DEMO-ATF-5X1P8 Datasheet, PDF (21/23 Pages) Broadcom Corporation. – High Linearity Enhancement Mode[ Pseudomorphic HEMT in 2x2 mm2 LPCC[3] Package

Thus, for reliable operation of ATF-521P8 and extended
MTBF, it is recommended to use some form of thermal
heatsinking. This may include any or all of the following
suggestions:
• Maximize vias underneath and around package;
• Maximize exposed surface metal;
• Use 1 oz or greater copper clad;
• Minimize board thickness;
• Metal heat sinks or extrusions;
• Fans or forced air;
• Mount PCB to Chassis.
Summary
A high linearity Tx driver ­amplifier for WCDMA has been
presented and designed using Agilent’s ATF-521P8. This
includes RF, DC and good thermal dissipation practices
for reliable lifetime operation. A summary of the typical
performance for ATF-521P8 demoboard at 2140 MHz is
as follows:
Demo Board Results at 2140 MHz
Gain
16.5 dB
OIP3
41.2 dBm
ACLR -58 dBc
P1dB
24.8 dBm
NF
1.55 dB
References
[1] Ward, A. (2001) Avago Technologies ATF‑54143 Low Noise
Enhancement Mode Pseudomorphic HEMT in a Surface Mount Plastic
Package, 2001 [Internet], Available from:
<http://www.avagotech.com>
[2] Biasing Circuits and ­ Considerations for GaAs MESFET
Power Amplifiers, 2001 [Internet], Available from:
<http://www.rf-solutions.com/pdf/AN‑0002_ajp.pdf>
[Accessed 22 August, 2002]
Device Models
Refer to Avago Technologies' Web Site:
www.avagotech.com
Ordering Information
Part Number
No. of Devices Container
ATF-521P8-TR1
ATF-521P8-TR2
ATF-521P8-BLK
3000
10000
100
7” Reel
13”Reel
antistatic bag
2 x 2 LPCC (JEDEC DFP-N) Package Dimensions
D1
P
pin1
pin1
1
2
E1
e
R
3
4
L
b
Bottom View
D
2PX
Top View
8
7
E
6
5
A ^A1
A2
End View
A
End View
DIMENSIONS
SYMBOL
A
A1
A2
b
D
D1
E
E1
e
P
L
MIN.
0.70
0
0.225
1.9
0.65
1.9
1.45
0.2
0.35
NOM.
0.75
0.02
0.203 REF
0.25
2.0
0.80
2.0
1.6
0.50 BSC
0.25
0.4
MAX.
0.80
0.05
0.275
2.1
0.95
2.1
1.75
0.3
0.45
DIMENSIONS ARE IN MILLIMETERS
21