Datasheet > SKY77518-11A

SKY77518-11A

更新时间： 2024-11-18 20:00:31

品牌	Logo	应用领域
思佳讯 - SKYWORKS		电信信息通信管理电信集成电路
页数	文件大小	规格书
2页	73K
描述
RF Front End Circuit, BICMOS, PXMA20, 6 X 8 MM, 1.10 MM HEIGHT, ROHS COMPLIANT, PLASTIC, MCM-20

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SKY77518-11A 技术参数

生命周期：	Obsolete	零件包装代码：	MCM
包装说明：	,	针数：	20
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.81	JESD-30 代码：	R-PXMA-X20
功能数量：	1	端子数量：	20
最高工作温度：	85 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY	认证状态：	Not Qualified
表面贴装：	NO	技术：	BICMOS
电信集成电路类型：	RF FRONT END CIRCUIT	温度等级：	OTHER
端子形式：	UNSPECIFIED	端子位置：	UNSPECIFIED
Base Number Matches：	1

SKY77518-11A 数据手册

PRODUCT SUMMARY

SKY77518–11 Tx–Rx iPAC^™FEM for Dual-Band GSM/GPRS

Applications

Description

The SKY77518–11 is a transmit and receive front-end module (FEM) with Integrated Power Amplifier

Control (iPAC^™) for dual-band cellular handsets comprising GSM900 and DCS1800 operation.

Designed in a low profile, compact form factor, the SKY77518–11 offers a complete Transmit VCO-to-

Antenna and Antenna-to-Receive SAW filter solution. The FEM also supports Class 12 General Packet

Radio Service (GPRS) multi-slot operation.

• Dual-band cellular handsets

encompassing

- Class 4 GSM900

- DCS1800

- Class 12 GPRS multi-slot

operation

The module consists of a GSM900 PA block and a DCS1800 PA block, impedance-matching circuitry

for 50 Ω input and output impedances, TX harmonics filtering, high linearity and low insertion loss

PHEMT RF switches, diplexer and a Power Amplifier Control (PAC) block with internal current sense

resistor. A custom BiCMOS integrated circuit provides the internal PAC function and decoder circuitry

to control the RF switches. The two Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated

onto a single Gallium Arsenide (GaAs) die. One PA block supports the GSM900 band and the other PA

block supports the DCS1800 band. Both PA blocks share common power supply pads to distribute

current. The output of each PA block and the outputs to the two receive pads are connected to the

antenna pad through PHEMT RF switches and a diplexer. The GaAs die, PHEMT die, Silicon (Si) die

and passive components are mounted on a multi-layer laminate substrate. The assembly is

encapsulated with plastic overmold.

Features

• High efficiency

- GSM900 48%

- DCS 41%

• Low transmit supply current

- GSM900 1.26 A

- DCS1800 0.9 A

• Internal ICC sense resistor

Band selection and control of transmit and receive modes are performed using two external control

pads. Refer to the functional block diagram in Figure 1 below. The band select pad (BS) selects

between GSM and DCS modes of operation. The transmit enable (TX_EN) pad controls receive or

transmit mode of the respective RF switch (TX = logic 1). Proper timing between transmit enable

(TX_EN) and Analog Power Control (VRAMP) allows for high isolation between the antenna and TX-

VCO while the VCO is being tuned prior to the transmit burst.

for iPAC

• Closed loop iPAC

• 50 Ω matched Input/Output

• TX–VCO-to-antenna and

antenna-to-RX-SAW filter

RF interface

The SKY77518–11 is compatible with logic levels from 1.2 V to VCC for BS and TX_EN pads,

depending on the level applied to the VLOGIC pad. This feature provides additional flexibility for the

designer in the selection of FEM interface control logic.

• TX harmonics below –33

dBm

• PHEMT RF switches afford

high linearity, low insertion

loss, and less than 20 μA

supply current in receive

modes

• Small outline: 6 x 8 mm

• Low profile: 1.1 mm

• Compatible with multiple

logic families

• Low APC current: 25 μA

Figure 1. SKY77518-11 Functional Block Diagram

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201056A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • March 13, 2009

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与SKY77518-11A相关器件

型号	品牌	获取价格	描述	数据表
SKY77518-21	SKYWORKS	获取价格	RF Front End Circuit, BICMOS, 6 X 8 MM, 1.20 MM HEIGHT, ROHS COMPLIANT, MCM-20
SKY77519	SKYWORKS	获取价格	RF Front End Circuit, CMOS, PXMA28, 6 X 6 MM, 1.10 MM HEIGHT, ROHS COMPLIANT, PLASTIC PACK
SKY77527-21	SKYWORKS	获取价格	Tx Front-End Module for Quad-Band GSM / EDGE
SKY77528	SKYWORKS	获取价格	Tx Front-End Module for Quad-Band GSM / EDGE
SKY77529	SKYWORKS	获取价格	Tx Front-End Module for Quad-Band GSM / EDGE
SKY77542	SKYWORKS	获取价格	Tx - Rx iPAC- FEM for Dual-Band GSM/GPRS (880 - 915 MHz), (1710 - 1785 MHz)
SKY77543	SKYWORKS	获取价格	Tx - Rx iPAC FEM for Dual-Band GSM / GPRS (824 - 849 MHz), (1850 - 1910 MHz)
SKY77546	SKYWORKS	获取价格	Tx - Rx Front-End Module for Dual-Band GSM / GPRS / EDGE
SKY77547	SKYWORKS	获取价格	Tx-Rx iPAC Front-End Module - Quad-Band GSM/GPRS
SKY77548	SKYWORKS	获取价格	Tx-Rx iPAC™ Front-End Module for Dual-Band GS

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