Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ACS8520A Datasheet(PDF) 6 Page - Semtech Corporation

Part No. ACS8520A
Description  Synchronous Equipment Timing Source for Stratum 3/4E/4 and SMC Systems
Download  150 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
Logo 

ACS8520A Datasheet(HTML) 6 Page - Semtech Corporation

Zoom Inzoom in Zoom Outzoom out
 6 / 150 page
background image
ACS8520A SETS
ADVANCED COMMS & SENSING
FINAL
DATASHEET
Revision 1.00/September 2007© Semtech Corp.
Page 6
www.semtech.com
Table 3 Other Pins
Pin Number
Symbol
I/O
Type
Description
2TRST
I
TTLD
JTAG Control Reset Input: TRST = 1 to enable JTAG Boundary Scan
mode. TRST = 0 for Boundary Scan stand-by mode, still allowing correct
device operation. If not used connect to GND or leave floating.
7
TMS
I
TTLU
JTAG Test Mode Select: Boundary Scan enable. Sampled on rising edge
of TCK. If not used connect to VDD or leave floating.
8
INTREQ
O
TTL/CMOS
Interrupt Request: Active High/Low software Interrupt output.
9TCK
I
TTLD
JTAG Clock: Boundary Scan clock input. If not used connect to GND or
leave floating.
10
REFCLK
I
TTL
Reference Clock: 12.800 MHz (refer to section headed Local Oscillator
Clock).
18
SRCSW
I
TTLD
Source Switching: Force Fast Source Switching. See “Fast External
Switching Mode-SCRSW Pin” on page 15.
21
TDO
O
TTL/CMOS
JTAG Output: Serial test data output. Updated on falling edge of TCK. If
not used leave floating.
23
TDI
I
TTLU
JTAG Input: Serial test data Input. Sampled on rising edge of TCK. If not
used connect to VDD or leave floating.
24
I1
I
AMI
Input Reference 1: Composite clock 64 kHz + 8 kHz.
25
I2
I
AMI
Input Reference 2: Composite clock 64 kHz + 8 kHz.
27
TO8NEG
O
AMI
Output Reference 8: Composite clock, 64 kHz + 8 kHz negative pulse.
28
TO8POS
O
AMI
Output Reference 8: Composite clock, 64 kHz + 8 kHz positive pulse.
30
FrSync
O
TTL/CMOS
Output Reference 10: 8 kHz Frame Sync output.
31
MFrSync
O
TTL/CMOS
Output Reference 11: 2 kHz Multi-Frame Sync output.
34,
35
TO6POS,
TO6NEG
O
LVDS/PECL
Output Reference 6: Programmable, default 38.88 MHz, default type
LVDS.
36,
37
TO7POS,
TO7NEG
O
PECL/LVDS
Output Reference 7: Programmable, default 19.44 MHz, default type
PECL.
40,
41
I5POS,
I5NEG
I
LVDS/PECL
Input Reference 5: Programmable, default 19.44 MHz, default type
LVDS.
42,
43
I6POS,
I6NEG
I
PECL/LVDS
Input Reference 6: Programmable, default 19.44 MHz, default type
PECL.
45
SYNC2K
I
TTLD
External Sync input: 2 kHz, 4 kHz or 8 kHz for frame alignment.
46
I3
I
TTLD
Input Reference 3: Programmable, default 8 kHz.
47
I4
I
TTLD
Input Reference 4: Programmable, default 8 kHz.
48
I7
I
TTLD
Input Reference 7: Programmable, default 19.44 MHz.
51
I8
I
TTLD
Input Reference 8: Programmable, default 19.44 MHz.
52
I9
I
TTLD
Input Reference 9: Programmable, default 19.44 MHz.
53
I10
I
TTLD
Input Reference 10: Programmable, default 19.44 MHz.


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




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   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