Sample & Buy Product Folder Support & Community Tools & Software Technical Documents DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 DS100MB203 10.3125 Gbps Dual Lane 2:1/1:2 Mux/Buffer With Equalization and De-Emphasis 1 Features • 1 • • • • • 10.3125 Gbps Dual Lane 2:1 Mux, 1:2 Switch or Fan-Out Low 390 mW Total Power (Typical) Advanced Signal Conditioning Features: – Receive Equalization Up to 36 dB at 5 GHz – Transmit De-Emphasis Up to –12 dB – Transmit Output Voltage Control: 600 mV to 1300 mV Programmable Through Pin Selection, EEPROM or SMBus Interface Selectable 2.5-V or 3.3-V Supply Voltage –40°C to 85°C Operating Temperature Range 2 Applications • • • • The continuous time linear equalizer (CTLE) of the receiver provides necessary boost to compensate up to 40” FR-4 or 10m cable (AWG-24) at 10.3125 Gbps - This on-chip feature eliminates the need for external signal conditioners. The transmitter features a programmable amplitude voltage levels to be selectable from 600 mVp-p to 1300 mVp-p and DeEmphasis of up to 12 dB. The DS100MB203 can be configured to support PCIe, SAS/SATA, 10G-KR or other signaling protocols. When operating in 10G-KR and PCIe Gen3 mode, the DS100MB203 transparently allows the host controller and the end point to optimize the full link and negotiate transmit equalizer coefficients. This seamless management of the link training protocol ensures system level interoperability with minimum latency. The programmable settings can be applied through pin settings, SMBus (I2C) protocol or loaded directly from an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver. 10GE, 10G-KR PCIe Gen-1/2/3 SAS2/SATA3 (Up to 6 Gbps) XAUI, RXAUI 3 Description The DS100MB203 device is a dual port 2:1 multiplexer and 1:2 switch or fan-out buffer with signal conditioning suitable for 10GE, 10G-KR (802.3ap), Fibre Channel, PCIe, Infiniband, SATA3/SAS2 and other high-speed bus applications with data rates up to 10.3125 Gbps. Device Information(1) PART NUMBER DS100MB203 PACKAGE WQFN (54) 10.00 mm × 5.50 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Simplified Functional Block Diagram MB203 MB203 SEL0 DRIVE 0 S_INA0 S_INA+ S_INA- D_OUT+ D_OUT- BODY SIZE (NOM) EXPANDER TXA_0 DRIVE 1 D_OUT0 RX S_INB0 S_INB+ S_INBS_OUTA+ S_OUTA- D_IN+ D_IN- TXB_0 TX S_INA1 TXA_1 D_OUT1 S_OUTB+ S_OUTB- AD0 Address straps (pull-up to VIN or pull-down to GND)(1) AD1 S_INA1 TXB_1 GND 1 OF 2 AD2 AD3 SATA/SAS Mode(4) MODE RX S_OUTA0 VIN SMBus Slave Mode (1) SMBus Slave Mode(1) SMBus Slave Mode(1) 3.3V(3) SMBus Slave Mode(1) SEL0 READ_EN / SEL1 ALL_DONE 1 F VDD_SEL 0.1 F (x5) VDD (2.5 V) S_OUTB0 RXB_0 ENSMB SDA(2) SCL(2) VIN (3.3 V) 10 F RXA_0 D_IN0 TX S_OUTA1 To SMBus/I2C Host Controller INPUT_EN RESET D_IN1 RXA_1 S_OUTB1 SEL1 RXB_1 GND (DAP) (1) Schematic shows connection for SMBus Slave Mode (ENSMB = 1 k: to VIN) For SMBus Master Mode or Pin Mode configuration, the connections are different. (2) SMBus signals must be pulled up elsewhere in the system. (3) Schematic requires different connections for 2.5 V mode. (4) Schematic requires pullup resistor for 10G-KR Mode. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 7 6.1 6.2 6.3 6.4 6.5 6.6 Absolute Maximum Ratings ...................................... 7 ESD Ratings.............................................................. 7 Recommended Operating Conditions....................... 