DSP56156FV40 MOTOROLA [Motorola, Inc], DSP56156FV40 Datasheet - Page 71

• Manufacturer Part Number: DSP56156FV40
• Description: 16-bit Digital Signal Processor
• Manufacturer: MOTOROLA [Motorola, Inc]

66
Design Considerations
Analog I/O Considerations
Figure 45 shows three possible single-ended output configurations. Configuration (a) is highly
recommended. For configurations (b) and (c), an AC coupling capacitor is required since the
load resistor is tied to GNDA.
Figure 46 shows a recommended layout for power and ground planes.
GNDA
47 K¾
V
CCA
+
-
VREF
Digital Ground and
Power planes
(a)
47 K¾
47 K¾
Figure 45 Single-ended Output Configurations
84
1
Freescale Semiconductor, Inc.
Figure 46 Ground and Power planes
For More Information On This Product,
SPKP
SPKM
DSP56156 Data Sheet
Go to: www.freescale.com
0 < C ð 100 nF
Š 500
(b)
NC
SPKP
SPKM
Analog Ground and
Power planes
0 < C ð 100 nF
57
28
0 < C ð 100 nF
Š 500
Š 500
(c)
SPKP
SPKM
MOTOROLA