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CX77312 - PAM

General Description

at any time, without notice.

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Key Features

  • Low input power range0 to 6 dBm.
  • High efficiency.
  • w.
  • w w . D at aS he et 4U Figure 1. Functional Block Diagram . c Skyworks Solutions, Inc. Proprietary Information.

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ADVANCE PRODUCT SUMMARY SUMMARY CX77312: iPAC™ PAM for Quad-Band GSM / GPRS APPLICATIONS • Quad-band cellular handsets encompassing - Class 4 GSM850/900 - Class 1 DCS1800 PCS1900 - Class 12 GPRS multi-slot operation The CX77312 Power Amplifier Module (PAM) is designed in a 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. The module consists of separate GSM850/900 PA and DCS1800/PCS1900 PA blocks, impedance-matching circuitry for 50 W 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.