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參數(shù)資料
| 型號： | AT-226 |
| 英文描述： | Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz |
| 中文描述： | 數(shù)字衰減器，4位，15分貝0.5單控制- 2.0吉赫 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 99K |
| 代理商： | AT-226 |
Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz
AT-226
AT-226
M/A-COM Division of AMP Incorporated North America: Tel. (800) 366-2266, Fax (800) 618-8883 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V3.00
Truth Table
VC1
1
1
1
1
0
0
1, 2, 3
Features
Single Control CMOS logic for each bit
Attenuation: 1 dB steps to 15 dB
Low DC Power Consumtion: 50 uW
Low Cost Plastic TSSOP - 16 Package
Description
The M/A-COM AT-226 is a 4 bit, 1 dB step GaAs MMIC digital
attenuator in a low cost TSSOP-16 surface mount plastic package.
The AT-226 is ideally suited for use where high accuracy, very
low power consumption and low intermodulation products are
required. Typical applications include radio, cellular, wireless
LANs, GPS equipment and other gain/level control circuits.
The AT-226 is fabricated using mature 1 micron GaAs MESFET
process. The process features full chip passivation for increased
performance and reliability.
TSSOP-16
Digital Attenuator, 4 Bit, Single Control, 15 dB
0.5 - 2.0 GHz
.037
.033
0,95
0,85
.177
.169
4,5
4,29
.256
.246
6,5
6,25
.169
4,5
.201
.193
5,11
4,9
PIN 16
PIN 1
BSC
PIN Configuration
Pin No.
1,2,7,8
3
4
5
6
9
10,11,12,13,14,15
16
Function
GND
VC1
VC2
VC3
VC4
RF2
GND
RF1
Description
RF Ground
Control 1
Control 2
Control 3
Control 4
RF in/out
RF Ground
RF in/out
G N D G N D VC 1 V C 2 VC 3 V C 4 G N D G N D
P IN 16
P IN 1
8
4
2
1
V s
R F 1 G N D G N D G N D G N D G N D G N D R F 2
Functional Schematic
1,2
1. Required external blocking caps shown
2. V
can be applied at RF1 or RF2 using a 10K
or greater pull-up
resistor.
VC2
1
1
1
0
1
0
VC3
1
1
0
1
1
0
VC4
1
0
1
1
1
0
Attenuation (dB)
Reference I.L.
1
2
4
8
15
1. Logic 0 = 0 + 0.2 V
2. Logic 1 = +5 V @ 30
μ
A max. current total
3. V
S
= +5 V
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