www.DataSheet4U.com
189
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
By integrating 14-bit resolution PWM pulses with an external low-pass filter, they can be converted to an analog
voltage and used for electronic tuning and D/A converter applications, etc.
The analog output voltage (V
AN
) used for D/A conversion with the configuration shown in Figure 8-12 is as follows.
16-bit compare register (CR00) value
V
AN
= V
REF
×
2
16
V
REF
: External switching circuit reference voltage
Figure 8-12. Example of D/A Converter Configuration with PWM Output
Figure 8-13 shows an example in which PWM output is converted to an analog voltage and used in a voltage
synthesizer type TV tuner.
Figure 8-13. TV Tuner Application Circuit Example
TO0/P30
Switching circuit
PWM signal
V
REF
Low-pass filter
Analog output (V
AN
)
PD78014,78014Y
µ
PD78014,78014Y
TO0/P30
2SC
2352
PC574J
V
SS
GND
Electronic
Tuner
0.22 F
0.22 F
0.22 F
100 pF
8.2 k
Ω
8.2 k
Ω
22 k
Ω
47 k
Ω
47 k
Ω
47 k
Ω
+110 V
µ
µ
µ
µ
µ
Содержание 78014Y Series
Страница 2: ...www DataSheet4U com 2 MEMO...
Страница 8: ...www DataSheet4U com 8 MEMO...
Страница 22: ...www DataSheet4U com 22 MEMO...
Страница 30: ...www DataSheet4U com 30 MEMO...
Страница 34: ...www DataSheet4U com 34 MEMO...
Страница 62: ...www DataSheet4U com CHAPTER 2 OUTLINE PD78014Y Subseries 62 MEMO...
Страница 78: ...www DataSheet4U com CHAPTER 3 PIN FUNCTION PD78014 Subseries 78 MEMO...
Страница 94: ...www DataSheet4U com CHAPTER 4 PIN FUNCTION PD78014Y Subseries 94 MEMO...
Страница 170: ...www DataSheet4U com CHAPTER 7 CLOCK GENERATOR 170 MEMO...
Страница 222: ...www DataSheet4U com CHAPTER 9 8 BIT TIMER EVENT COUNTER 222 MEMO...
Страница 230: ...www DataSheet4U com CHAPTER 10 WATCH TIMER 230 MEMO...
Страница 262: ...www DataSheet4U com CHAPTER 14 A D CONVERTER 262 MEMO...
Страница 318: ...www DataSheet4U com CHAPTER 15 SERIAL INTERFACE CHANNEL 0 PD78014 Subseries 318 MEMO...
Страница 408: ...www DataSheet4U com CHAPTER 16 SERIAL INTERFACE CHANNEL 0 PD78014Y Subseries 408 MEMO...
Страница 446: ...www DataSheet4U com CHAPTER 17 SERIAL INTERFACE CHANNEL 1 446 MEMO...
Страница 472: ...www DataSheet4U com CHAPTER 18 INTERRUPT FUNCTIONS AND TEST FUNCTION 472 MEMO...
Страница 502: ...www DataSheet4U com CHAPTER 22 PD78P014 78P014Y 502 MEMO...
Страница 520: ...www DataSheet4U com CHAPTER 23 INSTRUCTION SET 520 MEMO...