DF-36-TT [ETC]

Analog Miscellaneous ; 模拟杂项\n


型号：	DF-36-TT
厂家：	ETC
描述：	Analog Miscellaneous 模拟杂项\n 射频微波衰减器
文件：	总2页 (文件大小：104K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ATTENUATORS, PIN DIODE

SERIES DF & FF

“PHASE-FREE” 0.25–18 GHz

GENERAL INFORMATION:

KDI/Triangle’s phase free Pin diode attenuators change the amplitude of

a microwave signal with matched (low) VSWR over the full attenuation

range, and with minimum phase shift change. The units are supplied with

either an analog or with a digital control input, with a dynamic attenuation

range of 32 dB minimum. Standard digital units are supplied with 8 TTL

logic inputs (bits) and therefore can produce 256 discrete values of atten-

uation. Units with 10 or 12 bits can be provided as specials.

GENERAL SPECIFICATIONS:

Frequenc y Range:

RF Impedance:

D.C. Voltage:

0.25 to 18.0 GHz

50 OHMS

± 15 volts at ± 50 mA

Logic: (DF Series)

No. of Bits:

TTL compatible

8 L.S.B. = 0.125 dB.

Attentuation:

31.875 dB

Control Rang e: (FF Series)

0-10 volts produces 0-32 dB. Other control

voltages can be provided on request.

10 K Ohms, 20 pf

Notes:

Control Input Impedance

1. Harmonic Distortion: Approximately –50 dBc for Pin ≤ 0 dBm at a frequen-

cy of 1.0 GHz for most units. This value improves by approximately 10 dB

per octave as the frequency increases; however, since this value is depen-

dent on bandwidth of the unit, power input, and switching speed required,

the factory should be consulted if harmonic content is an important system

requirement.

2. The phase shift over the center half of the frequency range is 1/2 of the

value listed, e.g.: the phase shift of the FF-47 is ±5° from 2.5 to 3.5 GHz

(0–20 dB). See Fig. 2

Accurac y/Frequenc y Flatness

For octave models, the frequency sensi-

tivity including digital settability is typically ±

0.8 dB to 20 dB; ± 1.25 dB to 32 dB over

the frequency range. Narrow band units are

proportionally more accurate.

100 mW CW 60 watts peak operational.

Units will not be damaged by application of

1 watt CW 100 watts peak.

Operating temperature from -55°C to +85°C

A) Standard: ±0.3 dB from + 10°C to +40°C

B) ± 0.5 dB to 20 dB and ±0.75 dB to 32 dB

can be provided from -54°C to +85°C. If this

stability is desired, add a suffix TT to model

number.for example, if the DF-74 is desired

with temperature compensation, it is

ordered as DF-74-TT.

RF Power:

Temperature Inf ormation:

Temperature Stability:

3. Other configurations (up to 12 Bits) or units with different attenuation

values can be quoted on request.

.32

.38

[8,2]

[9,7]

TYP

A/2

TYP

Connector s:

SMA standard. A mating multipin connector

can be supplied with each unit upon request.

ITT Cannon MDB-1-15SSL or equivilent.

Response time of all models is 10

microsec. Faster models (to 150

nanosec.) can be quoted on request.

Any of the models “FF” can be supplied

with a linearizer by adding a prefix 2. For

example, if the FF-47 is desired with a

linearizer, it is ordered as a 2-FF-47.The

overall accuracy including linearity and

frequency sensitivity is then ±0.75 dB to

20 dB and ±1.25 dB to 32 dB.

PIN #1

REF

Switching Speed:

Linearization:

.56

[14,2]

.20

[5,0]

.10

[2,5]

ITT CANNON

MDB1-15PSP

OR EQUIV.

