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PDF AT001D6-25 Data sheet ( Hoja de datos )
| Número de pieza | AT001D6-25 | |
| Descripción | GaAs IC 4 Bit Digital Attenuator 3 dB LSB DC-1 GHz | |
| Fabricantes | Alpha Industries | |
| Logotipo |  |
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GaAs IC 4 Bit Digital Attenuator
3 dB LSB DC–1 GHz
Features
s Attenuation in 3 dB Steps to 45 dB
s Low DC Power Consumption
s Low Cost SOIC-16 Plastic Package
Description
The AT001D6-25 is an IC FET digital attenuator consisting
of four monolithic attenuators with LSB of 3 dB and a total
attenuation of 45 dB with all attenuators connected.
The attenuator is packaged in the plastic 16 lead surface
mount package for low cost commercial cellular radio
applications.
SOIC-16
PIN 16
AT001D6-25
0.050
(1.27 mm) BSC
PIN 1
INDICATOR
0.244 (6.20 mm)
0.228 (5.80 mm)
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 Range4
VSWR (I/O)
Frequency2
DC–0.5 GHz
DC–1.0 GHz
DC–1.0 GHz
DC–0.5 GHz
DC–1.0 GHz
Min.
Typ. Max.
2.5 3.2
3.5 4.0
10% or ± 0.5 dB
Whichever is Greater
12% for 45 dB Attenuation
1.4:1
1.6:1
1.6:1
1.8:1
Unit
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
Input Power for 1 dB Compression
0.50–1.0 GHz
0.05 GHz
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +13 dBm
0.50–1.0 GHz
0.05 GHz
Control Voltages
VLow = 0 to -0.2 V @ 20 µA Max.
VHigh = -5 V @ 50 µA to -8 V at 200 µA Max.
1. All measurements made in a 50 Ω 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.
Min.
Typ.
10
20
20
+24
+14
+43
+32
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 3/99A
1
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