Datasheet MAATSS0002TR, MAATSS0002-TB, MAATSS0002 Datasheet (M A COM)

Digital Attenuator, 31.0 dB, 1 dB

1dB

16dB

2dB

VC5

VC4

VC3

VC2

VC1

RF

RF

LSB, 5-Bit, 800 - 2500 MHz

V 2.00

MAATSS0002

Features

n 5 Bits, 1 dB Steps
n Excellent Accuracy
n Positive Control (+3 to +5V)
n Small Low Cost QSOP-16 (SSOP-16) Package

Functional Schematic

Description

The M/A-COM MAATSS0002 is a 1 dB step GaAs MMIC
digital attenuator with 31.0 dB dynamic range in a low cost
QSOP-16 (SSOP-16) package. It requires external DC

Absolute Maximum Ratings 1

blocking capacitors on the RF ports, positive supply voltage
and five individual bit control voltages. It is particularly
suited where high attenuation accuracy, low insertion loss
and low intermodulation products are required. Typical
applications include base stations, wireless data, and
wireless local loop gain level control circuits.

Parameter

Max Input Power

0.8 - 2.5 GHz

Operating Temperature -40°C to +85°C

Storage Temperature -65°C to +150°C

Absolute Maximum

+34 dBm

The MAATSS0002 is fabricated using M/A-COM’s GaAs

1.0 micron process. The process features full chip
passivation for increased performance and reliability.

1. Operation of this device above any one of these
parameters may cause permanent damage.

Electrical Specifications: TA = 25 °C, Z0 = 50 Ω

Parameter Conditions Frequency Units Min. Typ. Max.

Insertion Loss — 0.8 - 1.5 GHz

Accuracy — 0.8 - 1.5 GHz

Step Change — 0.8 - 1.5 GHz

Attenuation Range — 0.8 - 2.5 GHz dB 30.0 31.0 32.2

VSWR — 0.8 - 2.5 GHz dB — — 2.0:1

Trise, Tfall 10% to 90% RF, 90% to 10% RF — µS — 2 —

Ton, Toff 50% Control to 10% / 90% RF — µS — 2 —

Transients In Band — mV — 120 —

P1dB +3V

+5V

IP3 +3V Input Power up to + 5 dBm

+5V Input Power up to +5 dBm

Control Voltages Vlow = 0.0 ± 0.2V @ 20 µA, 40 µA Max.

Vhigh = +3 ± 0.2V or +5V ± 0.2V @ 20 µA, 40 µA Max.
Vs = Vhigh @ 200 µA Max

1.5 - 2.0 GHz

2.0 - 2.5 GHz

1.5 - 2.0 GHz

2.0 - 2.5 GHz

1.5 - 2.0 GHz

2.0 - 2.5 GHz

0.8 - 2.5 GHz

0.8 - 2.5 GHz

0.8 - 2.5 GHz

0.8 - 2.5 GHz

dB
dB
dB

± (0.3 dB + 4% of Attenuation)
± (0.3 dB + 3% of Attenuation)
± (0.4 dB + 3% of Attenuation)

dB
dB
dB

dBm
dBm

dBm
dBm

—
—
—

0.4

0.4

0.4

15
18

34
43

1.8

2.2

2.7

1.0

1.0

1.0

—
—

—
—

1.9

2.3

2.9

1.4

1.6

1.8

—
—

—
—

Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz

GND

GND

GND

GND

GND

GND

GND

GND

GND

VC1

VC2

VC3

VC4

VC5

MAATSS0002

V 2.00

Pin Out

RF1

50 pF

1

2

AT0002

3

4

5

6

7
8

16

15

14

13

12

11

10

9

50 pF

RF2

10KOhm

Truth Table

Control Inputs

VC5 VC4 VC3 VC2 VC1 Attenuation

1 1 1 1 1 Reference
0 1 1 1 1 1 dB
1 0 1 1 1 2 dB
1 1 0 1 1 4 dB
1 1 1 0 1 8 dB
1 1 1 1 0 16 dB

1 = Vhigh = (Vs ± 0.1) V, 0 = (0.0 ± 0.1) V

(dB)

VS

QSOP-16 (SSOP-16)

