Agilent Technologies 33320A-B-G-H Arbitrary Waveform Generator

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Eiginleikar:

• Broadband Frequency Coverage (dc4 GHz, dc-18 GHz, and dc-26.5 GHz)
• Optional Calibration Data dB, 70 dB. go dB, 110 dB dB steps. 10 dB steps
• High Accuracy of dB reading to 18 GHz Typical)
• High Repeatability 10.01 dB to 18.0 GHz Typical)
• Manual and Programmable Models
• Environmentally Rugged; Small Size; Low Long Life

Upplýsingar um vöru

Almenn lýsing

This family of HP step attenuators represents the state-of-the­art in attenuator design. These attenuators offer an unprece­dented combination ofbroadband accuracy, high repeatability, small size, rapid switching, and low cost. They are particularly well suited for controlling the signal levels of microwave sweepers, spectrum analyzers, network analyzers, receivers, and automatic and special test equipment. These attenuators have proven extremely reliable inside Hewlett-Packard’s mic­rowave instrumentation as well as a wide variety of other applications. For bench use applications, models HP 8494, HP 8495 and HP 8496 are available in manual and program­mable versions. Bench models include a base and the man­ual model has an indicator dial.
Each attenuator is composed of three or four attenuation sections connected in cascade. Each section (Figure 1) consists of a precision thin-film attenuation card, a lossless thru line, and a ganged pair of contacts that switch the attenuation card in or out. This combination results in high accuracy and exceptional repeatability.

Hár endurtekningarhæfni
Excellent repeatability (typically 0.01 dB to 18 GHz and 0.05 dB to 26.5 GHz for up to five million cycles) has been achieved by employing edge-line design for the transmission line.1 This construction requires that only the center con­ductor be switched, thus eliminating the high friction con­tacts characteristic of turret type attenuators. The resulting benefits are long life and highly repeatable performance.

Áreiðanlegur árangur
Each unit is tested over its operating frequency range by a computer-controlled HP Automatic Network Analyzer to insure consistent accurate measurements, traceable to the National Institute of Standards and Technology. This mea­surement system brings standards lab accuracy to production testing and assures that each attenuator meets specifications over the entire frequency range. Calibration data can be provided on request.

Broadband Accuracy and Low SWR
High accuracy (typical ±2% of the dB reading to 18 GHz and ±4% of the dB reading to 26.5 GHz) and low SWR are achieved through the use of miniature thin-film attenuation cards composed of high stability tantalum resistive film on a sapphire substrate. This thin-film technique permits the con­struction of circuits which are truly distributed and without stray reactances, even at very high microwave frequencies. These precision cards and the cascaded section design provide high step-to-step accuracy, typically better than ± 1 dB to 18 GHz and ±2 dB to 26.5 GHz for a 10-dB step and ±0.2 dB for a 1-dB step.
Figures 2 and 3 show the typical performance of the step attenuators as tested on a computer-controlled HP Automatic Network Analyzer. This typical data represents a mean sam­pling of current production and is given to provide useful applications information. Special selections can be made on request.

• 3.5 mm tengi
  The HP 33321D/K and HP 33323K step attenuators use the  3.5 mm connector2 which is compatible with the industry standard SMA but is more rugged and offers improved repeatability over hundreds of connections. Use of this  connection extends the frequency range to 26.5 GHz.
• Environmentally Rugged
  HP 33320 Series Attenuators have undergone a very extensive environmental qualification program and have been tested at the extremes of temperature, shock, vibration, and humidity  and have proven to be extremely reliable. A summary of the  environmental data is given on the specifications page.
  2″A High Perfor mance 3.5 mm Connector to 34 GHz,” Mi crowave Jornal, July 1976.Also,IEEE Transactionon MTI, December 1976, VoiumeMTI-24 Number 12, page 995.
• Lítil stærð
  The small size of these attenuators is an important feature for applications where space is critical. When panel mounted, the manual versions take less than 1.5 square inches of panel area. Since the programmable models are only slightly larger than the manual versions and have the same RF performance, the designer gets more flexibility in providing manual and pro­grammable models of instruments without major redesign.
• Lágmarkskostnaður
  Utilizing state-of-the-art manufacturing processes, including numerically controlled machining, thin-film deposition, and computer controlled testing, this family of attenuators offers a significant technical contribution at a low cost to the user. In addition, OEM quantity discounts are offered.