7 Thermal Information .................................................. 7 Electrical Characteristics........................................... 8 Electrical Characteristics – Serial Management Bus Interface .................................................................. 11 6.7 Timing Requirements – Serial Bus Interface .......... 11 6.8 Typical Characteristics ............................................ 13 7 Detailed Description ............................................ 14 7.1 Overview ................................................................. 14 7.2 Functional Block Diagram ....................................... 14 7.3 Feature Description................................................. 15 7.4 Device Functional Modes........................................ 15 7.5 Programming .......................................................... 19 7.6 Register Maps ......................................................... 20 8 Application and Implementation ........................ 40 8.1 Application Information............................................ 40 8.2 Typical Application .................................................. 41 9 Power Supply Recommendations...................... 42 9.1 Power Supply Bypassing ........................................ 42 10 Layout................................................................... 44 10.1 Layout Guidelines ................................................. 44 10.2 Layout Example .................................................... 45 11 Device and Documentation Support ................. 46 11.1 11.2 11.3 11.4 11.5 Documentation Support ........................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 46 46 46 46 46 12 Mechanical, Packaging, and Orderable Information ........................................................... 46 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision C (November 2015) to Revision D • Changed Signal detect pattern at 8 Gbps .............................................................................................................................. 8 Changes from Revision B (April 2013) to Revision C • 2 Page Changed data sheet flow and layout to conform with new TI standards. Added the following sections: Application and Implementation; Power Supply Recommendations; Layout; Device and Documentation Support; Mechanical, Packaging, and Ordering Information .................................................................................................................................... 1 Changes from Revision A (April 2013) to Revision B • Page Page Changed layout of National Data Sheet to TI format ............................................................................................................. 1 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 5 Pin Configuration and Functions RESET VDD DEM_S1/SCL DEM_S0/SDA ENSMB EQ_S1/AD2 EQ_S0/AD3 51 50 49 48 47 46 DEM_D0/AD1 53 52 DEM_D1/AD0 54 NJY Package 54-Pin WQFN Top View (looking down through package) SMBUS AND CONTROL NC 1 45 S_INA0+ NC 2 44 S_INA0- D_OUT0+ 3 43 S_INB0+ D_OUT0- 4 42 S_INB0- NC 5 41 VDD NC 6 40 S_INA1+ D_OUT1+ 7 39 S_INA1- D_OUT1- 8 38 S_INB1+ 37 S_INB1- TOP VIEW DAP = GND VDD 9 D_IN0+ 10 36 VDD D_IN0- 11 35 S_OUTA0+ NC 12 34 S_OUTA0- NC 13 33 S_OUTB0+ VDD 14 32 S_OUTB0- D_IN1+ 15 31 S_OUTA1+ D_IN1- 16 30 S_OUTA1- NC 17 29 