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参数资料
| 型号： | AA320-25 |
| 厂商： | SKYWORKS SOLUTIONS INC |
| 元件分类： | 衰减器 |
| 英文描述： | 0 MHz - 2000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.5 dB INSERTION LOSS-MAX |
| 封装： | PLASTIC, SOIC-16 |
| 文件页数： | 1/2页 |
| 文件大小： | 426K |
| 代理商： | AA320-25 |
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 12/99A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics5
Rise, Fall (10/90% or 90/10% RF)
15
ns
On, Off (50% CTL to 90/10% RF)
25
ns
Video Feedthru
25
mV
Input Power for 1 dB Compression
0.50–2.0 GHz
+28
dBm
0.05 GHz
+22
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +5 dBm
0.50–2.0 GHz
+48
dBm
0.05 GHz
+38
dBm
Control Voltages
VLow = 0 to -0.2 V @ 20 A Max.
VHigh = -5 V @ 50 A Typ. to -8 V @ 200 A Max.
GaAs IC 4 Bit Digital Attenuator
2 dB LSB DC–2 GHz
Features
■ Attenuation in 2 dB Steps to 30 dB with
High Accuracy
■ Low Cost SOIC-16 Plastic Package
■ Low DC Power Consumption
AA320-25
(Previously AD320-25)*
0.158 (4.00 mm)
0.150 (3.80 mm)
0.068
(1.73 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45
CHAMFER
0.020 (0.51 mm)
0.013 (0.33 mm)
0.050
(1.27 mm) BSC
PIN 16
PIN 1
INDICATOR
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)
8 MAX.
Description
The AA320-25 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.
This unit is a pin for pin replacement for the AT001D4-25
with improved RF performance extended to 2 GHz.
The AA320-25 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.
Operating Characteristics at 25°C (0, -5 V)
Parameter1
Frequency2
Min.
Typ.
Max.
Unit
Insertion Loss3
DC–0.1 GHz
1.2
1.4
dB
DC–0.5 GHz
1.4
1.7
dB
DC–1.0 GHz
1.5
1.8
dB
DC–2.0 GHz
2.0
2.5
dB
Attenuation Range
30
dB
Attenuation Accuracy4
DC–1.0 GHz
± (0.2 + 3% of Attenuation
dB
Setting in dB)
DC–2.0 GHz
± (0.3 + 3% of Attenuation
dB
Setting in dB)
VSWR (I/O)
DC–1.0 GHz
1.4:1
1.6:1
DC–2.0 GHz
1.6:1
2.0:1
Electrical Specifications at 25°C (0, -5 V)
SOIC-16
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”.
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