Programmable Model Information

Positive Latching Solenoids
In the programmable models, solenoids are used to switch the attenuation card of each section into and out of the circuit. Once switched, the solenoids are held in place by strong per­manent magnets able to withstand shocks over 10 G’s. Thus, power can be removed without affecting the status of the attenuator sections.

Hraðvirk skipti
Use of miniature solenoids has resulted in more than a two-to­one improvement in switching speed over previous models. The 20 millisecond maximum switching time includes contact set­tling and is a significant advantage for automatic testing, and other applications where speed is of prime importance.

Low Heat Dissipation
A unique design feature of these attenuators is that the solenoids automatically disconnect after switching. Current is drawn for approximately eight milliseconds during a switching operation, after which internal relay contacts open the solenoid circuit, and current is not drawn again until another switching operation is performed. This automatic turnoff feature greatly simplifies the driver circuit design (Figure 5) and minimizes the amount of heat dissipated by the solenoids, often a critical concern. For example, in an application with 60 switchings a minute, the average power dissipated is less than 0.03 watts.

HP-IB Attenuator/Switch Driver

Employing programmable HP step attenuators and switches in an automatic test system becomes an easy task when the HP 11713A Attenuator/Switch Driver is specified into the system.

• The HP 11713A has all of the necessary features to provide HP-IB control of up to two programmable attenuators of the HP 33320 Series, and concurrently up to two electromechanical switches (e.g., HP 8671B or HP 33311 series).
• The HP 11713A includes an integral power supply (with short circuit protection) that can simultaneously provide 125 milliamps at 24 volts to all contacts for control of the attenuators and switches, so no external power supply is needed. Each HP 11713A is provided with two (2) plug-in drive cables for the programmable attenuators to simplify connection to the driver.
• The HP 11713A also features convenient front panel keys so the user can manually activate the individual attenuation sec­tions and switches when in the “local” mode. Switching time for the drivers is less than 10 milliseconds.

Optional Calibration Data for HP 33320 Series Step Attenuators

Use of calibration data (i.e. accurate, recorded data of a device’s characteristics) has always been an effective means of reducing measurement uncertainty at RF and microwave frequencies. Now, however, use of calibration data is experiencing rapid growth in test systems because inexpensive calibration data is · available. Another key reason for this trend is that automated test systems can easily store and manipulate extensive amounts of the calibration data.

There are three primary uses for optional test data:

1. Aukin nákvæmni
   Step attenuators have long been used as reference standards in the measurement of gain, attenuation, and receiver sensitiv­ity. Since the accuracy specifications include margins for fre­quency response and unit-to-unit variations, calibration data can improve overall measurement uncertainty. In many cases, this improves the reference attenuator’s accuracy by 60 percent or more.
2. Test System Verification
   Calibration data has an important use in ensuring that a test system is operating properly. As a final step in the verification procedures of the automatic systems by Hewlett-Packard to test microwave devices, a previously calibrated attenuator is tested and compared to the stored data. If the differences are within the system measurement uncertainty, proper operation of the test system is ensured.
3. Implementing Calibration Data in a Computer Program To integrate the calibration data into an automated mea­surement program, first set up variables in the computr pro­gram that will be loaded with the data. Then measurements can be made at the calibration frequencies after which the calibra­tion data is recalled and used to adjust the measured data or calculate measurement uncertainties.
   Data is available on HP 33320 Series Step Attenuators as Option 890 and is generated from measurements made by an Automatic Network Analyzer. Option 890 provides a tabu­lated list of attenuation and SWRs for each step at 14 to 72 frequencies (see Table 1). Measurements through 50 dB are directly traceable to NIST standards and feature very low measurement uncertainties (see Tables 2 and 3). Step attenu­ator data provided from 60 dB to 110 dB is generated by combining the measured data of the individual attenuation sections (e.g. adding the data for the 10, 20, and 40 dB sections to get the 70 dB step data). Option 890 data is available when the attenuators are first purchased and recali­brations are available.

