Specifications
Model Number :
AT-220
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Supply Ability :
2800pcs
Delivery Time :
1 day
Packaging Details :
Please contact me for details
Description :
RF Attenuators 20dB 0 Hz ~ 18 GHz 50 Ohms 1W SMA In-Line Module
Low Intermodulation Product :
+50 dBm IP3
Low DC Power Consumption :
50 µW
Package :
Plastic SOIC-16
Temperature Stability +/-0.15 dB :
-40°C to +85°C
Description

Digital Attenuator, 30 dB, 4-Bit DC-2.0 GHz AT-220

Features Functional Schematic

• Attenuation 2-dB Steps to 30 dB

• High Accuracy

• Low Intermodulation Product: +50 dBm IP3

• Low DC Power Consumption: 50 µW

• SOIC-16 Plastic Package

• Tape and Reel Packaging Available

• Temperature Stability +/-0.15 dB: -40°C to +85°C

Description

M/A-COM’s AT-220 is a 4-bit, 2-dB step GaAs MMIC digital attenuator in a low cost SOIC 16-lead surface mount plastic package. The AT-220 is ideally suited for use where high accuracy, fast switching, very low power consumption and low intermodulation products are required. Typical applications include radio and cellular equipment, wireless LANs, GPS equipment and other Gain/Level Control circuits.

The AT-220 is fabricated with a monolithic GaAs MMIC using a mature 1-micron process. The process features

full chip passivation for increased performance and reliability.

Pin Configuration

Pin No. Function Pin No. Function
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

Absolute Maximum Ratings 1

Parameter Absolute Maximum

Input Power:

50 MHz

500-2000 MHz

+27 dBm

+34 dBm

Control Voltage -8.5 V ≤ VC ≤ 5V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C

1. Exceeding any one or combination of these limits may cause permanent

damage to this device.

Electrical Specifications: TA = 25°C, VC = 0 V / −5 V, Z0 = 50 Ω

Parameter Test Conditions Frequency Units Min Typ Max
Insertion Loss (reference state)

DC - 0.5 GHz

DC -1.0 GHz

DC -2.0 GHz

dB

dB

dB

--

--

--

1.5

1.6

1.8

1.7

1.8

2.1

Attenuation Accuracy 2

DC -1.0 GHz

DC -2.0 GHz

± (0.15 dB + 3% of Atten Setting in dB) dB

± (0.30 dB + 4% of Atten Setting in dB) dB

VSWR Ratio -- 1.2:1 --
Trise, Tfall 10% to 90% RF, 90% to 10% RF -- nS -- 12 --
Ton, Toff

50% Control to 90% RF,

50% Control to 10% RF

-- nS -- 18 --
Transients In-Band -- mV -- 25 --
1 dB Compression

Input Power

Input Power

0.05 GHz

0.5 - 2.0 GHz

dBm dBm

--

--

20

28

--

--

IP2

Measured Relative to Input Power

(For two-tone input power up to +5 dBm)

0.05 GHz

0.5 - 2.0 GHz

dBm dBm

--

--

45

68

--

--

IP3

Measured Relative to Input Power

(For two-tone input power up to +5 dBm)

0.05 GHz

0.5 - 2.0 GHz

dBm dBm

--

--

40

50

--

--

Control Current |VC| = 5 V µA -- 100

2. Attenuation accuracy specifications apply with negative bias control and low inductance grounding.

SOIC-16

Typical Performance Curves

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Digital Attenuator Integrated Circuit Chip 30dB, 4-Bit DC - 2.0 GHz AT-220

Ask Latest Price
Model Number :
AT-220
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Contact Supplier
Digital Attenuator Integrated Circuit Chip 30dB, 4-Bit DC - 2.0 GHz AT-220

ChongMing Group (HK) Int'l Co., Ltd

Active Member
3 Years
shenzhen
Since 2008
Business Type :
Distributor/Wholesaler
Total Annual :
5000000-7000000
Employee Number :
80~100
Certification Level :
Active Member
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