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參數資料
| 型號： | AA230-24 |
| 元件分類： | 衰減器 |
| 英文描述： | 0.3 MHz - 2000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.3 dB INSERTION LOSS-MAX |
| 封裝： | PLASTIC, SOIC-14 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 38K |
| 代理商： | AA230-24 |
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
1
Specifications subject to change without notice. 10/99A
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 3 Bit Digital Attenuator
4 dB LSB DC–2 GHz
Features
I Attenuation in 4 dB steps to 28 dB with
High Accuracy
I Low Cost SOIC-14 Plastic Package
I Low DC Power Consumption
AA230-24
(Previously AD230-24)*
PIN 14
0.050
(1.27 mm) BSC
PIN 1
INDICATOR
0.158 (4.01 mm)
0.150 (3.81 mm)
0.050 (1.27 mm)
0.016 (0.40 mm)
0.244
(6.20 mm)
0.228
(5.80 mm)
0.020 (0.51 mm)
0.013 (0.33 mm)
0.344 (8.75 mm)
0.337 (8.55 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.049 (1.24 mm)
0.016 (0.41 mm)
0.016 MAX.
(0.41 mm)
x 45
CHAMFER
0.0098 (0.25 mm)
0.0075 (0.19 mm)
8 MAX.
Description
The AD230-24 is an IC FET Digital Attenuator consisting
of three monolithic attenuators with LSB of 4 dB and a total
attenuation of 28 dB with all attenuators connected.
Attenuators are switched with -5 and 0 V.
The AD230-24 is particularly 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
1.1
1.4
dB
DC–0.5 GHz
1.2
1.5
dB
DC–1.0 GHz
1.3
1.7
dB
DC–2.0 GHz
1.9
2.3
dB
Attenuation Range
28
dB
Attenuation Accuracy4
DC–1.0 GHz
± (0.2 + 3% of
dB
Attenuation Setting in dB)
DC–2.0 GHz
± (0.4 + 5% of
dB
Attenuation Setting in dB)
VSWR (I/O)
DC–2.0 GHz
1.3:1
1.5:1
Electrical Specifications at 25°C (0, -5 V)
SOIC-14
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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