Table 1. HP 33320 Series Calibration Frequencies

Fyrirmynd	Calibration Frequencies
33320A/G 3332lA/G 33322A/G	200 to 4000 MHz every 200 MHz (20 frequencies)
35320B/H 3332lB/H 33322B/H	200 to l 8000 MHz every 200 MHz (90 frequencies)
3332lD/K 33323 þúsund	1500 to 26500 MHz every 250 MHz (101 frequencies)

Table 2. HP 33320 Series SWR Data Uncertainty

Tegund tengis	Tíðni Svið (GHz)	SWR Data Uncertainty
		Measured SWR I.Oto 135	Measured SWR 135 til 1.86
FemaleSMA	de to 8.0	±0.054	±0.088
	8.0 til 12.4	±0.077	±0.132
	12.4 til 18.0	±0.122	±0.206
Female APC-3.5	18 til 26.5	±0.045	±0.067

Table 3. HP 33320 Series Attenuation Data Uncertainties

Attenu- ation (db)	Attenuation Data Uncertainty (dB)
	0.1 til 2.0GHz	2 til 6 GHz	6 til 12.4 GHz	12.4 til 18.0GHz	18.0 til 26.5 GHz
0/0-4	±0.07	±0.06	±0.06	±0.11	±0.3
5-8	±0.07	±0.o7	±0.07	±0.11	–
10/9-11	±0.08	±0.07	±0.07	±0.12	±0.2
20	±0.09	±0.08	±0.08	±0.13	±0.2
30	±0.12	±0.11	±0.11	±0.15	±0.24
40	±0.15	±0.14	±0.14	±0.21	±0.28
50	±0.23	±0.23	±0.23	±0.34	±0.54
60	±0.50*	±0.48*	±0.90*	±0.90*	±1.00*
70	±0.50*	±0.50*	±0.90*	±0.90*	±1.75*
80	±0.50*	±0.50*	±0.90*	±0.90*	±1.80*
90	±0.50*	±0.50*	±0.90*	±0.90*	±1.95*
100	±0.90*	±0.90*	±1.80*	±1.80*	–
110	±0.90*	±0.90*	±1.80*	±1.80*	–
*For step attenuator data from 60 to 110 dB the uncertainties noted represent 99.7% probability values.

Upplýsingar um uppsetningu

Attenuation Section Switching
Figure 4 shows one attenuator section schematic. Each atte­nuation section utilizes one solenoid with dual coil windings, one coil to switch in the attenuation card ( e.g. 10 dB) and one coil to switch in the thru line (0 dB).
With a positive voltage applied to the common pin, the state (attenuation card or O dB) of a particular section is determined by connecting its attenuation card pin or thru line pin to a negative voltage or ground. Table 4 defines the pin assignments and the pin configurations are shown on page 8.
As a section is switched, the internal contacts of the activated coil open, thus shutting off current flow. At the same time, the internal contacts for the other coil close so that it can be activated when desired. Figure 5 shows a section that has been switched to the attenuation card position (note the closed thru line coil contact). The switching is “break-before-make” type, thus a momentary interruption of the RF signal occurs at switching.
Although all sections can be switched simultaneously, the attenuator driver must not allow both pins of the same section (e.g. Section 1, pins 5 and 6) to be activated concurrently, or else that section would cycle rapidly. All terminals are “float­ing”, so bipolar or unipolar power supplies can be used.

