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ATR3515-PEQ Datasheet

  • ATR3515-PEQ

  • 5-GHz WLAN Power Amplifier for 802.11a

  • 155.26KB

  • 7頁(yè)

  • ATMEL   ATMEL

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Features
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Frequency Range 4.9 GHz to 5.9 GHz
Supply-voltage 2.7 V to 3.6 V
2.5% EVM at 19 dBm Output Power at 54 Mbit/s OFDM
26.5 dB P
1dB
On-chip Power Detector with 20 dB Dynamic Range
Power-down Mode and Biasing Control
Low Profile Lead-free Plastic Package QFN16 (4
麓
4
麓
0.9 mm)
Applications
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IEEE 802.11a OFDM WLAN
Hiperlan2 WLAN
PC Cards, PCMCIA
5 GHz ISM Band Application
5-GHz WLAN
Power Amplifier
for 802.11a
ATR3515
Preliminary
Electrostatic sensitive device.
Observe precautions for handling.
Description
Process
The 5-GHz power amplifier is designed in Atmel鈥檚 advanced Silicon-Germanium
(SiGe) process and provides excellent linearity and noise performance as well as
good power-added efficiency.
Circuitry
The PA consists of a two-stage amplifier with a P
1db
of 26 dBm. The output stage was
realized using an open-collector structure. Power-up/down and output level are con-
trolled at bias control pin 6 (VCTL). An on-chip power detector provides a voltage
proportional to the output power.
Figure 1.
Block Diagram
VCC1
15
VCC2
13
ATR3515
RFIN
3
Matching
RFOUT
11
RFOUT
10
Bias control
Power
Detector
6
VCTL
16
VCC_CTL
7
VDET_OUT
Rev. 4514H鈥揥LAN鈥?2/03

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