HP-3048A_option_K22_dual_RF_amplifier 电路图.pdf

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1、 HP Archive This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! On-line curator: John Miles, KE5FX RadioFans.CN 收音机爱 好者资料库 m 3048A Option K22 ErXjTrtr, 03048-92032 PACKARD page , Qf 21 CERTIFICATION Hewlett-Packard Company (HP) certifies that this

2、 product met its published specifications at the time of shipment from the factory. HP further certifies that its calibration measurements are traceable to the United States National Bureau of Standards, to the extent allowed by the Bureaus calibration facility, and to the calibration facilities of

3、other International Standards Organization members. WARRANTY This HP instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, HP will, at its option, either repair or replace products which prove to be def

4、ective. For warranty service or repair, this product must be returned to a service facility designated by HP. Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products retu

5、rned to HP from another country. HP warrants that its software and firmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument. HP does not warrant that the operation of the instrument, or software, or firmware will be uni

6、nterrupted or error free. LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the pr

7、oduct, or improper site preparation or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. HP SHALL NO

8、T BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT OR ANY OTHER LEGAL THEORY. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. RadioFans.CN 收音机爱 好者资料库 K hot HEWL

9、ETT HM PACKARD 3048A Option K22 03048-92032 Page 2 of 21 O SECTION I. GENERAL INFORMATION 1-1. INTRODUCTION This manual contains information required to install, operate, and service the Hewlett-Packard Model 3048A Option K22 Dual RF Amplifier, an optional accessory for the HP 3048A Phase Noise Meas

10、urement System. The Dual RF Amplifier Operating and Service Manual has five sections. The subjects addressed are: SECTION I GENERAL INFORMATION SECTION II OPERATION SECTION III PERFORMANCE TESTS SECTION IV REPLACEABLE PARTS SECTION V SERVICE 1-2. SPECIFICATIONS Instrument specifications are listed i

11、n table 1-1. These specifications are the performance standards or limits against which the instrument may be tested. Table 1-1. Specifications Characteristics MAXIMUM INPUT POWER GAIN NOISE FIGURE NOISE FLOOR * Offset from Carrier (Hz) .01 1.0 1U.0 100.0 1.0k 10.0k to 10M 10.0M to 40M Performance L

12、imits +10 dBm 9 dB +/-1.5 dB c Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. RadioFans.CN 收音机爱 好者资料库 m uicuwi P T T 3048A Option K22 03048-92032 PACKARD Page 3 of 21 1-3. DESCRIPTION The HP Model 3048A Option K22 Dual RF Amp

13、lifier is an optional accessory to the HP 3048A Phase Noise Measurement System. It contains two RF amplifiers and an on-board +15V regulator. The RF amplifiers have a gain of 9 dB +/-1.5 dB with a maximum output power of +15 dBm typical. The inputs and outputs of the two amplifiers are accessed by f

14、our SMA connectors on the front cover. A +19V to +25V DC power supply is needed at the POWER input. The +15V regulator regulates the DC supply down to +15V, which is used to power the two amplifiers. 1-4. INITIAL INSPECTION Inspect the shipping container. If the container and/or packing material is

15、damaged, it should be kept until the contents of the shipment have been checked mechanically and electrically. If there is mechanical damage or if the instrument does not pass the performance tests, notify the nearest Hewlett-Packard office. Keep the damaged shipping materials (if any) for inspectio

16、n by the carrier and a Hewlett-Packard representative. 1-5. ACCESSORIES The accessories supplied with the HP 3048A Option K22 are listed below: Delay Line 03048-62018 Adapter-Coax Rgt-Ang SMAf-SMAm 1250-1249 Adapter-Coax Rgt-Ang SMAm-SMAm 1250-1397 Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane

17、Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. tVJ HEWLETT 3048A Option K22 03048-92032 PACKARD p a g e 4 Q f 21 SECTION II. OPERATION 2-1. CONNECTIONS The HP 3048A Option K22 requires a +19V to +25V DC supply at the banana connectors on the front cover. The +15V regulator on

18、 the pc board provides excellent line rejection. Because of this the +19V to +25V DC supply does not need to be completely noise free. Any regulated DC supply within the required voltage range is sufficient. The DC POWER input is reverse voltage protected to 100V reverse voltage at the DC POWER inpu

19、t. NOTE Due to the filter in the +15V regulator, when power is first applied to the HP 3048A Option K22, it will draw approximately 90 mA and then drift up to 160 mA in 10 to 20 seconds. The input signal to the amplifier can be in the frequency range of 5 MHz to 1500 MHz. The amplifier is specified

