Datasheet > SST11LF04

SST11LF04

更新时间： 2024-09-30 01:11:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
18页	482K
描述
4.9-5.9 GHz High-Linearity, High-Efficiency Front-end Module

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SST11LF04 数据手册

SST11LF04

4.9-5.9 GHz High-Linearity, High-Efficiency Front-end Module

Applications

FEATURES

• WLAN–IEEE 802.11a/n/ac

• WAVE(IEEE 802.11p)

• Home RF

• Input/output ports internally matched to 50 and

DC decoupled

• Package available

- 16-contact X2QFN – 2.5mm x 2.5mm x 0.4mm (max)

• Devices are RoHS compliant

• Cordless phones

• 5 GHz ISM wireless equipment

Transmitter Chain

PRODUCT DESCRIPTION

• Operating voltage 3.0V to 5.0V

• Gain:

SST11LF04 is a 4.9-5.9 GHz Front-end Module (FEM)

designed in compliance with IEEE 802.11a/n/p/ac

applications. Based on GaAs pHEMT/HBT technology,

it combines a high-performance Power Amplifier (PA),

a low-noise amplifier (LNA) and an antenna Tx/Rx

switch (SW). The input/output RF ports are single-

ended and internally matched to 50 . These RF ports

are DC decoupled, and require no external DC-block-

ing capacitors or matching components. This helps

reduce the system board Bill of Materials (BOM) cost.

- Typically 30 dB gain across 4.9-5.9 GHz at 3.3V

• Typical linear output power at 3.3V:

- Meets 802.11a OFDM ACPR requirement up to

21 dBm

- Meets 802.11ac spectrum mask requirement up

to 20 dBm

- 3.0% dynamic EVM up to 18 dBm for 802.11a,

54 Mbps

- 1.75% dynamic EVM up to 16 dBm for 802.11ac,

MCS9, 80 MHz

There are two functional components to the FEM: the

Transmitter (TX) chain and the Receiver (RX) chain.

• Operating current for 802.11a/n/ac applications

- 270 mA @ P_OUT= 18 dBm for 802.11a at 3.3V

• I_PEN: 6 mA

The TX chain includes a high-efficiency PA based on

the InGaP/GaAs HBT technology. At 3.3V, the transmit-

ter typically provides 30 dB gain and provides 802.11a

spectrum mask compliance at 21 dBm. The TX chain

has excellent linearity, typically 3% dynamic EVM at

18 dBm output power, with 802.11a, 54 Mbps operation

and requires only 270 mA DC current. It also provides

up to 16 dBm output power with 1.75% dynamic EVM

using 802.11ac MCS9, 80 MHz modulation.

SST11LF04 transmitter features a high-speed power-

up/-down control with low current (total I_PEN~6 mA).

• Idle current: 210 mA I_CQ

• Low shut-down current: ~2 µA

• High-speed power-up/down

- Turn on/off time (10%–90%) <400 ns

• Limited variation over temperature

- ~1 dB gain/power variation between -40°C to +85°C

• Excellent on-chip power detection

- Load and temperature insensitive

- >20 dB dynamic range on-chip power detection

SST11LF04 has an excellent on-chip, single-ended

power detector that is stable over temperature and

insensitive to output VSWR. This detector features a

wide dynamic-range (20 dB) with dB-wise linear opera-

tion, thus providing a reliable solution to board-level

power control.

Receiver Chain

• Gain:

- Typically 12 dB gain across 4.9-5.9 GHz

• Noise figure

The Rx chain provides typically 12 dB gain with 2.95 dB

noise figure. With the LNA bypassed, the receiver loss

is typically 8 dB with P1dB>20 dBm.

- Typically 2.95 dB across 4.9-5.9 GHz

• LNA bypass loss

- Typically 8 dB

SST11LF04 is offered in a16-contact X2QFN package.

See Figure 2-1 for pin assignments and Table 2-1 for

pin descriptions.

 2014 Microchip Technology Inc.

DS70005081B-page 1

12 3 4 5 6 7...18

中文翻译

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