Typical Driver Circuit
Figure 5 shows an economical TTL compatible driver cir­cuit for a single attenuation section utilizing an IC relay driver and an inverter. A TTL “HI” input to the driver switches in the attenuation card, while a “LO” will activate the thru line for that section. This provides a complementary driver for the section which assures that only one solenoid of the pair is activated at a time. Diode protection is required to protect the IC from the solenoid voltage flyback.
Switch position can be indicated remotely by utilizing the open and closed states of the internal coil contacts. The shaded areas of Figure 5 display two indicator circuits, one providing a

Table 4. Solenoid pin and color code assignment guide.

kafla	kafla I		kafla 2		kafla 3		4. lið
segulloka Coil’	Í gegnum Lína	Atten. Card	Í gegnum Lína	Atten. Kort	Í gegnum Lína	Atten. Card	Í gegnum Lína	Atten. Card
Cable Wire Color Code’	PUR	JÁL	BLK	GRN	ORN	BLU	BRN	WHT
Tengistengi Pinna Number’	5	6	7	8	9	JO	11	12
Opt.008/016 Ribbon Wire Color Code	BLK	WHT	BLU	ORN	VIO	RAUTT	GRN	JÁL
Flat Pack Plug Pinna Númer3	13	2	II	5	3	9	4	10
33320G/H(lldB)	0 dB	I dB	0dB	2dB	0dB	4dB	0dB	4 dB
33321G/H(70dB)	0dB	JO dB	0dB	20 dB	0 dB	40dB	•	•
33321 þúsund 4 (70 dB)	OdB	JO dB	0dB	20 dB	0 dB	20dB	0dB	20 dB
33323 þúsund 4 (90dB)	0dB	JO dB	0dB	20 dB	0dB	30dB	0dB	30 dB
33322G/H(110dB)	OdB	10 dB	0dB	20dB	0 dB	40dB	0dB	40dB
*Ónotað  Five-foot cable and mating plug assembly provided. Pin I (red wire) is common for all coils. Pins 2, 3 and 4 are not used on all models. See connector pin diagram in Figure 7, page 8. Pin 6 (brown wire) is common for all coils. Pins 1, 7, 8, 12, and 14 are not used. see page 6 for recommended switching sequence for the 3332 l /23K. Also see Figure 8, page 8.

TTL output and one that activates an LED. These circuits will output a TTL ‘HI’ (LED lamp ‘ON’) if the attenuation card is in the RF circuit, and will output a TTL ‘LO’ (LED) lamp ‘OFF’) if the thru line is in the RF circuit. Since current is drawn through the coil for these circuits, inadvertent switching is prevented by limiting the current to 5 mA.
Hewlett-Packard assumes no responsibility for the use of any circuits described herein and makes no representation or war­ranties, express or implied, that such circuits are free from patent infringement.

Tæknilýsing

Specifications describe the instrument’s warranted performance. Supplemental characteristics are intended to provide information useful in applying the instrument by giving typical, but non-warranted, performance parameters. These are denoted as “typical”, “nominal”, or “approximate”.

Rafmagns
Attenuation Accuracy (t dB Referenced from 0-dB Setting):
To insure warranted specifications for the HP 33321K, and HP 33323K, the following combination of sections  is recommended.

HP Models 33320A/B/G/H (11 dB max*)
Tíðnisvið	Attenuator Setting (dB)
	I	2	3	4	5	6	7	8	9	10	II
dc-4 GHz (A,G only)	0.2	0.2	0.3	0.3	0.3	0.3	0.4	0.4	0.4	0.4	0.5
dc-12.4 GHz (B,H only)	0.3	0.3	0.4	0.4	0.5	0.5	0.6	0.6	0.6	0.6	0.7
12.4-18.0 GHz (B,H only)	0.7	0.7	0.7	0.7	0.7	0.8	0.8	0.8	0.8	0.9	0.9
*Typical step-to-step accuracy is± 0.2 dB to 18 GHz

HP Model Numbers	33321A/B/G/H (70 dB max*)
	33322A/B/G/H (110 dB max*)
Tíðnisvið	Attenuator Setting (dB)
	10	20	30	40	50	60	70	80	90	100	110
dc-4/GHz (A,Gonly)	0.2	0.4	0.5	0.7	0.8	1.0	1.2	1.3	1.5	1.6	1.8
dc-12.4 GHz (B,H only)	0.5	0.7	0.9	1.2	1.5	1.8	2.1	2.4	2.7	3.0	3.3
12.4-18.0 GHz (B,H only)	0.6	0.8	1.2	1.6	2.0	2.4	2.8	3.2	3.6	4.0	4.4
*Typical step-to-step accuracy is± 1 dB to 18 GHz.

