SKY77325

更新时间： 2024-11-18 03:12:39

品牌	Logo	应用领域
思佳讯 - SKYWORKS		射频和微波射频放大器微波放大器 GSM
页数	文件大小	规格书
19页	843K
描述
iPAC⑩ PAM for Quad-Band GSM / GPRS

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技术参数
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SKY77325 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.82	Is Samacsys：	N
其他特性：	IT CAN ALSO OPERATE AT 880 TO 915 MHZ, 1710 TO 1785 MHZ AND 1850 TO 1910 MHZ	特性阻抗：	50 Ω
构造：	COMPONENT	最大输入功率 (CW)：	15 dBm
JESD-609代码：	e4	最大工作频率：	849 MHz
最小工作频率：	824 MHz	最高工作温度：	100 °C
最低工作温度：	-20 °C	射频/微波设备类型：	NARROW BAND MEDIUM POWER
端子面层：	Gold (Au)	最大电压驻波比：	2
Base Number Matches：	1

SKY77325 数据手册

PRELIMINARY DATA SHEET

SKY77325: iPAC™ PAM for Quad-Band GSM / GPRS

Applications

Description

The SKY77325 Power Amplifier Module (PAM) is designed in a low profile (1.2 mm), compact form

factor for quad-band cellular handsets comprising GSM850/900, DCS1800, and PCS1900 operation.

The PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation.

• Quad-band cellular

handsets encompassing

- Class 4 GSM850/900

- Class 1 DCS1800

PCS1900

The module consists of separate GSM850/900 PA and DCS1800/PCS1900 PA blocks, impedance-

matching circuitry for 50 Ω input and output impedances, and a Power Amplifier Control (PAC) block

with an internal current-sense resistor. The custom BiCMOS integrated circuit provides the internal

PAC function and interface circuitry. Fabricated onto a single Gallium Arsenide (GaAs) die, one

Heterojunction Bipolar Transistor (HBT) PA block supports the GSM850/900 bands and the other

supports the DCS1800 and PCS1900 bands. Both PA blocks share common power supply pins to

distribute current. The GaAs die, the Silicon (Si) die, and the passive components are mounted on a

multi-layer laminate substrate. The assembly is encapsulated with plastic overmold.

- Class 12 GPRS multi-slot

operation

Features

• Low input power range

- 0 to 6 dBm

• High efficiency

- GSM850 49%

- GSM900 53%

- DCS 53%

RF input and output ports of the SKY77325 are internally matched to a 50 Ω load to reduce the

number of external components for a quad-band design. Extremely low leakage current (2.5 µA,

typical) of the dual PA module maximizes handset standby time. The SKY77325 also contains band-

select switching circuitry to select GSM (logic 0) or DCS/PCS (logic 1) as determined from the Band

Select (BS) signal. In Figure 1 below, the BS pin selects the PA output (DCS/PCS OUT or GSM850/900

OUT) and the Analog Power Control (VAPC) controls the level of output power.

- PCS 53%

• BiCMOS PA controller and

interface IC

- Low power control slope

- Fast response time

- Improved control

accuracy

VBATT and VSENSE pins connect to an internal current-sense resistor and interface to an integrated

power amplifier control (iPAC™) function, which is insensitive to variations in temperature, power

supply, process, and input power. The ENABLE input allows initial turn-on of PAM circuitry to minimize

battery drain.

• Integrated closed loop

power amplifier control

• Internal ICC sense resistor

for PAC

• Input/Output matching 50

internal (with DC blocking)

• 22-pin package

• Small outline

- 6 mm x 8 mm

• Low profile

- 1.2 mm maximum

• Gold plated, lead-free

contacts

Figure 1. Functional Block Diagram

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

103196P5 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • May 14, 2004

12 3 4 5 6 7...19

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与SKY77325相关器件

型号	品牌	获取价格	描述	数据表
SKY77326	SKYWORKS	获取价格	Narrow Band Medium Power Amplifier, 880MHz Min, 915MHz Max, 2 Func, GAAS, 6 X 8 MM, 1.20 M
SKY77328	SKYWORKS	获取价格	iPAC PAM for Quad-Band GSM/GPRS
SKY77331	SKYWORKS	获取价格	Power Amplifier Module with Integrated Coupler for Quad-Band GSM / EDGE
SKY77336	SKYWORKS	获取价格	Power Amplifier Module for Quad-Band GSM/GPRS/EDGE
SKY77340	SKYWORKS	获取价格	PA Module for Quad-Band GSM / EDGE
SKY77344	SKYWORKS	获取价格	PA Module for Quad-Band GSM / EDGE
SKY77346	SKYWORKS	获取价格	iPAC? PA Module for Quad-Band GSM / GPRS
SKY77350	SKYWORKS	获取价格	Power Amplifier Module for Quad-Band
SKY77351-13	SKYWORKS	获取价格	SKY77351-13 POWER AMPLIFIER MODULE FOR QUAD-BAND GSM / GPRS / EDGE
SKY77354	SKYWORKS	获取价格	SKY77354 POWER AMPLIFIER MODULE FOR QUAD-BAND GSM / GPRS / EDGE

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