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.