DC2.0GHZ [ETC]
Digital Attenuator， 1 Bit， 10 dB Step DC2.0 GHz ; 数字衰减器， 1位10分贝步DC2.0 GHz的\n
| 型号： | DC2.0GHZ |
| 厂家： | 
ETC |
| 描述： | Digital Attenuator， 1 Bit， 10 dB Step DC2.0 GHz
|
| 文件： | 总2页 (文件大小：70K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
Digital Attenuator, 1 Bit, 10 dB Step, DC - 2.0 GHz
AT-266
Absolute Maximum Ratings1
Ordering Information
Parameter
Absolute Maximum
Part Number
Package
Max. Input Power
AT-266
SOT-25 Plastic Package
Forward Tape and Reel1
Reverse Tape and Reel1
50 MHz
+27 dBm
+34 dBm
AT-266TR
500 - 2000 MHz
AT-266RTR
Control Voltage
+5V, -8.5V
Operating Temperature
Storage Temperature
-40°C to +85°C
-65°C to +150°C
1. Refer to Application Note M513 for reel size information.
1. Operation of this device above any one of these parameters may
cause permanent damage.
Typical Performance Curves
Insertion Loss vs. Frequency Over
Temperature (Postive Control)
Insertion Loss vs. Frequency Over
Temperature (Negative Control)
1
1
0.9
0.8
0.9
0.8
0.7
0.7
+85°C
0.6
+25°C
-40°C
0.6
0.5
0.4
0.3
0.2
0.1
0
+25°C
0.5
0.4
0.3
0.2
0.1
0
+85°C
-40°C
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
FREGUENCY (GHz)
FREGUENCY (GHz)
Relative Attenuation vs. Frequency Over
Temperature (Posative Control)
Relative Attenuation vs. Frequency Over
Temperature (Negative Control)
11
10.8
10.6
10.4
10.2
10
11
10.8
10.6
10.4
10.2
10
-40°C
-40°C
+25°C
+25°C
9.8
9.6
9.4
9.2
9
9.8
9.6
+85°C
9.4
+85°C
9.2
9
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
FREGUENCY (GHz)
FREGUENCY (GHz)
Return Loss vs. Frequency
(Reference State)
Return Loss vs. Frequency
(10 dB State)
40
35
30
25
20
15
10
5
35
30
25
20
15
10
5
Negative Control
Negative Control
Positive Control
Positive Control
0
0
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
FREQUENCY (GHz)
V2.00
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.
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