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Cell-phone Application

System View | Block Diagram
Protection Area Illustration (click to open larger image in new window)
  1. Antenna
  2. Battery
  3. Battery Connector
  4. DC Power Port
  5. Earphone / Microphone
  6. Frontend IC
  7. I/O Ports
  8. Keyboard Connector
  9. Keypad Buttons
  10. Mini USB 2.0 Port
  11. RX/TX Switch IC
  12. SIM Card Connect

Keyboard Connection Protection

Problem: Electrostatic Discharge (ESD)

An Electrostatic discharge (ESD) can result in either catastrophic or latent damage of the equipment.

 

Solution: PESD devices

Extremely low capacitance ESD protection devices (PESD) shunt ESD away from sensitive circuitry in electronic devices without inducing signal distortion.

 

Read more about the Raychem ESD protection device: PESD


Applicable Product(s): PESD0402, PESD0603.
Download PESD Datasheet - (pdf 318 KB)

 

Circuit Diagram / Schematic

 

Application Notes:

ESD Protection for USB Ports - (pdf 411KB)
ESD Protection for HDMI Ports - (pdf 326KB)

Related Technical Information:
ESD Technology Fundamentals

 

Competitor Cross-reference

Cross-reference competitor products

Microphone / Earphone I/O Ports (mini) USB 2.0 Port SIM Card Connect RX/TX Switch IC SIM Card Connect RX/TX Switch IC (mini) USB 2.0 Port AC/DC Power Adapter (wall-wart) AC/DC Power Adapter (wall-wart) Microphone / Earphone Microphone / Earphone Keyboard Buttons Keyboard Connector Keyboard Connector I/O Ports Frontend IC Frontend IC Battery Connector Battery Battery Antenna Antenna DC Power Port DC Power Port Keyboard Buttons I/O Ports (mini) USB 2.0 Port SIM Card Connect RX/TX Switch IC AC/DC Power Adapter (wall-wart) Microphone / Earphone Keypad Buttons Keyboard Connector I/O Ports Frontend IC Battery Connector Battery Antenna DC Power Port