Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz

AT20-0263

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

V4

2

RoHS

Compliant

1

Parameter

Test Conditions

Frequency

Units

Min

Typ

Max

Reference Insertion Loss

—

DC - 0.5 GHz

DC - 1.0 GHz

DC - 2.0 GHz

dB

dB

dB

—

—

—

2.0

2.2

2.5

2.4

2.8

3.0

Attenuation Accuracy

2

Any Single Bit

Any Combination of Bits

DC - 1.0 GHz

DC - 2.0 GHz

± (0.25 +3% of atten setting in dB) dB

± (0.25 +3% of atten setting in dB) dB or ± 0.4 dB,

whichever is greater

VSWR

—

DC - 2.0 GHz

Ratio

—

—

1.6:1

Trise, Tfall

10% to 90%

—

ns

—

50

—

Ton, Toff

50% Control to 90/10% RF

—

ns

—

150

—

Transients

In-Band (peak-peak)

—

mV

—

50

—

1 dB Compression

Input Power

Input Power

0.05 GHz

0.5 - 2.0 GHz

dBm

dBm

—

—

+20

+28

—

—

Input IP3

For two-tone Input Power

Up to +5 dBm

0.05 GHz

0.5 - 2.0 GHz

dBm

dBm

—

—

+40

+48

—

—

Input IP2

For two-tone Input Power

Up to +5 dBm

0.05 GHz

0.5 - 2.0 GHz

dBm

dBm

—

—

+45

+68

—

—

Vcc

—

—

V

4.5

5.0

5.5

Vee

—

—

V

-8.0

—

-5.0

Icc

Vcc = 4.5 to 5.5V

Vctl = 0 to 0.8V, or Vcc –

2.1V to Vcc

—

mA

—

—

5.0

Iee

Vee = -5.0 to -8.0V

—

mA

—

—

1.0

1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.

2. This attenuator is guaranteed monotonic.

Absolute Maximum Ratings

3,4

Parameter

Absolute Maximum

Max Input Power

0.5 GHz

0.5 - 2.0 GHz

+27 dBm

+34 dBm

Supply Voltages

Vcc

Vee

+5.5V

-8.5V

Control Voltage

5

-0.5V to Vcc +0.5V

Operating Temperature

-40°C to +125°C

Storage Temperature

-65°C to +150°C

3.

Exceeding any one or combination of these limits may cause

permanent damage to this device.

4.

M/A-COM does not recommend sustained operation near

these survivability limits.

5.

Standard CMOS TTL interface, latch-up will occur if logic

signal is applied prior to power supply.

Recommended PCB Configuration