AT-260PIN [TE]
Digital Attenuator, 31 dB, 5-Bit DC . 2 GHz; 数字衰减31分贝， 5位DC 。 2 GHz的
| 型号： | AT-260PIN |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 31 dB, 5-Bit DC . 2 GHz |
| 文件： | 总2页 (文件大小：101K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 31 dB, 5-Bit
DC – 2 GHz
AT-260
V 2.00
Features
SSOP-20
●
Attenuation: 1-dB Steps to 31 dB
●
Temperature Stability: ± 0.15 dB from -40°C
to +85°C Typical
●
Ultra Low DC Power Consumption
●
Low Intermodulation Products: IP = 50 dBm
Low Cost SSOP 20 Plastic Package
3
●
●
Tape and Reel Packaging Available
Description
M/A-COM's AT-260 is a 5-bit, 1-dB step GaAs MMIC digi-
tal attenuator in a low cost SSOP-20 surface mount plastic
package. The AT-260 is ideally suited for use where high
accuracy, fast switching, very low power consumption and
low intermodulation products are required at a low cost.
Typical applications include radio and cellular equipment,
wireless LANS, GPS equipment and other Gain/Level
Control circuits.
Ordering Information
The AT-260 is fabricated with a monolithic GaAs MMIC
using a mature 1-micron process. The process features full
chip passivation for increased performance and reliability.
Part No.
Package
AT-260 PIN
AT-260TR
SSOP 20-Lead
Forward Tape & Reel*
Reverse Tape & Reel*
AT-260RTR
If specific reel size is requIred, consult factory for part number
assignment.
*
Electrical Specifications, T = 25°C
A
Parameter
Reference
Insertion Loss
Test Conditions1
Unit
dB
dB
dB
dB
Min.
Typ.
1.6
1.7
1.9
2.2
Max
1.8
1.9
2.2
2.5
DC – 0.1 GHz
DC – 0.5 GHz
DC – 1.0 GHz
DC – 2.0 GHz
Attenuation
Accuracy2
DC – 1.0 GHz
DC – 2.0 GHz
± (0.20 dB + 3% of Atten. Setting in dB) dB
± (0.30 dB + 3% of Atten.Setting in dB) dB
VSWR
(any state)
1.5:1
Trise, Tfall
Ton, Toff
Transients
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In Band
nS
nS
mV
8
15
2
One dB
Compression
Input Power
Input Power
0.05 GHz
0.5-2.0 GHz
dBm
dBm
20
27
IP
2
Measured Relative
to Input Power
0.05 GHz
0.5-2.0 GHz
dBm
dBm
45
60
(for two-tone input power up to +5 dBm)
IP
3
Measured Relative
to Input Power
0.05 GHz
0.5-2.0 GHz
dBm
dBm
34
50
(for two-tone input power up to +5 dBm)
1. All measurements at 1 GHz in a 50Wsystem, unless otherwise specified.
2.Attenuation accuracy specifications apply with negative bias control and low inductance grounding.
V 2.00
Absolute Maximum Ratings1
Functional Schematic
Parameter
Max. Input Power
0.05 GHz
Absolute Maximum
+27 dBm
0.5–2.0 GHz
+34 dBm
Control Voltage
Operating Temperature
Storage Temperature
+5V, –8.5V
–40˚C to +85°C
–65˚C to +150˚C
1. Operation of this device above any one of these parameters may
cause permanent damage.
Typical Performance
Pin Configuration
Pin No.
Description
VC1
Pin No. Description
1
2
11
12
13
14
15
16
17
18
19
20
RF1
GND
GND
GND
GND
GND
GND
GND
GND
RF2
VC1
3
VC2
4
VC2
5
VC3
6
VC3
7
VC4
8
VC4
9
NC
10
VC5
Truth Table
Control Inputs
VC5 VC4 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Attenuation
(dB)
1
0
1
1
1
1
0
1
1
0
1
1
1
0
0
0
1
0
0
0
1
1
1
1
0
1
1
0
0
0
0
1
0
0
1
1
1
1
1
0
1
0
0
0
0
0
1
0
1
1
1
1
1
1
0
0
0
0
0
0
0
1
1
Reference
1 dB
2 dB
4 dB
8 dB
16 dB
31 dB
0 = VIN Low = 0 V = 0 to -0.2 V @ 20 µA maximum
1 = VIN High = -5 V @ 20 µA typical to -8 V @ 200 µA maximum
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