TEXAS INSTRUMENTS CDC536 3.3-V PHASE-LOCK LOOP CLOCK DRIVER WITH 3-STATE OUTPUTS handbook

The CDC536 is a high-performance, low-skew, low-jitter clock driver. It uses a phase-lock loop (PLL) to precisely align, in both frequency and phase, the clock output signals to the clock input (CLKIN) signal. It is specifically designed for use with synchronous DRAMs and popular microprocessors operating at speeds from 50 MHz to 100 MHz or down to 25 MHz on outputs configured as half-frequency outputs. The CDC536 operates at 3.3-V VCC and is designed to drive a 50-Ω transmission line. The feedback input (FBIN) is used to synchronize the output clocks.


TEXAS INSTRUMENTS CDC536 3.3-V PHASE-LOCK LOOP CLOCK DRIVER WITH 3-STATE OUTPUTS handbook - cover page
Brand
Texas Instruments
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
12
File format
PDF
File size
153 KB
Published
01 August, 2012
Updated
29 September, 2023
MD5 checksum
72E415A66144529F069FE11E338E7EE0

About this manual

The CDC536 is a high-performance, low-skew, low-jitter clock driver that uses a phase-lock loop (PLL) to align clock output signals to the input clock signal in both frequency and phase. It operates at 3.3 V and is specifically designed for use with synchronous DRAMs and microprocessors operating at speeds from 50 MHz to 100 MHz, or down to 25 MHz on half-frequency outputs. The device distributes one clock input to six outputs and can configure three of these outputs to operate at one-half or double the input frequency based on the SEL input and feedback configuration. Unlike many other PLL products, the CDC536 does not require external RC networks as the loop filter is included on-chip.

What's inside

  • Description
  • Output Configurations
  • Terminal Functions
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • Electrical Characteristics

Specifications

Supply Voltage3 V to 3.6 V
High-Level Output Current-32 mA
Low-Level Output Current32 mA
Input Frequency Range (Config A)50 MHz to 100 MHz
Input Frequency Range (Config B)25 MHz to 50 MHz

Frequently asked questions

Does the CDC536 require external RC networks?

No, the CDC536 does not require external RC networks because the loop filter for the PLL is included on-chip.

What is the operating voltage of the CDC536?

The CDC536 operates at 3.3 V.

How many outputs does the CDC536 have?

The CDC536 distributes one clock input to six outputs.

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