SCAS849I June   2007  – August 2024 CDCE913 , CDCEL913

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 EEPROM Specification
    7. 5.7 Timing Requirements: CLK_IN
    8. 5.8 Timing Requirements: SDA/SCL #GUID-DE171716-D3A0-4375-A25C-58C636304087/SCAS849414
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Control Terminal Configuration
      2. 7.3.2 Default Device Configuration
      3. 7.3.3 SDA/SCL Serial Interface
      4. 7.3.4 Data Protocol
    4. 7.4 Device Functional Modes
      1. 7.4.1 SDA/SCL Hardware Interface
    5. 7.5 Programming
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Spread-Spectrum Clock (SSC)
        2. 8.2.2.2 PLL Frequency Planning
        3. 8.2.2.3 Crystal Oscillator Start-up
        4. 8.2.2.4 Frequency Adjustment with Crystal Oscillator Pulling
        5. 8.2.2.5 Unused Inputs/Outputs
        6. 8.2.2.6 Switching Between XO and VCXO Mode
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Register Maps
    1. 9.1 SDA/SCL Configuration Registers
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

4 Pin Configuration and Functions



Figure 4-1 PW Package14-Pin TSSOPTop View
Table 4-1 Pin Functions
PIN Type1 DESCRIPTION
NAME NO.
GND 5, 10 G Ground
SCL/S2 12 I SCL: serial clock input LVCMOS (default configuration), internal pullup 500 kΩ or
S2: user-programmable control input; LVCMOS inputs; 500-kΩ internal pullup
SDA/S1 13 I/O or I SDA: bidirectional serial data input/output (default configuration), LVCMOS internal pullup; or
S1: user-programmable control input; LVCMOS inputs; 500-kΩ internal pullup
S0 2 I User-programmable control input S0; LVCMOS inputs; 500-kΩ internal pullup
VCtrl 4 I VCXO control voltage (leave open or pull up when not used)
VDD 3 P 1.8-V power supply for the device
VDDOUT 6, 7 P CDCE913: 3.3-V or 2.5-V supply for all outputs
CDCEL913: 1.8-V supply for all outputs
Xin/CLK 1 I Crystal oscillator input or LVCMOS clock Input (selectable through SDA/SCL bus)
Xout 14 O Crystal oscillator output (leave open or pull up when not used)
Y1 11 O LVCMOS outputs
Y2 9 O LVCMOS outputs
Y3 8 O LVCMOS outputs
  1. In = Input, O = Output, I/O = Input or Output G = Ground, P = Power