ATF-521P8 Avago Technologies, ATF-521P8 Datasheet - Page 21

• Manufacturer Part Number: ATF-521P8
• Description: Atf-521p8 Gaas Field Effect
• Manufacturer: Avago Technologies

21
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
OIP3
ACLR
P1dB
NF
2 x 2 LPCC (JEDEC DFP-N) Package Dimensions
DIMENSIONS ARE IN MILLIMETERS
E1
A
SYMBOL
A1
A2
D1
E1
A
D
A1
b
E
e
L
0.225
MIN.
0.70
0.65
1.45
1.9
1.9
0
R
D1
P
Bottom View
End View
DIMENSIONS
0.203 REF
0.50 BSC
NOM.
0.75
0.02
0.25
0.80
16.5 dB
41.2 dBm
‑58 dBc
24.8 dBm
1.55 dB
2.0
2.0
1.6
b
A2
e
pin1
MAX.
0.275
0.80
0.05
0.95
1.75
2.1
2.1
pin1
1
2
3
4
2PX
D
Top View
End View
8
7
6
5
References
[1] Ward, A. (2001) Avago Technologies ATF-54143 Low
Noise Enhancement Mode Pseudomorphic HEMT in a
Surface Mount Plastic Package, 2001 [Internet], Avail‑
able from:
<http://www.avagotech.com>
[2] Biasing Circuits and Considerations for GaAs MES-
FET 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
ATF‑521P8‑TR1
ATF‑521P8‑TR2
ATF‑521P8‑BLK
E
A
No. of Devices
3000
10000
100
Container
7” Reel
13”Reel
antistatic bag