SWEEP OSCILLATORS Synthesized Sweepers Models 8340A, 8341A
- 1 to 4 Hz frequency resolution
- Low spurious and phase noise
- 100 ns pulse width capability (optional on HP 8341A)
- +10 dBm to --110 dBm calibrated output (optional on HP 8341A)
- Complete analog sweeper
- DC to 100 kHz amplitude modulation
ATTERIES
HP 8340A/8341A Synthesized Sweepers
HP 8340A
The HP 8340A and 8341A Synthesized Sweepers deliver the combined high-performance of a synthesizer and a broadband sweep oscillator in one instrument that is completely controllable via the Hewlett-Packard Interface Bus (HP-IB). This efficient combination of performance and versatility is ideal for manual or automatic test systems and in many cases enables the HP 8340A/41A to replace a sweep oscillator, a frequency counter, an RF synthesizer, and a microwave synthesizer.
Synthesizer Precision and Spectral Purity
The synthesized broadband frequency coverage (10 MHz to 26.5 GHz on the HP 8340A and 10 MHz to 20 GHz on the HP 8341A) and the precise 1 to 4 Hz frequency resolution (depending on the frequency band of the HP 8340A or 8341A) are generated by indirect synthesis techniques. These techniques enable the HP 8340A/41A to achieve the same low single-sideband phase-noise performance as the HP 8672A and HP 8673 series of Synthesized Signal Generators. The HP 8340A/41A long-term stability is also outstanding at 1×10-9/day (see specification on following page for more information).
The HP 8340A/41A also feature CW switching times of better than 50 ms (typically <35 ms). Additionally, a "Fast Phase-lock" programming command can be used to reduce typical CW switching times to between 11 and 22 ms (depending on frequency step size and absolute frequency value).
Spectrum Analyzer photo of HP 8340A signal at 22 GHz.
Swept Capability
Analog sweep widths as narrow as 100 Hz or as broad as the full frequency range of the HP 8340A or 8341A permit rapid and the ough testing of any device within their broad frequency ranges. To simplify swept measurements, five frequency markers are provide along with useful marker functions such as marker sweep, marker to center frequency (MKR-CF), and marker difference. Direct compatibility with the HP 8510, 8756A/57A, 8410 and 8755 Network Amalyzers also enhances the HP 8340A/41A's swept capability.
Pulse and AM Modulation
The high performance pulse modulators of the HP 8340A and the HP 8341A Opt 006 offer >80 dB ON/OFF ratio and <25 ns rise and fall times. Pulse amplitudes are leveled for pulse widths as narrowat 100 ns. The HP 8340A/HP 8341A also feature dc-coupled AM modulation with a 3 dB bandwidth of 100 kHz and a minimum depth 90%. Pulse and amplitude modulation can be used simultaneously to simulate antenna scan patterns.
HP 8341A Opt 006 pulse performance at 3 GHz. Pulse width = 200 ns.
sou
HP 8340A AM performance at 22 GHz. AM rate is 50 kHz and depth is 90%.
