Si597 QUAD FREQUENCY VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO) 10 TO 810 MHZ Features Available with any-frequency Available CMOS, LVPECL, Si5602 output from 10 to 810 MHz LVDS, and CML outputs 4 selectable output frequencies 3.3, 2.5, and 1.8 V supply options 3rd generation DSPLL with Industry-standard 5 x 7 mm superior jitter performance package and pinout Pb-free/RoHS-compliant Internal fixed fundamental mode crystal frequency ensures high 40 to +85 C operating range reliability and low aging Ordering Information: Applications See page 8. SONET/SDH (OC-3/12/48) OTN Networking Clock recovery and jitter cleanup PLLs SD/HD SDI/3G SDI video FPGA/ASIC clock generation Pin Assignments: See page 7. Description The Si597 quad frequency VCXO utilizes Skyworks Solutions advanced (Top View) DSPLL circuitry to provide a low-jitter clock for all output frequencies. The Si597 is available with one of four pin-selectable ouput frequencies from 10 FS 1 to 810 MHz. Unlike traditional VCXOs, where a different crystal is required 7 for each output frequency, the Si597 uses one fixed crystal to provide a wide VC 1 6 V DD range of output frequencies. This IC-based approach allows the crystal resonator to provide exceptional frequency stability and reliability. In OE 2 5 CLK addition, DSPLL clock synthesis provides supply noise rejection, simplifying the task of generating low-jitter clocks in noisy environments. The Si597 IC- GND 3 4 CLK+ 8 based quad frequency VCXO is factory-configurable for a wide variety of user specifications including frequencies, supply voltage, output format, FS 0 tuning slope, and absolute pull range (APR). Specific configurations are factory programmed at time of shipment, thereby eliminating the long lead times associated with custom oscillators. Functional Block Diagram V DD Power Supply Filtering Power Supply Filtering OE CL K+ Fixed Any Frequency Frequency O scillator 10810 MHz CL K- DSPLL Clock Synthesis ADC V c Control GN D FS 0 FS 1 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 24, 2021 Si597 TABLE OF CONTENTS Section Page 1. Electrical Specifications .3 2. Pin Descriptions 7 3. Ordering Information 8 4. Outline Diagram and Suggested Pad Layout 9 5. 8-Pin PCB Land Pattern .10 6. Si597 Mark Specification 11 Revision History .12 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.2 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice November 24, 2021