Digital Attenuator, 31.0 dB, 1 dB
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
VC5
VC4
VC3
VC2
VC1
1dB
2dB
16dB
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
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 MAATSS0002 is fabricated using M/A-COM’s GaAs
1.0 micron process.
The process features full chip
passivation for increased performance and reliability.
RF
IN
RF
OUT
Absolute Maximum Ratings
1
Parameter
Max Input Power
0.8 - 2.5 GHz
Operating Temperature
Storage Temperature
Absolute Maximum
+34 dBm
-40°C to +85°C
-65°C to +150°C
1. Operation of this device above any one of these
parameters may cause permanent damage.
Electrical Specifications: T
A
= 25 °C, Z
0
= 50
Ω
Parameter
Insertion Loss
Conditions
—
Frequency
0.8 - 1.5 GHz
1.5 - 2.0 GHz
2.0 - 2.5 GHz
0.8 - 1.5 GHz
1.5 - 2.0 GHz
2.0 - 2.5 GHz
0.8 - 1.5 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
0.8 - 2.5 GHz
0.8 - 2.5 GHz
dB
dB
dB
dB
dB
µS
µS
mV
dBm
dBm
dBm
dBm
Units
dB
dB
dB
Min.
—
—
—
Typ.
1.8
2.2
2.7
Max.
1.9
2.3
2.9
Accuracy
—
± (0.3 dB + 4% of Attenuation)
± (0.3 dB + 3% of Attenuation)
± (0.4 dB + 3% of Attenuation)
0.4
0.4
0.4
30.0
—
—
—
—
15
18
34
43
1.0
1.0
1.0
31.0
—
2
2
120
—
—
—
—
1.4
1.6
1.8
32.2
2.0:1
—
—
—
—
—
—
—
Step Change
—
Attenuation Range
VSWR
Trise, Tfall
Ton, Toff
Transients
P1dB
IP3
Control Voltages
—
—
10% to 90% RF, 90% to 10% RF
50% Control to 10% / 90% RF
In Band
+3V
+5V
+3V Input Power up to + 5 dBm
+5V Input Power up to +5 dBm
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
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
