mc44144 Freescale Semiconductor, Inc, mc44144 Datasheet - Page 5

• Manufacturer Part Number: mc44144
• Description: Subcarrier Phase-locked Loop
• Manufacturer: Freescale Semiconductor, Inc

Linear and TTL Output Buffers
any specific logic family. If it is desired, Linear or TTL buffers
can be added externally. Figure 3 shows an example of a
MOTOROLA ANALOG IC DEVICE DATA
The output buffers of the MC44144 are not designed to
4X Subcarrier
Output or 1X
Subcarrier
4X Subcarrier
Output or 1X
Output
Subcarrier
Output
1000 F
C in
1.8k
R 2
0.01 F
C 2
100pF
+5.0V
C 1
10k
R 2
R 1
3.3k
Figure 3. Linear Buffer
R 5
56
R 3
300
Figure 4. TTL Buffer
1
2
3
4
5
6
7
13
11
9
5
3
1
MC44144
MC3346
MC74LS04
Linear buffer using an MC3346 Transistor array; virtually any
utility transistor can be used. Figure 4 shows a TTL type
buffer using an MC74LS04 buffer.
1.0k
R 3
14
13
12
11
10
9
8
+5.0V
R 4
430
12
10
8
6
4
2
1000 F
C o
C 2
47pF
Linear Output
TTL Output
5