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1892Y-10LFT PDF预览

1892Y-10LFT

更新时间: 2024-01-01 23:46:51
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艾迪悌 - IDT /
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148页 663K
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1892Y-10LFT 数据手册

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Integrated Circuit Systems, Inc.  
Document Type: Data Sheet  
Document Stage: Released  
ICS1892  
10Base-T/100Base-TX Integrated PHYceiver  
General  
Features  
The ICS1892, an enhanced version of the ICS 1890, 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.  
Supports category 5 cables with attenuation in excess of  
24 dB at 100 MHz across a temperature range from -5° to  
+85° C  
DSP-based baseline wander correction to virtually  
eliminate killer packets across temperature range of from  
-5° to +85° C  
The ICS1892 incorporates digital signal processing (DSP)  
in its Physical Medium Dependent (PMD) sublayer. As a  
result, it can transmit and receive data on unshielded  
twisted-pair (UTP) category 5 cable with attenuation in  
excess of 24 dB at 100 MHz. With this ICS-patented  
technology, the ICS1892 can virtually eliminate errors from  
killer packets.  
Low-power, 0.5-micron CMOS  
Single 5.0-V power supply.  
Single-chip, fully integrated PHY provides PCS, PMA,  
PMD, and AUTONEG sublayers of IEEE standard  
10Base-T and 100Base-TX IEEE 802.3 compliant  
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 ICS1892 supports a broad range of applications: data  
terminal equipment (network interface cards and  
motherboards), switches, repeaters, bridges, and routers. Its  
Media Independent Interface (MII) supports direct  
chip-to-chip and motherboard-to-daughterboard  
connections as well as connections to an MII connector and  
cable. The ICS1892 also provides a Serial Management  
Interface for exchanging command and status information  
with a Station Management (STA) entity.  
Highly configurable design supports:  
– Node, repeater, and switch applications  
– Managed and unmanaged applications  
– 10M or 100M half- and full-duplex modes  
– Parallel detection  
– Auto-negotiation, with Next Page capabilities  
The ICS1892 Media Dependent Interface (MDI) can be  
configured to provide either half- or full-duplex operation at  
data rates of 10 MHz or 100 MHz. The MDI configuration  
can be done manually (with input pins or control register  
settings) or automatically (using the Auto-Negotiation  
features). When the ICS1892 Auto-Negotiation sublayer is  
enabled, it exchanges technology capability data with its  
remote link partner and automatically selects the  
highest-performance operating mode they have in common.  
MAC/Repeater Interface can be configured as:  
– 10M or 100M Media Independent Interface  
– 100M Symbol Interface (bypasses the PCS)  
– 10M 7-wire Serial Interface  
Provides Loopback Modes for Diagnostic Functions  
Small Footprint 64-pin Low-Profile LQFP and MQFP  
packages available  
ICS1892 Block Diagram  
100Base-T  
PCS  
Frame  
CRS/COL  
Detection  
10/100 MII or  
Alternate  
MAC/Repeater  
Interface  
Twisted-  
Pair  
Interface to  
Magnetics  
Modules and  
RJ45  
Interface  
MUX  
Integrated  
Switch  
Parallel to Serial  
4B/5B  
10Base-T  
Connector  
MII  
Low-Jitter  
Clock  
Synthesizer  
Auto-  
Negotiation  
Configuration  
and Status  
Extended  
Register  
Set  
MII Serial  
Management  
Interface  
Clock  
Power  
LEDs and PHY  
Address  
1892 Rev. D, 2/26/01  
ICS reserves the right to make changes in the device data identified in  
this publication without further notice. ICS advises its customers to  
obtain the latest version of all device data to verify that any information  
being relied upon by the customer is current and accurate.  

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