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For complete documentation, see the data sheet.

Printed On: 7/11/2015

MC100EL1648: Voltage Controlled Oscillator, ECL, 5.0 V

Product Description
The MC100EL1648 requires an external parallel tank circuit consisting of the inductor (L) and capacitor (C). A varactor diode may be incorporated into the tank circuit to provide a voltage variable input for the oscillator (VCO). This device may also be used in many other applications requiring a fixed frequency clock. The MC100EL1648 is ideal in applications requiring a local oscillator. Systems include electronic test equipment and digital high-speed telecommunications.

The MC100EL1648 is based on the VCO circuit topology of the MC1648. The MC100EL1648 uses advanced bipolar process technology which results in a design which can operate at an extended frequency range.

The ECL output circuitry of the MC100EL1648 is not a traditional open emitter output structure and instead has an on-chip termination resistor with a nominal value of 510 ohms. This facilitates direct ac-coupling of the output signal into a transmission line. Because of this output configuration, an external pull-down resistor is not required to provide the output with a dc current path. This output is intended to drive one ECL load. If the user needs to fanout the signal, an ECL buffer such as the MC10EL16 Line Receiver/Driver should be used

NOTE: The MC100EL1648 is NOT useable as a crystal oscillator.
Features
 
  • Typical Operating Frequency Up to 1100 MHz
  • Low-Power 19 mA at 5.0 Vdc Power Supply
  • Phase Noise -90 dBc/Hz at 25 kHz Typical
  • ESD Protection: >2 KV HBM, >100 V MM
  • PECL Mode Operating Range: VCC= 5.0 V with VEE= 0 V
  • NECL Mode Operating Range: VCC= 0 V with VEE= -5.2 V
  • Input Capacitance= 6.0 pF (TYP)
  • Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
  • Maximum Series Resistance for L (External Inductance)= 50 W (TYP)
  • Moisture Sensitivity Level 1. For Additional Information, see Application Note AND8003/D
Selected Electrical Specifications

Product Compliance Status Description Input Level Output Level fMax Typ (MHz) VCC Typ (V) Duty Cycle (%) Package Type
 Pb-free   Active     Voltage Controlled Oscillator, ECL, 5.0 V   ECL   ECL   1100   5.5   50   SOIC-8 
 Pb-free   Active     Voltage Controlled Oscillator, ECL, 5.0 V   ECL   ECL   1100   5.5   50   SOIC-8 
 Pb-free 
 Halide free 
 Active     Voltage Controlled Oscillator, ECL, 5.0 V   ECL   ECL   1100   5.5   50   TSSOP-8 
 Pb-free 
 Halide free 
 Active     Voltage Controlled Oscillator, ECL, 5.0 V   ECL   ECL   1100   5.5   50   TSSOP-8 
 Pb-free 
 Halide free 
 Active     Voltage Controlled Oscillator, ECL, 5.0 V   ECL   ECL   1100   5.5   50   DFN-8 
Package Availability
Type
PB free
Standard
DFN-8 x  
SOIC-8 x  
TSSOP-8 x