Inut Power
al on
1.1
Without Power The HP 8340A/41A provide high output power which can be con-failed down to -110 dBm (opt. 001 or 004 on the HP 8341A) with 0.05 Break down to -110 dBm (opt. 001 or 004 on the rir 6341A) with 0.03 Breakution. High power resolution is complemented by outstanding Fourier and flatness. as shown on the following page of specifications acuracy and flatness, as shown on the following page of specifications. The HP 8340A/41A also feature power sweep capability with >20 dB manic range for complete characterization of level-sensitive devices
usbility and Programmability The ENTRY DISPLAYS of the HP 8340A/41A always show the acfunctions and their current values, which can be easily changed via that entry keyboard, the step keys or the knob. This friendly and asive interaction with the user makes the HP 8340A/41A very easy istruments to operate. Complete HP-IB programmability also enables HP 8340A/41A to effectively interact with computers via simple-to-programming codes (for example, a CW frequency of 5 GHz can be programming codes (for example, a CW frequency of 5 GHz can be grammed by: CW 5 GZ). Other HP-IB enhanced features, such as "Fast Phase-lock" command, let users easily and fully exploit the graful canabilities of the HP 83404 /41 A
Network Analyzer Companions
Besides being excellent stand-alone general purpose sources, the HP Waland HP 8341A are also ideal sources for precision microwave net-mit analysis. Examples of this are the HP 8340A/41A with the HP $300 and HP 8756A/57A network analyzers. The HP 8510 vector netanalyzer brings tremendous measurement capability to the microare engineer that was never before available. A significant portion of is capability depends on the stability, signal purity and imee/analyzer interface of the sweeper used. An example of this high micranaryzer interface of the sweeper used. An example of this high manual is shown in Figure 1 where a single device under test was masured seven times with seven completely different HP 8510/8340A Hard seven times with seven completely different fir 6310/0340A to systems. The repeatability (system to system) is remarkable. When the HP 8512A or 8514A 500 MHz to 18 GHz test sets are used with the P 8510, the 10 MHz to 20 GHz HP 8341A is the recommended source and when the HP 8513A or 8515A 45 MHz to 26.5 GHz test sets are and when the HP 8513A or 6515A 45 WITLZ to 20.5 GHz and, the 10 MHz to 26.5 GHz HP 8340A is recommended.
Both the HP 8340A and HP 8341A can also be teamed with the HP 156A and HP 8757A scalar network analyzers for precision scalar analis, for instance, magnitude-only applications where data at accurate instance, in addition to this frequency accuracy, the HP 140A/8341A have a "phase-locked sweep." For sweep widths of n x 5 Hizor less (n = frequency band number), one of the phase-locked loops swept producing synthesizer class frequency accuracy and stability in a minute sweep. As an example, see Figure 2 where an 832 MHz SAW
munuous sweep. As an example, see Figure 2 where an 832 MHz SAW monator is swept over a width of 400 kHz by the HP 8341A with less an 60 Hz of residual FM
The HP 8341 A is particularly well suited for scalar analysis because of nt perf ance for the price. Previously, if greater frequency
accuracy and stability was required of a swept source, the sweeper was combined with a source-locking counter or simply stopped and counted in CW mode. Now with the 10 MHz to 20 GHz HP 8341A, you can obtain the highest quality frequency accuracy, stability, and phase noise along with an analog sweeper. The HP 8341A has all this built into a single easy-to-use instrument at a price comparable to a broadband sweener/source-locking counter combination.
491
The
HP 8340A/8341A Specifications
(see technical data sheet for complete specifications)
HP-IB Interface Functions
The following codes describe the HP-IB electrical capabilities of the HP 8340A/41A using IEEE Std 488-1978 mnemonics: SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C0, C1, C2, C3, C28, E1.
Frequency CW Mode (and Manual Sweep)
Frequency Range: HP 8340A, 10 MHz to 26.5 GHz HP 8341A, 10 MHz to 20.0 GHz
Frequency Resolution
1 Hz, 0.01 to < 7.0 GHz
2 Hz, 7.0 to <13.5 GHz
3 Hz 13 5 to < 20.0 GHz
4 Hz 20.0 to 26.5 GHz (HP 8340A only)
Accuracy: Same as time base Time Base
Internal 10 MHz time base Aging Rate: less than 1 X 10-9/day and 2.5 X 10-7/year after 30 day
Temperature Effect: typically < 1 X 10-SUP10/°C.
