3.3-V 10Base-T/100Base-TX Integrated PHYceiver™
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Overview
Description
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.
Features
- 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
Documentation
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PDF1.40 MB
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Datasheet
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End Of Life Notice
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End Of Life Notice
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End Of Life Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Design & Development
Software & Tools
Models
ECAD Models
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.
Product Options
Processing table
Part Number |
Pkg. Type |
Lead Count (#) |
Temp. Grade |
Pb (Lead) Free |
Carrier Type |
Buy / Sample |
|---|---|---|---|---|---|---|
| SSOP | 48 | I | Yes | Tube | Get Samples, | |
| SSOP | 48 | I | Yes | Reel | ||
| VFQFPN | 56 | I | Yes | Tray | Get Samples, | |
| VFQFPN | 56 | I | Yes | Reel |
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