Anritsu wiltron 560 schematic

SERIES 560-7XXX AND 5400-71XXX RF DETECTORS OPERATION AND MAINTENANCE MANUAL

1.INTRODUCTION

This manual provides descriptions and specifications for ANRITSU Series 560-7XXX and 5400-71XXX RF Detectors (Figure 1). It also contains procedures for field replacement of detector diodes in the model 5400-71B50 and 5400-71B75 RF detectors and most of the Series 560-7XXX RF detectors.

2.GENERAL DESCRIPTION

The ANRITSU Series 560-7XXX and 5400-71XXX

RF Detectors use zero-biased Schottky diodes and have a measurement range of –55 dBm to +16 dBm.

The detectors are used with the Model 56100A and 562 Scalar Network Analyzers and with Series

541XXA, 540XXA, and 54XXA Scalar Measurement Systems for making coaxial transmission loss or gain and power measurements. The detectors are also used with the Site Master and Cable Mate Series Personal SWR/RL and Fault Location Testers for making power measurements.

NOTE: ANRITSU was formerly known as WILTRON

Figure 1. Typical Series 560-7XXX and 5400-71XXX

RF Detectors

3.PERFORMANCE SPECIFICATIONS

Performance specifications for the Series 560-7XXX and 5400-71XXX RF Detectors are listed in Table 1 on page 2.

4.PRECAUTIONS FOR USE OF RF DETECTORS

ANRITSU RF Detectors are high-quality, precision laboratory instruments and should receive the same care and respect afforded such instruments. Follow the precautions listed below when handling or connecting these devices. Complying with these precautions will guarantee longer component life and less equipment downtime due to connector or device failure. Also, such compliance will ensure that RF Detector failures are not due to misuse or abuse—two failure modes not covered under the ANRITSU warranty.

a.Beware of Destructive Pin Depth of Mating Connectors. Based on RF components returned for repair, destructive pin depth of mating connectors is the major cause of failure in the field. When an RF component connector is mated with a connector having a destructive pin depth, damage will usually occur to the RF component connector. A destructive pin depth is one that is too long in respect ot the reference plane of the connector (Figure 2, page 3).

The center pin of a precision RF component connector has a precision tolerance measured in mils (1/1000 inch). The mating connectors of various RF components may not be precision types. Consequently, the center pins of these devices may not have the proper depth. The pin depth of DUT connectors should be measured to assure compatibility before attempting to mate them with RF Detector connectors. An ANRITSU Pin Depth Gauge (Figure 3, page 3), or equivalent, can be used for this purpose.

490 JARVIS DRIVE l MORGAN HILL, CA 95037-2809	P/N: 10100-00035
	REVISION : C
NOTE: ANRITSU Company was formerly known as WILTRON Company.	PRINTED: MARCH 2000

COPYRIGHT 1997 ANRITSU CO.

Table 1. 560-7XXX and 5400-71XXX RF Detectors Performance Specifications

Model		Frequency Range	Impedance	Return Loss	Input Connector	Frequency
						Response
				15 dB, <0.04 GHz
560-7A50		0.01 to 18 GHz	50Ω	22 dB, <8 GHz	GPC-7	0.5 dB, 18 GHz
				17 dB, <18 GHz
				15 dB, <0.04 GHz
560-7N50B		0.01 to 20 GHz	50Ω	22 dB, <8 GHz	N(m)	0.5 dB, <18 GHz
				17 dB, <18 GHz		25 dB, <20 GHz
				14 dB, <20 GHz
				15 dB, <0.04 GHz
560-7S50B		0.01 to 20 GHz	50Ω	22 dB, <8 GHz	WSMA(m)	0.5 dB, <18 GHz
				17 dB, <18 GHz		1.25 dB, <20 GHz
				14 dB, <20 GHz
				15 dB, <0.04 GHz
560-7S50-2		0.01 to 26.5 GHz	50Ω	22 dB, <8 GHz	WSMA(m)	0.5 dB, <18 GHz
				17 dB, <18 GHz		1.25 dB, <26.5 GHz
				14 dB, <26.5 GHz
				12 dB, <0.04 GHz
				22 dB, <8 GHz		0.5 dB, <18 GHz
560-7K50		0.01 to 40 GHz	50Ω	17 dB, <18 GHz	K(m)	1.25 dB, <26.5 GHz
				15 dB, <26.5 GHz		2.2 dB, <32 GHz
				14 dB, <32 GHz		2.5 dB, <40 GHz
				13 dB, <40 GHz
				12 dB, <0.04 GHz		0.8 dB, <20 GHz
				19 dB, <20 GHz
560-7VA50		0.01 to 50 GHz	50Ω		V(m)	2.5 dB, <40 GHz
				15 dB, <40 GHz
						3.0 dB, <50 GHz
				10 dB, <50 GHz
5400-71B50		0.001 to 1.5 GHz	50Ω	20dB	BNC(m)	0.2 dB, <1.5 GHz
5400-71B75		0.001 to 1.5 GHz	75Ω	20 dB	BNC(m)	0.2 dB, <1.5 GHz
5400-7N50		0.001 to 3 GHz	50Ω	26 dB	N(m)	0.2 dB, <1 GHz
						0.3 dB, <3 GHz
5400-71N75		0.001 to 3 GHz	75Ω	26 dB, <2 GHz	N(m)	0.2 dB, <1 GHz
				20 dB, <3 GHz		0.3 dB, <3 GHz
5400-71N75L*		0.005 to 1.2 GHz	75Ω	24 dB	N(m)	0.2 dB, <1 GHz
						0.5 dB, <1.2 GHz
All Models:
Maximum Input Power: 100mW (+20 dBm)
Cable Length: 122 cm (4 ft)
Dimensions: 7.6 x 2.9 x 2.2 cm (3 x 1-1/8 x 7/8 in.)
Weight: 170g (6 oz)
* The input of the 5400-71N75L is limited to extend the damage level to 1W (+30 dBm)
The limit begins compression at 10 dBm <0.05 GHz, 15 dBm <1 GHz, or 20 dBm <1.2 GHz

