參數(shù)資料
型號(hào)： ATR3515-PEQ
廠商： ATMEL CORP
元件分類： 網(wǎng)絡(luò)接口
英文描述： 5-GHz WLAN Power Amplifier for 802.11a
中文描述： DATACOM, NETWORK INTERFACE SUPPORT CIRCUIT, QCC16
封裝： 4 X 4 MM, 0.90 MM HEIGHT, MO-220, QFN-16
文件頁數(shù)： 1/7頁
文件大?。?/td> 161K
代理商： ATR3515-PEQ
Rev. 4514H–WLAN–12/03
Features
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 4 0.9 mm)
Applications
IEEE 802.11a OFDM WLAN
Hiperlan2 WLAN
PC Cards, PCMCIA
5 GHz ISM Band Application
Electrostatic sensitive device.
Observe precautions for handling.
Description
Process
The 5-GHz power amplifier is designed in Atmel’s 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
Matching
RFIN
3
RFOUT
11
RFOUT
10
6
VCTL
16
VCC_CTL
VCC1
15
VCC2
13
ATR3515
Bias control
Power
Detector
7
VDET_OUT
5-GHz WLAN
Power Amplifier
for 802.11a
ATR3515
Preliminary
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