20、in the frequency range of 50 MHz to 1500 MHz with an input level between +5 dBm and +10 dBm. The input level can have up to a +/-10V DC bias. The maximum output level is +15 dBm +/-1 dB. 2-2. APPLICATIONS The HP 3048A Option K22 amplifier is recommended for applications requiring medium gain (8 dB t

21、o 16 dB) with high dynamic range. If a larger gain is needed, a HP 8447A or similar pre-amp with the necessary gain is recommended. Several amplifiers can be cascaded together with attenuators between each amplifier. This will provide isolation between the input and output while maintaining the high

22、 dynamic range. An application for cascading several of the HP 3048A Option K22 with 6 dB pads between each amplifier is to stop an oscillator from injection locking to another oscillator during a phase noise measurement. Figures 2-1, 2-2, and 2-3 show three ways to configure the HP 3048A Option K22

23、 amplifiers with different input levels. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. Whp HEWLETT WLKM PACKARD 3048A Option K22 03048-92032 Page 5 of 21 +15 dBm to - +20 dBm HP 3048A Option K22 Figure 2-1. ) +11 dBm to +16

24、dBm HP 3048A Option K22 Figure 2-2. .tfP.8A.Qjtton_K22 HP 3048A Option K22 ) Figure 2-3. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. m HEWLETT 3048A Option K22 .JT,-.,-. 03048-92032 PACKARD page 6 of 2 SECTION III. PERFORM

25、ANCE TESTS 3-1. INTRODUCTION The procedures in this section test the instruments electrical performance using the specifications of table 1-1 as performance standards. All tests are performed without accessing the interior of the instrument. NOTE For greatest accuracy, allow the test equipment to wa

26、rm up at least one-half hour. 3-2. PERFORMANCE TEST RESULTS Results of the performance tests may be hard copied to a printer for future reference. The results, recorded at incoming inspection, can be used for comparison in periodic maintenance, troubleshooting, and after repairs. 3-3. CALIBRATION CY

27、CLE This instrument requires periodic verification of performance. Depending on the use and environmental conditions, the instrument should be checked using the following performance tests at least once every year. 3-4. PERFORMANCE TESTING ( No abbreviation of the performance testing is recommended.

28、 Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. ThatHEWLETT VHM PACKARD 3048A Option K22 03048-92032 Page 7 of 21 PERFORMANCE TEST 1 GAIN AND NOISE FIGURE TEST DESCRIPTION In this test, a HP 8970A/B is used to measure the gai

29、n and noise figure of the HP 3048A Option K22. The HP 8970A/B uses a HP 346B as a noise source. First, the HP 8970A/B must be calibrated by_connecting_t.he noise source directly to the input of the HP 8970A/B and calibrating the HP 8970A/B from 10 MHz to 1500 MHz. One of the amplifiers is then inser

30、ted between the HP 346B and the input to the HP 8970A/B. The gain and noise figure for each frequency is then noted and compared to the specifications. EQUIPMENT NOISE FIGURE METER HP 8970A/B NOISE SOURCE HP 346B POWER SUPPLY HP 6205B PROCEDURE 1. Connect the equipment up as shown in figure 3-1. HP

31、8970A/B NOISE SOURCE DRIVE OUTPUT Q INPUT Q HP 346B Figure 3-1. Gain/Noise Figure Cal Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. TtiBtHEWLETT mLHM PACKARD 3048A Option K22 03048-92032 Page 8 of 21 2. Press the PRESET key

32、on the HP 8970A/B. 3. Set up the START and STOP frequencies on the HP 8970A/B by pressing the following keys: START FREQ 1 0 ENTER STOP FREQ 15 0 0 ENTER 4. Increase the smoothing to 16 by pressing the INCREASE key three times. A 16 should appear in the left display. 5. Press the NOISE FIGURE AND GA

33、IN key. 6. Press the CALIBRATE key. 7. When the HP 8970A/B finishes its calibration routine connect the equipment up as shown in figure 3-2. ( HP 8970A/B NOISE SOURCE DRIVE OUTPUT Q - HP 346B INPUT Q HP 3048A Opt. K22 + O O Q Q 6 6 IN OUT IN OUTj POWER SUPPLY + 9 9 Figure 3-2. Gain/Noise Figure Meas

34、urement 8. Press the following keys on the HP 8970A/B: FREQUENCY 1 0 ENTER 9. Note the gain displayed on the HP 8970A/B (middle display) and record it in table 3-1. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. Whp% HEWLETT

35、XLHM PACKARD 3048A Option K22 03048-92032 Page 9 of 21 10. For each frequency listed in table 3-1, enter the frequency (in MHz) and press ENTER on the HP 8970A/B. Note the gain (middle display) and noise figure (right display) of the HP 3048A Option K22 amplifier at that frequency. Record these resu

