Digital Attenuator, 4 Bit, Single Control, 30 dB, 0.5 - 2.0 GHz
AT-264
AT-264
Digital Attenuator, 4 Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Features
TSSOP-161
•
•
•
•
Single Control CMOS logic for each bit
Attenuation 2 dB steps to 30 dB
Low DC Power Consumtion: 50 uW
Low Cost Plastic TSSOP-16 Package
PN 16
25
24
6,0
6,2
.03
03
0,9
0,8
.17
.16
4,0
4,2
PN 1
.025
0,6
20
Description
19
5,1
4,0
The M/A-COM AT-264 is a 4 bit, 2 dB step GaAs MMIC
digital attenuator in a low cost TSSOP-16 surface mount plastic
package. The AT-264 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 other gain/level
control circuits.
1. Dimensions are in inches/mm.
Ordering Information
Part Number
Package
The AT-264 is fabricated using a mature 1 micron GaAs
MESFET process. The process features full chip passivation
for increased performance and reliability.
AT-264
TSSOP 16-Lead Plastic
Tape and Reel1
AT-264TR
1. Refer to Application Note M513 for reel size information.
Electrical Specifications: TA = +25°C1
Parameter
Reference Insertion Loss 0.5 - 1.0 GHz
0.5 - 2.0 GHz
Test Conditions
Units
dB
dB
Min.
Typ.
1.6
1.8
Max.
1.8
2.0
Attenuation Accuracy
0.5 - 1.0 GHz
0.5 - 2.0 GHz
1.0 - 1.5 GHz
0.5 - 2.0 GHz
±(0.15 dB + 5% of Attenuation setting in dB) dB
±(0.3 dB + 5% of Attenuation setting in dB) dB
VSWR
1.5:1
1.9:1
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
in Band
3
3
75
Trise, Tfall
Ton, Toff
Transients
µS
µS
mV
1 dB Compression
Input Power
Input Power
0.5 GHz
0.9 GHz
0.5 GHz
dBm
dBm
dBm
dBm
dBm
dBm
25
25
65
71
43
47
IP2
IP3
Measured Relative to
Input Power2
0.5 - 2.0 GHz
0.5 GHz
0.5 - 2.0 GHz
Measured Relative to
Input Power2
1. All measurements at 900 MHz in a 50Ω system unless otherwise specified. Loss varies at 0.003 dB/°C.
2. For two-tone Input Power up to +5 dBm.
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.