ON Semiconductor MC100EL1648DG

Description
The MC100EL1648 is a voltage-controlled oscillator amplifier that requires an external parallel tank circuit consisting of an inductor (L) and capacitor (C). A varactor diode can be incorporated into the tank circuit to provide a voltage-variable input for the oscillator (VCO). This device can also be used in other applications requiring a fixed-frequency clock.
The MC100EL1648 is based on the VCO circuit topology of the MC1648. It uses advanced bipolar process technology, resulting in a design that can operate at an extended frequency range.
The ECL output circuitry of the MC100EL1648 has an on-chip termination emitter resistor (RE) with a nominal value of 510 ohms. This facilitates direct AC-coupling of the output signal into a transmission line. An external pull-down resistor is not required to provide the output with a DC current path. The output is intended to drive one ECL load (3.0 pF). If fanning out the signal is necessary, an ECL buffer such as the EL16 (EL11, EL14) type Line Receiver/Driver should be used.

Features
Typical operating frequency up to 1100 MHz
Low-power: 19 mA at 5.0 Vdc power supply
PECL mode operating range: Vcc = 4.2 V to 5.5 V with VEE = 0 V
NECL mode operating range: Vcc = 0 V with VEE = -4.2 V to -5.5 V
Input capacitance = 6.0 pF (TYP)
Pb-Free packages are available

Applications
Local oscillator
Electronic test equipment
Digital high-speed telecommunications