Digital Attenuator

50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz

Rev. V5

MAAD-007082

2

2

M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.

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

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2

Parameter

Frequency

Units

Min

Typ

Max

Test Conditions

Insertion Loss

DC - 2.4 GHz

dB

—

5.5

6.0

—

Attenuation Accuracy

DC - 2.4 GHz

DC - 2.4 GHz

dB

dB

—

—

—

—

±(.3 +5% of atten setting)

±(.5 +8% of atten setting)

Individual Bits 1-2-4-8-16-32 dB

Any Combination of Bits 1 to 50 dB

VSWR

DC - 2.4 GHz

Ratio

—

1.8:1

2:1

Full Range

Switching Speed

—

—

ns

ns

—

—

75

20

150

50

50% Cntl to 90%/10% RF

10% to 90% or 90% to 10%

1 dB Compression

50 MHz

0.5 - 2.40 GHz

dBm

dBm

—

—

+21

+24

—

—

—

—

50 MHz

0.5-2.4 GHz

dB

dB

—

—

+35

+48

—

—

Two-tone inputs up to +5 dBm

+Vcc

-Vee

—

—

V

V

4.75

-8.0

5.0

-5.0

5.25

-4.75

—

—

Logic “0”

—

V

0.0

—

0.8

Sink Current is 20 µA max.

Logic “1”

—

V

2.0

—

5.0

Source Current is 20 µA max.

LOW-level input voltage

HIGH-level input voltage

—

—

V

V

0.0

2.0

—

—

0.8

5.0

lin (Input Leakage Current)

—

uA

-1.0

—

1.0

Icc

(Quiescent Supply Current)

—

uA

—

250

400

(Additional Supply Current

Per TTL Input Pin)

—

mA

—

—

1.0

—

mA

-1.0

-0.2

—

Thermal Resistance θjc

—

—

°C/W

—

15

—

Parameter

Absolute Maximum

Max. Input Power

0.05 GHz

0.5 - 2.4 GHz

+27 dBm

+34 dBm

Operating Temperature

-40ºC to +85ºC

Storage Temperature

-65ºC to +125ºC

3. Exceeding any one or combination of these limits may cause

permanent damage to this device.

4. MACOM 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.

Truth Table

C32

C16

C8

C4

C2

C1

Attenuation

0

0

0

0

0

0

Loss, Reference

0

0

0

0

0

1

1.0 dB

0

0

0

0

1

0

2.0 dB

0

0

0

1

0

0

4.0 dB

0

0

1

0

0

0

8.0 dB

0

1

0

0

0

0

16.0 dB

1

0

0

0

0

0

32.0 dB

1

1

0

0

1

0

50.0 dB

0 = TTL Low; 1 = TTL High