SKY13491-21屬于RF/IF射頻/中頻RFID的射頻開關(guān)。由美國思佳訊公司制造生產(chǎn)的SKY13491-21射頻開關(guān)射頻開關(guān)產(chǎn)品是用于在多個可用信號路徑之間路由 RF、IF 或微波信號的器件。示例應(yīng)用包括多天線（分集）接收器中的天線選擇、多模式系統(tǒng)中發(fā)射-接收路徑的選擇，或在發(fā)射和接收信號鏈之間切換天線。

Applications

? 2G/3G/4G multimode cellular handsets (LTE, UMTS, CDMA2000,

EDGE, GSM, TDD-LTE, TD-SCDMA)

? Embedded data cards

特性 Features

? Dedicated Band 7 TRX ports: 0.90 dB insertion loss @ 2.7 GHz

? High isolation and linearity

? Broadband frequency range: 0.7 to 2.7 GHz

? Twelve linear TRX ports

? Integrated low and high band GSM harmonic filters

? External MIPI select pin to enable multiple trigger controls

? Small MCM (22-pin, 2.5 x 2.9 x 0.8 mm) package (MSL3,

260 ?C per JEDEC J-STD-020)

描述 Description

The SKY13491-21 is a Single-Pole, Fourteen-Throw (SP14T)

antenna switch with an integrated Mobile Industry Processor

Interface (MIPI?) controller. Using an advanced switching

technology, the SKY13491-21 maintains low insertion and high

isolation, which makes it an ideal choice for UMTS, CDMA2000,

EDGE, GSM, and LTE applications.

The design features two dedicated GSM transmit ports and three

dedicated ultra low-loss TRX ports. The switch also has an

excellent triple beat ratio and 2nd/3rd Order Intermodulation

Distortion (IMD2/IMD3) performance.

Switching is controlled by the MIPI decoder. There is an external

MIPI select pin that enables how the switch responds to power

mode triggers. When this pin is grounded, the switch responds to

any of the power mode triggers. When this pin is left open, the

switch responds to individual power mode triggers. No external

DC blocking capacitors are required on the RF paths as long as no

DC voltage is applied.

The SKY13491-21 is manufactured in a compact,

2.5 x 2.9 x 0.8 mm, 22-pin surface mount Multi-Chip Module

(MCM) package.

A functional block diagram is shown in Figure 1. The pin

configuration and package are shown in Figure 2. Signal pin

assignments and functional pin descriptions are provided in

Table 1.