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AA220-25 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Alpha Industries - GaAs IC 4 Bit Digital Attenuator 2 dB LSB DC-2 GHz

شماره قطعه AA220-25
شرح مفصل GaAs IC 4 Bit Digital Attenuator 2 dB LSB DC-2 GHz
تولید کننده Alpha Industries 
آرم Alpha Industries 


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AA220-25 شرح
GaAs IC 4 Bit Digital Attenuator
2 dB LSB DC–2 GHz
Features
I Attenuation in 2 dB Steps to 30 dB
with High Accuracy
I Low Cost SOIC-16 Plastic Package
I Low DC Power Consumption
SOIC-16
PIN 16
PIN 1
INDICATOR
AA220-25
(Previously AD220-25)*
0.050
(1.27 mm) BSC
0.244 (6.20 mm)
0.228 (5.80 mm)
Description
The AD220-25 is an IC FET digital attenuator consisting
of four monolithic attenuators with LSB of 2 dB and a total
attenuation of 30 dB with all attenuators connected.
The AD220-25 is particularly well suited where high
attenuation accuracy, low insertion loss and low
intermodulation products are required. Typical applications
include cellular, radio, wireless data, wireless local loop
and other gain level control circuits.
PIN 1
0.068
(1.73 mm) MAX.
0.020 (0.51 mm)
0.013 (0.33 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45˚
CHAMFER
8˚ MAX.
0.394 (10.00 mm)
0.386 (9.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
0.0098 (0.25 mm)
0.0075 (0.19 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
Electrical Specifications at 25°C (0, -5 V)
Insertion Loss3
Parameter1
Attenuation Range
Attenuation Accuracy4
VSWR (I/O)
Frequency2
DC–0.1 GHz
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–1.0 GHz
DC–2.0 GHz
Min.
Typ. Max.
1.2 1.4
1.4 1.7
1.5 1.8
2.0 2.5
30
± (0.2 + 3% of
Attenuation Setting in dB)
± (0.3 + 3% of
Attenuation Setting in dB)
1.4:1
1.6:1
1.6:1
2.0:1
Unit
dB
dB
dB
dB
dB
dB
dB
Operating Characteristics at 25°C (0, -5 V)
Parameter
Switching Characteristics5
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
Frequency
Min.
Typ.
15
25
25
Max.
Unit
ns
ns
mV
Input Power for 1 dB Compression
0.50–2.0 GHz
0.05 GHz
+28 dBm
+22 dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +5 dBm
0.50–2.0 GHz
0.05 GHz
+48 dBm
+38 dBm
Control Voltages
VLow = 0 to -0.2 V @ 20 µA Max.
VHigh = -5 V @ 50 µA Typ. to -8 V @ 200 µA Max.
1. All measurements made in a 50 system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/°C.
4. Attenuation referenced to insertion loss.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
*Due to conflict with another company’s product numbering system, Alpha’s attenuator products starting with the letters “AD” are being changed to “AA”.
Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
Specifications subject to change without notice. 10/99A
1

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AA220-25 GaAs IC 4 Bit Digital Attenuator 2 dB LSB DC-2 GHz Alpha Industries
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