S_OUTB1+ NC 18 28 S_OUTB1- 19 20 21 22 23 24 25 26 27 EQ_D1 EQ_D0 MODE INPUT_EN SEL0 VIN VDD_SEL SEL1 / READ_EN ALL_DONE LDO REG 3.3V to 2.5V Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 3 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Pin Functions: Common Connections (1) PIN NAME NO. TYPE DESCRIPTION DIFFERENTIAL HIGH-SPEED INPUTS AND OUTPUTS D_IN0+, D_IN0-, D_IN1+, D_IN1D_OUT0+, D_ OUT0-, D_OUT1+, D_OUT1S_INA0+, S_INA0-, S_INA1+, S_INA1S_INB0+, S_INB0-, S_INB1+, S_INB1S_OUTA0+, S_OUTA0-, S_OUTA1+, S_OUTA1S_OUTB0+, S_OUTB0-, S_OUTB1+, S_OUTB1- 10, 11, 15, 16 I 3, 4, 7, 8 O 45, 44, 40, 39 I 43, 42, 38, 37 I 35, 34, 31, 30 O 33, 32, 29, 28 O Inverting and noninverting CML differential inputs to the equalizer. A gated on-chip 50Ω termination resistor connects D_INn+ to VDD and D_INn- to VDD when enabled. AC coupling required on high-speed I/O. Inverting and noninverting low power differential signaling 50-Ω outputs with deemphasis. Fully compatible with AC-coupled CML inputs. AC coupling required on high-speed I/O. Inverting and noninverting CML differential inputs to the equalizer. An on-chip 50-Ω termination resistor connects S_INAn+ to VDD and S_INAn- to VDD. AC coupling required on high-speed I/O. Inverting and noninverting CML differential inputs to the equalizer. An on-chip 50-Ω termination resistor connects S_INBn+ to VDD and S_INBn- to VDD. AC coupling required on high-speed I/O. Inverting and noninverting low power differential signaling 50-Ω outputs with deemphasis. Fully compatible with AC-coupled CML inputs. Inverting and noninverting low power differential signaling 50-Ω outputs with deemphasis. Fully compatible with AC-coupled CML inputs. AC coupling required on high-speed I/O. CONTROL PINS - SHARED (LVCMOS) ENSMB 48 I, FLOAT, LVCMOS System Management Bus (SMBus) enable pin Tie 1 kΩ to VDD = register access SMBus slave mode FLOAT = read external EEPROM (master SMBUS mode) Tie 1 kΩ to GND = Pin Mode CONTROL PINS—BOTH PIN AND SMBus MODES (LVCMOS) 0: Normal operation (device is enabled). 1: low power mode. RESET 52 I, LVCMOS VDD_SEL 25 I, FLOAT GND DAP Power Ground pad (DAP - die attach pad). VDD 9, 14,36, 41, 51 Power Power supply pins CML/analog 2.5-V mode, connect to 2.5 V ±5% 3.3-V mode, connect 0.1-uF cap to each VDD pin VIN 24 Power In 3.3-V mode, feed 3.3 V ±10% to VIN In 2.5-V mode, leave floating. Controls the internal regulator FLOAT: 2.5-V mode Tied to GND: 3.3-V mode POWER (1) 4 LVCMOS inputs without the “Float” conditions must be driven to a logic low or high at all times or operation is not ensured. Input edge rate for LVCMOS/FLOAT inputs must be faster than 50 ns from 10–90%. For 3.3-V mode operation, VIN pin = 3.3 V and the "VDD" for the 4-level input is 3.3 V. For 2.5-V mode operation, VDD pin = 2.5 V and the "VDD" for the 4-level input is 2.5 V. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Pin Functions: SMBus/EEPROM Control PIN NAME NO. TYPE DESCRIPTION ENSMB = 1 (SMBUS SLAVE MODE), FLOAT (SMBUS MASTER MODE) AD0-AD3 54, 53, 47, 46 I, LVCMOS ENSMB master or slave mode SMBus slave address Inputs. In SMBus mode, these pins are the user set SMBus slave address inputs. READ_EN 26 I, LVCMOS ENSMB = FLOAT (SMBUS master mode) When using an external EEPROM, a transition from high to low starts the load from the external EEPROM SCL 50 I, LVCMOS, O, Opendrain ENSMB master or slave