Although oscillators provide the cleanest source for REFCLK, oscillators over 100 MHz often cost more than may be acceptable for a specific design. In this case, customers have used clock generator chips to provide REFCLK at a lower cost than an oscillator. Un- fortunately, the cost reduction is accompanied by a sig- nificant increase in REFCLK jitter, which adds jitter to the transmitted serial data resulting in a reduction in the maximum transmission distance.
TPS2048ADG4 Price| Parameters | twc | tWH | tWP | tRC | tREH | tRP | tREA | tCEA |
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TPS2048ADG4 on stock The ZLDOis a high performance, ultra low dropout,low quiescent regulator.Available in SM8 surface mount packaging, the device is able to dissipate 2W(note l) allowing complete design flexibility with an input span upt0 20V and 300mA output current. The device quiescent is ImA (typ) at 300mA load current. A low battery comparator signifies impending battery failure, whilst a shutdown function reduces quiescent current to a mere ll0.A {typ). A precision bandgap reference gives + 2.5% output tolerance and good temperature characteristics over the range -40 to +850C. AC performance is enhanced via the use of a small external capacitor.
