CX77105 Power Amplifier Module for CDMA/AMPS(824–849 MHz)
The CX77105, a dual-mode, Code Division Multiple Access (CDMA) / Advanced Mobile Phone Service (AMPS) Power Amplifier Module (PAM), is a fully matched, 10-pad surface mount module developed for cellular handsets and wireless local loop applications. This small and efficient power amplifier module packs a full 824–849 MHz bandwidth coverage into a single compact package. The device meets the stringent IS95 CDMA linearity requirements to and exceeding 28 dBm output power, and can be driven to levels beyond 31 dBm for high efficiency in FM mode operation. A low current digital pad (VCONT) provides improved efficiency for the low RF power range of operation. The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage matching circuits. Output match into a 50 Ω load is realized off-chip and within the module package to optimize efficiency and power performance. This device is manufactured with SKYWORKS’ GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply operation while maintaining high efficiency and good linearity. Primary bias to the CX77105 is supplied directly from a three-cell Ni-Cd, a single-cell Li-Ion, or other suitable battery with an output in the 3 to 4 volt range. Power down is accomplished by setting the voltage on the low current reference pad to zero volts. No external supply side switch is needed as typical “off” leakage is a few microamperes with full primary voltage supplied from the battery.
技术特性
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应用领域 APPLICATION
订购信息 Ordering Information
功能框图 Functional Block Diagram
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| 应用技术支持与电子电路设计开发资源下载 | 版本信息 | 大小 |
| CX77105 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
