TIMING, TEST & MEASUREMENT 58502A Broadband Distribution Amplifier INTRODUCTION • Autoswitch When the unit detects one of KEY FEATURES • its inputs is removed or the amplitude of the The Symmetricom 58502A Broadband 12-Channel Broadband (0.1 to 10 MHz) Distribution Amplifier is the one frequency input is greatly reduced, it will automatically Sine Wave Distribution switch to the other input. standard distribution system that provides • Low Output Phase Noise multiple features to ensure continuous distri- • High Isolation/Low Cross-Talk • Alarm-inputs feature The 58502A is bution of your critical signals. It is designed Between Output Channels to meet today’s demanding requirements for compatible with the alarm signals from the 58503A GPS Time and Frequency Reference frequency distribution in manufacturing, R&D, • Autoswitching Between Two Inputs and standards lab environments. It also Receiver and the 5071A Primary Frequency • Easy-to-Read Front Panel Standard. If the alarm of one of these sources provides economical distribution of precision Status Lights signals from cesium, rubidium, quartz or GPS is active, and this source is driving the distri- bution amplifier outputs, the 58502A will • frequency standards. Channel Fault Alarm automatically switch to a backup source. In addition, this change will be reflected in the The 58502A Broadband Distribution Amplifier features low signal distortion and high 58502A alarm outputs so it may be monitored by external equipment. isolation between output channels. Low output phase noise also helps maintain Autoswitching between two inputs ensures signal integrity. continuous availability of critical frequencies, and a fault alarm is activated when the system CONTINUOUS AVAILABILITY OF does not function correctly. CRITICAL FREQUENCIES The 58502A Broadband Distribution Amplifier These alarm and switching features can also has two important features that ensure your be monitored and controlled through the critical frequencies are always present. RS-232C interface. 58502A Broadband Distribution Amplifier SIMPLIFIED VERIFICATION OF PERFORMANCE FOR YOUR SYMMETRICOM’S COMPLETE SOLUTION SYSTEM HEALTH DEMANDING APPLICATIONS The 58502A is an excellent companion to The RS-232C interface allows you to While cost per channel has been lowered, the 58503B. Combined, they give you a query the individual distribution input and no compromises have been made in signal very stable, redundant frequency reference. output channels for the presence or distribution quality. The amplifier provides absence of a signal. Easy-to-read front high channel-to-channel isolation and low panel status lights also provide you with a phase noise for demanding applications. quick visual indication of individual chan- The 58502A has an internal automatic nel health. These features greatly simplify gain control that ensures extremely low monitoring the system. AM-to-PM conversion. 58502A Specifications ENVIRONMENTAL SPECIFICATIONS • Temperature Operating: 0° C to +55° C ELECTRICAL SPECIFICATIONS Non-operating: 40° C to +70° C • Input, A or B EMI: CISPR 11, Group 1, Class c Frequency range: 0.1 MHz to 10 MHz • Remote system interface and control Impedance: 50Ω nominal SWR <1.5 Data communications: RS-232C, DTE Amplitude: +15dBm maximum Connector: DE-9P (male) +7dBm minimum • Alarm/status input and output Connector: BNC (female) Connector: DE-9P (male) • Outputs (Into 50Ω) Normal state: TTL high Amplitude: +13dBm, +1dB/–3dB Alarm state: TTL low Harmonics: <–32dBc Output configuration: Open-collector output, 10k Ω pull-up (for Option 010) <–20dBc to 5 Vdc Spurious: <–110dBc, <–113 typical • Power requirements (for Option 010) <–80dBc AC input: 100 to 132 or 175 to 240 Vac Connectors: BNC (female) 47 to 63 Hz • Mechanical specifications 80 VA Max Weight: 2.95 kg • Warranty: 12 months Shipping weight: 6.35 kg Dimensions: 45 mm H × 426 mm W × 344 mm D AVAILABLE OPTIONS • Option 010: Internal backup oscillator SUPPLEMENTAL CHARACTERISTICS (10 MHz Precision oven controlled • Outputs: Single sideband phase noise quartz crystal) – replaces Input B (1 Hz bandwidth) • Stability • Offset frequency Phase noise –9 Temperature stability 6 × 10 (0° C to +55° C) –10 100 Hz <–127dBc/Hz Aging/day 5 × 1 –7 1 kHz <–142dBc/Hz Aging/year 1 × 10 –7 10 kHz <–148dBc/Hz Tuning range 7 × 10 (minimum) • Port-to-port isolation <–100dBc typical (measured by switching • Option: AX4: rack mount kit between open and short loads on output port and measuring associated phase noise ORDERING INFORMATION on adjacent output port) (Contact Symmetricom for availability and pricing.) • 58502A Broadband Distribution Amplifier • Option 010 Backup Oscillator SYMMETRICOM, INC. 2300 Orchard Parkway San Jose, California 95131-1017 tel: 408.433.0910 fax: 408.428.7896 info@symmetricom.com ©2003 Symmetricom. Symmetricom and the Symmetricom logo are registered trademarks of Symmetricom, Inc. All specifications subject to www.symmetricom.com change without notice. DS/58502A/D/0803/PDF