Texas Instruments CDC960 Clock Synthesizer/Driver Datasheet

The CDC960 is a clock synthesizer/driver and buffer that generates CPU, PCI, PCI/LDT, USB, FDC, and REF system clock signals to support PCs with an AMD-K8 Clawhammer-class system. All output frequencies are generated from a 14.318-MHz crystal input.


Texas Instruments CDC960 Clock Synthesizer/Driver Datasheet - cover page
Brand
Texas Instruments
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
38
File format
PDF
File size
547 KB
Published
01 August, 2012
Updated
28 September, 2023
MD5 checksum
03CBC6157FC6242365649767475D59B1

About this manual

The CDC960 is a clock synthesizer/driver and buffer that generates CPU, PCI, PCI/LDT, USB, FDC, and REF system clock signals to support PCs with an AMD-K8 Clawhammer-class system. All output frequencies are generated from a 14.318-MHz crystal input, or an external reference clock at the XIN input. The device utilizes two phase-locked loops (PLLs) to generate host frequencies and 48-MHz clock frequencies, with on-chip loop filters eliminating the need for external components.

What's inside

  • Description
  • Functional Block Diagram
  • Device Frequency Select Functions
  • Device Enable Functions
  • Spread Spectrum
  • Output Buffer Specifications

Specifications

Operating Supply Voltage3.3 V
Package Type48-Pin SSOP
PCI Output Frequency33 MHz
USB Output Frequency48 MHz
FDC Output Frequencies24 MHz or 48 MHz
REF Output Frequency14.318 MHz
SMBus Interface Speed100 kbps
Crystal Input Frequency14.318 MHz

Frequently asked questions

Does the CDC960 support spread spectrum clocking?

Yes, it includes Spread Spectrum Clocking (SSC) with 0.5% downspread for reduced EMI.

What is the operating supply voltage?

The device operates from a single 3.3-V supply.

What package does the CDC960 come in?

It is packaged in a 48-Pin SSOP package.

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