HP Model Numbers	333210/K (70dB max*)
	33323K (90 dB max*)
Tíðnisvið	Attenuation Setting (dB)
	10	20	30	40	50	60	70	80	90
dc-6.0 GHz	0.3	0.5	0.6	0.7	0.8	1.0	1.1	1.1	1.2
6.0-12.4 GHz	0.4	0.5	0.7	0.9	1.0	1.3	1.5	1.6	1.7
12.4-18.0 GHz	0.5	0.6	0.8	1.1	1.2	1.4	1.7	1.8	2.1
18.0-26.5 GHz	0.7	0.8	1.0	1.5	1.6	1.9	2.3	2.5	2.8
*Typical step-to-step accuracy is± 0.6 dB to 18 GHz +  0.9 to 2.65 GHz.

• Attenuation Temperature Coefficient: Less than 0.0001 dB/dB/° C.
• Power Sensitivity: 0.001 dB/watt.
• RF Input Power (max.): 1 watt average, 100 watts peak (10 μs pulse width).
• Life, Minimum: 5 million cycles per section.1
• Repeatability: 0.01 dB, typical to 18 GHz, 0.05 dB, typical to 26.5 GHz.
• Insertion Loss (0 dB position, f is frequency in GHz):
• HP 33320A/B/G/H: (0.6 + 0.09 x f) dB
• HP 33321A/B/G/H: (0.4 + 0.07 x f) dB
• HP 33321D/K/: (0.4 + 0.09 x f)dB
• HP 33322A/B/G/H: (0.6 + 0.09 x f)dB
• HP 33323K: (0.4 + 0.09 x f) dB

A cycle is defined as switching from the thru-line position to the attenuation card and back to the thru-line position or vice versa.

Environmental Capabilities*

• Temperature, Operating: —-20° to +75°C.
• Temperature, Non-Operating: —55°C to +85°C.
• Altitude, Operating: 15,000 ft.
• Altitude, Non-operating: 50,000 ft.
• Humidity: Cycling 5 days, 40°C at 95% RH with condensation.
• Shock, Operating: 10 g’s, 6 ms, on six sides, three blows.
• Shock, Non-operating: 500 g’s, 1.8 ms, in 6 directions.
• Vibration, Operating: 5 g’s, 34-2000 Hz (for all models except the HP 33321D/K); 0.015 inches DA, 5-55 Hz (for the 33321D/K only).
• EMC: radiated interference is within the requirements of MIL-STD-461 method REO2, VDE 0871 and CISPR Publication IL.
• Additional environmental data provided on request.

Vélrænn

• Mounting Position: Any.

Nettóþyngd:

• HP 33323 A/B: 198 grams (7 oz); G/H: 227 grams
• HP 33323) (8 oz); D: 255 grams (9 02); K: 284 grams (10 02).
• HP 33320 A/B: 255 grams (9 oz); G/H 284 grams
• HP 33322 } (10 oz).
• RF Connectors: SMA female for HP 33320/1/2
• A/B/G/H. APC-3.5 female (SMA compatible) for HP 33321D/K & HP 33323K.
• Programmable Models (G, H, K)
• Switching Speed: Max. 20 msec including settling time.

segulspjöld	Coil Voltage	Switching Current*	Nominal Coil Impedance
Standard (G, H,	24V	125 mA	1900
and K models)	(20- 30V)	(@24V)	(65 mh)
Option 011 (G & H models plus	5V	300mA	170
HP33323K)	(4 – 7V)	(@5V)	(5.5 mh)
*Current per section; appoximately 8 msec duration before internal contacts open the coil circuit.