mode SMBUS clock input pin is enabled (slave mode) SMBUS clock output when loading configuration from EEPROM (master mode) SDA 49 I, LVCMOS, O, Opendrain ENSMB Master or Slave mode The SMBus bidirectional SDA pin is enabled. Data input or open drain (pulldown only) output. CONTROL PINS—BOTH PIN AND SMBus MODES (LVCMOS) INPUT_EN 22 I, 4-LEVEL, LVCMOS 0: Normal operation, FANOUT is disabled, use SEL0/1 to select the A or B input/output (see SEL0/1 pin), input always enabled with 50 Ω. 20kΩ to GND: Reserved FLOAT: AUTO - Use RX Detect, SEL0/1 to determine which input or output to enable, FANOUT is disable 1: Normal operation, FANOUT is enabled (both S_OUT0/1 are ON). Input always enabled with 50 Ω. MODE 21 I, 4-LEVEL, LVCMOS 0: SATA/SAS, PCIe GEN 1/2 and 10GE FLOAT: AUTO (PCIe GEN 1/2 or GEN 3) 1: 10-KR 23 I, 4-LEVEL, LVCMOS Select pin for Lane 0. 0: selects input S_INB0±, output S_OUTB0±. 20 kΩ to GND: selects input S_INB0±, output S_OUTA0±. FLOAT: selects input S_INA0±, output S_OUTB0±. 1: selects input S_INA0±, output S_OUTA0±. 26 I, 4-LEVEL, LVCMOS Select pin for Lane 1. 0: selects input S_INB1±, output S_OUTB1±. 20 kΩ to GND: selects input S_INB1±, output S_OUTA1±. FLOAT: selects input S_INA1±, output S_OUTB1±. 1: selects input S_INA1±, output S_OUTA1±. 27 0, LVCMOS Valid Register Load Status Output 0: External EEPROM load passed 1: External EEPROM load failed SEL0 SEL1 OUTPUT (LVCMOS) ALL_DONE Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 5 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Pin Functions: Pin Control PIN NAME NO. TYPE DESCRIPTION ENSMB = 0 (PIN MODE) DEM_S0, DEM_S1 DEM_D0, DEM_D1 49, 50, 53, 54 I, 4-LEVEL, LVCMOS DEM_D[1:0] and DEM_S[1:0] control the level of VOD and de-emphasis on the high-speed output. The outputs are organized into two sides. The D side is controlled with the DEM_D[1:0] pins and the S side is controlled with the DEM_S[1:0] pins. See Table 3. EQ_D0, EQ_D1 EQ_S0, EQ_S1 20, 19, 46, 47 I, 4-LEVEL, LVCMOS EQ_D[1:0] and EQ_S[1:0] control the level of equalization on the high-speed input pins. The inputs are organized into two sides. The D side is controlled with the EQ_D[1:0] pins and the S side is controlled with the EQ_S[1:0] pins. See Table 2. CONTROL PINS—BOTH PIN AND SMBus MODES (LVCMOS) INPUT_EN 22 I, 4-LEVEL, LVCMOS 0: Normal operation, FANOUT is disabled, use SEL0/1 to select the A or B input/output (see SEL0/1 pin), input always enabled with 50 Ω. 20kΩ to GND: Reserved FLOAT: AUTO - Use RX Detect, SEL0/1 to determine which input or output to enable, FANOUT is disable 1: Normal operation, FANOUT is enabled (both S_OUT0/1 are ON). Input always enabled with 50 Ω. MODE 21 I, 4-LEVEL, LVCMOS 0: SATA/SAS, PCIe GEN 1/2 and 10GE FLOAT: AUTO (PCIe GEN 1/2 or GEN 3) 1: 10-KR 23 I, 4-LEVEL, LVCMOS Select pin for lane 0. 0: selects input S_INB0±, output S_OUTB0±. 20kΩ to GND: selects input S_INB0±, output S_OUTA0±. FLOAT: selects input S_INA0±, output S_OUTB0±. 1: selects input S_INA0±, output S_OUTA0±. 26 I, 4-LEVEL, LVCMOS Select pin for Lane 1. 0: selects input S_INB1±, output S_OUTB1±. 20kΩ to GND: selects input S_INB1±, output S_OUTA1±. FLOAT: selects input S_INA1±, output S_OUTB1±. 