Digital Attenuator, 6-Bit, 0.5 dB LSB step

DC - 30 GHz

Rev. V1

MAAD-011021

1

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Features

 6-bit, 0.5 dB LSB, 31.5 dB range

 DC to 30 GHz operation

 Integrated TTL 0/+5V control

 +/- 0.5 dB typical bit error

 Low RMS phase 4.3° @ 20 GHz

 Lead-Free 3 mm 16-lead PQFN package

 ESD protection for all controls and bias

Description

The MAAD-011021 is a wide band 6-bit digital

attenuator covering DC to 30 GHz. The attenuation

bit-values are 0.5 dB LSB (least significant bit), 1, 2,

4, 8, and 16 dB for a total attenuation of 31.5 dB.

Attenuation error is typically less than +/- 0.5 dB,

RMS phase error is less than 5 degrees at 20 GHz,

and typical insertion loss is 7.2 dB at 15 GHz.

Return loss is typically 12 dB across all frequencies

and attenuation states.

The attenuator integrates an inverter to allow a

single control for series/shunt attenuation. Inverter

is 0 V / +5 V.

The device is also available as bare die; order part

number MAAD-011021-000DIE.

Part Number

Package

MAAD-011021-TR0500

500 piece reel

MAAD-011021-SMB

Sample Board

* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.

1. Reference Application Note M513 for reel size information.

2. All sample boards include 3 loose parts.

Functional Schematic

Pin No.

Function

Pin No.

Function

1

Ground

9

V6 (16 dB)

2

RF Input

10

Ground

3

Ground

11

RF Output

4

V1 (0.5 dB)

12

Ground

5

V2 (1 dB)

13

No Connection

6

V3 (2 dB)

14

No Connection

7

V4 (4 dB)

15

8

V5 (8 dB)

16

No Connection

17

3. MACOM recommends connecting unused package pins to

ground.

4. The exposed pad centered on the package bottom must be

connected to RF, DC and thermal ground.