SNAS880 December   2024 LMK3C0105

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 I2C Interface Specification
  7. 6 Parameter Measurement Information
    1. 6.1 Output Format Configurations
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Device Block-Level Description
      2. 7.3.2 Device Configuration Control
      3. 7.3.3 OTP Mode
      4. 7.3.4 I2C Mode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Fail-Safe Inputs
      2. 7.4.2 Fractional Output Dividers
        1. 7.4.2.1 FOD Operation
        2. 7.4.2.2 Digital State Machine
        3. 7.4.2.3 Spread-Spectrum Clocking
        4. 7.4.2.4 Integer Boundary Spurs
      3. 7.4.3 Output Behavior
        1. 7.4.3.1 Output Format Selection
        2. 7.4.3.2 REF_CTRL Operation
      4. 7.4.4 Output Enable
        1. 7.4.4.1 Output Enable Control
        2. 7.4.4.2 Output Enable Polarity
        3. 7.4.4.3 Separate Output Enable
        4. 7.4.4.4 Output Disable Behavior
      5. 7.4.5 Device Default Settings
    5. 7.5 Programming
      1. 7.5.1 I2C Serial Interface
      2. 7.5.2 One-Time Programming Sequence
  9. 8 Device Registers
    1. 8.1 Register Maps
      1. 8.1.1  R0 Register (Address = 0x0) [reset = 0x0861/0x0863]
      2. 8.1.2  R1 Register (Address = 0x1) [reset = 0x5599]
      3. 8.1.3  R2 Register (Address = 0x2) [reset = 0xC28F]
      4. 8.1.4  R3 Register (Address = 0x3) [reset = 0x1804]
      5. 8.1.5  R4 Register (Address = 0x4) [reset = 0x0000]
      6. 8.1.6  R5 Register (Address = 0x5) [reset = 0x0000]
      7. 8.1.7  R6 Register (Address = 0x6) [reset = 0x0AA7]
      8. 8.1.8  R7 Register (Address = 0x7) [reset = 0x5D1F]
      9. 8.1.9  R8 Register (Address = 0x8) [reset = 0xC28F]
      10. 8.1.10 R9 Register (Address = 0x9) [reset = 0x3000/0x1000]
      11. 8.1.11 R10 Register (Address = 0xA) [reset = 0x0010]
      12. 8.1.12 R11 Register (Address = 0xB) [reset = 0x0000]
      13. 8.1.13 R12 Register (Address = 0xC) [reset = 0xE800]
      14. 8.1.14 R238 Register (Address = 0xEE) [reset = 0x0000]
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Application Block Diagram Examples
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detailed Design Procedure
      4. 9.2.4 Example: Changing Output Frequency
      5. 9.2.5 Crosstalk
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Power-Up Sequencing
      2. 9.3.2 Decoupling Power Supply Inputs
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  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
    1. 12.1 Package Option Addendum
    2. 12.2 Tape and Reel Information

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RER|16
Thermal pad, mechanical data (Package|Pins)

8.1.11 R10 Register (Address = 0xA) [reset = 0x0010]

R10 is shown in Table 8-16.

Return to the Summary Table.

Table 8-13 R10 Register Field Descriptions
BitFieldTypeResetDescription
15ReservedR/W0x0Reserved. Only write '0' to this bit.
14:11PROD_REVIDRN/AProduct revision identifier.
10CLK_READYRN/ACLK_READY status. The REF_CTRL pin mirrors this status signal when the pin functions as a "clock ready" signal.
9ReservedRN/AReserved, do not write to this field.
8RB_PIN_15RN/AReadback of the REF_CTRL pin.
7RB_PIN_4RN/AReadback of the OTP_SEL1/SDA pin.
6RB_PIN_3RN/AReadback of the OTP_SEL0/SCL pin.
5RB_PIN_2RN/AReadback of the I2C_ADDR pin.
4DEV_IDLE_STATE_SELR/W0x1

This bit controls the behavior of the device when both outputs are disabled. Placing the device into a low-power state is not recommended for PCIe applications, as the time to re-enable the clocks is extended. This field is stored in the EFUSE.

0h: When both outputs are disabled, the outputs are muted, and the device is placed into a low-power state.

1h: When both outputs are disabled, the outputs are muted. The device does not enter a low-power state.

3PIN_RESAMPLE_DISR/W0x0

This bit controls the resampling of the device pins when exiting the low power mode. Write this bit while in the low power mode. TI recommends keeping this bit as a '1' unless the functionality is explicitly desired.

0h: Pin resampling is enabled. When exiting the low power mode, the I2C_ADDR, OTP_SEL0/SCL, OTP_SEL1/SDA, and I2C_ADDR pins are resampled. If I2C_ADDR is high, the device enters OTP Mode.

1h: Pin resampling is disabled. When exiting the low power mode, the I2C_ADDR, OTP_SEL0/SCL, OTP_SEL1/SDA, and I2C_ADDR pins are not resampled. The device remains in I2C Mode.

2OTP_AUTOLOAD_DISR/W0x0

This bit controls the behavior of the device when exiting the low power mode. Write this bit while in the low power mode. TI recommends keeping this bit as a '1' unless the functionality is explicitly desired.

0h: OTP autoload is enabled. When exiting the low power mode, the contents of OTP Page 0 are written to the device registers.

1h: OTP autoload is disabled. When exiting the low power mode, the contents of OTP Page 0 are not written to the device registers.

1PDNR/W0x0

Writing a '1' to this bit puts the device into a low power state.

0ReservedR/W0x0Reserved. Only write '0' to this bit.