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843N571BKILF - Renesas Electronics

Description: The 843N571I is a PLL based clock synthesizer for use in Ethernet applications. The device uses Renesas' fourth generation FemtoClock™ NG technology for optimal high clock frequency and low phase noise performance, combined with a low power consumption and high power supply noise rejection. Using Renesas' latest FemtoClock NG PLL technology, the 843N571I achieves <0.3ps RMS phase jitter performance. 843N571I can synthesize 100MHz, 125MHz, 156.25MHz and a low frequency 33.33MHz CPU clock from a single device

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843N571BKILF - Renesas Electronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - NLG40P1-+-
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843N571BKILF - Renesas Electronics  - 3D model - Quad Flat No-Lead - NLG40P1-+-
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843N571BKILF Details

  • Manufacturer Part Number:

    843N571BKILF

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    VFQFPN

  • Pin Count:

    40

  • Manufacturer Package Code:

    NLG40P1

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • JESD-30 Code:

    S-XQCC-N40

  • JESD-609 Code:

    e3

  • Length:

    6 mm

  • Moisture Sensitivity Level:

    3

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Clock Frequency-Max:

    156.25 MHz

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC40,.24SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Primary Clock/Crystal Frequency-Nom:

    25 MHz

  • Seated Height-Max:

    1 mm

  • Supply Current-Max:

    250 mA

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    6 mm

  • uPs/uCs/Peripheral ICs Type:

    CLOCK GENERATOR, ETHERNET

843N571BKILF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the IC away from high-current paths and ensure good airflow around the device.
  • Use the ENx pins to sequence the startup and shutdown of each rail. Ensure that the input voltage is stable before enabling the output, and use a soft-start circuit to prevent inrush currents.
  • Choose output capacitors with low ESR (< 1 ohm) and high ripple current ratings. The recommended capacitance value is 10-22 uF, depending on the output voltage and current requirements.
  • Use the datasheet's recommended compensation network values as a starting point. Adjust the values based on the specific application's requirements, such as output voltage, current, and load capacitance.
  • The 843N571BKILF is available in a 40-pin QFN package. Ensure good thermal conduction by using a thermal pad on the PCB, and consider using a heat sink or thermal interface material for high-power applications.

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843N571BKILF Overview

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