Allicdata Part #: | 296-21383-5-ND |
Manufacturer Part#: |
CDCD5704PW |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC CLOCK GEN FOR XDR MEM 28TSSOP |
More Detail: | N/A |
DataSheet: | CDCD5704PW Datasheet/PDF |
Quantity: | 1460 |
Ratio - Input:Output: | 1:4 |
Base Part Number: | CDCD5704 |
Supplier Device Package: | 28-TSSOP |
Package / Case: | 28-TSSOP (0.173", 4.40mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | 0°C ~ 70°C |
Voltage - Supply: | 2.375 V ~ 2.625 V |
Frequency - Max: | 800MHz |
Differential - Input:Output: | Yes/Yes |
Series: | -- |
Number of Circuits: | 1 |
Output: | Clock |
Input: | Clock |
Main Purpose: | Memory, RDRAM; Extreme Data Rate (XDR™) |
PLL: | Yes |
Part Status: | Active |
Packaging: | Tube |
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CDCD5704PW Application Field and Working Principle
CDCD5704PW is an advanced high performance Frequency/Voltage Converter (FVC) product from Texas Instruments that consists of a digitally programmable clock generator and PLL for frequency synthesis, and a voltage controlled oscillator (VCO) combined with a buffer to create the clock outputs. This device is designed for low jitter clocking applications requiring an output from 200 MHz to 1.1GHz. It offers full frequency/voltage control and programmability for all of its outputs.
Applications
CDCD5704PW is ideal for applications requiring frequency-dependent voltage precision and low jitter, such as Ethernet switches and routers, 0G, 2.5G, 5G, 10G, 20G and 40G, CPU, Processors, ASIC and other high speed datapath solutions. It is also ideal for wireless infrastructure applications, such as base stations and backhaul systems, as well as other networking and communication applications.
Features
The CDCD5704PW has four keys features that make it an ideal choice for precision clocking requirements and flexible frequency-dependent voltage input.
- It offers fractional-N frequency and voltage control for precision frequency output.
- The integrated jitter attenuator eliminates the need for off-chip jitter cleaning circuitry.
- The device integrates a PLL and VCO for low jitter and wideband frequency range.
- It has a programmable control bus interface for flexible and easy control and programming of the device.
Working Principle
The CDCD5704PW consists of a digitally programmable clock generator and PLL for frequency synthesis and a voltage controlled oscillator (VCO) combined with a buffer to create clock output. When voltage is applied to the VCO, a frequency is generated which is dependent on the voltage and a reference frequency, easily selectable by the user. The device is programmable, meaning the user can specify a wide range of analog parameters, such as the charge pump, loop bandwidth, etc., for different applications.
The PLL within the device allows for the generation of any frequency from 200MHz to 1.1GHz, by dividing and multiplying the reference frequency, which is selectable from available reference sources, by known output frequencies, set by the user. The PLL also helps to minimize jitter, along with the integrated jitter attenuator, to provide the best possible clocking solution with low phase noise and jitter.
Conclusion
The CDCD5704PW is an advanced high performance frequency/voltage converter (FVC) product from Texas Instruments that offers full frequency/voltage control and programmability for all of its outputs. Ideal for precision clocking applications requiring low jitter, fractional-N frequency and voltage control, and wideband frequency range, the CDCD5704PW is a powerful and cost effective choice for a variety of communication and networking applications.
The specific data is subject to PDF, and the above content is for reference
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