BTM1A Agere Systems, BTM1A Datasheet - Page 12

• Manufacturer Part Number: BTM1A
• Description: Dual Differential Transceivers--BTK1A And BTM1A
• Manufacturer: Agere Systems

BTK1A and BTM1A
Handling Precautions
CAUTION: This device is susceptible to damage as a result of electrostatic discharge. Take proper
When handling and mounting line driver products, proper precautions should be taken to avoid exposure to
electrostatic discharge (ESD). The user should adhere to the following basic rules for ESD control:
1. Assume that all electronic components are sensitive to ESD damage.
2. Never touch a sensitive component unless properly grounded.
3. Never transport, store, or handle sensitive components except in a static-safe environment.
ESD Failure Models
Agere employs two models for ESD events that can cause device damage or failure:
1. A human-body model (HBM) that is used by most of the industry for ESD-susceptibility testing and protection-
2. A charged-device model (CDM), which many believe is the better simulator of electronics manufacturing
Table 8 and Table 9 illustrate the role these two models play in the overall prevention of ESD damage. HBM ESD
testing is intended to simulate an ESD event from a charged person. The CDM ESD testing simulates charging and
discharging events that occur in production equipment and processes, e.g., an integrated circuit sliding down a
shipping tube.
The HBM ESD threshold voltage presented here was obtained by using these circuit parameters.
Table 8. Typical ESD Thresholds for Data Transmission Transceivers
Table 9. ESD Damage Protection
12
design evaluation. ESD voltage thresholds are dependent on the critical parameters used to define the model.
A standard HBM (resistance = 1500 , capacitance = 100 pF) is widely used and, therefore, can be used for
comparison purposes.
exposure.
All other pins
Control
Model
BTM1A
Device
BTK1A
precautions during both handling and testing. Follow guidelines such as JEDEC Publication
No. 108-A (Dec. 1988).
Human-body model (HBM)
Antistatic flooring
Wrist straps
ESD shoes
HBM Threshold
Personnel
2000
800
ESD Threat Controls
Charged-device model (CDM)
Static-dissipative materials
CDM Threshold
Air ionization
Processes
1000
1000
Agere Systems Inc.
October 2001