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CX77312

Part Number	CX77312
Manufacturer	Skyworks
Description	PAM
Published	Dec 14, 2005
Detailed Description	ADVANCE PRODUCT SUMMARY SUMMARY CX77312: iPAC™ PAM for Quad-Band GSM / GPRS APPLICATIONS • Quad-band cellular handsets ...
Datasheet	CX77312 PDF File

Overview

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.
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...

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