1: selects input S_INA1±, output S_OUTA1±. SEL0 SEL1 6 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 6 Specifications 6.1 Absolute Maximum Ratings (1) (2) (3) See . MIN MAX UNIT Supply voltage (VDD – 2.5-V mode) –0.5 2.75 V Supply voltage (VIN – 3.3-V mode) –0.5 4 V LVCMOS input / output voltage –0.5 4 V CML input voltage –0.5 (VDD + 0.5) V CML input current –30 Junction temperature Soldering (4 sec.) (3) Lead temperature Storage temperature, Tstg (1) (2) (3) –40 30 mA 125 °C 260 °C 150 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. Soldering Information: SNOA549 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±3000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±1000 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions 2.5-V mode Supply voltage 3.3-V mode Ambient temperature MIN NOM MAX UNIT 2.375 2.5 2.625 V 3 3.3 3.6 V –40 25 85 °C 3.6 V 100 mVp-p SMBus (SDA, SCL) Supply noise up to 50 MHz (1) (1) Allowed supply noise (mVp-p sine wave) under typical conditions. 6.4 Thermal Information DS100MB203 THERMAL METRIC (1) NYJ (WQFN) UNIT 54 PINS RθJA Junction-to-ambient thermal resistance, No Airflow, 4 layer JEDEC 26.6 °C/W RθJC(top) Junction-to-case (top) thermal resistance 10.8 °C/W RθJB Junction-to-board thermal resistance 4.4 °C/W ψJT Junction-to-top characterization parameter 0.2 °C/W ψJB Junction-to-board characterization parameter 4.3 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 1.5 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 7 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 6.5 Electrical Characteristics (1) (2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD = 2.5-V supply 390 499 mW VIN = 3.3-V supply 515 684 mW POWER PD Power dissipation EQ Enabled, VOD = 1 Vp-p, RESET = 0 LVCMOS / LVTTL DC SPECIFICATIONS Vih High-level input voltage 2 VDD V Vil Low-level input voltage 0 0.8 V Voh High-level output voltage (ALL_DONE pin) Ioh= −4mA Vol Low-level output voltage (ALL_DONE pin) Iol= 4mA Input high current (RESET pin) VIN = 3.6 V, LVCMOS = 3.6 V Input high current with internal resistors (4–level input pin) VIN = 3.6 V, LVCMOS = 3.6 V Input low current (RESET pin) Input low current with internal resistors (4–level input pin) Iih Iil 2 V 0.4 V –15 15 µA 20 150 µA VIN = 3.6 V, LVCMOS = 0 V –15 15 µA VIN = 3.6 V, LVCMOS = 0 V –160 –40 µA CML RECEIVER INPUTS (IN_n+, IN_n–) RX differential return loss RLrx-diff 0.05 - 1.25 GHz –16 dB 1.25 - 2.5 GHz –16 dB 2.5 - 4.0 GHz –14 dB 0.05 - 2.5 GHz –12 dB 2.5 - 4.0 GHz –8 dB RLrx-cm RX common-mode return loss Zrx-dc RX DC commonmode impedance Tested at VDD = 2.5 V 40 50 60 Ω Zrx-diff-dc RX DC differntial mode impedance Tested at VDD = 2.5 V 80 100 120 Ω Vrx-signal-detdiff-pp Signal detect assert level for active data signal 0101 pattern at 8 Gbps 180 mVp-p 0101 pattern at 8 Gbps 110 mVp-p Signal detect deVrx-idle-det-diffassert level for pp electrical idle HIGH-SPEED OUTPUTS Vtx-diff-pp Output voltage differential swing Differential measurement with OUT_n+ and OUT_n-, terminated by 50 Ω to GND, AC-Coupled, VID = 1 Vp-p, DEM_x[1:0] = R, F (3) Vtx-de-ratio_3.5 TX de-emphasis ratio VOD = 1 Vp-p, DEM_x[1:0] = R, F (1) (2) (3) 8 0.8 1 –3.5 1.2 Vp-p dB Typical values represent most likely parametric norms at VDD = 2.5V, TA = 25°C., and at the Recommended Operation Conditions at the time of product characterization and are not ensured. The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured. In GEN3 mode, the output VOD level is not fixed. It will be adjusted automatically based on the VID input amplitude level. The output VOD level set by DEM_x[1:0] in GEN3 mode is dependent on the VID level and the frequency content. The DS100MB203 repeater in GEN3 mode is designed to be transparent, so the TX-FIR (de-emphasis) is passed to the RX to support the PCIe GEN3 handshake negotiation link training. