поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

SA2532K датащи(PDF) 9 Page - Sames

номер детали SA2532K
подробное описание детали  SINGLE CHIP TELEPHONE DEMO BOARD
Download  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  SAMES [Sames]
домашняя страница  http://www.sames.co.za
Logo SAMES - Sames

SA2532K датащи(HTML) 9 Page - Sames

Back Button SA2532K Datasheet HTML 5Page - Sames SA2532K Datasheet HTML 6Page - Sames SA2532K Datasheet HTML 7Page - Sames SA2532K Datasheet HTML 8Page - Sames SA2532K Datasheet HTML 9Page - Sames SA2532K Datasheet HTML 10Page - Sames SA2532K Datasheet HTML 11Page - Sames SA2532K Datasheet HTML 12Page - Sames SA2532K Datasheet HTML 13Page - Sames Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 27 page
background image
AN1500A
sames
sames
sames
sames
9/27
To accommodate easy and uncomplicated redialing behind a PABX, a sliding cursor protocol is implemented:
if a manually entered digit string matches the contents of the LNR memory, pressing LNR will only dial out the
remaining digits :
example: desired number 0123456 (where 01 is the access code)
off-hook, manual entry = 01
-wait for dial tone
-23456
- line is busy
-on-hook
(LNR contents is 0123456)
off-hook, manual entry = 01
-wait for dial tone
- press LNR key:
LNR dials out the remaining digits: 23456
The SA2532K is designed for applications requiring a characteristic impedance of 600 Ohms, no connection should
be made to CI (pin 7) if a real impedance is required. Should a complex impedance be required a capacitor of
approximately 1/10 of the complex part of the impedance should be connected to CI. Every complex impedance
consists of a real and complex part. The ac impedance of the SA2532K is calculated by
ZAC = ZSYN + Z1
Where :
Z1 = the external resistor connected between pin 1(LS) and pin 27 (LI) . This resistor is also used by the device for
current monitoring and sets the DC resistance. To maintain correct operation the value of this resistor should be
set to 30 Ohm.
ZSYN = the internally synthezised impedance.
For real impedances
ZSYN = 19 * Z1
ZAC = (19*ZSYN) + Z1
ZAC = 20 * Z1 = 600 Ohm
If a impedance lower than ZAC is required, then a external parallel impedance should be added between LS and
VSS. To calculate the resulting AC impedance, any parallel impedance path between LS and VSS should be
considered. For example, if a bipolar line transistor is used, the resistance from the transistors base to VSS (ZP) is
in the order of 10K (R10). If a MOSFET is used then ZP is in the order of 100K which is negligible.
ZAC = 600//ZP
Care must be taken when selecting the value of ZP since the value chosen should be such that the line transistor is
driven into full saturation.
11.1 Demo board measurements:
11.1.1 Definition:
return loss is defined as:
returnloss
Zref
Zx
Zref
Zx
=
+
20*log
where:
Zref = the reference AC impedance (= the line termination)
Zx = the AC impedance of the telephone under test
10 Sliding cursor protocol and pause insertion
11 AC impedance of the SA2532K


Аналогичный номер детали - SA2532K

производительномер деталидатащиподробное описание детали
logo
Sames
SA2532KA SAMES-SA2532KA Datasheet
187Kb / 21P
   SINGLE CHIP TELEPHONE FOR INDIA
SA2532KB SAMES-SA2532KB Datasheet
187Kb / 21P
   SINGLE CHIP TELEPHONE FOR INDIA
More results

Аналогичное описание - SA2532K

производительномер деталидатащиподробное описание детали
logo
IC MICROSYSTEMS
ICM9102M ICMIC-ICM9102M Datasheet
339Kb / 3P
   SINGLE CHIP TELEPHONE BOARD MODULE
logo
National Semiconductor ...
LM4883-SQ_BOM-001A NSC-LM4883-SQ_BOM-001A Datasheet
43Kb / 1P
   Demo Board
logo
Melexis Microelectronic...
EVB90401 MELEXIS-EVB90401 Datasheet
269Kb / 6P
   MLX90401 Demo Board
logo
Sames
SA2532 SAMES-SA2532 Datasheet
583Kb / 22P
   VERSATILE SINGLE CHIP TELEPHONE
logo
International Rectifier
IRCS2277S IRF-IRCS2277S Datasheet
772Kb / 20P
   IRCS2277S Demo Board
logo
Sipex Corporation
SP6121EB SIPEX-SP6121EB Datasheet
419Kb / 6P
   Demo Board Manual
logo
List of Unclassifed Man...
FB80XED-LCD ETC-FB80XED-LCD Datasheet
24Kb / 1P
   7-Segment Demo board
FB80XED-RELAY ETC-FB80XED-RELAY Datasheet
26Kb / 1P
   7-Segment Demo board
logo
Teridian Semiconductor ...
71M6511-DB TERIDIAN-71M6511-DB Datasheet
2Mb / 115P
   Demo Board User’s Manual
Revision 5.4
73S8023C TERIDIAN-73S8023C_V01 Datasheet
816Kb / 19P
   Demo Board User Manual
Rev. 1.3
More results


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


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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