SCHS371H November   2009  – October 2024 CDC3RL02

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Low Additive Noise
      2. 7.3.2 Regulated 1.8V Externally Available I/O Supply
      3. 7.3.3 Ultra-Small 8-bump YFP 0.4mm Pitch WCSP Package
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Clock Squarer
      2. 8.1.2 Output Stage
      3. 8.1.3 LDO
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The CDC3RL02 is a two-channel clock fan-out buffer and is designed for use in portable end-equipment, such as mobile phones, that require clock buffering with minimal additive phase noise and fan-out capabilities. The device buffers a single clock source, such as a temperature compensated crystal oscillator (TCXO) to multiple peripherals. The device has two clock request inputs (CLK_REQ1 and CLK_REQ2), each input can enable a single clock output.

The CDC3RL02 accepts square or sine waves at the master clock input (MCLK_IN), eliminating the need for an AC coupling capacitor. The smallest acceptable sine wave is a 0.3V signal (peak-to-peak). CDC3RL02 is designed to offer minimal channel-to-channel skew, additive output jitter, and additive phase noise. The adaptive clock output buffers offer controlled slew-rate over a wide capacitive loading range which minimizes EMI emissions, maintains signal integrity, and minimizes ringing caused by signal reflections on the clock distribution lines.

The CDC3RL02 has an integrated Low-Drop-Out (LDO) voltage regulator which accepts input voltages from 2.3V to 5.5V and outputs 1.8V, 50mA. This 1.8V supply is externally available to provide regulated power to peripheral devices such as a TCXO.

The CDC3RL02 is offered in a 0.4mm pitch die size ball grid array (DSBGA) package (0.8mm × 1.6mm), also known as wafer-level chip-scale (WCSP) package, and is optimized for very low standby current consumption.

Package Information
PART NUMBER (1)PACKAGEPACKAGE SIZE(2)
CDC3RL02YFP (DSBGA, 8)0.80mm × 1.60mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.