MACOM AT-210TR, AT-210RTR, AT-210 Datasheet
Parameter Test Conditions
2
Unit Min. Typ. Max
Reference Insertion Loss DC – 0.1 GHz dB 0.9 1.2
DC – 0.5 GHz dB 1.3 1.5
DC – 1.0 GHz dB 1.5 1.8
DC – 2.0 GHz dB 1.8 2.0
Attenuation Accuracy
3
DC – 1.0 GHz ±(0.15 dB + 3% of Attenuation Setting in dB) dB
DC – 2.0 GHz ±(0.30 dB + 3% of Attenuation Setting in dB) dB
VSWR 1.8:1
Trise, Tfall 10% to 90% RF, 90% to 10% RF nS 10
Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF nS 15
Transients In Band mV 18
1 dB Input Power 0.05 GHz dBm 22
Compression Input Power 0.5 – 2.0 GHz dBm 28
Measured Relative 0.05 GHz dBm 49
IP
2
to Input Power 0.5 – 2.0 GHz dBm 72
(For two-tone Input Power Up to +5 dBm)
Measured Relative 0.05 GHz dBm 45
IP
3
to Input Power 0.5 – 2.0 GHz dBm 50
(For two-tone Input Power Up to +5 dBm)
Features
● Attenuation 1-dB Steps to 15 dB
● High Accuracy +/-3%
● Temperature Stability +/-0.15 dB from -40°C to +85°C
● Low Intermodulation Product: +50 dBm IP
3
● Low DC Power Consumption: 50 mW
● Low Cost SOIC16 Plastic Package
● Tape and Reel Packaging Available
1
Description
M/A-COM’s AT-210 is a 4-bit, 1-dB step GaAs MMIC digital attenuator in a low cost SOIC 16-lead surface mount
plastic package. The AT-210 is ideally suited for use where
high accuracy, fast switching, very low power consumption
and low intermodulation products are required. Typical
applications include radio, cellular, and wireless LANs, GPS
equipment and other Gain/Level Control circuits.
The AT-210 is fabricated with a monolithic GaAs MMIC
using a mature 1-micron process. The process features full
chip passivation for increased performance and reliability.
Digital Attenu a t o r,15 dB,4-Bit
DC - 2 GHz AT-210
S O - 1 6
Electrical Specifications, TA= +25°C
1. Refer to “Tape and Reel Packaging”Section, or contact factory.
2. All measurements at 1 GHz in a 50Ω system, unless otherwise specified.
3.Attenuation accuracy specifications apply with negative bias control and low inductance grounding.
V 2.00
Ordering Information
Part Number Package
AT-210 PIN SOIC 16-Lead Plastic Package
AT-210TR Forward Tape & Reel
AT-210RTR Reverse Tape & Reel
Digital Attenuator, 15 dB, 4-Bit AT-210
Functional Sch e m a t i c
Absolute Maximum Ratings
1.Operation of this device above any one of these parameters may
cause permanent damage.
Parameter Absolute Maximum
1
Max. Input Power
50 MHz +27 dBm
500-2000 MHz +34 dBm
Control Voltage +5 V, -8.5 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Typical Performance
Pin Configuration
VC1 VC1VC2 VC3 VC3 VC4 VC4VC2
8 dB 4 dB 2 dB 1 dB
16 15 14 13 12 11 10 9
8
76543
2
1
V 2.00
Pin Description Pin No. Description
1 VC1 9 RF2
2 VC1 10 GND
3 VC2 11 GND
4 VC2 12 GND
5 VC3 13 GND
6 VC3 14 GND
7 VC4 15 GND
8 VC4 16 RF1
RF1 GNDGND GNDGNDGND RF2GND
Truth Ta bl e
VC4 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Attenuation
1 0 1 0 1 0 1 0 Reference
0 1 1 0 1 0 1 0 1 dB
1 0 0 1 1 0 1 0 2 dB
1 0 1 0 0 1 1 0 4 dB
1 0 1 0 1 0 0 1 8 dB
0 1 0 1 0 1 0 1 15 dB
"0" = Vin Low, Vin Low = 0V, "1" = Vin High, Vin High = -5V
"0" = 0 to -0.2V @ 20mA Max
"1" = -5V @ 10 mA typ to -8V @ 200 mA Max
321 0
Control Inputs
(dB)
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