Accessory provided (except Option 008 & 016)
Solenoid drive plug on 5-foot cable included with program­ mable models. (Replacement plug and cable assembly avail­able as HP Part Number 8120-2178.)

Step Attenuator Selection Guide
To order, basic model number and suffix letter must be specified. The basic model number defines the step size and maximum attenuation value. HP 33320 (1-dB step, 11-dB max.) HP 33321 (10-dB step, 70-dB max.), HP 33322 (10-dB step, 110-dB max.), HP 33323 (10-dB step, 90 dB max.). The suffix letter denotes frequency range and switching mode (manual or programmable); A, B, and D denote de- 4 GHz, de- 18 GHz, and dc-26.5 GHz respectively for the manual models; G, H, and K denote de – 4 GHz, de -18 GHz, and de – 26.5 GHz respectively for the programmable models. Standard coils are 24 volt, Option O 11 specifies 5 volt.

Attenu- ation Step Size	Attenu- ation Range	Tíðni Svið	Skipt um ham (Manual or Programmable)	HP Basic Model Number
1 dB	0-11 dB	dc-4 GHz	MAÐUR.	33320A
			PROG.	33320G
		de-18 GHz	MAÐUR.	33320B
			PROG.	33320H
10 dB	0-70 dB	de-4 GHz	MAÐUR.	33321A
			PROG.	33321G
		de-18 GHz	MAÐUR.	333218
			PROG.	33321H
		af- 26.5 GHz	MAÐUR.	333210
			PROG.	33321 þúsund
	0-90 dB	af- 26.5 GHz	PROG.	33323 þúsund
	0-110 dB	dc-4 GHz	MAÐUR.	33322A
			PROG.	33322G
		dc-18 GHz	MAÐUR.	33322B
			PROG.	33322H

Upplýsingar um pöntun

• Specify basic model number and suffix, per the table above.
• Option 008: 8 inch (20.3 cm) ribbon cable with 14 pin
• flat pack male connector. (See back page.)
• Option 016: 16 inch (40.6 cm) ribbon cable with 14 pin
• flat pack male connector (see back page.)
• Option 011: 5 volt solenoid operation.
• Option 890: Calibration data:
• 4 GHz models: 20 frequencies
• 18 GHz models: 90 frequencies
• 26.5 GHz models: 101 frequencies

Mál

Manual Models

Programmable Models
For more information. cal! your local HP sales office listed 1n the telephone directory white pages. Ask for the Electronic Instruments Department. Or write to Hewlett-Packard: U.S.A. P.O. Box 1030;. Palo Alto, CA 94303-0890. Europe – P.O. Box 999, 1180 AZ Amstelveen, the Netherlands. Canada – 6877 Goreway Drive, Mississauga, L4V 1 M8, Ontario. Japan – Yokogawa-Hewlett-Packard Ltd., 3-29-21, Takaido-Higashi, Suginami-ku, Tokyo 168. Elsewhere in the world, write to Hewlett-Packard Intercontinental. 3495 Deer Creek Road, Palo Alto, CA 94303-0890.
5959-7857 Prentað í Bandaríkjunum

Hewlett-Packard to Agilent Technologies Transition
This manual may contain references to HP or Hewlett-Packard. Please note that  Hewlett-Packard’s former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. To reduce potential confusion, the only change to product numbers and names has been in the company name prefix: where a product number/name was HP XXXX the current name/number is now Agilent XXXX. For example, model number HP 33323K is now model number Agilent 33323K.

Documentation Warranty

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FUR­THER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AGILENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT­NESS FOR A PARTICULAR PURPOSE. AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN. SHOULD AGILENT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WAR­RANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.

DFARS/Restricted Rights Notice
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non-DOD Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined in FAR 52.227-19(c)(l-2) (June 1987). U.S. Government users will receive no greater than Limited Rights as defined in FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any technical data.

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