LANSDALE MC12019P Dual modulus prescaler Datasheet

ML12019
Dual Modulus Prescaler
MECL PLL COMPONENTS ÷20/21 DUAL MODULUS
SEMICONDUCTOR TECHNICAL DATA
Legacy Device: Motorola MC12019
The ML12019 is a divide by 20 and 21 dual modulus
prescaler. It will devide by 20 when the modulus control
input is HIGH and divide by 21 when the modulus control
input is LOW.
P DIP 8 = PP
PLASTIC PACKAGE
CASE 626-04
• 225 MHz Toggle Frequency
• Low–Power 7.5 mA Maximum at 5.5 V
SO 8 = -5P
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
• Control Input is Compatible with Standard
Motorola or Lansdale CMOS Synthesizers
CROSS REFERENCE/ORDERING INFORMATION
LANSDALE
PACKAGE
MOTOROLA
P-DIP 8
SO 8
• Emitter Follower Output
• Operating Temperature Range TA = –40 to 85°C
MC12019P
MC12019D
ML12019PP
ML12019-5P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
PIN CONNECTIONS
SIMPLIFIED BLOCK DIAGRAM
IN
NE
Out
Gnd
Control
Input
1
8
2
7
3
6
4
5
NC
V CC
S Gnd
S IN
(Top View)
1
Signal
Input
Signal
Gnd
0.001 µF
5
3
N / N+1
Output
6
0.001 µF
7
4
V
0.1 µF CC
10 k
Gnd
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LANSDALE Semiconductor, Inc.
ML12019
MAXIMUM RATINGS
Rating
Power Supply Voltage, Pin 7
Operating Temperature Range
Storage Temperature Range
Symbol
Value
Unit
VCC
8.0
Vdc
TA
–40 to +85
°C
Tstg
–65 to +175
°C
ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5 V; TA = –40 to 85°C), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Toggle Frequency (Sine Wave Input)
fmax
fmin
225
–
–
–
–
20
MHz
Supply Current
ICC
–
–
7.5
mA
Control Input HIGH ( ÷20)
VIH
2.0
–
–
V
Control Input LOW ( ÷21)
VIL
–
–
0.8
V
Output Swing Voltage (10 kΩ to ground)
Vout
600
–
1200
Input Voltage Sensitivity
20 MHz to 225 MHz
Vin
PLL Response Time (Notes 1 and 2)
tPLL
mVpp
mVPP
200
–
800
–
–
tout–70
ns
NOTES: 1. tPLL = the period of time the PLL has from the prescaler rising output tranistion (50%) to the modulus control input edge transition
(50%) to ensure proper modulus selection.
2. tout = period of output waveform.
Page 2 of 4
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Issue B
LANSDALE Semiconductor, Inc.
ML12019
Figure 1. Generic block diagram showing prescaler connection to
PLL device
Prescaler
PLL
Fout
Fin
ML145146
ML145158
ML145159
ML12019
MC in
MC
VCO
Loop Filter
Figure 1 shows a generic block diagram for connecting a prescaler to a PLL device
that supports dual modulus control. Application note AN535 decribes using a twomodulus prescaler technique.By using prescaler higher frequencies can be achieve
than by a single CMOS PLL device.
Page 3 of 4
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Issue B
LANSDALE Semiconductor, Inc.
ML12019
P DIP 8 = PP
PLASTIC PACKAGE
(ML12019PP)
CASE 626-04
Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lansdale does not assume any liability arising out of the application or use of any product or circuit
described herein; neither does it convey any license under its patent rights nor the rights of others. “Typical” parameters which
may be provided in Lansdale data sheets and/or specifications can vary in different applications, and actual performance may
vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s
technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc.
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Issue B
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