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参数资料
| 型号： | AT-246PIN |
| 元件分类： | 衰减器 |
| 英文描述： | 0 MHz - 3000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1 dB INSERTION LOSS-MAX |
| 封装： | PLASTIC, MSOP-8 |
| 文件页数： | 1/2页 |
| 文件大小： | 66K |
| 代理商： | AT-246PIN |
Digital Attenuator, 1 Bit, Variable Step, 10 - 20 dB, DC - 3000 MHz
AT-246
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.
V2.00
Features
Variable Step (10 - 20 dB) with an External Resistor
Matched Input and Output
Low Intermodulation Product: +53 dBm IP
3
Low DC Power Consumption: 50 W
Low Cost, Low Profile MSOP 8 Plastic Package
Tape and Reel Packaging Available
MSOP-8
1
Electrical Specifications: T
A = +25°C
1, 2
Digital Attenuator, 1 Bit, Variable Step
10 - 20 dB, DC - 3000 MHz
AT-246
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Reference Insertion Loss
DC - 3.0 GHz
dB
0.8
1.0
Attenuation Flatness
DC - 1.5 GHz
dB
±0.5
±1.0
1.5 - 3.0 GHz
dB
±1.5
±2.0
VSWR
DC - 3.0 GHz
1.3:1
1 dB Compression
Input Power
50 MHz
dBm
24
Input Power
500 MHz
dBm
30
T
rise, Tfall
10% to 90% RF, 90% to 10% RF
S
20
T
on, Toff
50% Control to 90% RF, Control to 10% RF
S
23
Transients
In-band
mV
25
IP
2
Measured Relative
50 MHz
dBm
54
to Input Power
2
500 MHz
dBm
73
IP
3
Measured Relative
50 MHz
dBm
45
to Input Power
2
500 MHz
dBm
55
Description
M/A-COM’s AT-246 is a GaAs MMIC matched 1 bit attenuator
in a low cost plastic MSOP-8 package. It is designed to be a
building block for a single step attenuator by placing a resistor
across RF1-RF2. Attenuation levels of 10 to 20 dB with flat
response are achievable from DC to 3 GHz. The AT-246 is
ideally suited for circuits where fast switching, very low power
consumption and low intermodulation products are required.
Typical applications include gain/level and sensitivity control in
radio and cellular equipment, wireless LAN’s, GPS equipment
and other gain/level control circuits.
The AT-246 is fabricated using a mature 1-micron gate length
GaAs MESFET process. The process features full chip passiva-
tion for increased performance and reliability.
Ordering Information
Part Number
Package
AT-246 PIN
MSOP-8 Lead Plastic
AT-246TR
Forward Tape and Reel
1
1. If specific reel size is required, consult factory for part number
assignment.
1.
All measurements in a 50
system unless otherwise specified. Loss varies at 0.003 dB/°C.
2.
For two-tone Input Power up to +5 dBm.
ID P I N
0.19 3
.010
R
0.11 8
.020
0.02 56
0.11 8
12 °
4X
0.03 4
0.04 0
0.00 8
0.01 3
12 °
4X
0.00 7
0.02 15
3°
1.
Dimensions are in inches.
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