PIN 16

XX-XXX

YYWWXXX

MACOM

PIN 1

A

D

be

Dimensions

Minimum Nominal Maximum

A 0.053 0.064 0.069

A1 0.004 0.006 0.010

b 0.008 — 0.012

c 0.007 — 0.010
D 0.189 0.193 0.197
e 0.025 basic 0.025 basic 0.025 basic
E 0.228 0.236 0.244

E1 0.150 0.154 0.157

L 0.016 0.025 0.050

0

— 0.025 basic —

E1 E

A1

Measurement (Inches)

c

L

θ

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

2

Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz

Typical Performance Curves

MAATSS0002

V 2.00

Insertion Loss vs. Frequency

0

-0.5

-1

-1.5

IL (dB)

-2

-2.5

-3

0.8

0.911.1

25°C

1.2

+85°C

1.3

1.4

1.5

1.6

Frequency (GHz)

1.7

1.8

VSWR vs. Frequency @ +25°C

16 dB 8 dB 4 dB 31 dB

2.00

1.90

1.80

1.70

1.60

1.50

1.40

VSWR (ratio)

1.30

1.20

1.10

1.00

0.8

0.911.1

1.2

1.3

1.4

Frequency (GHz)

1.5

1.6

1.7

1.8

-40°C

1.922.1

1.922.1

2.2

2.2

2.3

2.3

2.4

2.4

2.5

2.5

VSWR vs. Frequency @ +25°C

0dB1dB

2dB

1.45

1.40

1.35

1.30

1.25

1.20

1.15

VSWR (ratio)

1.10

1.05

1.00

0.8

0.911.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.922.1

Frequency (GHz)

Deviation from Attenuation Setting
@ 0.8 GHz

25°C

+85°C

0

-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-0.7

Deviation (dB)

-0.8

-0.9

-1
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Atten. Settings

2.2

2.3

-40°C

2.4

2.5

Deviation from Attenuation Setting
@ 1.5 GHz

25°C

0.4

0.2

0

-0.2

-0.4

Deviation (dB)

-0.6

-0.8

-1
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

+85°C

Atten. Settings

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

-40°C

Deviation from Attenuation Setting
@ 2.0 GHz

25°C

+85°C

1

0.8

0.6

0.4

0.2
0

-0.2

-0.4

Deviation (dB)

-0.6

-0.8

-1

-1.2
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Atten. Settings

-40°C

3

Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz

Typical Performance Curves

MAATSS0002

V 2.00

Deviation from Attenuation Setting
@ 2.5 GHz

25°C -40°C+85°C

1.5

1

0.5

0

-0.5

Deviation (dB)

-1

-1.5
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Atten. Settings

Typical Step Size @ +25°C

1.5GHz2.5GHz

1.8

1.6

1.4

1.2
1

0.8

0.6

0.4

0.2

Step (Atten i - Atten i+1) (dB)

0

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Atten. Setting

Typical Step Size @ +25°C

0.8 GHz 2.0 GHz

1.6

1.4

1.2
1

0.8

0.6

0.4

0.2

Step (atten i-atten i+1) (dB)

0

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Atten. Setting

Step Size over Temperature
@ 0.8 GHz

+85°C

-0.6

-0.7

-0.8

-0.9

-1

Step Size (dB)

-1.1

-1.2

-1.3
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

-40°C

Atten. Settings

25°C

Step Size over Temperature
@ 1.5 GHz

25°C

-0.4

-0.5

-0.6

-0.7

-0.8

-0.9

-1

-1.1

Step Size (dB)

-1.2

-1.3

-1.4
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

+85°C

Atten. Settings

-40°C

Step Size over Temperature
@ 2.0 GHz

25°C -40°C+85°C

-0.3

-0.5

-0.7

-0.9

-1.1

Step Size (dB)

-1.3

-1.5

-1.7
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Atten. Settings

4

Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz

Atten. Settings

Typical Performance Curves

MAATSS0002

V 2.00

Step Size over Temperature
@ 2.5 GHz

+25°C -40°C+85°C

0

-0.2

-0.4

-0.6

-0.8

-1

-1.2

-1.4

Step Size (dB)

-1.6

-1.8

-2
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Ordering Information

Part Number Package

MAATSS0002 Bulk Packaging

MAATSS0002TR Tape and Reel (1K Reel)

MAATSS0002-TB Units Mounted on Test Board

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

5