Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

EM1402 Datasheet(PDF) 4 Page - Protek Devices

Part No. EM1402
Description  3 EMI FILTER/ 2 TVS ARRAY
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PROTEC [Protek Devices]
Direct Link  http://www.protekdevices.com
Logo PROTEC - Protek Devices

EM1402 Datasheet(HTML) 4 Page - Protek Devices

  EM1402 Datasheet HTML 1Page - Protek Devices EM1402 Datasheet HTML 2Page - Protek Devices EM1402 Datasheet HTML 3Page - Protek Devices EM1402 Datasheet HTML 4Page - Protek Devices EM1402 Datasheet HTML 5Page - Protek Devices EM1402 Datasheet HTML 6Page - Protek Devices  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
4
05219.R1 2/07
www.protekdevices.com
EM1402
APPLICATION NOTE
The EM1402 provides a bidirectional filter and protector
for all the signals and the power line on the SIM (sub-
scriber indenty module) card connector. SIM cards are
found in all GSM cellular phones and in some other
handheld devices or card readers. The ESD diodes
protect the controller against possible ESD strikes that
may occur when the connector pins are exposed during
direct contact or during insertion of the SIM card into the
card slot. The EMI filter suppresses all high-frequency
noise, preventing the unwanted EMI signals from both
entering and exiting the main board. The signals that
interface with the SIM card are the Reset, the Clock and
the bidirectional data I/O as shown in Figure 1.
For best filter and ESD performance, both ground bumps
(B1, B2) of the EM1402 should be directly connected to
the ground plane. A small capacitor of about 1µF is
required next to the V
CC pin of the SIM connector in order
to improve stability of the SIM card supply rail.
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
Circuit board layout is critical for Electromagnetic
Compatibility (EMC) protection. The following guidelines
are recommended:
The protection device should be placed near the
input terminals or connectors, the device will divert
the transient current immediately before it can be
coupled into the nearby traces.
The path length between the TVS device and the
protected line should be minimized.
All conductive loops including power and ground
loops should be minimized.
The transient current return path to ground should be
kept as short as possible to reduce parasitic
inductance.
Ground planes should be used whenever possible.
For multilayer PCBs, use ground vias.
Controller
with logic
level translator
100 Ohm
47 Ohm
100 Ohm
RST
CLK
I/O
VCC
1µF
GND
GND
5V/3V/1.8V
Data I/O
Clock
Reset
SIM Card Connector
VCC
supply
(5V, 3.3V or 1.8V)
Figure 1. Typical Application for SIM Card Interface


Similar Part No. - EM1402

ManufacturerPart No.DatasheetDescription
Protek Devices
Protek Devices
EM1402 PROTEC-EM1402 Datasheet
106Kb / 6P
   3 EMI FILTERS/2 TVS ARRAYS
More results

Similar Description - EM1402

ManufacturerPart No.DatasheetDescription
Protek Devices
Protek Devices
EM4DLP-100L PROTEC-EM4DLP-100L Datasheet
74Kb / 4P
   EMI FILTER/TVS ARRAY
EM6D-100-4D PROTEC-EM6D-100-4D Datasheet
83Kb / 4P
   EMI FILTER/TVS ARRAY
EMIF4-100LFC PROTEC-EMIF4-100LFC_07 Datasheet
88Kb / 5P
   EMI FILTER/TVS ARRAY
EMIF6-100LFC PROTEC-EMIF6-100LFC_07 Datasheet
96Kb / 5P
   EMI FILTER/TVS ARRAY
EM6D100L PROTEC-EM6D100L Datasheet
88Kb / 4P
   EMI FILTER/TVS ARRAY
EMF01-100 PROTEC-EMF01-100 Datasheet
95Kb / 4P
   EMI FILTER/TVS ARRAY
EM02-100 PROTEC-EM02-100 Datasheet
80Kb / 4P
   EMI FILTER/TVS ARRAY
EM4D-100L PROTEC-EM4D-100L_11 Datasheet
744Kb / 7P
   emi filter/tvs array
EM4DLP-100L PROTEC-EM4DLP-100L_11 Datasheet
746Kb / 7P
   emi filter/tvs array
EM1631-08DSLP PROTEC-EM1631-08DSLP Datasheet
635Kb / 7P
   emi filter/tvs array
More results


Html Pages

1  2  3  4  5  6 


Datasheet Download

Go To PDF Page


Link URL




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

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