ZHCSIC9D April   2016  – June 2018 LMH1219

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化框图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Recommended SMBus Interface AC Timing Specifications
    7. 6.7 Serial Parallel Interface (SPI) AC Timing Specifications
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  4-Level Input Configuration Pins
      2. 7.3.2  Input Carrier Detect
      3. 7.3.3  -6 dB Splitter Mode Launch Amplitude for IN0
      4. 7.3.4  Continuous Time Linear Equalizer (CTLE)
        1. 7.3.4.1 Adaptive Cable Equalizer (IN0+)
        2. 7.3.4.2 Adaptive PCB Trace Equalizer (IN1±)
      5. 7.3.5  Input-Output Mux Selection
      6. 7.3.6  Clock and Data Recovery (CDR) Reclocker
      7. 7.3.7  Internal Eye Opening Monitor (EOM)
      8. 7.3.8  Output Function Control
      9. 7.3.9  Output Driver Amplitude and De-Emphasis Control
      10. 7.3.10 Status Indicators and Interrupts
        1. 7.3.10.1 LOCK_N (Lock Indicator)
        2. 7.3.10.2 CD_N (Carrier Detect)
        3. 7.3.10.3 INT_N (Interrupt)
      11. 7.3.11 Additional Programmability
        1. 7.3.11.1 Cable Length Indicator (CLI)
        2. 7.3.11.2 Digital MUTEREF
    4. 7.4 Device Functional Modes
      1. 7.4.1 System Management Bus (SMBus) Mode
        1. 7.4.1.1 SMBus Read and Write Transactions
          1. 7.4.1.1.1 SMBus Write Operation Format
          2. 7.4.1.1.2 SMBus Read Operation Format
      2. 7.4.2 Serial Peripheral Interface (SPI) Mode
        1. 7.4.2.1 SPI Read and Write Transactions
          1. 7.4.2.1.1 SPI Write Transaction Format
          2. 7.4.2.1.2 SPI Read Transaction Format
        2. 7.4.2.2 SPI Daisy Chain
    5. 7.5 LMH1219 Register Map
      1. 7.5.1 Share Register Page
      2. 7.5.2 CTLE/CDR Register Page
      3. 7.5.3 CableEQ/Drivers Register Page
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 General Guidance for SMPTE and 10 GbE Applications
      2. 8.1.2 Optimizing Time to Adapt and Lock
      3. 8.1.3 LMH1219 and LMH0324 Compatibility
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detail Design Procedure
      3. 8.2.3 Recommended VOD and DEM Register Settings
      4. 8.2.4 Application Performance Plots
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 PCB Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 术语表
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.5.3 CableEQ/Drivers Register Page

Address Register Name Bit Field Default Type Description
0x00 Reset CableEQ/Drivers Registers 7 adapt_cd 0x08 RW LOCK_N pin status
0 = LOCK_N indicates when Coarse Adaptation for IN0 is done
1 = LOCK_N indicates carrier detect (CD_N) for IN0
6 Reserved RW Reserved
5 reg_power_save_ov RW IN0 Power Save Override Control for Cable EQ
0 = Disable Power Save Mode override. Automatic Power Save when no input signal detected.
1 = Enable Power Save Mode override. Power Save mode control set by value in Reg 0x00[4:3].
Note: Unused input is always powered down automatically.
4:3 reg_power_save RW IN0 Auto Power Save Mode control for Cable EQ if Reg 0x00[5] = 1
00 = Enable Power Save Mode when no input signal is detected
01 = Disable auto Power Save Mode (disable power down)
10 = Reserved
11 = Force Power Save Mode
Note: Unused input is always powered down automatically.
2 rst_cableEQ/Drivers_
regs		 RW Reset registers (self-clearing)
0 = Normal operation
1 = Reset CableEQ/Drivers Registers. Register re-initialization procedure required after resetting the CableEQ/Drivers Registers. Refer to the LMH1219 Programming Guide for details.
1:0 Reserved RW Reserved
0x01 EQ Observation Status 7:1 Reserved 0x80 R Reserved
0 adaptation_status R 0 = Adaptation not completed
1 = Adaptation completed
0x02 Rate and Driver Observation Status 7 Reserved 0x07 R Reserved
6 IN0 Carrier Detect R Carrier Detect Status of IN0
0 = No signal present at IN0
1 = Signal present at IN0
5:3 freq_rate_det R Readback of rate detected
001 = 125M-270M
010 = 1.5G-3G
100 = 6G-12G
2 power_save_status R Observation Bit
0 = Power Save Mode is Inactive
1 = Power Save Mode is Active
1 mute_tx1 R Observation Bit
0 = OUT1 Driver is Active
1 = OUT1 Driver is in Mute
Note: When muted, driver output remains at common mode voltage.
0 mute_tx0 R Observation Bit
0 = OUT0 Driver is Active
1 = OUT0 Driver is in Mute
Note: When muted, driver output remains at common mode voltage.
0x03 MUTERef Control 7:6 Reserved 0x3F RW Reserved
5:0 MUTERef RW Digital MUTERef sets the threshold at which the output will be muted. See the "Digital MUTEREF" subsection of the LMH1219 datasheet for more information.
