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參數(shù)資料
| 型號(hào)： | AA226-87 |
| 廠商： | Alpha Industries, Inc. |
| 英文描述： | GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz |
| 中文描述： | 砷化鎵集成電路4位數(shù)字衰減器1分貝LSB的陽(yáng)性對(duì)照0.5-2.5千兆赫 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 329K |
| 代理商： | AA226-87 |
Alpha Industries, Inc.
[781] 935-5150
Fax
[617] 824-4579
Email
sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 9/00A
1
GaAs IC 4 Bit Digital Attenuator
1 dB LSB Positive Control 0.5–2.5 GHz
Features
I
Attenuation 1 dB Steps to 15 dB
with High Accuracy
I
Single Positive Control (+3 to +5 V) for
Each Bit
I
Low DC Power Consumption
I
Small Low Cost TSSOP-16 Plastic
Package
TSSOP-16
AA226-87
0.173 (4.40 mm)
± 0.004 (0.10 mm)
0.197 (5.00 mm)
± 0.004 (0.10 mm)
0.252 (6.4 mm)
BSC
PIN 16
PIN 1
INDICATOR
PIN 1
0.006 (0.15 mm) MAX.
0.002 (0.05 mm) MIN.
0.047 (1.20 mm)
MAX.
0.035 (0.90 mm)
+ 0.006 (0.15 mm) /
-0.004 (-0.10 mm)
0.0256 (0.65 mm)
BSC
0.009 (0.22 mm) REF.
R 0.004 (0.09 mm)
MIN.
0.024
(0.60 mm)
± 0.006
(0.15 mm)
Description
The AA226-87 is a 4 bit, single positive control GaAs IC
FET digital attenuator.It requires DC blocking capacitors,
positive supply voltage (V
S
) and four individual positive bit
control voltages (V
1
–V
4
). The AA226-87 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 control circuits.
Parameter
1
Condition
Frequency
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
Min.
Typ.
1.3
1.7
2.3
15
Max.
1.7
2.2
2.6
Unit
dB
dB
dB
dB
Insertion Loss
Attenuation Range
Attenuation Accuracy
2
0.5–1.0 GHz
± (0.2 + 3% of
Attenuation Setting in dB)
± (0.3 + 4% of
Attenuation Setting in dB)
1.5:1
150
300
70
+20
+25
+24
+30
dB
1.0–2.5 GHz
dB
VSWR (I/O)
3
Switching Characteristics
4
0.5–2.5 GHz
2.0:1
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
V
S
= +3 V
V
S
= +5 V
For Two-tone Input Power +5 dBm
V
S
= +3 V
V
S
= +5 V
V
Low
= 0 to 0.2 V @ 20 μA Max.
V
High
= +3 V @ 100 μA Max. to +5 V @ 200 μA Max.
V
S
= V
High
± 0.2 V
ns
ns
mV
dBm
dBm
Input Power for 1 dB Compression
0.5–2.5 GHz
0.5–2.5 GHz
Intermodulation Intercept Point (IP3)
0.5–2.5 GHz
0.5–2.5 GHz
+43
+44
+49
+50
dBm
dBm
Control Voltages
Electrical Specifications at -40°C to +85°C (0, +5 V)
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.
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