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AA101-80 Schematic ( PDF Datasheet ) - Alpha Industries

Teilenummer AA101-80
Beschreibung GaAs IC 5 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz
Hersteller Alpha Industries
Logo Alpha Industries Logo 




Gesamt 5 Seiten
AA101-80 Datasheet, Funktion
GaAs IC 5 Bit Digital Attenuator
1 dB LSB Positive Control 0.5–2.5 GHz
AA101-80
Features
I Attenuation 1 dB Steps to 31 dB
with High Accuracy
I Single Positive Control (+3 to +5 V) for
Each Bit
I Low DC Power Consumption
I Small Low Cost SSOP-16 Plastic Package
Description
The AA101-80 is a 5 bit, single positive control GaAs IC
FET digital attenuator in a low cost SSOP-16 package.
This attenuator has an LSB of 1 dB and a total attenuation
of 31 dB. The attenuator requires external DC blocking
capacitors, positive supply voltage (VS) and five individual
bit control voltages (V1–V5). The AA101-80 is particularly
suited where high attenuation accuracy, low insertion loss
and low intermodulation products are required. Typical
applications include base station, wireless data, and
wireless local loop gain level control circuits.
SSOP-16
0.025
(0.635 mm) TYP.
PIN 16
0.244 (6.20 mm)
0.228 (5.80 mm)
PIN 1
0.068
(1.73 mm) MAX.
0.197 (5.00 mm)
0.189 (4.80 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.0196 X 45˚
CHAMFER
R 0.008
MIN.
R 0.013/0.008
0.0098
(0.0075 mm)
0.010
(0.25 mm) TYP.
-15˚
0.010 (0.25 mm)
0.004 (0.10 mm)
8˚ MAX.
Electrical Specifications at -40°C to +85°C (0, +5 V)
Parameter1
Condition
Frequency
Min.
Typ. Max. Unit
Insertion Loss
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
2.0 2.4 dB
2.6 3.0 dB
2.9 3.3 dB
Attenuation Range
Attenuation Accuracy2
VSWR (I/O)3
Switching Characteristics4
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.5–2.5 GHz
31
± (0.2 + 3% of Attenuation
Setting in dB)
± (0.3 + 5% of Attenuation
Setting in dB)
± (0.3 + 6% of Attenuation
Setting in dB)
1.5:1 2.2:1
100
300
70
dB
dB
dB
dB
ns
ns
mV
Input Power for 1 dB Compression
Intermodulation Intercept Point (IP3)
Control Voltages
VS = +3 V
VS = +5 V
0.5–2.5 GHz
0.5–2.5 GHz
For Two-tone Input Power +5 dBm
VS = +3 V
VS = +5 V
0.5–2.5 GHz
0.5–2.5 GHz
VLow = 0 to 0.2 V @ 20 µA Max.
VHigh = +3 V @ 100 µA Max. to +5 V @ 200 µA Max.
VS = VHigh ± 0.2 V
+18 +21
+23 +27
+37 +43
+39 +45
dBm
dBm
dBm
dBm
1. All measurements made in a 50 system, unless otherwise specified.
2. Attenuation referenced to insertion loss.
3. Input/output.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email [email protected] www.alphaind.com
Specifications subject to change without notice. 10/00A
1





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