FEATURES

⚫ Enables system designers to comply with:
− CISPR22 and FCC Part 15, Class B requirements for
Radiated and Conducted Emissions
− IEC 61000-4-3 requirements for Radiated and
Conducted Immunity, Level 3 or higher
− IEC 61000-4-2 ESD (Air Discharge) of ±25kV
− IEC 61000-4-2 ESD (Contact Discharge) of ±12kV
− Cable Discharge Event (CDE) of ±12kV
⚫ Provides up to 10dB of additional common mode noise
suppression over the frequency of 1MHz to 125MHz
when used with Ethernet magnetics
⚫ Robust built-in ESD suppressors protect the Ethernet
PHY and improve system ESD performance
⚫ JESD22-A114, ESD, HBM of ±8kV
⚫ Interfaces to standard Ethernet transformers and
10/100/1000 Ethernet PHYs
⚫ Uses a single standard power rail (3.3V or 2.5V)
⚫ Open drain output stage that can be biased from 1.8V
to 3.3V using transformer center-tap supply as needed
based on choice of Ethernet PHY.
⚫ Flow-through routing for ease of board layout
⚫ Typical power consumption of 90mW.
⚫ Low power mode available
⚫ Industrial temperature range (-40°C to +85°C)

TYPICAL APPLICATIONS

⚫ Ethernet systems requiring additional CM suppression
to meet EMC Class B emissions or higher EMI immunity
requirements and ESD protection
⚫ POE and Non-PoE Ethernet systems
⚫ VoIP Phones, IP Cameras, WAPs, Routers, Switches
⚫ Set Top Boxes, Networked Printers and Appliances,
Desktop and Laptop Computers

GENERAL DESCRIPTION

The AS1602 is a single-chip, highly integrated CMOS
solution for Common Mode (CM) noise suppression &
transient voltage protection in Ethernet applications.
The AS1602 EMI/ESD Suppressor has been architected
and designed to provide system level ESD protection and
EMI suppression in Ethernet products, enabling an easier
path to system EMC compliance.
The AS1602 utilizes Kinetic Technologies’s patented Active
Choke technology which offers superior Common Mode
reduction and immunity compared to passive filtering
techniques in Ethernet applications. The adaptive and
continuous suppression operates over the entire Ethernet
signal bandwidth, and it compensates for many variables
that are the source of common mode noise in Ethernet
systems. It also improves the differential-to-common mode
balance of the system. This enables system designers to
meet EMI emissions and EMI immunity requirements from
the start of the design.
In addition, the AS1602 includes highly robust ESD/Surge
protection diodes to protect the Ethernet PHY from various
transient overvoltage events. These are built using Kinetics'
proprietary design and layout techniques to safely deal with
very high current densities in a CMOS process without
creating voltage and/or thermal overstress that causes
damage to the device.
Each AS1602 supports two twisted pair interfaces. 10/100
applications require one AS1602 device while 10/100/1000
applications require two AS1602 devices. The AS1602 is
available in a small footprint 16-pin QSOP Reduction of
Hazardous Substance (RoHS) compliant package.