Digital Attenuator, 31.5 dB, 6-Bit,

TTL Driver, DC-4.0 GHz

CSP-1

V 7.00

Parameter

Test Conditions

Frequency

Units

Min

Typical

Max

Insertion Loss

—

DC - 4.0 GHz

dB

—

4.5

5.1

Attenuation

Accuracy

Individual Bits 0.5-1-2-4-8-16 dB

Any Combination of Bits

1 to 31.5 dB

DC - 4.0 GHz

DC - 4.0 GHz

dB

dB

—

—

—

—

±(.3 +7% of atten setting)

±(.5 +8% of atten setting)

VSWR

Full Range

DC - 4.0 GHz

Ratio

—

2.0:1

2.2:1

Switching Speed

50% Cntl to 90%/10% RF

10% to 90% or 90% to 10%

—

—

nS

nS

—

—

75

20

150

50

1 dB

Compression

—

—

50 MHz

0.5 - 4.0 GHz

dBm

dBm

—

—

+21

+29

—

—

Two-tone inputs up to +5 dBm

50 MHz

0.5-4.0 GHz

dB

dB

—

—

+35

+48

—

—

+Vcc

-Vee

—

—

—

—

V

V

4.75

-8.0

5.0

-5.0

5.25

-4.75

Logic “0”

Sink Current is 20 µA max.

—

V

0.0

—

0.8

Logic “1”

Source Current is 20 µA max.

—

V

2.0

—

5.0

Icc

Vcc min to max, Logic “0” or “1”

—

mA

—

0.2

6

-Iee

-Vee min to max, Logic “0” or “1”

—

mA

—

-0.2

-1

Features

n

Attenuation: 0.5 dB Steps to 31.5 dB

n

Low DC Power Consumption

n

Small Footprint, JEDEC Package

n

Integral TTL Driver

n

50 ohm Impedance

n

Test Boards are Available

n

Tape and Reel Packaging Available

Description

M/A-COM's AT90-0107 is a GaAs FET 6-bit digital

attenuator with integral TTL driver. Step size is 0.5 dB pro-

viding a 31.5 dB total attenuation range. This device is in

an FQFP-N plastic surface mount package. The AT90-0107

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

low power consumption and low costs are required.