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PDF AA110-85 Data sheet ( Hoja de datos )
| Número de pieza | AA110-85 | |
| Descripción | GaAs IC 5 Bit Digital Attenuator with Driver 1 dB LSB Positive Control DC-2 GHz | |
| Fabricantes | Alpha Industries | |
| Logotipo |  |
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GaAs IC 5 Bit Digital Attenuator with Driver
1 dB LSB Positive Control DC–2 GHz
Preliminary
AA110-85
Features
s Attenuation 1 dB Steps to 31 dB With
High Accuracy
s Single Positive Control (+5 V) for Each Bit
s Low DC Power Consumption
s CMOS Integrated Silicon Driver
s Designed for Use at IF Frequencies
Description
The AA110-85 is a 5 bit, single positive control GaAs IC
FET digital attenuator with driver. It is particularly suited
at IF frequencies where high attenuation accuracy, low
insertion loss and low intermodulation products are
required. Typical applications include base station,
wireless data, broadband and wireless local loop gain
control circuits.
SSOP-20
PIN 20
0.209 (5.30 mm)
±0.012 (0.30 mm)
0.307 (7.80 mm)
±0.016 (0.307 mm)
PIN 1
INDICATOR
PIN 1
0.283 (7.20 mm)
±0.012 (0.30 mm)
0.0256
(0.65 mm) 0.078
0.069
(1.75 mm)
BSC
(2.00 mm)
MAX.
±0.004
(0.10 mm)
0.010 (0.25 mm)
0.004 (0.090 mm)
8˚ MAX.
0.012
(0.30 mm)
REF.
0.008 (0.20 mm) MAX.
0.002 (0.05 mm) MIN.
0.030 (0.75 mm)
±0.008 (0.10 mm)
Electrical Specifications at 25°C (0, +5 V)
Insertion Loss2
Parameter1
Attenuation Range
Attenuation Accuracy3
VSWR (I/O)4
Frequency
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–0.5 GHz
DC–1.0 GHz
DC–2.0 GHz
DC–2.0 GHz
Min.
Typ. Max.
1.4 1.7
1.7 2.1
2.2 2.6
31
± (0.2 + 2% of
Attenuation Setting in dB)
± (0.25 + 3% of
Attenuation Setting in dB)
± (0.4 + 6% of
Attenuation Setting in dB)
1.5:1 1.8:1
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.
30
50
50
Max.
Unit
ns
ns
mV
Input Power for 1 dB Compression
VCC = +5 V
0.5–2.0 GHz
0.05 GHz
+25 +29
+18 +22
dBm
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +5 dBm
0.5–2.0 GHz
+42 +48
dBm
VCC = +5 V
0.05 GHz
+30 +36
dBm
Supply Voltage
VCC = 5 V @ 700 µA Typ.
Control Voltages
CTL1, CTL2, CTL4, CTL8, CTL16, Low = 0 to 0.8 V @ 20 µA Typ.
CTL1, CTL2, CTL4, CTL8, CTL16, High = 3.5 to 5.0 V @ 20 µA Typ.
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Attenuation referenced to insertion loss.
4. Input/output.
5. 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. 2/01A
1
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