The IDT1893BF is a low-power, physical-layer device (PHY) that supports the ISO/IEC 10Base-T and 100Base-TX Carrier-Sense Multiple Access/Collision Detection (CSMA/CD) Ethernet standards, ISO/IEC 8802-3. The IDT1893BF is intended for MII, Node applications that require the Auto-MDIX feature that automatically corrects crossover errors in plant wiring. The IDT1893BF incorporates Digital-Signal Processing (DSP) control in its Physical-Medium Dependent (PMD) sub layer. As a result, it can transmit and receive data on unshielded twisted-pair (UTP) category 5 cables with attenuation in excess of 24 dB at 100MHz. With this IDT-patented technology, the IDT1893BF can virtually eliminate errors from killer packets. The IDT1893BF provides a Serial-Management Interface for exchanging command and status information with a Station-Management (STA) entity. The IDT1893BF Media-Dependent Interface (MDI) can be configured to provide either half- or full duplex operation at data rates of 10 Mb/s or 100Mb/s.
特性
Supports category 5 cables with attenuation in excess of 24dB at 100 MHz.
Single-chip, fully integrated PHY provides PCS, PMA, PMD, and AUTONEG sub layers functions of IEEE standard.
10Base-T and 100Base-TX IEEE 8802.3 compliant
Single 3.3V power supply
Highly configurable, supports:
– Media Independent Interface (MII) – Auto-Negotiation with Parallel detection – Node applications, managed or unmanaged – 10M or 100M full and half-duplex modes – Loopback mode for Diagnostic Functions – Auto-MDI/MDIX crossover correction Low-power CMOS (typically 400 mW)
Power-Down mode typically 21mW
Clock and crystal supported
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 Small footprint 48-pin 300 mil. SSOP package
Also available in small footprint 56-pin 8x8 MLF2 package
Available in Industrial Temp and Lead Free
产品对比
应用
文档
设计和开发
模型
ECAD 模块
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.