0x04 Reserved 7:0 Reserved 0x00 RW Reserved
0x05 Reserved 7:0 Reserved 0x00 RW Reserved
0x06 Reserved 7:0 Reserved 0xA0 RW Reserved
0x07 Reserved 7:0 Reserved 0x24 RW Reserved
0x08 Reserved 7:0 Reserved 0x27 RW Reserved
0x09 Reserved 7:0 Reserved 0x01 RW Reserved
0x0A Reserved 7:0 Reserved 0x05 RW Reserved
0x0B Reserved 7:0 Reserved 0x37 RW Reserved
0x0C Reserved 7:0 Reserved 0x01 RW Reserved
0x0D Reserved 7:0 Reserved 0x25 RW Reserved
0x0E Reserved 7:0 Reserved 0x37 RW Reserved
0x0F Reserved 7:0 Reserved 0x02 RW Reserved
0x10 Reserved 7:0 Reserved 0x0A RW Reserved
0x11 Reserved 7:0 Reserved 0x02 RW Reserved
0x12 Reserved 7:0 Reserved 0x08 RW Reserved
0x13 Reserved 7:0 Reserved 0x04 RW Reserved
0x14 Reserved 7:0 Reserved 0x3C RW Reserved
0x15 Reserved 7:0 Reserved 0x00 RW Reserved
0x16 Reserved 7:0 Reserved 0x00 RW Reserved
0x17 Reserved 7:0 Reserved 0x08 RW Reserved
0x18 Reserved 7:0 Reserved 0x01 RW Reserved
0x19 Reserved 7:0 Reserved 0x08 RW Reserved
0x1A Reserved 7:0 Reserved 0x01 RW Reserved
0x1B Reserved 7:0 Reserved 0xA7 RW Reserved
0x1C Reserved 7:0 Reserved 0x00 RW Reserved
0x1D Reserved 7:0 Reserved 0x00 RW Reserved
0x1E Reserved 7:0 Reserved 0x00 RW Reserved
0x1F Reserved 7:0 Reserved 0x00 RW Reserved
0x20 Reserved 7:0 Reserved 0x00 RW Reserved
0x21 Reserved 7:0 Reserved 0xC0 RW Reserved
0x22 Reserved 7:0 Reserved 0x00 RW Reserved
0x23 Reserved 7:0 Reserved 0x00 RW Reserved
0x24 Reserved 7:0 Reserved 0x00 RW Reserved
0x25 Cable Length Indicator 7:6 Reserved 0x00 R Reserved
5:0 CLI R Readback of Cable Length Indicator (CLI) after adaptation.
See the "Cable Length Indicator (CLI)" subsection of the LMH1219 datasheet for more information.
0x26 Reserved 7:0 Reserved 0x05 R Reserved
0x27 EQ Bypass Override 7:4 Reserved 0x00 RW Reserved
3 eq_bypass_ov RW Override eq_bypass value to analog core
0 = Disable EQ Bypass override
1 = Enable EQ Bypass override. Value of EQ Bypass Control determined by Reg 0x27[2].
2 eq_bypass_val RW Override value of eq_bypass
0 = Do not Bypass Cable EQ. Use Adaptive EQ
1 = Bypass Cable EQ
1:0 Reserved RW Reserved
0x28 Reserved 7:0 Reserved 0x00 RW Reserved
0x29 Reserved 7:0 Reserved 0x20 R Reserved
0x2A Reserved 7:0 Reserved 0x40 RW Reserved
0x2B Reserved 7:0 Reserved 0x89 RW Reserved
0x2C Reserved 7:0 Reserved 0x0B RW Reserved
0x2D Reserved 7:0 Reserved 0x20 RW Reserved
0x2E Reserved 7:0 Reserved 0x00 R Reserved
0x2F Reserved 7:0 Reserved 0x00 RW Reserved
0x30 OUT0 Output Control 7 tx0_mute_ov 0x0A RW OUT0 Mute Override Control
0 = Disable OUT0 Mute Override Control
1 = Enable OUT0 Mute Override Control by value in Reg 0x30[6].
6 tx0_mute_val RW 0 = Normal Operation
1 = Mute OUT0 if Reg 0x30[7] = 1
5 tx0_vod_ov RW OUT0 VOD Override Control
0 = VOD settings for OUT0 determined by VOD_DE pin
1 = Override VOD pin settings for OUT0. VOD settings for OUT0 are controlled by Reg 0x30[2:0]
4:3 Reserved RW Reserved
2:0 tx0_vod RW VOD settings for OUT0 if Reg 0x30[5] = 1.
See the "Output Amplitude vs. VOD Register Settings" graph in the Typical Characteristics subsection of the LMH1219 datasheet for more information.
