AT-226 [TE]
Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz; 数字衰减器， 4位单控， 15分贝0.5 - 2.0 GHz的
| 型号： | AT-226 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz |
| 文件： | 总4页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AT-226
Digital Attenuator, 4 Bit, Single Control, 15 dB
0.5 - 2.0 GHz
Features
TSSOP-16
•
•
•
•
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
PIN 16
.037
.033
0,95
0,85
.256
.246
6,5
Description
6,25
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.
.177
.169
4,5
PIN 1
.169
4,5
4,29
BSC
.201
.193
5,11
4,9
The AT-226 is fabricated using mature 1 micron GaAs MESFET
process. The process features full chip passivation for increased
performance and reliability.
PIN Configuration
Pin No.
Function
GND
VC1
Description
RF Ground
Control 1
Control 2
Control 3
Control 4
RF in/out
RF Ground
RF in/out
1,2,7,8
Functional Schematic1,2
3
4
VC2
5
VC3
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
6
VC4
P IN 1 6
9
10,11,12,13,14,15
16
RF2
GND
RF1
Truth Table1, 2, 3
8
4
2
1
VC1
VC2
VC3
VC4
1
Attenuation (dB)
Reference I.L.
1
1
1
1
1
1
1
1
0
0
1
1
2
1
0
1
1
4
0
1
1
1
8
0
0
0
0
15
P IN
1
1. Logic 0 = 0 + 0.2 V
G N D G N D V C 1 V C 2 V C 3 V C 4 G N D G N D
2. Logic 1 = +5 V @ 30 µA max. current total
3. VS = +5 V
1. Required external blocking caps shown
2. VS can be applied at RF1 or RF2 using a 10KΩ or greater pull-up
resistor.
V3.00
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.
Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz
AT-226
Electrical Specifications at TA = +25°C
Parameter
Reference Insertion Loss
Test Conditions
Units
dB
dB
Min.
Typ.
1.3
1.0
Max.
1.6
1.3
0.5 - 1.0 GHz
1.0 - 2.0 GHz
0.5 - 1.0 GHz
1.0-2.0 GHz
0.5 - 2.0 GHz
±(0.25 dB + 5% of Attenuation setting in dB) dB
±(0.4 dB + 5% of Attenuation setting in dB) dB
Attenuation Accuracy
VSWR
Trise,Tfall
Ton, Toff
P1dB
1.3:1
2.5
1.0
24
1.8:1
µs
µs
dBm
dBm
Input Power
>0.5 GHz
>0.5GHz
IP2
Measured Relative to Input Power
Two Tone input up to 5dBm, 5MHz
Spacing
80
IP3
Measured Relative to Input Power
Two Tone input up to 5dBm, 5MHz
Spacing
>0.5GHz
dBm
47
Typical Performance Curves
Relative Attenuation
Insertion Loss
16
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
14
12
10
8
+85°C
-40°C
6
+25°C
4
2
0
0.5
1
1.5
2
2.5
3
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
FREQUENCY (GHz)
Input VSWR1
Output VSWR1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
15dB
TWC* for all states
15dB
TWC* for all states
2, 4dB
2.5
2, 4dB
0.5
1
1.5
FREQUENCY (GHz)
1. TWC = Typical worst case over all states
2
3
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
1. TWC = Typical worst case over all states
V3.00
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.
Digital Attenuator, 4 Bit, Single Control, 15 dB 0.5 - 2.0 GHz
AT-226
Typical Performance Curves (Cont’d)
Delta ATT +25°C to -40°C
Attenuation Accuracy vs Frequency
0.15
0.6
0.4
0.2
0
0.1
8dB
0.05
0
2dB
-0.05
-0.1
-0.15
-0.2
-0.25
4dB
1dB
-0.2
-0.4
-0.6
1dB
2dB
4dB
8dB
2
15dB
15dB
0.5
1
1.5
2.5
3
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
FREQUENCY (GHz)
Absolute Maximum Ratings1
Delta ATT +25°C to+85°C
0.25
0.2
15dB
Parameter
Maximum Ratings
0.15
0.1
Maximum Input Power
50 MHz
1dB
+27 dBm
+34 dBm
0.05
0
500 - 2000 MHz
Control Voltage
Operating Temperature
Storage Temperature
8dB
2dB
+8 V, -1.0 V
-40°C to +85°C
-65°C to +150ºC
-0.05
-0.1
4dB
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
1. Exceeding these limits may cause permanent damage.
V3.00
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.
V3.00
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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