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AT90-1233_1

更新时间： 2024-11-25 04:33:19
品牌 Logo 应用领域
泰科 - TE 驱动衰减器
页数 文件大小 规格书
4页 217K
描述
Digital Attenuator, 30dB, 4-Bit, TTL Driver DC - 2.5 GHz

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AT90-1233_1 数据手册

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Digital Attenuator, 30 dB, 4-Bit, T T L Driv er  
DC - 2 .5 G H z  
AT 9 0-1 2 33  
V 6  
Features  
CSP-1  
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Attenuation: 2 dB Steps to 30 dB  
Single Positive Supply  
Contains Internal DC to DC Converter  
Small Footprint, JEDEC Package  
Integral TTL Driver  
50 Ohm Impedance  
Test Boards Available  
Tape and Reel Packaging Available  
Description  
M/A-COM‘s AT90-1233 is a GaAs FET 4-Bit digital  
attenuator with integral driver. Step size is 2 dB  
providing a 30 dB attenuation range. This device is  
in an FQFP-N plastic surface mount package. The  
AT90-1233 is suited for single supply applications  
where accuracy, fast speed, low power consumption  
and low costs are required. For dual supply designs  
without switching noise, use AT90-0233.  
Ordering Information  
Pin Configuration  
Part Number  
Package  
Pin No.  
Function  
Pin No.  
Function  
AT90-1233  
Bulk Packaging  
1
2
GND  
C16  
C8  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
NC  
NC  
AT90-1233TR  
AT90-1233-TB  
Tape and Reel (1K Reel)  
Units Mounted on Test Board  
3
+Vcc2  
4
C4  
NC  
Note: Reference Application Note M513 for reel size  
information.  
5
C2  
Cp4  
6
GND  
GND  
NC  
NC  
Truth Table  
7
Cp4  
8
NC  
C16  
C6  
C4  
C2  
Attenuation  
9
NC  
-Vee3  
GND  
RF2  
GND  
NC1  
0
0
0
0
Loss, Reference  
10  
11  
12  
13  
14  
15  
16  
NC1  
GND  
RF1  
GND  
NC  
0
0
0
1
1
0
0
1
0
1
0
1
0
0
1
1
0
0
0
1
2.0 dB  
4.0 dB  
8.0 dB  
16.0 dB  
30.0 dB  
-Vee 3,5  
NC  
NC  
NC  
+Vcc 2,6  
1. Pins 10 and 29 must be isolated.  
2. Pin 19 must be connected to Pin 32.  
3. Pin 25 must connect to Pin 30.  
0 = TTL Low; 1 = TTL High  
4. A .01 µF cap must be connected between Pins 21 and 23.  
5. -VEE is produced internally and requires a .1 µF cap to GND.  
Generated noise is typical of switching DC-DC Converters.  
6. +VCC requires a .1 µF cap to GND.  
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the  
product(s) or information contained herein without notice. M/A-COM makes  
no warranty, representation or guarantee regarding the suitability of its  
products for any particular purpose, nor does M/A-COM assume any liability  
whatsoever arising out of the use or application of any product(s) or  
information.  
• North America Tel: 800.366.2266 / Fax: 978.366.2266  
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300  
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298  
Visit www.macom.com for additional data sheets and product information.  
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