Datasheet > TJA1101BHN

TJA1101BHN

更新时间： 2024-09-14 15:19:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
58页	1113K
描述
Ethernet PHY 100BASE-T1 single port

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TJA1101BHN 数据手册

TJA1101B

100BASE-T1 PHY for automotive Ethernet

Rev. 1 — 1 March 2021

Product data sheet

1 General description

The TJA1101B is a 100BASE-T1-compliant Ethernet PHY optimized for automotive use

cases such as gateways, IP camera links, radar modules, driver assistance systems and

back-bone networks. The device provides 100 Mbit/s transmit and receive capability over

a single unshielded twisted-pair cable, supporting a cable length of up to at least 15 m.

The TJA1101B has been designed for automotive robustness and ISO 26262, ASIL-A

compliance, while minimizing power consumption and system costs.

Being ASIL-A compliant, adequate safety features have been implemented to ensure that

ASIL requirements are met at system level. Additional documentation, including a safety

manual, is available on request.

The TJA1101B supports OPEN Alliance TC-10-compliant sleep and wake-up request

forwarding, with an always-on power domain connected directly to the battery supply

without the need for a dedicated voltage regulator.

2 Features and benefits

2.1 General

• 100BASE-T1 PHY

• MII- and RMII-compliant interfaces

• Compact 36-pin HVQFN package (6 × 6 mm) for PCB space-constrained applications

• ISO 26262, ASIL-A compliant

2.2 Optimized for automotive use cases

• Transmitter optimized for capacitive coupling to unshielded twisted-pair cable

• Adaptive receive equalizer optimized for automotive cable length of up to at least 15 m

• Enhanced integrated PAM-3 pulse shaping for low RF emissions

• EMC-optimized output driver strength for MII and RMII

• MDI pins meet class IV conducted emission limit as per OPEN Alliance EMC

Specification 2.0

• MDI pins protected against ESD to ±6 kV HBM and ±8 kV IEC61000-4-2

• MDI pins protected against transients in automotive environment

• MDI pins do not need external filtering or ESD protection

• Automotive-grade temperature range from -40 °C to +125 °C

• Automotive product qualification in accordance with AEC-Q100

• Host-configurable MDI polarity

• Automated polarity detection and correction

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