Anritsu wiltron 560 schematic

SERIES 560-7XXX AND 5400-71XXX RF DETECTORS

OPERATION AND MAINTENANCE MANUAL

1. INTRODUCTION

This manual provides descriptions and specifica tions for ANRITSU Series 560-7XXX and 5400-71XXX RF Detectors (Figure 1). It also con tains procedures for field replacement of detector di odes in the model 5400-71B50 and 5400-71B75 RF detectors andmostof the Series 560-7XXX RF detec tors.

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 for merly 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 con necting these devices. Complying with these precau tions will guarantee longer component life and less equipment downtime due to connector or device fail ure. Also, such compliance will ensure that RF De tector 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 re-

turned 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 con nector 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 de vices 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

NOTE: ANRITSU Company was formerly known as WILTRON Company.

l MORGAN HILL, CA 95037-2809

P/N: 10100-00035

REVISION : C

PRINTED: MARCH 2000

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

Model Frequency Range Impedance Return Loss Input Connector

15 dB, <0.04 GHz

560-7A50 0.01 to 18 GHz

560-7N50B 0.01 to 20 GHz

560-7S50B 0.01 to 20 GHz

560-7S50-2 0.01 to 26.5 GHz

560-7K50 0.01 to 40 GHz

50Ω

22 dB, <8 GHz 17 dB, <18 GHz

15 dB, <0.04 GHz 22 dB, <8 GHz 17 dB, <18 GHz 14 dB, <20 GHz

15 dB, <0.04 GHz 22 dB, <8 GHz 17 dB, <18 GHz 14 dB, <26.5 GHz

12 dB, <0.04 GHz 22 dB, <8 GHz 17 dB, <18 GHz 15 dB, <26.5 GHz 14 dB, <32 GHz 13 dB, <40 GHz

GPC-7

N(m)

WSMA(m)

K(m)

Frequency

Response

±0.5 dB, 18 GHz

±0.5 dB, <18 GHz ±1.25 dB, <20 GHz

±0.5 dB, <18 GHz ±1.25 dB, <26.5 GHz

±0.5 dB, <18 GHz ±1.25 dB, <26.5 GHz ±2.2 dB, <32 GHz ±2.5 dB, <40 GHz

12 dB, <0.04 GHz

560-7VA50 0.01 to 50 GHz

5400-71B50 0.001 to 1.5 GHz 5400-71B75 0.001 to 1.5 GHz

5400-7N50 0.001 to 3 GHz

5400-71N75 0.001 to 3 GHz

5400-71N75L* 0.005 to 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

50Ω

50Ω 75Ω

50Ω

75Ω

19 dB, <20 GHz 15 dB, <40 GHz 10 dB, <50 GHz

20dB BNC(m)

20 dB BNC(m)

26 dB N(m)

26 dB, <2 GHz 20 dB, <3 GHz

24 dB N(m)

V(m)

N(m)

±0.8 dB, <20 GHz ±2.5 dB, <40 GHz ±3.0 dB, <50 GHz

±0.2 dB, <1.5 GHz ±0.2 dB, <1.5 GHz

±0.2 dB, <1 GHz ±0.3 dB, <3 GHz

±0.2 dB, <1 GHz ±0.5 dB, <1.2 GHz

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Table 2. Allowable Device Under Test (DUT) Connector Pin Depth

Figure 2. N Connector Pin Depth Definition

Figure 3. Pin Depth Gauge

DUT

Connector

Type

N-Male N-Female

GPC-7

WSMA-Male WSMA-Female

SMA-Male, SMA-Female

3.5 mm-Male

3.5 mm-Female

K-Male, K-Female

ANRITSU

Gauging

Set Model

01-163

01-161

01-162

Pin Depth

(inches)

.207–0.000

0.030

0.000

–

0.030

–

0.000

–

0.010

–

0.000

–

0.010

–

0.000

–

0.010

0.000

–

0.010

Pin Depth

Gauge

Reading

207 +0.000

–

0.030

Same as

Pin Depth

Same as

Pin Depth

Same as

Pin Depth

Same as

Pin Depth

Same as

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 Se-

ries 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.

If the measured connector is out of tolerance in the “+” region, the center pin is too long (see Ta ble 2). Mating under this condition will likely damage the precision RF Detector connector. If the test device connector measures out of toler ance 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. Over

torquing connectors is destructive; it may dam age the connector center pin. Finger-tightis usu ally sufficient for Type N connectors. Always use a connector torque wrench (8 inch-pounds) when tightening GPC-7, WSMA, K, or V type connec tors. Never use pliers to tighten connectors.

c. Avoid Mechanical Shock. RF Detectors are

designed to withstand years of normal bench

e. Do Not Disturb Teflon Tuning Washers on

Connector Center Pins. The center conduc tor 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 dis continuities 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 geome

try that makes possible the RF component’s high performance can be easily disturbed by dirt or other contamination adhering to connector in terfaces. When not in use, keep the connectors

covered. To clean the connector interfaces, use a clean

cotton swab that has been dampened with dena tured alcohol. Figure 5, page 4 illustrates the cleaning of male and female connectors.

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Figure 4. Tuning Washer on GPC-7 Connector

DENATURED

ALCOHOL

DAMPEN ONLY

DO NOT

SATURATE

MALE

FEMALE

TEFLON WASHER

NOTE

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

The following are some important tips on cleaning connectors:

•

Use only denatured alcohol as a cleaning sol vent.

•

Do not use excessive amounts of alcohol as prolonged drying of the connector may be re quired.

•

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 mate rial 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.

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 de tector diode modules. Paragraph 5.1 provides a pro cedure for replacing defective diodes in the models 5400-71B50 and 5400-71B75; paragraph 5.2 pro vides a procedure for replacing detector diode mod ules in series 560-7XXX RF Detectors.

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