M A COM MAATSS0001TR, MAATSS0001-TB, MAATSS0001 Datasheet

Digital Attenuator, 5 Bit, 15.5 dB,

0.5 dB

8 dB

1 dB

VC1

500 - 2500 MHz

V 3.00

MAATSS0001

Features

n 5 Bits, 0.5 dB Steps
n Excellent Accuracy
n Single Positive Control (+3 to +5V)
n Small Low Cost QSOP-16 (SSOP-16) Package

Description

The M/A-COM MAATSS0001 is a 0.5 dB step GaAs
MMIC digital attenuator with 15.5 dB dynamic range in a
low cost QSOP-16 (SSOP-16) package. It requires external
DC 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.

The MAATSS0001 is fabricated using M/A-COM’s GaAs

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

Functional Schematic

VC5 VC4 VC3 VC2

RF

IN

Absolute Maximum Ratings 1

Parameter

Max Input Power

0.5 - 2.5 GHz

Operating Temperature -40°C to +85°C

Storage Temperature -65°C to +150°C

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

Absolute Maximum

+34 dBm

RF

OUT

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

Parameter Conditions Frequency Units Min. Typ. Max.

Insertion Loss — 0.5 - 1.8 GHz

VSWR Any State 0.5 - 2.5 GHz Ratio — 1.6:1 1.9:1

Accuracy Any State 0.5 - 0.8 GHz

Step Change Any State 0.5 - 1.8 GHz

Attenuation Range — 0.5 - 2.5 GHz dB 14.0 15.0 —
1 dB Compression

Input Power

IP3 +3 V Two tones input power up to +5 dBm

+5 V Two tones input power up to +5 dBm

Trise, Tfall 10/90% or 90/10% RF — µS — 2.14 —

Ton, Toff 50% CNTL to 90/10% RF — µS — 2.14 —

Transients In Band — mV — 62 —

Control Voltages +3 V

+3 V
+5 V

+5 V

1.8 - 2.2 GHz

2.2 - 2.5 GHz

0.8 - 1.8 GHz

1.8 - 2.2 GHz

2.2 - 2.5 GHz

1.8 - 2.2 GHz

2.2 - 2.5 GHz

0.5 - 2.5 GHz

0.5 - 2.5 GHz

0.5 - 2.5 GHz

0.5 - 2.5 GHz

—
—

dB
dB
dB

dB
dB
dB

dBm
dBm

dBm
dBm

µA
µA

—
—
—

± (0.3 + 4% atten setting)
± (0.3 + 3% atten setting)
± (0.3 + 6% atten setting)
± (0.3 + 8% atten setting)

0.3

0.2

0.1

19
22

34
43

—
—

1.9

2.2

2.5

—
—
—

25
30

36
46

—
—

2.2

2.5

2.8

0.8

0.9

1.0

—
—

—
—

40
40

Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz

MAATSS0001

V 3.00

Pin Out

Truth Table

Control Inputs

VC5 VC4 VC3 VC2 VC1 Attenuation

(dB)

1 1 1 1 1 Reference
0 1 1 1 1 0.5 dB
1 0 1 1 1 1 dB
1 1 0 1 1 2 dB
1 1 1 0 1 4 dB
1 1 1 1 0 8 dB

1 = Vhigh = (Vs ± 0.1) V, 0 = (0.0 ± 0.2) V

QSOP-16 (SSOP-16)

PIN 16

XX-XXX

YYWWXXX

MACOM

PIN 1

A

Dimensions

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

D

be

Minimum Nominal Maximum

— 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.

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