Line Voltage Effect: typically < 1 × 10- SUP11/ ± 10% line voltage
Switching time: <50 ms to be within specified frequency resolution
(Fast Phase Lock Mode reduces typical switching time to <20 ms)
Frequency Bands: For bands 0 and 1, the output is derived from the fundamental frequency of the internal 2.3 to 7.0 GHz YIG-tuned oscilfundamental frequency of the internal 2.3 to 7.0 GHz YIG-tuned oscillator (n = 1). For bands 2 (7.0-13.5 GHz), 3 (13.5-20 GHz), and 4 (20.0-26.5 GHz), the output is derived from the 2nd, 3rd, or 4th harmonic of the oscillator (n =2, 3, or 4).
Swept Mode Center Frequency/Sweep Width (△F)
Range: HP 8340A: 10.00005 MHz to 26.49999995 GHz (center fre-quency): 100 Hz to 26.49 GHz (sweep width). HP 8341A: 10.00005 MHz to 19.99999995 GHz (center frequence 1114 10 17.777777777777777777777777777777777
Resolution: approximately 0.1% of sweep width (AE)
Readout Accuracy: (sweep time > 100 ms)
ΔF ≤n × 5 MHz: ±1% of indicated sweep width (ΔF). ±time base
n × 5 MHz <ΔF<n × 100 MHz: +2% of indicated sweep width (Δ) AF >n × 100 MHz: +1% of indicated sweep width (AF), or ±50 MHz. ichever is less.
Where n = harmonic multiplication number (1 to 4). Refer to Frequency Bands description a Start/Stop Frequency - narmonic mu
Range: HP 8340A: 10 MHz to 26.49999999 GHz (Start); 10.0001 MHz to 26.5 GHz (Stop) HP 8341A: 10 MHz to 19.9999999 GHz (Start) (Start) 10.0001 MHz to 20.0 GHz (Stop)
Resolution: same as Center Frequency/Sweep Width.
Readout Accuracy: with respect to sweep out voltage (sweep time > 100 ms): same as Center Frequency/Sweep Width Mode.
Frequency Markers
All 5 markers are independently variable and have the same specifica-
Range: HP 8340A: 10 MHz to 26.5 GHz.
HP 8341A: 10 MHz to 20.0 GHz.
dout Accuracy: same as Center Frequency/Sweep Width.
eadout Accuracy: same as Center Frequency/Sweep width.
cy/Sweep Width.
Swept Frequency Accuracy (of any frequency covered by the sweep): same as Center Frequency/Sweep Width Mode.
and thor anges. To : provided marker to :t compat-
as the full
A and the DALLOW AS AM mod n depth of
006 pulse 3 GH
SWEEP OSCILLATORS Synthesized Sweepers (cont.)
Models 83404 83414
Spectral Purity
Specifications apply to CW mode and all swept modes unless otherwise stated
Sourious Signals (expressed in dB relative to the carrier level (dBc). at ALC level of 0 dBm)
Harmonics (up to 26.5 GHz) of output frequency: <-35 dBc
Subharmonics and Multiples Thereof (up to 26.5 GHz) of output <-25 dBc, 7.0 to<20.0 GHz
<-20 dBc, 20.0 to 26.5 GHz (HP 8340A only)
Non-Harmonically related spurious (CW and Manual Sweep mode only):
| <-50 dBc, | 0.01 to < 2.3 GHz |
|---|---|
| <-70 dBc, | 2.3 to < 7.0 GHz |
| <-64 dBc, | 7.0 to <13.5 GHz |
| <-60 dBc, | 13.5 to <20.0 GHz |
| - 50 JD. |
<-58 dBc, 20.0 to 26.5 GHz (HP 8340A only) HP 8340A Single-Sideband Phase Noise (dBc/1 Hz Noise BW. CW Mode, all power levels)
| Frequency | 0 | fset from Carr | ier | ||
|---|---|---|---|---|---|
| Range (GHz) | 30 Hz | 100 Hz | 1 kHz | 10 kHz | 100 kHz |
|
0.01 to < 2.3
2.3 to < 7.0 7.0 to <13.5 13.5 to <20.0 20.0 to 26.5 |
64
64 58 54 52 |
70
70 64 60 58 |
-78
78 72 -68 66 |
86
86 80 76 74 |
-107
-107 -101 - 97 - 95 |
d Phase Noise (dBc/1 Hz Noise BW. CW Mode, all power levels)
| Franciscom | 0 | fset from Carr | ier | ||
|---|---|---|---|---|---|
| Range (GHz) | 30 Hz | 100 Hz | 1 kHz | 10 kHz | 100 kHz |
| 0.01 to < 2.3 | -67 | -75 | _107 | ||
| 2.3 to < 7.0 | - 1 | -67 | -75 | -83 | _107 |
| 7.0 to <13.5 | - | 61 | -69 | -77 | -101 |
| 13.5 to <20.0 | - 1 | -57 | -65 | _73 |
Typical HP 8340A Phase Noise performance from 2.3 to 7.0 CH-
Typical Residual FM in CW Mode: <n Typical Residual FM in Swent Mode: e. < n × 60 117 rms
ΔF > n × 5 MHz: < n × 25 kHz rms.
