Star 4 OEM GPS Clock for Base Station integration Introduction The Oscilloquartz Star 4 series offers superior time and frequency synchronization in a minimal space and at a ultra low cost. Based on a state-of-the art GPS receiver, the Clock delivers 1PPS, 10 MHz and time-of-day outputs with the highest levels of accuracy and stability. In addition to GPS, the Star 4 board has a 1PPS input to cascade time and frequency from a single GPS-antenna to several Star 4 boards, saving the cost of multiple GPS antenna installations. Various levels of configurations are available to easily adapt to Broadcast the requirements Station systems, of and your Base Stations, sub-systems for a discrete and cost optimized synchronization solution. When no valid input is available, the OSA OEM GPS Clock enters into holdover mode and is specially designed to hold its output frequencies to supply long hours of frequency and phase accuracies. When enhanced with Oscilloquartz’ advanced Aging and Temperature Drift Compensation (ATDC) system, the Star 4 is the most stable GPS quartz clock available in holdover mode. It has a very thin form factor and allows for large temperature variations and harsh environmental conditions. integrate into any crystal oscillators, adapting cost and holdover performance to the actual application: FDD/TDD, Thanks to an exhaustive list of commands, Star 4 is easy to Star 4 features a wide variety of Oscilloquartz base station MFN/SFN, Indoor/Outdoor. management platform. Highlights Typical Applications Inexpensive and easy-to-integrate GPS Clock Rack integration for Wireless Base stations High frequency stability and long term accuracy WiMAX, WiBRO, 3G, 4G, LTE, CDMA, TD-SCDMA Various oscillators and holdover capabilities DAB, DVB-T/H/SH, T-DMB, MediaFLO, DRM Ultra compact + reliable E911 Location Systems 1PPS, 10MHz and Time-of-day Timing and Synchronization Phase alignment of all outputs within ±5ns with “0 crossing” 1PPS / 10MHz UTC-derived 1PPS and NMEA0183 timing information 1 Power supply input connection only ROHS compliant Firmware upgradeable Oscilloquartz SA / Rue des Brévards 16 / CH-2002 Neuchâtel Switzerland / Tel.+41(0)32 722 55 55 / Fax+41(0)32 722 55 56 [email protected] / www.oscilloquartz.com

Star 4 OEM GPS Clock for Base Station integration Typical Characteristics GPS System Alternative input to GPS receiver 50-channels, L1 frequency, C/A Code 1 PPS: 3.3 V LVCMOS @ 1 kΩ (optional) High immunity to jamming Single input power supply First acquisition and tracking after 1 minute 12 VDC -160dBm in fixed position and -144dBm in cold start Management Short circuit and TVS protection at 5kV LVTTL 3.3V or RS-232 (on choice) 4 alarm outputs and firmware upgrade by download OEM GPS CLOCK variants STAR 4 — S01 STAR 4 — S01 STAR 4+ — DO STAR 4+ — ATDC Oscillator Single-oven OCXO 1 Single-oven...