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PDF ( 数据手册 , 数据表 ) AT-242TR

零件编号 AT-242TR
描述 Digital Attenuator/ 3 Bit/ Single Control 28 dB/ 0.5 - 2 GHz
制造商 Tyco Electronics
LOGO Tyco Electronics LOGO 


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AT-242TR 数据手册, 描述, 功能
Digital Attenuator, 3 Bit, Single Control, 28 dB, 0.5 - 2 GHz
AT-242
AT-242
Digital Attenuator, 3 Bit, Single Control
28 dB, 0.5 - 2 GHz
Features
Single Control CMOS Logic for each bit
Positive Supply +3 to +5 Volts
Low Cost SOIC-8 Plastic Package
Tape and Reel Packaging Available
SOIC-81
PIN 8
Oreintation
Mark
.1497/.1574
(3.80/4.00)
-B-
.2284/.2440
(5.80/6.20)
.010(.25) M B M
Description
M/A-COM’s AT-242 is a 3 bit, 4 dB step GaAs MMIC digital
attenuator in a low cost SOIC 8-lead surface mount plastic
package. The AT-242 is ideally suited for use where high
accuracy, very low power consumption and low intermodula-
tion products are required. Typical applications include radio,
cellular, wireless LANs, GPS equipment and automatic gain/
level control circuits.
PIN 1
.0532/.0688
(1.35/1.75)
.004(0.10)
.1890/.1968
(4.80/5.00)
-A-
.050(1.27)BSC.
.0040/.0098
(.10/.25)
-C-
CHAMFER
(OPTIONAL)
0°/80°
.013/.020 (8 PL)
(.33/.51)
.010(.25) M C A M B S
.016/.050
(0.40/1.27)
.0075/.0098
(.19/.25)
The AT-242 is fabricated with a GaAs MMIC using a mature
1-micron process. The process features full chip passivation for
increased performance and reliability.
1. Dimensions are in inches/mm.
Absolute Maximum Ratings1
Parameter
Absolute Maximum
Ordering Information
Maximum Input Power
50 MHz
+27 dBm
Part Number
Package
AT-242
AT-242TR
SOIC-8 Lead Plastic
Forward Tape and Reel1
1. If specific reel size is required, consult factory for part number
assignment.
500 - 2000 MHz
Supply Voltage
Control Voltage
Operating Temperature
Storage Temperature
+34 dBm
-1V, +8V
-1V, Vsupply +0.5V
-40°C to +85°C
-65°C to +150°C
Electrical Specifications: TA = +25°C1, 2
1. Exceeding any one or a combination of these limits may cause
permanent damage.
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Reference Insertion Loss
0.5 - 1.0 GHz
dB 1.4 1.6
0.5 - 2.0 GHz
dB 1.7 1.9
Attenuation Accuracy
0.5 - 1.0 GHz
± (0.15 dB +3% of Attenuation Setting in dB) dB
0.5 - 2.0 GHz
± (0.3 dB = +8% of Attenuation Setting in dB) dB
VSWR
0.5 - 1.0 GHz
1.3:1
±0.8
0.5 - 2.0 GHz
1.6:1
±1.5
P1dB
Trise, Tfall
Ton, Toff
Transients
IP2
IP3
Input Power (Vs = +5V) 900 MHz
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-band
Measured Relative to Input Power2
Measured Relative to Input Power2
dBm
µS
µS
mV
dBm
dBm
25
290
300
260
75
45
1. All measurements at 1 GHz 5Vdc in a 50system unless otherwise specified. The RF ports must be blocked out side of the package from
ground or any other voltage. Insertion Loss varies at 0.003 dB/°C.
2. For two-tone input power up to +10 dBm
V2.00
M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
3 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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