These four devices are high frequency oscillator gain stages supporting both LVPECL or LVDS on the high gain outputs in 3.3-V or 2.5-V systems.Additionally, provides the option of both single-ended input (PECL levels on the SN65LVx18) and fully differential inputs on the SN65LVx19.
The SN65LVx18 provides the user a Gain Control (GC) for controlling the Q output from 300 mV to 860 mV either by leaving it open (NC), grounded, or tied to VCC. (When left open, the Q output defaults to 575 mV.) The Q on the SN65LVx19 defaults to 575 mV as well.
Both devices provide a voltage reference (VBB) of typically 1.35 V below VCC for use in receiving single-ended PECL input signals. When not used, VBB should be unconnected or open.
All devices are characterized for operation from -40°C to 85°C.
Feature
- Low-Voltage PECL Input and Low-Voltage PECL or LVDS Outputs
- Clock Rates to 1 GHz
- 250-ps Output Transition Times
- 0.12 ps Typical Intrinsic PhaseJitter
- Less than 630 ps Propagation Delay Times
- 2.5-V or 3.3-V Supply Operation
- 2-mm x 2-mm Small-Outline No-Lead Package
- APPLICATIONS
- PECL-to-LVDS Translation
- Clock Signal Amplification
