by EM Research Inc.
EM Research has developed the ZLX Series of drop-in frequency synthesizers with models operating from 800 MHz to 3.8 GHz that are replacements for many industry standard PLOs and synthesizers. The ZLX Series is a cost-effective replacement that provides design engineers with improved signal source performance without any need to modify the circuit board or design and can be used in a wide variety of applications.
The ZLX can be custom-designed to operate fixed or programmable from less than 800 MHz to over 3.8 GHz and is housed in a standard commercial surface-mount package. The ZLX offers extremely low phase noise; for example, less than -106 dBc/Hz at 10 kHz offset and -129 at dBc/Hz at 100 kHz offset at an output frequency of 3.1 GHz. The ZLX Series also provides low power consumption of less than 100 mW at +3.3 VDC operating voltage. Figure 1 shows sample phase noise plots for three different frequencies (1.26, 2.32 and 3.1 GHz).

Figure 1 Phase noise plots for 1.26, 2.32 and 3.1 GHz.
The bandwidth can be fixed or programmable (serial interface) up to 30 percent bandwidth with output power from 0 to +7 dBm. Table 1 shows typical performance parameters for various models over the frequency range available. All models are available in the drop-in replacement housing measuring 0.6 x 0.6 x 0.14 inches (15.24 x 15.24 x 3.6 mm). Figure 2 shows the outline drawing including pin outs.

Table 1 Typical Performance for Select Models

Figure 2 ZLX package outline and pin-out.
The ZLX Series is available for high volume production and can be used in a wide variety of applications including commercial wireless, base station and subsystems, mobile radios, SatCom, point-to-point/multi-point radios, WiMAX, 2G and 3G repeaters, CATV and wireless infrastructure. EM Research provides the option of RoHS and non-RoHS designs on all products including the ZLX Series.
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