30332 Esperanza Rancho Santa Margarita, CA-92688 Tel: (949) 546-8000 Fax: (949) 546-8001 Tech-Support abracon.com Frequency Translator & Jitter Attenuator The ABFT series is an Ultra Low Jitter VCXO based frequency translator ideally suited to improve Jitter characteristics of the input signal. This device is designed to provide input clock smoothing - while providing Phase and Frequency Locked higher frequency translated output. Typical application would take a 10MHz reference frequency and phase and frequency lock it to either a 20MHz or a 40MHz Low Jitter VCXO. The implemented technology significantly attenuates the jitter content of the 10MHz reference signal while keeping the higher frequency RF Output - Frequency and Phase Coherent with the input 10MHz reference signal. Features: 5*7*2 mm SMT, RoHS Compliant reflow-able package Frequency translation to either 20MHz or 40MHz carrier +3.3V Supply Voltage Industrial operating temperature range (-40C to +85C) LVCMOS Output Internal absolute pull range > 100 ppm allowing for long term drift correction Applications: Frequency translation, clock smoothing and jitter attenuation of the input 10MHz reference Datacom - DSLAM, DSLAR, Access Nodes Cable modem head end Base Station - GSM, CDMA Telecom - SONET/SDH/ATM Block Diagram Mixer 20MHz or RF Output 40MHz 10MHz Reference Low Jitter VCXO Comparator Abracon Corporation (www.abracon.com) Page (1) of (4) 30332 Esperanza Rancho Santa Margarita, CA-92688 Tel: (949) 546-8000 Fax: (949) 546-8001 Tech-Support abracon.com 1.0 Electrical Specifications: Parameters Minimum Typical Maximum Units Notes Reference Input 10.000 MHz Reference Input Waveform Level1 (Logic High) 2.00 5.50 Volts CMOS & TTL Level0 (Logic Low) 0.80 Volts Compatible Rise & Fall Time 10.0 ns Duty Cycle 40 60 % Translated Output 20.000 MHz LVCMOS Standard Available Frequencies 20.000 & 40.000 MHz Operating Temperature Range -40 +85 C Current Drain 5.0 10.0 mA Supply Voltage (Vdd) 3.135 3.30 3.465 Volts Includes set tolerance, shift through reflow, All Inclusive Frequency Stability of stability over 50.00 ppm the VCXO temperature, load pulling, frequency pushing and 10-years of Aging Sufficient frequency pull is designed-in to VCXO pull range 100.0 ppm provide long-term frequency lock capability RF Output Waveform LVCMOS Level1 (Logic High) 0.9*Vdd Volts Level0 (Logic Low) 0.1*Vdd Volts Load 15 pf Rise & Fall Time 3.0 ns Duty Cycle 45 55 % Lock Time 3.0 5.0 ms Spectral Content Spurious Response -50 -70 dBc Phase Noise 20MHz Carrier (Vdd=3.3V) 1,000 Hz offset -134 dBc / Hz 10,000 Hz offset -150 dBc / Hz 100,000 Hz offset -154 dBc / Hz 1,000,000 Hz offset -155 dBc / Hz Abracon Corporation (www.abracon.com) Page (2) of (4)