36、lts in table 3-1. 11. Connect the HP 8970A/B to the left amplifier of the HP 3048A Option K22 and repeat steps 8 thru 10. Frequency (MHz) Left Amp 10 50 100 250 500 750 1000 1250 1500 Right Amp 10 50 100 250 500 750 1000 1250 1500 Table : Gain (dB) 1-1. GAIN AND Lower Limit (dB) 7.5 7.5 7.5 7.5 7.5

37、7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 NOISE FIGURE F Upper Limit (dB) 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 tESULTS Noise Figure (dB) * * Upper Limit (dB) Typ. * 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 * 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 Copyri

38、ght 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. tfa MFWLPTT 3048A Option K22 PACKARD 03048-92032 PACKARD p 1Q o f 2 1 PERFORMANCE TEST 2 NOISE FLOOR TEST DESCRIPTION This test measures the noise of the HP 3048A Option K22 amplifiers

39、 apar from the phase noise contribution of the external reference sources. Thus, this test measures the noise floor of the amplifiers. The output of the HP 11848A internal 350-500 MHz oscillator is split. One path is attenuated 6 dB and applied to the HP 3048A Option K22 amplifier. The output of the

40、 amplifier is connected to one of the inputs of the HP 3048A 5 MHz to 1.6 GHz Phase Detector. The other path is delayed one-quarter wavelength to establish phase quadrature of the split signal at 400 MHz. Fine adjustment of quadrature is made by tuning the oscillator until the dc output of the detec

41、tor is 0V. The phase noise of the oscillator cancels itself out because the phase fluctuations of the split signals are correlated. EQUIPMENT PHASE NOISE MEASUREMENT SYSTEM HP 3048A POWER SUPPLY HP 6205B 6 dB PAD HP 8493A OPT 006 DELAY LINE 03048-62018 ADAPTER-COAX RGT-ANG SMAf-SMAm 1250-1249 ADAPTE

42、R-COAX RGT-ANG SMAm-SMAm 1250-1397 NOISE FLOOR TEST FIXTURE 03048-61032 PROCEDURE 1. Connect the equipment as shown in figure 3-3. NOTE Remove the semi-rigid cable and the Type N(m) to SMA(m) adapter from the HP 11848 Noise Floor Test Fixture, HP part number 03048-61032. Assemble the HP 3048A Option

43、 K22 noise floor fixture as shown in figure 3-3 with the parts listed in the equipment list above and the Type N(m) to SMA(m) adapter removed from the Noise Floor Test Fixture. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. m

44、 HEWLETT PACKARD 3048A Option K22 03048-92032 Page 11 of 21 POWER SUPPLY HP 3561A POWER SPUTTEH HP 1184 WPUT Q O O bo 0 o 6 o o- RF SPECTRUM ANALYZER INPUT e- Figure 3-3. Noise Floor Measurement 2. From the Main Level menu of the HP 3048A software, select the Define Msrmt softkey and set up the meas

45、urement given in table 2-1. NOTE Refer to page 1-14 of the HP 3048A Operating Manual to guide the user in operation of this part of the software. Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. m HEWLETT PACKARD 3048A Option K

46、22 03048-92032 Page 12 of 21 Tab Step 1 2 3 4 5 * 40. E Syst e 3-2. Measurement Definition for HP Parameters MEASUREMENT TYPE FREQUENCY RANGE Start Frequency Stop Frequency Averages INSTRUMENT PARAMETERS Carrier Frequency Det./Discr. Input Freq. Internal Phase Detector CALIBRATION TECHNIQUE Phase De

47、tector Constant SOURCE CONTROL bUUHOt 350-500 MHZ SYSTEM CONTROL Phase Shifter ) U DEFINE GRAPH Title Minimum X Maximum X Minimum Y Maximum Y Graph Type +6 Hz should be entered if a RF spectr em. 3048A Optior K22 Noise Floor Test Data Phase Noise without Using a PPL .01 Hz 100.E+3 Hz (40.E+6)* 4 385

48、.E+6 Hz 400.E+6 Hz 5 MHz to 1600 MHz Use the Current Detector Constant enter 600.E-6 V/rad r 1 DUT h HP 11848A : 1 i DUT rP) y 1 xL jy _r HP 3048A OPTION K22 NOISE FLOOR MEASUREMENT AT 400 MHz .01 Hz 100.E+3 Hz (40.E+6 Hz)* -200 -30 Single Sideband Phase Noise (dBc/Hz) u r n analyzer is connected to the Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A. That HEWLETT ml.HM PACKARD 3048A Option K22 03048-92032 Page 13 of 21 3. After all the measurement definitions have been entered, return to the