Si554 Datasheet | Skyworks Solutions

Features - Available with any-rate output - Internal fixed crystal frequency frequencies from 10- 945 MHz and ensures high reliability and low selected frequencies to 1.4 GHz aging - Four selectable output frequencies - Available CMOS, LVPECL, - 3rd generation DSPLL® with superior LVDS, and CML outputs jitter performance - 3.3, 2.5, and 1.8 V supply options - 3x better frequency stability than - Industry-standard 5 x 7 mm SAW-based oscillators package and pinout - Pb-free/Ro HS-pliant Applications - SONET/SDH - x DSL - 10 Gb E LAN / WAN Description - Low jitter clock generation - Optical modules - Clock and data recovery The Si554 quad-frequency VCXO utilizes Skyworks Solutions’ advanced DSPLL® circuitry to provide a very low jitter clock for all output frequencies. The Si554 is available with any-rate output frequency from 10 to 945 MHz and selected frequencies to 1400 MHz. Unlike traditional VCXOs, where a different crystal is required for each output frequency, the Si554 uses one fixed crystal frequency to provide a wide range of output frequencies. This IC-based approach allows the crystal resonator to provide exceptional frequency stability and reliability. In addition, DSPLL clock synthesis provides superior supply noise rejection, simplifying the task of generating low jitter clocks in noisy environments typically found in munication systems. The Si554 IC-based VCXO is factory-configurable for a wide variety of user specifications including frequency, supply voltage, output format, tuning slope, and temperature stability. Specific configurations are factory-programmed at time of shipment, thereby eliminating the long lead times associated with custom oscillators. Functional Block Diagram CLK- CLK+ Si5602 Ordering Information: See page 10. Pin Assignments: See page 9. (Top View) FS[1] VC 1 7 6 VDD OE 2 5 CLK- GND 3 4 8 FS[0] CLK+ Any-rate FS1 Fixed Frequency XO 10- 1400 MHz...