ML12561
Crystal Oscillator
Legacy Device:
Motorola MC12561
The ML12561 is the military temperature version of the com-
mercial ML12061 device. It is for use with an external crystal to
form a crystal controlled oscillator. In addition to the fundamental
series mode crystal, two bypass capacitors are required (plus usual
power supply pin bypass capacitors). Translators are provided inter-
nally for MECL and TTL outputs.
•
•
•
•
Frequency Range = 2.0 to 20 MHz
Operating Temperature Range TA = –55° to +125°C
Single Supply Operation: +5.0 Vdc or –5.2 V DC
Three Outputs Available:
1.Complementary Sine Wave (600 mVpp typ)
2.Complementary MECL
3.Single Ended TTL
Figure 1. Block Diagram
Bias
Bypass
0.1
µF
7
VCC
AGC
Filter
0.1
µF
1 VCC
4
Sine Wave
Output
–
3
2
+
14
–
15
+
16
VCC
13
12
11
VCC
16
1
CERDIP 16 = E
CERAMIC PACKAGE
CASE 620
MECL
Output
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
CERDIP 16
12561/BEA
ML12561/BEA
Voltage
Reg.
Crystal
Osc.
AGC
Ampl./
AGC
Sine
to
MECL
MECL
to
TTL
Trans-
lator
10
TTL
Output
6
5
Crystal
8
VEE
9
VEE
Note: 0.1
µF
power supply
pin bypass capacitors
not shown.
/ML12561
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