SLLSE81A March   2011  – March 2016 SN75LVCP600S

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Equalization
      2. 8.3.2 Auto Low-Power (ALP) Mode (see )
      3. 8.3.3 Out-Of-Band (OOB) Support
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

9.1 Application Information

The SN75LVCP600S is a single-channel SATA/SAS redriver and signal conditioner supporting data rates up to 6 Gbps. The inputs incorporate an OOB (out-of-band) detector, which automatically squelches the output while maintaining a stable common-mode voltage compliant to the SATA/SAS link. This device is designed for applications where an extended temperature range is required.

9.2 Typical Application

SN75LVCP600S typ_app2_llse81.gif Figure 13. Typical Application

9.2.1 Design Requirements

For this design example, use the values shown in Table 2.

Table 2. Design Parameters

PARAMETER VALUE
VCC 3.3 V
ICC 32 mA
Input voltage 275 mVpp to 1.6 Vpp
Output voltage 385 mVpp to 1.3 Vpp

9.2.2 Detailed Design Procedure

  • Determine the loss profile between Host and HDD.
  • Based upon loss profile and signal swing, determine the optimal equalization setting EQ pin.
  • Select appropriate de-emphasis with DE control pin.
  • Depending on loss profile, select squelch threshold using SQ_TH.
  • For low level, use 47-kΩ pulldown. For high level, tie pin to VCC.

9.2.3 Application Curves

SN75LVCP600S eye1_llse81.gif
MODE = 0
Figure 14. SATA 6-Gbps Signal After 16 inches (41 cm),
Input of LVCP600S
SN75LVCP600S eye3_llse81.gif
MODE = 0
Figure 16. SATA 6-Gbps Signal After 32 Inches (81 cm) at
Input of LVCP600S
SN75LVCP600S eye2_llse81.gif
MODE = 0
Figure 15. SATA 6-Gbps, DE = 0, EQ = 1, at
Output = 2 Inches (5.1 cm) After Equalizing
SN75LVCP600S eye4_llse81.gif
MODE = 0
Figure 17. SATA 6 Gbps, DE = 0, EQ = 1, at
Output = 2 Inches (5.1 cm) After Equalizing
SN75LVCP600S eye5_llse81.gif
MODE = 0
Figure 18. SATA 6-Gbps Signal After 40 Inches (1 m) at Input of LVCP600S
SN75LVCP600S eye7_llse81.gif
MODE = 1
Figure 20. SAS 3-Gbps Signal After 32 Inches (81 cm) at Input of LVCP600S
SN75LVCP600S eye9_llse81.gif
MODE = 1
Figure 22. SAS 6-Gbps Signal after 32 Inches (81 cm) at Input of LVCP600S
SN75LVCP600S eye11_llse81.gif
MODE = 1
Figure 24. SAS 3-Gbps Signal After 40 Inches (1 m) at
Input of LVCP600S
SN75LVCP600S eye13_llse81.gif
MODE = 1
Figure 26. SAS 6-Gbps Signal After 40 Inches (1 m) at
Input of LVCP600S
SN75LVCP600S eye6_llse81.gif
MODE = 0
Figure 19. SATA 6 Gbps, DE = 1, EQ = 1, at
Output = 2 Inches (5.1 cm) After Equalizing
SN75LVCP600S eye8_llse81.gif
MODE = 1
Figure 21. SAS 3 Gbps, DE = 0, EQ = 1, at
Output = 2 Inches (5.1 cm) After Equalizing
SN75LVCP600S eye10_llse81.gif
MODE = 1
Figure 23. SAS 6 Gbps, DE = 0, EQ = 1, at
Output = 2 Inches) After Equalizing
SN75LVCP600S eye12_llse81.gif
MODE = 1
Figure 25. SAS 3 Gbps, DE = 1, EQ = 1, at
Output = 2 Inches (5.1 cm) After Equalizing
SN75LVCP600S eye14_llse81.gif
MODE = 1
Figure 27. SAS 6 Gbps, DE = 1, EQ = 1, at
Output = 2 Inches (5.1 cm) after Equalizing

9.3 System Examples

SN75LVCP600S typ_dev_imp_llse81.gif
A. Place supply capacitors close to device pin
B. EQ selection is set at 7 db, device is set in SAS mode, DE and SQ_TH at default settings
C. Actual EQ settings depend on device placement relative to host and SATA/SAS device.
Figure 28. Typical Device Implementation