AT20-0107-TB MACOM [Tyco Electronics], AT20-0107-TB Datasheet

AT20-0107-TB

Manufacturer Part Number

AT20-0107-TB

Description

Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 2.0 GHz

Manufacturer

MACOM [Tyco Electronics]

Datasheet

1.AT20-0107-TB.pdf (3 pages)

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Digital Attenuator, 31.5 dB, 6-Bit,

TTL Driver, DC - 2.0 GHz

Features

Description

M/A-COM's AT20-0107 is a GaAs FET 6-bit digital

attenuator with a 0.5 dB minimum step size and a 31.5 dB

total attenuation. This attenuator and integral TTL driver is

in a ceramic 24-lead surface mount package. The AT20-

0107 is ideally suited for use where accuracy, fast speed,

very low power consumption and low intermodulation

products are required. Typical applications include dynamic

range setting in precision receiver circuits and other gain/

leveling control circuits. Available with enhanced perform-

ance as fully hermetic version. Environmentally screenable

as P/N AT-107.

Electrical Specifications

Attenuation Accuracy

Attenuation: 0.5 dB Steps to 31.5 dB

Temperature Stability: ±0.18 dB from –40ºC to +85ºC

Typ.

Low DC Power Consumption

Surface Mount Package

Integral TTL Driver

High Intercept Point

Low Cost/High Performance

1 dB Compression

Above reference insertion loss.

All specifications apply when operated with bias voltages of +5V for V

ports unless otherwise stated.

This attenuator is guaranteed monotonic.

For the attenuator to meet the guaranteed specifications, it is necessary to have a DC return on either RF1 or RF2. The DC

return can be either a 10KO resistor, or an RF choke.

Insertion Loss

Parameter

= -5 V for the typical numbers given.

Trise, Tfall

Transients

Input IP

Ton, Toff

VSWR

-Vee

Vcc

-Iee

Icc

3,4

Two Tone Inputs up to +5 dBm

Any Bit or Combination of Bits

50% Control to 90%/10% RF

In-band (peak to peak)

-Vee = -5.0 to -8.0V

Test Conditions

Vcc = 4.5 to 5.5V

10% to 90%

Input Power

Full Range

: T

—

= +25°C

DC - 2.0 GHz

0.5 - 2.0 GHz

Frequency

50 MHz

CR-13

—

and –5.0 V to –8.0 V for V

Units

Ratio

dBm

Min

-8.0

4.5

—

Typ.

150

+21

+29

+35

+48

+75

+79

3.2

5.0

—

and 50O impedance at all

+(.3 +7% of atten.)

-(.2 +1% of atten.)

Max

1.8:1

-5.0

3.8

5.5

6.0

1.0

—

V 4.00

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AT20-0107-TB Summary of contents

Page 1

... M/A-COM's AT20-0107 is a GaAs FET 6-bit digital attenuator with a 0.5 dB minimum step size and a 31.5 dB total attenuation. This attenuator and integral TTL driver ceramic 24-lead surface mount package. The AT20- 0107 is ideally suited for use where accuracy, fast speed, very low power consumption and low intermodulation products are required ...

Page 2

... Visit www.macom.com for additional data sheets and product information. 6 Truth Table C16 Absolute Maximum 0 +27 dBm 0 +34 dBm 0 +5.5V 0 -8.5V 0 -0. +0. -40°C to +125°C 1 -65°C to +150° TTL Low TTL High PCB Layout AT20-0107 C0.5 Attenuation Loss, Reference 0 ...

Page 3

... Frequency (GHz) RF1 VSWR vs. Frequency Loss & 0 1.8 1.6 1.4 1 0.5 1 Frequency (GHz) Ordering Information Part Number Package AT20-0107 Bulk Packaging AT20-0107TR Tape and Reel (1K Reel) AT20-0107-TB Unit mounted on a test board AT20-0107 V 4.00 1 & 1 ...

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