CDC857-2DGG The Texas Instruments CDC857-2DGG is a PLL clock driver designed for Double Data Rate Synchronous DRAM applications. It distributes one differential clock input to ten differential outputs.
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CDC857-2DGG

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Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments CDC857-2DGG is a PLL clock driver designed for Double Data Rate Synchronous DRAM applications. It distributes one differential clock input to ten differential outputs.
✓ Total Stock: 2,016 pcs

CDC857-2DGG Available from 1 distributor

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CDC857-2DGG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Differential
Divider
Frequency
Input
Mounting Type
Number of Circuits
Operating Temperature
Output
PLL
Ratio
Supplier Device Package
Type
Voltage

CDC857-2DGG Description

Short technical summary and product information.

The Texas Instruments CDC857-2DGG is a high-performance, low-skew, low-jitter phase-lock loop (PLL) clock driver. It operates with a supply voltage range of 2.3V to 2.7V and can achieve a maximum frequency of 167MHz.

 

This device distributes one differential clock input to ten differential outputs, with a ratio of 1:10. It supports LVTTL and SSTL-2 input types and SSTL-2 output types. The operating temperature range is from 0°C to 85°C.

 

The CDC857-2DGG is packaged in a 48-TSSOP (Thin Shrink Small-Outline Package) and is designed for surface mounting. It features on-chip loop filtering, eliminating the need for external RC networks, which minimizes component count and board space.

 

Key features include spread spectrum clocking tracking capability to reduce EMI and adjustable output duty cycles to 50%, independent of the input duty cycle. An output enable input allows all outputs to be enabled or disabled.

CDC857-2DGG Quick Information

Product Type: PLL Clock Driver
Canonical Name: Texas Instruments CDC857-2DGG PLL Clock Driver
Subcategory: Phase-Locked Loops (PLLs)

CDC857-2DGG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

CDC857-2DGG Features

  • Distributes one clock input to ten outputs.
  • Low-skew, low-jitter PLL clock driver.
  • Operates at 2.3V to 2.7V supply voltage.
  • 167MHz maximum operating frequency.
  • Surface mount 48-TSSOP package.

CDC857-2DGG Applications

  • Ideal for DDR SDRAM clocking.
  • Suitable for EMI reduction.
  • Used in high-speed digital systems.
  • Clock distribution applications.

CDC857-2DGG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the CDC857-2DGG?

The operating voltage for the CDC857-2DGG is between 2.3V and 2.7V.

What is the operating temperature range of this PLL Clock Driver?

The operating temperature range is 0°C to 85°C.

What package type is the CDC857-2DGG available in?

The CDC857-2DGG is available in a 48-TSSOP package, suitable for surface mounting.

Is the CDC857-2DGG RoHS compliant?

Yes, the CDC857-2DGG is RoHS3 Compliant.

What is the maximum frequency for the CDC857-2DGG?

The maximum frequency is 167MHz.

What are the input and output signal types supported by the CDC857-2DGG?

It supports LVTTL and SSTL-2 input signal types and SSTL-2 output signal types.

Does the CDC857-2DGG have a PLL with bypass functionality?

Yes, it has a PLL with a bypass option for test purposes.

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