MC100EL1648DT ON Semiconductor, MC100EL1648DT Datasheet - Page 10

• Manufacturer Part Number: MC100EL1648DT
• Manufacturer: ON Semiconductor

Specifications of MC100EL1648DT

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: TSSOP
• Pin Count: 8
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

internally by the AGC pin. Since the voltage swing of the
tank circuit provides the drive for the output buffer, the AGC
potential directly affects the output waveform. If it is desired
to have a sine wave at the output of the MC100EL1648, a
series resistor is tied from the AGC point to the most
negative power potential (ground if positive volt supply is
used, −5.2 V if a negative supply is used) as shown in
Figure 13. Method of Obtaining a Sine−Wave Output
The peak−to−peak swing of the tank circuit is set
10
12
1
7
WAVE−FORM CONDITIONING − SINE OR SQUARE WAVE
+5.0Vdc
14
8
3
5
Output
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Figure 13. At frequencies above 100 MHz typical, it may be
desirable to increase the tank circuit peak−to−peak voltage
in order to shape the signal into a more square waveform at
the output of the MC100EL1648. This is accomplished by
tying a series resistor (1.0 kW minimum) from the AGC to
the most positive power potential (+5.0 V if a positive volt
supply is used, ground if a −5.2 V supply is used). Figure 14
illustrates this principle.
Figure 14. Method of Extending the Useful Range
of the MC100EL1648 (Square Wave Output)
10
12
1
7
+5.0Vdc
14
8
3
5
1.0k min
Output