.125/[3,20] DIA THRU

3 MTG HOLES

DIGITAL MODELS (DF SERIES)

Out-

Line

POWER LOGIC PIN CONNECTIONS

in[mm]

4.00[101,6] 4.00[10,1]

3.00[76,2] 2.00[50,8]

4.00[101,6] 2.00[50,8]

3.600[91,4]

2.600[66,04]

3.600[91,4]

3.375[85,72] 0.38[9,65] 0.39[9,90] 0.32[8,12]

1-12

FUNCTION

Logic inputs

+15 VDC

-15 VDC

GND

1.375[34,92] 0.35[8,9]

3.375[85,72] 0.45[11,4]

0.25[6,4] 0.32[8,12]

0.25[6,4] 0.34[8,6]

4.50[114,3] 4.00[101,6] 4.100[104,14] 3.375[85,72] 0.31[7,87] 0.31[7,87]

3.50[88,9] 2.00[50,8] 3.100[78,74] 1.375[34,92] 0.40[10,2] 0.28[7,11]

4.50[114,3] 2.00[50,8] 4.100[104,14] 1.375[34,92] 0.45[11,4] 0.25[6,4]

—

KEY: Inches[Millimeters] .XX .03 .XXX .010 [.X 0.8 .XX 0.25]

60 South Jefferson Road, Whippany, NJ 07981

Tel: 973-887-8100 • Fax: 973-884-0445

E-Mail: kdisales@aol.com

TRIANGLE

An MCE Company

C O R P O R A T I O N

10/98

See us on the web @ www.kditriangle.com

ATTENUATORS, PIN DIODE

SERIES DF & FF

“PHASE-FREE” 0.25–18 GHz

SPECIFICATIONS

DF Series

Least

Significant

Bit dB

Note 3

.125

VSWR

Insertion

Loss

Maximum

For All

Values of

Atten.

Maximum Phase

Digital

Model*

No.

Analog

Model

No.

Frequency

Range

GHz

Atten.

Range

Maximum dB

Shift

Deg.

Outline

Maximum

0–20 dB

20–32 dB

FF-18

DF-18

0.25–0.5

4.5

1.5

FF-32

FF-36

FF-45

FF-47

FF-62

FF-73

FF-74

DF-32

DF-36

DF-45

DF-47

DF-62

DF-73

DF-74

0.95–1.25

1.0–2.0

1.7–2.4

2.0–4.0

4.0–8.0

7.0–12.4

8.0–18.0

.125

3.0

4.0

1.5

1.75

1.8

2.2

7.5

3.5

3.0

3.75

4.25

5.5

* Add Prefix “2” for Linearization

Add Suffix “TT” for Temp Comp; -55 to +85Њc

0.38

[09,7]

TYP.

TYPICAL CURVE OF ATTENUATION

VS CONTROL VOLTAGE

A/2

FIG. 1

0.125[3,18] DIA THRU

3 MTG. HOLES

0.5 dB

NON

LINEARIZED

GND

NOTE:EITHER

RF CONNECTOR

MAY BE USED

FOR INPUT

-15V

+15V

CON-

TROL

SMA

FEMALE

TYP.

LINEARIZED

.56[14,22]

0.10[2,5]

0.20[5,1]

BEST FIT

STRAIGHT

LINE

ANALOG MODELS (FF SERIES)

+15

TYPICAL CURVE OF FF-18 OR DF-18

AT MAX. ATTENUATION (32 dB)

+12

CONTROL VOLTAGE

(V)

TYPICAL CURVE OF FF-45 OR DF-45

AT MAX. ATTENUATION (32 dB)

TYPICAL CURVE OF FF-18 OR DF-18

AT 20 dB ATTENUATION

-3

TYPICAL CURVE OF FF-45 OR DF-45

AT 20 dB ATTENUATION

-6

-9

REF. PHASE AT ZERO ATTENUATION

FOR FF-18 OR DF-18 AND FF-45 OR DF-45

-12

-15

Fmax

Fmin

FREQUENCY

PHASE SHIFT VS FREQUENCY

AT VARIOUS ATTENUATION LEVELS