MC1648
L: Micro Metal torroid #T20–22, 8 turns #30 Enameled Copper wire.
C = 3.0–35pF
L=40nH
C=10pF
+5.0Vdc
0.1µF
10µF
14
1
10
12
1200*
L
C
0.1µF
3
SIGNAL
UNDER
TEST
5
B.W. = 10 kHz
0.1µF
Center Frequency = 100 MHz
Scan Width = 50 kHz/div
Vertical Scale = 10 dB/div
*
The 1200 ohm resistor and the scope termination impedance constitute a 25:1
attenuator probe. Coax shall be CT–075–50 or equivalent.
Figure 2. Spectral Purity of Signal Output for 200MHz Testing
TEST VOLTAGE/CURRENT VALUES
(Volts)
mAdc
@ Test
Temperature
V
V
V
I
L
IHmax
MC1648
–3.2
ILmin
EE
–30°C
+25°C
+85°C
–3.7
–3.85
–4.0
–5.2
–5.2
–5.2
–5.0
–5.0
–5.0
–3.35
–3.5
Note: SOIC “D” package guaranteed –30°C to +70°C only
ELECTRICAL CHARACTERISTICS (Supply Voltage = –5.2V)
–30°C
+25°C
Max
+85°C
Min
Symbol
Characteristic
Power Supply Drain Current
Logic “1” Output Voltage
Logic “0” Output Voltage
Bias Voltage
Min
Max
Min
Max
–
Unit
Condition
mAdc
I
E
–
–
–
41
–
Inputs and outputs open
V
V
V
–1.045 –0.815 –0.96
–0.75
–1.62
–3.45
–0.89
–1.83
–3.9
–0.64
Vdc
V
V
V
to Pin 12, I @ Pin 3
ILmin L
OH
–1.89
–3.6
–1.65
–3.3
–1.85
–3.75
–1.575 Vdc
–3.6 Vdc
to Pin 12, I @ Pin 3
IHmax L
OL
1
to Pin 12
ILmin
BIAS
Min Typ Max Min Typ Max Min Typ Max Unit
Condition
See Figure 3
V
Peak–to–Peak Tank Voltage
Output Duty Cycle
–
–
–
–
–
–
–
–
–
–
400
50
–
–
–
–
–
–
–
–
–
–
–
mV
%
P–P
Vdc
2
f
Oscillation Frequency
225
200 225
225
MHz
max
1. This measurement guarantees the dc potential at the bias point for purposes of incorporating a varactor tuning diode at this point.
2. Frequency variation over temperature is a direct function of the ∆C/∆ Temperature and ∆L/∆ Temperature.
HIPERCOMM
3
MOTOROLA
BR1334 — Rev 4
MOTOROLA [ MOTOROLA ]
