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CX74038

Part Number	CX74038
Manufacturer	Skyworks Solutions
Description	2.6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer
Published	Oct 11, 2006
Detailed Description	www.DataSheet4U.com DATA SHEET CX74038: 2.6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer Applications...
Datasheet	CX74038 PDF File

Overview

www.
DataSheet4U.
com DATA SHEET CX74038: 2.
6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer Applications • Multi-slot GSM/DCS • PCS/W-CDMA • Portable communication systems • Dual-mode cellular telephone systems • Spread spectrum receivers • Wireless LAN systems • Wireless routers and WLL systems • SATCOM receivers Description The Skyworks CX74038 is a complete, low-power 2.
6 GHz/800 MHz dual frequency synthesizer.
The device provides both Radio Frequency (RF) channels and Intermediate Frequency (IF) channels.
Fractional-N operation offers low phase noise, fast settling time, and low spurious tones for RF channels.
A standard integer-N division is used for IF channels.
The three-wire serial interface provides programmable control of the frequency synthesizer to support dual-conversion transceivers.
The 20-pin Thin Shrink Small Outline Package (TSSOP) device package and pin configuration are shown in Figure 1.
A functional block diagram of the CX74038 is shown in Figure 2.
www.
DataSheet4U.
com VDD1_IF VDD2_IF CPO_IF GND IFIN IFINB GND LE DAT CLK C1452 Features • Maximum operating frequency: 2.
6 GHz • Maximum IF synthesizer frequency: 800 MHz • Supply voltage as low as 2.
6 V www.
DataSheet4U.
com • Fast frequency settling time with fractional-N operation • Internal fractional spur reduction • Programmable charge pump currents • Digital lock detector • Power saving at lower frequency • TSSOP (20-pin, 6.
5 x 4.
4 x 1.
0 mm) package VDD1_RF VDD2_RF CPO_RF GND RFIN RFINB GND FREF GND LD_TP 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Figure 1.
CX74038 Pinout – 20-Pin TSSOP (Top View) Skyworks Solutions, Inc.
• Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.
com • www.
skyworksinc.
com 101075I • Skyworks Proprietary and Confidential information • Products and product information are subject to change without notice • January 31, 2005 1 www.
DataSheet4U.
com www.
DataSheet4U.
com DATA SHEET • CX74038 GND VDD2_RF VDD1_RF GND CPO_RF GND R...

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