MC100EL1648D ON Semiconductor, MC100EL1648D Datasheet - Page 5

• Manufacturer Part Number: MC100EL1648D
• Description: VCO Oscillators 5V ECL VCO
• Manufacturer: ON Semiconductor

Specifications of MC100EL1648D

• Package / Case: SOIC-8
• Supply Voltage: 5 Volts
• Product: VCO
• Lead Free Status / Rohs Status: No RoHS Version Available

V
Test Point
IN
0.1mF
1 KW
Tank #1
Tank #2
V
*
EE
L
100 mF
C
V
8 (10)
8 (10)
EE
1 (12)
100 mF
1 (12)
GENERIC TEST CIRCUITS: Bypass to Supply Opposite GND
L
0.01 mF
C
0.1 mF
0.1 mF
Figure 3. Typical Test Circuit with Alternate Tank Circuits
0.01 mF
V
3 (1)
P-P
3 (1)
6 (7) 7 (8)
6 (7) 7 (8)
0.1 mF
V
CC
Tank Circuit Option #1, Varactor Diode
t
a
V
0.1 mF
Figure 4. Output Waveform
Tank Circuit Option #2, Fixed LC
CC
t
b
0.1 mF
2 (14)
5 (5)
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4 (3)
0.1 mF
0.1 mF
2 (14)
5 (5)
0.1 mF
5
4 (3)
PRF = 1.0MHz
Duty Cycle (Vdc) -
F
OUT
**
F
OUT
L = Micro Metal torroid #T20−22, 8 turns #30
C = MMBV609
* Use high impedance probe (>1.0 MW must be
used).
** The 1200 W resistor and the scope termination
impedance constitute a 25:1 attenuator probe.
L = Micro Metal torroid #T20−22, 8 turns #30
C = 3.0−35pF Variable Capacitance (@ 10 pF)
Note 1 Capacitor for tank may be variable type.
Note 2 Use high impedance probe (> 1 MW ).
8 pin (14 pin) Lead Package
8 pin (14 pin) Lead Package
Coax shall be CT−070−50 or equivalent.
t a
t b
Enameled Copper wire (@ 40 nH)
Enameled Copper wire (@ 40 nH)
(See Tank Circuit #3.)