Texas Instruments CDC421A156RGET

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Marketplace | Cut Tape (CT)
Type Clock Generator
PLL Yes
Input LVCMOS, Crystal
Output LVPECL
Number of Circuits 1
Ratio - Input:Output 1:1
Differential - Input:Output No/Yes
Frequency - Max 156.25MHz
Divider/Multiplier Yes/No
Voltage - Supply 3V ~ 3.6V
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Supplier Device Package 24-VQFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments CDC421A156RGET is a high-performance clock generator featuring an integrated PLL. It accepts LVCMOS or crystal inputs and delivers a low-jitter LVPECL output at a fixed 156.25MHz. With a single circuit and a wide operating temperature range, this device is ideal for Ethernet, optical, and wireless applications.

  • Standard Frequency: Generates a 156.25MHz clock, widely used in 10GbE and 25GbE applications.
  • Low Jitter: The integrated PLL ensures clean clock signals, critical for high-speed data transmission.
  • Flexible Input: Accepts both LVCMOS and crystal sources, simplifying board design.
  • Wide Temperature Range: Operates reliably from -40°C to 85°C, suitable for outdoor and industrial environments.

Ethernet Networking

Provides a 156.25MHz reference clock for 10GbE and 25GbE PHYs, ensuring precise timing for high-speed data transmission.

Optical Transport

Generates a stable clock for OTN and SONET/SDH equipment, meeting the strict jitter requirements of optical networks.

Wireless Infrastructure

Delivers a clean clock for 5G base stations and remote radio heads, improving signal quality and synchronization.

FPGA and ASIC Clocking

Provides a high-frequency reference for high-performance FPGAs and ASICs, enabling reliable operation of high-speed transceivers.

Broadcast Video

Synchronizes 3G-SDI and 12G-SDI video equipment with a 156.25MHz reference, ensuring frame-accurate timing.

Data Center

Offers a stable clock for servers and storage systems, improving signal integrity and reducing bit errors.

Q: What type of device is the CDC421A156RGET?
A: It is a Clock Generator from Texas Instruments, designed to generate precise clock signals.
Q: Does this device include a PLL?
A: Yes, it features an integrated Phase-Locked Loop (PLL) for frequency synthesis and jitter cleaning.
Q: What are the input and output types?
A: It accepts LVCMOS or Crystal inputs and provides LVPECL outputs, making it versatile for various system interfaces.
Q: How many circuits does it have and what is the maximum frequency?
A: It has 1 circuit and generates a fixed 156.25MHz output clock.
Q: What is the operating temperature range and package?
A: It operates from -40°C to 85°C and comes in a 24-VFQFN Exposed Pad package.
Q: What is the supply voltage requirement?
A: The supply voltage is not specified in the provided data; please refer to the datasheet for detailed electrical specifications.
Base Product Number : CDC421A156
1 Circuit 156.25MHz 24-VFQFN Clock Generator Crystal Frequency Synthesizer LVCMOS LVPECL PLL Texas Instruments
Q: What type of device is the CDC421A156RGET?
A: It is a Clock Generator from Texas Instruments, designed to generate precise clock signals.
Q: Does this device include a PLL?
A: Yes, it features an integrated Phase-Locked Loop (PLL) for frequency synthesis and jitter cleaning.
Q: What are the input and output types?
A: It accepts LVCMOS or Crystal inputs and provides LVPECL outputs, making it versatile for various system interfaces.
Q: How many circuits does it have and what is the maximum frequency?
A: It has 1 circuit and generates a fixed 156.25MHz output clock.
Q: What is the operating temperature range and package?
A: It operates from -40°C to 85°C and comes in a 24-VFQFN Exposed Pad package.
Q: What is the supply voltage requirement?
A: The supply voltage is not specified in the provided data; please refer to the datasheet for detailed electrical specifications.