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CDCDB400RHBT - Texas Instruments

Description: Clock Buffer 4-output clock buffer for PCIe Gen 1 to Gen 5 32-VQFN -40 to 105

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PCB Footprints
CDCDB400RHBT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RHB0032E
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3D Models
CDCDB400RHBT - Texas Instruments  - 3D model - Quad Flat No-Lead - RHB0032E
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CDCDB400RHBT Details

  • Manufacturer Part Number:

    CDCDB400RHBT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    VQFN-32

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    CDC

  • Input Conditioning:

    DIFFERENTIAL

  • JESD-30 Code:

    S-PQCC-N32

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Logic IC Type:

    LOW SKEW CLOCK DRIVER

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Number of True Outputs:

    8

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE WITH SERIES RESISTOR

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR, 7 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    46 mA

  • Prop. Delay@Nom-Sup:

    3 ns

  • Propagation Delay (tpd):

    3 ns

  • Same Edge Skew-Max (tskwd):

    0.05 ns

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    5 mm

  • fmax-Min:

    250 MHz

CDCDB400RHBT Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a differential pair routing with a 100-ohm differential impedance, and a solid ground plane underneath the device to minimize jitter and noise. Additionally, it's essential to keep the clock input traces short and away from noisy signals.
  • The CDCDB400RHBT output should be terminated with a 100-ohm differential resistor (e.g., 51 ohms in series with each output pin) to ensure proper signal integrity and minimize reflections.
  • The CDCDB400RHBT can tolerate up to ±300 ppm frequency deviation for the input clock signal. Exceeding this limit may affect the device's performance and jitter characteristics.
  • While the CDCDB400RHBT is designed for differential clock inputs, it can be used with a single-ended clock input by tying the negative input (CLKINB) to a quiet ground or a voltage divider. However, this may compromise the device's noise immunity and jitter performance.
  • The CDCDB400RHBT output frequency is determined by the input clock frequency and the divide ratio set by the DIV[2:0] pins. Consult the datasheet for the specific divide ratio settings and input frequency requirements to achieve the desired output frequency.

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CDCDB400RHBT Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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