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Figure 2. N Connector Pin Depth Definition

0	1
1
2	2
1	1
2	2
3	3
4	4
5

Figure 3. Pin Depth Gauge

If the measured connector is out of tolerance in the “+” region, the center pin is too long (see Table 2). Mating under this condition will likely damage the precision RF Detector connector. If the test device connector measures out of tolerance in the “–” region, the center pin is too short. This will not cause damage, but it will result in a poor connection and a consequent degradation in performance.

b.Avoid Over Torquing Connectors. O v e r torquing connectors is destructive; it may damage the connector center pin. Finger-tight is usually sufficient for Type N connectors. Always use a connector torque wrench (8 inch-pounds) when tightening GPC-7, WSMA, K, or V type connectors. Never use pliers to tighten connectors.

c.Avoid Mechanical Shock. RF Detectors are designed to withstand years of normal bench

Table 2. Allowable Device Under Test (DUT)

Connector Pin Depth

		DUT		ANRITSU	Pin Depth	Pin Depth
		Connector		Gauging		Gauge
					(inches)
		Type		Set Model		Reading
	N-Male			01-163	.207 –0.000	207 +0.000
	N-Female				+0.030	–0.030
	GPC-7			01-161	+0.000	Same as
					–0.030	Pin Depth
	WSMA-Male			01-162	–0.000	Same as
	WSMA-Female				–0.010	Pin Depth
	SMA-Male,			01-162	–0.000	Same as
	SMA-Female				–0.010	Pin Depth
	3.5 mm-Male				–0.000	Same as
	3	.	5	01-162	–0.010
						Pin Depth
	mm-Female
	K-Male,			01-162	+0.000	Same as
	K-Female				–0.010	Pin Depth

handling. However, do not drop or otherwise treat them roughly. Mechanical shock will significantly reduce their service life.

d.Avoid Applying Excessive Power. The Series 560-7XXX and 5400-71XXX RF Detectors are rated at +20 dBm (100 mW) maximum input power. Exceeding this input power level, even for short durations, will permanently damage their internal components.

e.Do Not Disturb Teflon Tuning Washers on Connector Center Pins. The center conductor of many RF component connectors contains a small teflon tuning washer that is located near the point of mating (Figure 4, page 4). This washer compensates for minor impedance discontinuities at the interface. Do not disturb this washer. The location of this washer is critcal to the performance of the RF component.

f.Keep Connectors Clean. The precise geometry that makes possible the RF component’s high performance can be easily disturbed by dirt or other contamination adhering to connector interfaces. When not in use, keep the connectors covered.

To clean the connector interfaces, use a clean cotton swab that has been dampened with denatured alcohol. Figure 5, page 4 illustrates the cleaning of male and female connectors.

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TEFLON WASHER

NOTE

The teflon washer is shown on a GPC-7 connector. A similar washer may be installed on any ANRITSU precision connector.

Figure 4. Tuning Washer on GPC-7 Connector

NOTE

Most cotton swabs are too large to fit in the smaller connector types. In these cases it is necessary to peel off most of the cotton and then twist the remaining cotton tight. Be sure that the remaining cotton does not get stuck in the connector. Cotton swabs of the appropriate size can be purchased through a medi- cal-laboratory-type supply center.

The following are some important tips on cleaning connectors:

•Use only denatured alcohol as a cleaning solvent.

•Do not use excessive amounts of alcohol as prolonged drying of the connector may be required.

•Never put lateral pressure on the center pin of the connector.

•If installed, do not disturb the teflon washer on the center conductor pin.

•Verify that no cotton or other foreign material remains in the connector after cleaning it.

•If available, use compressed air to remove foreign particles and to dry the connector.

•After cleaning, verify that the center pin has not been bent or damaged.

DENATURED ALCOHOL

DAMPEN ONLY

DO NOT SATURATE

MALE

FEMALE

Figure 5. Cleaning Male and Female Connectors

5.DETECTOR DIODE REPLACEMENT

RF Detector models 5400-71B50 and 5400-71B75 are equipped with field-replaceable detector diodes; the series 560-7XXX RF Detectors, except for model 560-7VA50, are equipped with field-replaceable detector diode modules. Paragraph 5.1 provides a procedure for replacing defective diodes in the models 5400-71B50 and 5400-71B75; paragraph 5.2 provides a procedure for replacing detector diode modules in series 560-7XXX RF Detectors.

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