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10DBSTEP

更新时间： 2024-10-13 23:17:15
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其他 - ETC 衰减器
页数 文件大小 规格书
2页 70K
描述
Digital Attenuator， 1 Bit， 10 dB Step DC2.0 GHz

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 浏览型号10DBSTEP的Datasheet PDF文件第2页 
AT-266  
Digital Attenuator, 1 Bit, 10 dB Step  
DC - 2.0 GHz  
SOT-25 Plastic Package  
Features  
•
•
•
Single 10 dB Step  
Low Loss 0.3dB Typ. @ 900 MHz  
Low Cost Plastic SOT25 Package  
.114 ± .008  
2,9 ± 0,2  
.075 ± .008  
1,90 ± 0,2  
+ .008  
.043  
- .004  
+ 0,2  
- 0,1  
1,10  
Description  
M/A-COM’s AT-266 is a 1 bit, 10 dB step GaAs MMIC Digital  
Attenuator in a low cost SOT-25 surface mount plastic package.  
The AT-266 is ideally suited for use where high accuracy, very  
low power consumption and low intermodulation products are  
required. Typical applications include radio, wireless LANs,  
GPS equipment and other gain/level control circuits.  
.110 ± .008  
2,80 ± 0,2  
.063 ± .004  
1,6 ± 0,1  
.008 MIN  
0,20 MIN  
Pin 1  
+ .004  
.006  
0,15  
- .002  
+ 0,1  
- 0,05  
.002 ± .002  
0,05 ± 0,05  
+ .004  
The AT-266 is a GaAs MMIC using a mature 1 micron process.  
The process features full chip passivation for increased perfor-  
mance and reliability.  
.031  
0,80  
- .007  
+ 0,1  
- 0,18  
+ .004  
- .002  
+ 0,1  
.016  
0,40  
- 0,05  
Truth Table  
MODE (Control)  
Postive1  
Pin Configuration  
V1  
V2  
Atten.  
PIN No.  
Function  
Description  
RF11  
GND1  
RF In/Out  
0 ± 0.2V  
+3 to +8V  
0 ± 0.2V  
10 dB  
IL  
1
2
+3 to +8V  
RF Ground  
Postive / Negative1,2  
Negative3  
-VC ± 0.2 V  
+ VC  
+VC  
10 dB  
IL  
3
4
5
RF21  
RF In/Out  
-VC ± 0.2V  
V1  
Control Voltage  
Control Voltage  
0 ± 0.2V  
-3V to -8V  
0 ± 0.2V  
IL  
V2  
-3V to -8V  
10 dB  
1. External DC blocking capactors are required as noted1  
2. | -VC | + VC ≤ 8 V.  
3. If negative control is used, DC blocking capacitors are not  
required on RF Ports.  
1. Series Capacitors on PINs1, 3 and 5, Shunt Capacitor on PIN 2  
are required for Postive Control. 39pF capacitors used for pos-  
tive control performance curves.  
Electrical Specifications TA = 25°C1  
Parameter  
Insertion Loss  
Test Conditions  
Units  
dB  
Min.  
Typ.  
0.3  
0.5  
10  
Max.  
0.45  
0.7  
0 - 1 GHz  
Insertion Loss  
Attenuation  
1 - 2 GHz  
dB  
0 - 1 GHz  
dB  
±0.4  
±0.5  
1.5:1  
1 - 2 GHz  
dB  
10  
VSWR  
IP3  
0 - 2 GHz  
1.4:1  
50  
2 Tone @ 0 dBm, 5 MHz spacing  
1 GHz  
dBm  
dBm  
ns  
42  
23  
P1dB  
28  
10% to 90% RF, 90% to 10% RF  
50% Control to 90% RF, 50% Control to 10% RF  
In Band  
5
20  
25  
10  
Trise, Tfall  
Ton, Toff  
Transients  
ns  
10  
mV  
6
V2.00  
1. All measurements at 1.0 GHz, -3 Volts control unless otherwise specified.  
M/A-COM Division of AMP Incorporated Q North America: Tel. (800) 366-2266, Fax (800) 618-8883 Q Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087  
Q 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.  
12

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