0x31 OUT0
De-Emphasis Control		 7 Reserved 0x01 RW Reserved
6 tx0_dem_ov RW OUT0 De-Emphasis Override Control
0 = De-emphasis for OUT0 determined by VOD_DE pin
1 = Override De-emphasis settings for OUT0. De-emphasis settings for OUT0 are controlled by Reg 0x31[2:0]
5 tx0_PD_ov RW OUT0 Power Down Override Control
0 = Disable OUT0 Power Down Override Control
1 = Enable OUT0 Power Down Override Control by value in Reg 0x31[4]
4 tx0_PD RW 0 = Normal Operation
1 = Power Down OUT0 if Reg 0x31[5] = 1
3 Reserved RW Reserved
2:0 tx0_dem RW De-emphasis settings for OUT0 if Reg 0x31[6] = 1.
See the "Output De-emphasis vs. VOD Register Settings" graph in the Typical Characteristics subsection of the LMH1219 datasheet for more information.
0x32 OUT1 Output Control 7 tx1_mute_ov 0x0A RW OUT1 Mute Override Control
0 = Disable OUT1 Mute Override Control
1 = Enable OUT1 Mute Override Control by value in Reg 0x32[6].
6 tx1_mute_val RW 0 = Normal Operation
1 = Mute OUT1 if Reg 0x32[7] = 1
5 tx1_vod_ov RW OUT1 VOD Override Control
0 = VOD settings for OUT1 determined by VOD_DE pin
1 = Override VOD pin settings for OUT1. VOD settings for OUT1 are controlled by Reg 0x32[2:0]
4:3 Reserved RW Reserved
2:0 tx1_vod RW VOD settings for OUT0 if Reg 0x32[5] = 1.
See the "Output Amplitude vs. VOD Register Settings" graph in the Typical Characteristics subsection of the LMH1219 datasheet for more information.
0x33 OUT1
De-Emphasis Control		 7 Reserved 0x11 RW Reserved
6 tx1_dem_ov RW OUT1 De-Emphasis Override Control
0 = De-emphasis for OUT1 determined by VOD_DE pin
1 = Override De-emphasis settings for OUT1. De-emphasis settings for OUT1 are controlled by Reg 0x33[2:0]
5 tx1_PD_ov RW OUT1 Power Down Override Control
0 = Disable OUT1 Power Down Override Control
1 = Enable OUT1 Power Down Override Control by value in Reg 0x33[4].
4 tx1_PD RW 0 = Normal Operation
1 = Power Down OUT1 if Reg 0x33[5] = 1
3 Reserved RW Reserved
2:0 tx1_dem RW De-emphasis settings for OUT1 if Reg 0x33[6] = 1.
See the "Output De-emphasis vs. VOD Register Settings" graph in the Typical Characteristics subsection of the LMH1219 datasheet for more information.
0x34 Splitter_Reg 7 hi_gain_mode 0x17 RW -6 dB Launch Amplitude Adaptation Mode
0 = Enable EQ adaptation with nominal 800 mV launch amplitude
1 = Enable EQ adaptation with 400 mV launch amplitude
6:0 Reserved Reserved
0x35 Reserved 7:0 Reserved 0x61 RW Reserved
0x36 Reserved 7:0 Reserved 0x02 RW Reserved
0x37 Reserved 7:0 Reserved 0x00 RW Reserved
0x38 Reserved 7:0 Reserved 0x00 RW Reserved
0x39 Reserved 7:0 Reserved 0x00 RW Reserved
0x3A Reserved 7:0 Reserved 0x00 RW Reserved
0x3B Reserved 7:0 Reserved 0x00 RW Reserved
0x3C Reserved 7:0 Reserved 0x00 RW Reserved
0x3D Reserved 7:0 Reserved 0x7F RW Reserved
0x3E Reserved 7:0 Reserved 0x00 RW Reserved
0x3F Reserved 7:0 Reserved 0x00 RW Reserved
0x40 Reserved 7:0 Reserved 0x00 R Reserved
0x41 Reserved 7:0 Reserved 0x00 R Reserved
0x42 Reserved 7:0 Reserved 0x00 R Reserved
0x43 Reserved 7:0 Reserved 0x00 R Reserved
0x44 Reserved 7:0 Reserved 0x00 R Reserved
0x45 Reserved 7:0 Reserved 0x00 R Reserved
0x46 Reserved 7:0 Reserved 0x00 R Reserved
0x47 Reserved 7:0 Reserved 0x00 R Reserved
0x48 Reserved 7:0 Reserved 0x00 R Reserved
0x49 Reserved 7:0 Reserved 0x01 R Reserved
0x4A Reserved 7:0 Reserved 0x00 R Reserved
0x4B Reserved 7:0 Reserved 0x00 R Reserved
0x4C Reserved 7:0 Reserved 0x00 R Reserved
0x4D Reserved 7:0 Reserved 0x00 RW Reserved
0x4E Reserved 7:0 Reserved 0x00 RW Reserved
0x4F Reserved 7:0 Reserved 0x00 RW Reserved
0x50 Reserved 7:0 Reserved 0x00 RW Reserved
0x51 Reserved 7:0 Reserved 0x00 RW Reserved
0x52 Reserved 7:0 Reserved 0x00 RW Reserved
0x53 Reserved 7:0 Reserved 0x00 RW Reserved
0x54 Reserved 7:0 Reserved 0x0F R Reserved