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Analog Devices Inc. ADIN1101 Low-Power 10BASE-T1L PHY Transceivers

Analog Devices ADIN1101 Low-Power 10BASE-T1L PHY Transceivers are single-port devices designed for industrial Ethernet applications and are compliant with the IEEE® 802.3cg-2019™ Ethernet standard for long reach 10Mbps single pair Ethernet (SPE). The ADIN1101 integrates an Ethernet physical layer (PHY) core with all the associated analog circuitry, input/output clock buffering, management interface control register, and the subsystem registers, as well as the MAC interface and control logic to manage the reset, clock control, and pin configuration. The ADIN1101 supports cable reach of up to 1700 meters with autonegotiation enabled and ultra-low power consumption of 39mW.

The PHY core supports both 1.0Vp-p and 2.4Vp-p operating modes as specified in the IEEE 802.3cg standard. It can run on a single power supply of either 1.8V or 3.3V, with the 1.8V option enabling the 1.0Vp-p transmit level. To enhance system reliability, the ADIN1101 includes built-in voltage monitoring and power-on reset (POR) circuitry.

Communication between a host processor or MAC and the Analog Devices ADIN1101 is handled via a 2-wire MDIO interface, which provides access to the PHY core’s control and status registers. This interface is compatible with both Clause 22 and Clause 45 of the IEEE 802.3 standard.

Features

  • 10BASE-T1L IEEE Standard 802.3cg-2019 compliant
  • Cable reaches up to 1700m with 1.0Vp-p and 2.4Vp-p
  • Supports 1.0Vp-p and 2.4Vp-p transmit levels
  • MDI polarity detection and correction
  • Low 45mW power consumption
  • Diagnostics
    • Cable fault detection with TDR
    • Frame generator and checker
    • Link quality indicator with MSE
    • Frame generator and checker
    • Multiple loopback modes
    • IEEE test mode support
  • MII, RMII, and RGMII MAC interfaces
  • MDIO management interface
  • Unmanaged configuration using pin strapping
  • 2-pin MDI
  • Internal termination resistors and hybrid
  • 25MHz crystal or external clock input (50MHz for RMII)
  • Single or dual supply with 1.8V or 3.3V operation
  • 3.3V, 2.5V, or 1.8V MAC interface VDDIO supply
  • Integrated power supply monitoring and POR
  • EMC test standards
    • IEC 61000-4-4 EFT (±4kV)
    • IEC 61000-4-2 ESD (±4kV contact discharge)
    • IEC 61000-4-2 ESD (±8kV air discharge)
    • IEC 61000-4-5 surge (±4kV)
    • IEC 61000-4-6 conducted immunity (10V/m)
    • IEC 61000-4-3 radiated immunity (Class A)
    • EN 55032 radiated emissions (Class B)
  • Small 32-lead, 5mm × 5mm LFCSP package
  • Temperature ranges
    • -40°C to +85°C industrial
    • -40°C to +105°C extended

Applications

  • Process control
  • Factory automation
  • Building automation
  • Field instruments and switches

Specifications

  • 4mA to 8mA output drive current range
  • Clocks
    • External crystal (XTAL)
      • 25MHz typical frequency
      • ±30ppm frequency tolerance
      • <200µW typical drive level
      • 60Ω maximum Equivalent Series Resistance (ESR)
      • 1.5pF typical input capacitance
      • 18pF maximum load capacitance, 10pF typical
      • 2ms maximum start-up time
    • Clock input (CLK_IN)
      • 25MHz or 50MHz typical input frequency
      • 0.8Vp-p to 2.5Vp-p input voltage range
      • 45% to 55% input duty cycle
      • 6kΩ typical driving point resistance
      • 3pF typical driving point capacitance
      • 40ps maximum jitter tolerance (RMS)
    • CLK25_REF clock output
      • 25MHz typical frequency
      • 45% to 55% duty cycle
      • 40ps maximum long-term jitter tolerance (RMS)
  • Timing and latency
    • <1.8µs typical transmit latency (18-bit times)
    • <3.2µs typical receiver latency (32-bit times)
    • ≤5µs typical total latency
  • Power-up timing
    • 40ms maximum power supply ramp time
    • 20ms to 43ms minimum time interval to the internal power good range
    • 6µs to 14µs hardware configuration latch time
    • 50ms maximum management interface active
  • Power requirements
    • 1.71V to 3.46V supply voltage range
    • 1.0Vp-p transmit level (single supply)
      • 25mA typical supply current
      • 45mW power consumption with 100% data throughput, full activity; 11mW in software power-down mode
    • 2.4Vp-p transmit level (single supply)
      • 33mA typical supply current
      • 109mW power consumption with 100% data throughput, full activity; 22mW in software power-down mode
    • 2.4Vp-p transmit level (dual supply)
      • 15mA to 16.5mA typical supply current range
      • 81mW power consumption with 100% data throughput, full activity; 11mW in software power-down mode
  • Management interface timing
    • 400ns minimum MDC period
    • 100ns minimum MDC high time
    • 100ns minimum MDC low time
    • 5ns maximum MDC rise/fall time
    • 10ns minimum MDIO signal setup time to MDC
    • 10ns minimum MDIO signal hold time to MDC
    • 300ns maximum MDIO delay time to MDC

Functional Block Diagram

Block Diagram - Analog Devices Inc. ADIN1101 Low-Power 10BASE-T1L PHY Transceivers
Publicerad: 2025-09-10 | Uppdaterad: 2025-09-16