ΔF ≤ n × 5 MHz: same as CW Mode.
Where n = harmonic multiplication number (1 to 4). Refer to Fre-quency Bands description above.
RF Output wer Range
HP 8340A Maximum Leveled Power (0°C to +35°C)
| Frequency Range | Specified | Typical |
|---|---|---|
| 0.01 to < 2.3 GHz | +10.0 dBm | +12 dBm |
| 2.3 to < 7.0 GHz | +12.0 dBm | +16 dBm |
| 7.0 to <13.5 GHz | +10.0 d8m | +12 dBm |
| 13.5 to <20.0 GHz | + 9.0 dBm | +11 dBm |
| 20.0 to <23.0 GHz | + 3.0 dBm | + 5 dBm |
| 23.0 to 26.5 GHz | + 1.0 dBm | + 3 dBm |
HP 8341A Maximum Leveled Power (0°C to +35°C) +10 dBm, 0.01 to 20.0 GHz
Minimum Settable Power: HP 8340A, -110 GHz; HP 8341A, - 20 dBm 0.01 to 20.0 GHz -110 dBm, 0.01
RF Off: When the RF kev is turned off, the POWER dBm divis will read OFF and a 0 dBm signal out of the RF connector typically be attenuated to a level of <-100 dBm. Additional attenuation of the signal may be achieved by using the internal stepation
F
Δ
M
Output Power Resolution
ENTRY DISPLAY: 0.05 dB
POWER dBm Display: 0.1 dB HP 8340A Output Power Accuracy (0°C to +55°C)
| Output Level | F | requency Range (GHz) | |
|---|---|---|---|
| Range | 0.01 to <2.3 | 2.3 to <20 | 20 to 26.5 |
|
+20 to +10 dBm
+10 to -9.95 dBm -10 to -19.95 dBm -20 to -49.95 dBm -20 to -49.95 dBm -80 to -100 dBm 100 to 10 dBm (trainelly) |
+0.9 dB
+1.2 dB +1.5 dB +1.8 dB +2.1 dB |
± i.8 dB
±1.5 dB ±2.0 dB ±2.3 dB ±2.6 dB ±2.9 dB |
±2.3 d8
±2.0 d8 ±2.5 d8 ±2.8 d8 ÷3.1 d8 ±3.4 d8 |
HP 8341A Output Power Accuracy
| Output Level | Frequency R | inge (GHz) |
|---|---|---|
| Range | 0.01 to <2.3 | 2.3 to 20 |
| +20 to -10 dBm | ±1.6 d8 | |
| +10 to -10 dBm | ±0.9 dB | ±1.3 d8 |
| -10 to -20 dBm | ±1.7 dB | ±2.1 d8 < |
Accuracy specifications include power level variations with fi and temperature (i.e. flatness, which is given below).
