鈥?/div>
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
TSSOP-16
1
PN 16
25
24
6,0
6,2
.03
03
0,9
0,8
PN 1
.025
0,6
.17
.16
4,0
4,2
Description
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.
The AT-264 is fabricated using a mature 1 micron GaAs
MESFET process. The process features full chip passivation
for increased performance and reliability.
20
19
5,1
4,0
1. Dimensions are in inches/mm.
Ordering Information
Part Number
AT-264
AT-264TR
Package
TSSOP 16-Lead Plastic
Tape and Reel
1
1. Refer to Application Note M513 for reel size information.
Electrical Specifications: T
A
= +25擄C
Parameter
Reference Insertion Loss
Attenuation Accuracy
VSWR
T
rise
,
T
fall
T
on
,
T
off
Transients
1 dB Compression
IP
2
IP
3
1.
2.
1
Test Conditions
0.5 - 1.0 GHz
0.5 - 2.0 GHz
0.5 - 1.0 GHz
0.5 - 2.0 GHz
1.0 - 1.5 GHz
0.5 - 2.0 GHz
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
in Band
Input Power
Input Power
Measured Relative to
2
Input Power
Measured Relative to
2
Input Power
0.5 GHz
0.9 GHz
0.5 GHz
0.5 - 2.0 GHz
0.5 GHz
0.5 - 2.0 GHz
Units
Min.
Typ.
Max.
dB
1.6
1.8
dB
1.8
2.0
鹵(0.15 dB + 5% of Attenuation setting in dB) dB
鹵(0.3 dB + 5% of Attenuation setting in dB) dB
1.5:1
1.9:1
3
碌S
3
碌S
75
mV
dBm
25
dBm
25
dBm
65
dBm
71
dBm
43
dBm
47
All measurements at 900 MHz in a 50鈩?system unless otherwise specified. Loss varies at 0.003 dB/擄C.
For two-tone Input Power up to +5 dBm.
V3.00
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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