Datasheet > TJA1102AHNS

TJA1102AHNS

更新时间： 2024-11-26 02:52:51

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
67页	695K
描述
100BASE-T1 dual/single PHY for automotive Ethernet

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TJA1102AHNS 数据手册

TJA1102A

100BASE-T1 dual/single PHY for automotive Ethernet

Rev. 1 — 7 June 2021

Product data sheet

1 General description

The TJA1102A is a 100BASE-T1-compliant dual-port 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 two unshielded twisted-pair cables, supporting a cable length

of up to at least 15 m. The TJA1102A has been designed for automotive robustness,

while minimizing power consumption and system costs. For added flexibility, a single

PHY version is available (TJA1102AS) in which one of the PHYs is disabled. Unless

otherwise specified, all references in this document to TJA1102A encompass both the

dual- and single-PHY variants.

The TJA1102A 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

• Dual-port 100BASE-T1 PHY; single-port operation possible

• Single-port variant available

• MII- and RMII-compliant interfaces

• HVQFN 56-pin package (8 × 8 mm)

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 ±6 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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