.75 MHz (SG396)) 62.5 MHz (SG392 & SG394), fc > 93.75 MHz (SG396))
Modulation source: Internal or external
Modulation distortion: 62.5 MHz (SG392 & SG394), fc > 93.75 MHz (SG396))

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
Computer Interfaces (all are standard)
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

 

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