HP 8340A Flatness (Internally leveled)
| Output Level | Frequency Range (GHz) | ||
|---|---|---|---|
| Range | 0.01 to <2.3 | 2.3 to <20 | 20 to 26.5 |
| +20 to +10 dBm | _ | +1.2 dB | ±17 dB |
| +10 to -9.95 dBm | ±0.6 dB | ±1.1 dB | +16 68 |
| -10 to -19.95 dBm | ±0.9 d8 | +1.6 dB | +21 68 |
| -20 to -49.95 dBm | ±1.2 dB | +1.9 dB | +74 8- |
| –50 to –79.95 dBm | ±1.4 dB | ±2.2 dB | ±2.7 🔀 🗧 |
| -80 to -100 dBm | ±1.7 dB | ±2.5 dB | ±3.0 d8 |
| -100 to -110 dBm (typically) | ±1.9 dB | ±3.1 dB | ±3.6 d8 |
HP 8341A Flatness (internally leveled)
| Qutnut Level | Frequency R | ange (GHz) | |
|---|---|---|---|
| Range | 0.01 to <2.3 | 2.3 2.3 10 26 | |
| +20 to +10 dBm | +1.06 | ||
| +10 to -10 dBm | ±0.6 dB | -0.9 68 | |
| -10 to -20 dBm | 10.8 dB | ±1.5 dB | |
Output Level Switching Time: typically <10 ms to be within dB of final value with no attenuator change (interna l leveling on' Stability with Temperature: typically ±0.01 dB/°C. Output Impedance: 50Ω nominal. Source SWR (internal leveling only):
Typically <1.3:1, 0.01 to <2.6 GHz.
Typically <1.6:1, 2.3 to <18.0 GHz.
Typically <2.0:1, 18.0 to 26.5 GHz. (20.0 GHz for HP 8341A)
0 to 40 dB/sweep least 10 dB at any given frequency (at least 20 dB in Intual: At least 10 OB at any given irequire FCOUPLED mode; see Figure 2 below). lution: 0.05 dB/sweep
Power Level: Same as Output Power Accuracy Power Width and Linearity:
ion: 0.05 dB/sweep
sation
ed Range: 0 to 0.4 dB/GHz on: 0.001 dB/GHz
Leveling
TAL allows the HP 8340A/41A to be externally leveled by crystal detectors of positive or negative polarity.
TER allows power meter leveling with any HP power meter. ige: 500 µV(-66 dBV) to 2V (+6 dBV) for XTAL or METER
action of the second state of the second state of the second state of the second state of the second state of the second racy: leveled voltage is shown in ENTRY DISPLAY in dBV. Ac-±0.5 dB, ±0.2 mV
b bandwidth: nominally 30 kHz in XTAL mode, 0.7 Hz in HETER mode.
e nominally 1 MΩ
e Modulation
include a stand of the stand of in the HP 8340A and available as option 006 in the HP 8341A.
t (Ta) and Fall (Ta) Times: <25 ns
m Internally Leveled RF Pulse Width (TRF): ≤100 ns. m Unleveled RF Pulse Width: typically<25 ns.
