Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

UPD17708 Datasheet(PDF) 285 Page - Renesas Technology Corp

Part # UPD17708
Description  MOS INTEGRATED CIRCUIT
PDF  358 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD17708 Datasheet(HTML) 285 Page - Renesas Technology Corp

Back Button UPD17708 Datasheet HTML 281Page - Renesas Technology Corp UPD17708 Datasheet HTML 282Page - Renesas Technology Corp UPD17708 Datasheet HTML 283Page - Renesas Technology Corp UPD17708 Datasheet HTML 284Page - Renesas Technology Corp UPD17708 Datasheet HTML 285Page - Renesas Technology Corp UPD17708 Datasheet HTML 286Page - Renesas Technology Corp UPD17708 Datasheet HTML 287Page - Renesas Technology Corp UPD17708 Datasheet HTML 288Page - Renesas Technology Corp UPD17708 Datasheet HTML 289Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 285 / 358 page
background image
283
µPD17704, 17705, 17707, 17708, 17709
18.4 Using IF Counter
The following sections 18.4.1 through 18.4.3 describe how to use the hardware of the IF counter, a program
example, and count error.
18.4.1 Using hardware of IF counter
Figure 18-9 shows the block diagram when the P1C0/FMIFC and P1C1/AMIFC pins.
As shown in the figure, the IF counter uses an input pin with an AC amplifier, the DC component of the input signal
must be cut with a capacitor.
When the P1C0/FMIFC or P1C1/AMIFC pin is selected for the IF counter function, switch SW turns ON, and the
voltage level on each pin reaches about 1/2VDD.
If the voltage has not risen to a sufficient intermediate level at this time, the IF counter does not operate normally
because the AC amplifier is not in the normal operating range.
Therefore, make sure that a sufficient wait time elapses after each pin has been specified to be used for the IF
counter until counting is started.
Figure 18-9. IF Count Function Block Diagram of Each Pin
To internal counter
SW
R
C
FMIFC
AMIFC
External frequecny



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com