SE2595L屬于RF/IF射頻/中頻RFID的射頻前端（LNA+PA）。由美國思佳訊公司制造生產(chǎn)的SE2595L射頻前端（LNA + PA）本系列中的產(chǎn)品是各種集成電路，其中集成了射頻 (RF) 信號鏈連接到系統(tǒng)天線的部分中常見的一種或多種功能，如低噪聲放大器 (LNA) 和可編程放大器 (PA)。任何給定器件所含的實際功能各不相同，相比旨在提供更高應(yīng)用靈活性的器件，針對相對較窄應(yīng)用的器件通常集成更大一部分必要的信號鏈。

Features

? One transmit and one receive path architecture for

use as MIMO building block

? All RF ports matched to 50 Ω

? Integrated 2.4/5 GHz PA, 2.4/5 GHz LNA,

TX filter, T/R switches and diplexers

? Integrated power detector

? 19 dBm O/P power, 802.11b, 11 Mbits,

ACPR = 32 dBc

? 18 dBm @ 3.0 EVM, 802.11g, 54 Mbits

? 16 dBm @ 3.0 EVM, 802.11a, 54 Mbits

? Single supply voltage: 3.3 V ±10

? Lead free, halogen free and RoHS compliant

? Thin lead free plated package,

4 mm x 6 mm x 0.9 mm, MSL 3

Description

The SE2595L is a complete 802.11n WLAN RF frontend

module providing all the functionality of the

power amplifiers, LNA, power detector, T/R switch,

diplexers and associated matching. The SE2595L provides

a complete 2.4 GHz and 5 GHz WLAN Multiple

Input, Multiple Output (MIMO) RF solution from the

output of the transceiver to the antennas in a compact

form factor.

The receive path is designed to maximize performance

by providing both a low noise amplifier as well as a

bypass state, for use when high power signals are

being received.

Designed for ease of use, all RF ports are matched to

50 Ω to simplify PCB layout and the interface to the

transceiver RFIC. The SE2595L also includes a transmitter

power detector for each band with 20 dB of

dynamic range. The power ramp rise/fall time is less

than 0.5 μs.

The device also provides band pass filters for both the

a and b/g bands prior to the input of each 2.4 GHz and

5 GHz power amplifiers, respectively.