CX74038 Datasheet | Skyworks Solutions

.. DATA SHEET CX74038: 2.6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer Applications - Multi-slot GSM/DCS - PCS/W-CDMA - Portable munication systems - Dual-mode cellular telephone systems - Spread spectrum receivers - Wireless LAN systems - Wireless routers and WLL systems - SAT receivers Description The Skyworks CX74038 is a plete, 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. .. 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 .. - 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...