AP2085
5 GHz Power Amplifier
2004.08.06 Preliminary
For more information,please contact us at:
Sales Dept.
Tel: +886-2-2698-1022
e-mail: sales@rfintc.com
© 2004 RF Integrated Corporation. All rights reserved.
RF integrated Corp. reserved the right to make any changes to the specifications without notice.
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AP2085 is a linear, three-stage power amplifier MMIC in the
5GHz band utilizing InGaP/GaAs HBT process. With the
excellent linearity performance, the device delivers ~18dBm
linear output power for EVM<3%, and 30dB gain under
54Mbps OFDM (IEEE802.11a) modulation at 3.3V. AP2085
can also deliver ~20dBm linear output power for
EVM<3%, and 31dB gain at 5.0 V. The AP2085 is housed
in a 3 x 3 (mm), 16 pin, QFN package. This power amplifier is
suitable for the high gain applications in the full 802.11a
5GHz band.(4.9~5.85GHz)
Major Applications
• Wireless LAN IEEE 802.11a
• FCC-U-NII Wireless
• HiperLAN2
Pin Details
Functional Block Diagram
QFN- 16 pin, 3 x 3 (mm)
RF IN
NC
NC
RF OUT
RF OUT
Detector
1
8
7
6
5
4
3
2
9
10
11
12
16
15
14
13
RF IN
NC
Vreg1 Vreg2
Vreg3 Vcc_Bias
NC
Vcc1
Vcc2
Vcc3
Ground
GND
Pkg Base
No Contact
NC
16
Supply voltage for first stage
Vcc1
15
Supply voltage for second stage
Vcc2
14
Supply voltage for third stage
Vcc3
13
No Contact
NC
12
RF Output
RF_OUT
11
RF Output
RF_OUT
10
Detector
Detector
9
Bias Circuit Supply
Vcc_Bias
8
Third Stage Bias
Vreg3
7
Second Stage Bias
Vreg2
6
First Stage Bias
Vreg1
5
No Contact
NC
4
No Contact
NC
3
RF Input
RF_IN
2
RF Input
RF_IN
1
Description
Name
Pin Number
• Full 11a frequency range: 4.9~5.85GHz
(Gain and Power Flatness for the full 11a band)
Under Vc = 3.3V (For bias condition, please see
Application Note)
• High Gain: ~30dB at Pout=18dBm
• Pout @ EVM<3%: ~18dBm
• Total Current at Pout @ EVM<3%: ~210mA
Under Vc = 5V (For bias condition, please see
Application Note)
• High Gain: ~31dB at Pout=20dBm
• Pout @ EVM<3%: ~20dBm
• Total Current at Pout @ EVM<3%: ~260mA
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