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SKY77324

更新时间： 2024-11-17 21:54:27
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
24页 3842K
描述
iPAC PAM for Quad-Band GSM / GPRS

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中文翻译

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SKY77324 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：LCC22,.25X.32,60/40
Reach Compliance Code：unknown风险等级：5.82
特性阻抗：50 Ω构造：COMPONENT
最大输入功率 (CW)：15 dBmJESD-609代码：e4
安装特点：SURFACE MOUNT功能数量：2
端子数量：22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：-25 °C封装主体材料：PLASTIC/EPOXY
封装等效代码：LCC22,.25X.32,60/40电源：3.5 V
射频/微波设备类型：NARROW BAND MEDIUM POWER子类别：RF/Microwave Amplifiers
最大压摆率：2500 mA表面贴装：YES
技术：GAAS端子面层：Gold (Au)
最大电压驻波比：2Base Number Matches：1

SKY77324 数据手册

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DATA SHEET  
SKY77324: iPAC™ PAM for Quad-Band GSM / GPRS  
Applications  
The SKY77324 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  
- Class 12 GPRS multi-slot operation  
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 CMOS 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.  
Features  
• Low input power range 0 to 6 dBm  
• High efficiency  
- GSM850 49%  
- GSM900 53%  
- DCS 53%  
- PCS 53%  
RF input and output ports of the SKY77324 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 SKY77324 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.  
• Internal ICC sense resistor for PAC  
• Closed loop iPAC or open loop  
operation with external PAC circuit  
• Input/Output matching 50 Ω internal  
(with DC blocking)  
• 22-pin package  
- Small outline 6 mm x 8 mm  
- Low profile 1.2 mm maximum  
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, and process. The PAC ENABLE input allows initial turn-on of PAC  
circuitry to minimize battery drain.  
• Low APC current 20 µA  
• 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  
103123C • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • January 7, 2004  
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