ion Frequ
References requires. Hz to 5 MHz (when internally leveled) gially dc to 20 MHz in non-leveled operation admum Peak Power: same as CW and swept modes. See RF OUTspecifications
cy of Internally Leveled RF Pulse (V2) (relative to CW lev-
| Frequency Range (GHz) | ||||
|---|---|---|---|---|
| Pulse Width | 0.01 to 0.4 | 0.4 to<2.3 | 2.3 to 26.5* | |
| 100 to<200 ns | _ | +3/0.3 dB | +1.5/-0.3 dB | |
| 200 to<500 ns | - | +1.5/-0.3 dB | ±0.3 dB | |
| 2500 ns | ±0.3 dB | ±0.3 dB | ||
| fo<2 µS (typically) | +3/-0.3 dB | - | ||
| 20<5 µS (typically) | +1.5/-0.3 dB | _ | _ | |
| St S (typically) | Bh £ O i | _ | ||
AUGHz for HP 8341A opt. 006
ing Time: Settling time states the typical amount of time needed einternally leveled RF pulse amplitude to be within 10% of its final after a change in the pulse amplitude has been initiated. In the HP WA/41A, for pulse widths < 10 µs, settling time is the greater of 70 µs the time to generate 7 pulses. For pulse widths s, settling time is divided by the duty cycle. Settling time can be reduced by pressing TAM, which effectively increases the ALC bandwidth. ShiFT AM has the effect of causing some degradation in the pulse envelope as as raising the minimum pulse repetition frequency from 100 Hz to 1
shoot, Ringing (V0R/VP): <15% typically. Width Compression (Tv-TRF): ±5 ns typically. (Time (Tp): 50 ns typically. Deedthrough (VF/VP):
%, 0.01 to <0.4 GHz 0.4 to <2.3 GHz (for output power levels<+8 dBm) (12% 2.3 to 26.5 GHz (20.0 GHz for HP 8341A opt. 006) nds caused by a pulse input when PULSE is OFF: typically
50 dBc with a 30 kHz squarewave input from .01 to 7.0 GHz. the Input: TTL compatible. (Open circuit is TTL high level and m RF on). Damage level +12V, -20V.
Amplitude Modulation
Specifications below apply when the HP 8340A/41A are internally leveled, for waveforms whose envelope peak is at least 1 dB below maxi-
AM Depth: 0-90%. Actual available depth will be greater than this in many cases and is determined by the difference of the maximum leveled power available at frequency of interest and -30 dBm. AM Sensitivity: (at a 1 kHz rate and 30% denth) 100%/V±5%. AM
depth is linearly controlled by varying input level between 0 and ±1V peak. Nominal input impedance is 6000
AM Bandwidth (30% Depth, PULSE off): dc coupled, 3 dB point AM Frequency Response (Flatness) Relative to a 1 kHz Rate at
30% depth (PULSE off): ±0.20 dB, dc to 10 kHz.
cal values are given in Figure 3 below
Incidental of in Peak Radians (Rates ≤10 kHz, 30% Depth): <0.4 typically
lental FM: Incidental AM input impedance: nominally 600 ohms.
Figure 3. Typical HP 8340A AM distortion for various modula-
| Ordering Information | Price |
|---|---|
| HP 8340A Synthesized Sweeper | $69,100 |
| Option 001 Front Panel RF Output Without Attenuator | less $2,000 |
| Option 004 Rear Panel RF Output With Attenuator | add $200 |
| Option 005 Rcar Panel RF Output Without Attenuator | less $1,800 |
| Option 006 Delete Pulse Modulation | less $4,000 |
| Option 007 Relaxed Phase Noise Specifications | less $3,500 |
| Option 910 Extra Operating and Service Manual | add $400 |
| HP 8341A Synthesized Sweeper | $44,000 |
| Option 001 Front Panel RF Output With Attenuator | add $2,000 |
| Option 002 +13 dBm Output Power, 2.3 to 18.6 GHz | add $4,000 |
| Option 004 Rear Panel RF Output With Attenuator | add $2,200 |
| Option 005 Rear Panel RF Output Without Attenuator | add $200 |
| Option 006 Pulse Modulation | add $4,000 |
| Option 007 Improved Phase Noise Specifications | add $3.500 |
| Option 910 Extra Operating and Service Manual | add $400 |
| Common Options | |
| Ontion 806 Rack Mount Slide Kit | add $110 |
| Ontion 850 HP 8410B/C Interface Cable | add $100 |
| Ontion 908 Back Flange Kit | add $35 |
| Option 913 Pack Flange Kit for Instruments With Front | add $40 |
| Handles | 230 010 |
| Ontion 914 Delete Service Manual | Jess $350 |
| 08340-60134 Support Kit | add $650 |
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