Integrated
Circuit
ICS1893AF
Systems, Inc.
Product Brief
3.3V 10Base-T/100Base-TX Integrated PHYceiver™
General
• DSP-based baseline wander correction to virtually
eliminate killer packets across temperature range of
-5º to +85º C.
The ICS1893AF is a lower cost, re-packaged version of
the ICS1893Y-10. The ICS1893AF is a fully integrated,
Physical Layer device (PHY) that is compliant with both
the 10Base-T and 100Base-TX CSMA/CD Ethernet
Standard, ISO/IEC 8802-3. The ICS1893AF uses the
same proven silicon as the ICS1893Y-10 but offers a
lower cost solution by using a lower cost 300mil 48-lead
SSOP package.
• Low-power, 0.35-micron CMOS (typically 400mW)
• Single-chip, fully integrated PHY provides PCS, PMA,
PMD and AUTONEG Sublayers of the IEEE Std.
• 10Base-T and 100Base-TX IEEE 8802-3 compliant
• Clock or crystal supported.
• Media Independent Interface (MII) supported.
All parametric specifications and timing diagrams for the
ICS1893Y-10 apply to the ICS1893AF. Refer to the
1893 Data Sheet for detailed specifications and timings.
• Managed or Unmanaged Applications
• 10M or 100M Half and Full Duplex Modes
• Auto-Negotiation with Next Page. Parallel detection
for Legacy products.
The ICS1893AF uses the same twisted-pair transmit and
receive circuits as the ICS1893Y-10, and the same
recommended board layout techniques apply to the
ICS1893AF.
• Fully-integrated, DSP-based PMD includes:
- Adaptive equalization and baseline wander correction
- Transmit wave shaping and stream cipher scrambler
- MLT-3 encoder and NRZ/NRZI encoder
The ICS1893AF is intended for Node applications using
the standard MII interface to the MAC.
• Highly configurable supports:
- Node applications, managed or unmanaged
All changes are listed in the ICS1893AF / ICS1893Y-10
Feature Set Comparison Table on page 2.
- 10M or 100M half and full duplex modes
• Loopback mode for Diagnostic Functions
• Small footprint 48-lead 300mil SSOP package.
ICS1893AF Features
• Single 3.3V power supply
• Supports category 5 cables with attenuation in excess
of 24dB at 100 MHz across a temperature range from -
5º to +85º C.
100Base-TX
• Clock Recovery
• Link Monitor
• Signal Detection
• Error Detection
PCS
PMA
TP_PMD
Interface
Mux
Integrated
Switch
• Framer
• MLT-3
Twisted Pair
Interface to
Magnetics
Modules &
RJ45
• CRS/COL Detection
• Parallel to Serial
• 4B/5B
• Stream Cipher
• Adaptive Equalizer
• Base Line Wander
• Correction
10/100 MII
MAC
Interface
10Base-T
MII
Extended
Register
Set
Low
Jitter
Auto-
Configuration
and
Negotiation
Clock
MII
Synthesizer
Status
Management
Interface
LEDs &
PHY Address
Clock
Power
ICS1893 Block Diagram
Page 1
Document Revision: 5 April 2002