Articles by Z-Communications Inc.

Z-Communications Inc. announces a new RoHS compliant Fixed Frequency Synthesizer model SFS3900A-LF in S-band. The SFS3900A-LF is a single frequency synthesizer that operates at 3900 MHz. This synthesizer features a typical phase noise of -88 dBc/Hz @ 10 KHz offset and typical sideband spurs of -65 dBc. The SFS3900A-LF...

Z-Communications Inc. announces a new RoHS compliant voltage-controlled oscillator (VCO) model ZRO1860A1LF in L-band. The ZRO1860A1LF operates at 1860 MHz with a tuning voltage range of 0.5 to 4.5 VDC. This VCO features a typical phase noise of -118 dBc/Hz at 10 kHz offset and a typical tuning sensitivity...

Z-Communications Inc. announces a new RoHS compliant voltage-controlled oscillator (VCO) model ZRO1833A1LF in L-band. The ZRO1833A1LF operates at 1832 to 1834 MHz with a tuning voltage range of 0.5 to 4.5 VDC. This VCO features a typical phase noise of -117 dBc/Hz at 10 kHz offset and a typical...

Modern digital communication systems using complex modulations such as Orthogonal Frequency Division Multiplexing (OFDM) or Quadrature Amplitude Modulation (QAM) require controlling bit error rate (BER) in order to achieve a given signal-to-noise ratio (SNR). The achievable BER is a function of many system parameters. Most important among them is...

Z-Communications Inc. announces the release of a RoHS compliant coaxial resonator-based VCO in the UHF-band. The new model, ZRO0915C2LF, which is the second VCO of an exciting new series of products in development by Z-COMM, operates from 902 to 928 MHz with excellent linear tuning voltage range of 0-11...

PRODUCT FEATURES Ultraminiature VCOs for Wireless Applications Z-Communications Inc. San Diego, CA M any electronics manufacturers in the subscriber industry have realized tremendous reductions in semiconductor and passive packaged products since the advent of surface-mount assembly equipment in the mid-1980s. This has been evidenced of late with the introduction...

Ultra-low Noise VCOs Z-Communications Inc. San Diego, CA Currently, there is a demand for lower noise performance and lower cost VCOs, especially in the upcoming personal communications service and digital radio markets. In these applications, both the Colpitts configuration, shown in Figure 1 , and the common-base configuration, shown...