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Electrical Characteristics(1)(2) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vtx-de-ratio_6 TX de-emphasis ratio VOD = 1 Vp-p, DEM_x[1:0] = F, 0 tTX-DJ Deterministic jitter VID = 800 mV, PRBS15 pattern, 8.0 0.05 Gbps, VOD = 1 V, UIpp EQ = 0x00, DE = 0 dB (no input or output trace loss) 0.05 UIpp tTX-RJ Random jitter VID = 800 mV, 0101 pattern, 8.0 Gbps, 0.3 VOD = 1 V, ps RMS EQ = 0x00, DE = 0 dB, (no input or output trace loss) 0.3 ps RMS TTX-RISE-FALL TX rise/fall time 20% to 80% of differential output voltage TRF-MISMATCH TX rise/fall mismatch 20% to 80% of differential output voltage 0.01 0.05 - 1.25 GHz –16 dB RLTX-DIFF TX differential return loss 1.25 - 2.5 GHz –12 dB 2.5 - 4 GHz –11 dB 0.05 - 2.5 GHz –12 dB –8 dB 100 Ω –6 35 dB 45 ps 0.1 UI RLTX-CM TX common-mode return loss ZTX-DIFF-DC DC differential TX impedance VTX-CM-AC-PP TX AC commonmode voltage VOD = 1 Vp-p, DEM_x[1:0] = R, F ITX-SHORT TX short circuit current limit Total current the transmitter can supply when shorted to VDD or GND VTX-CM-DC- Absolute delta of DC common-mode voltage during L0 and electrical idle 100 mV Absolute delta of DC common-mode voltage between TX+ and TX- 25 mV ACTIVE-IDLE-DELTA VTX-CM-DC-LINEDELTA 2.5 - 4 GHz 100 20 mVpp mA TTX-IDLE-DATA Max time to transition to differential DATA signal after IDLE VID = 1 Vp-p, 8 Gbps 3.5 ns TTX-DATA-IDLE Max time to transition to IDLE after differential DATA signal VID = 1 Vp-p, 8 Gbps 6.2 ns TPLHD/PHLD High-to-low and lowto-high differential propagation delay EQ = 00 (4) 200 ps TLSK Lane-to-lane skew T = 25°C, VDD = 2.5 V 25 ps TPPSK Part-to-part propagation delay skew T = 25°C, VDD = 2.5 V 40 ps TMUX-SWITCH Mux / switch time 100 ns DJE1 35-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 10.3125 Gbps PRBS15, EQ = 1F'h, DEM = 0 dB 0.3 UI DJE2 35-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 8 Gbps PRBS15, EQ = 1F'h, DEM = 0 dB 0.14 UI EQUALIZATION (4) Propagation Delay measurements will change slightly based on the level of EQ selected. EQ = 00 will result in the shortest propagation delays. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 9 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Electrical Characteristics(1)(2) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DJE3 35-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 5 Gbps PRBS15,EQ = 1F'h, DEM = 0 dB 0.1 UI DJE4 35-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 2.5 Gbps PRBS15, EQ = 1F'h, DEM = 0 dB 0.05 UI DJE5 10 meters 30 awg cable, Residual deterministic VID = 0.8 Vp-p, jitter at 10.3125 Gbps PRBS15, EQ = 2F'h, DEM = 0 dB 0.3 UI DJE6 10 meters 30 awg cable, Residual deterministic VID = 0.8 Vp-p, jitter at 8 Gbps PRBS15, EQ = 2F'h, DEM = 0 dB 0.16 UI DJE7 10 meters 30 awg cable, Residual deterministic VID = 0.8 Vp-p, jitter at 5 Gbps PRBS15, EQ = 2F'h, DEM = 0 dB 0.1 UI DJE8 10 meters 30 awg cable, Residual deterministic VID = 0.8 Vp-p, jitter at 2.5 Gbps PRBS15, EQ = 2F'h, DEM = 0 dB 0.05 UI DJD1 10-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 2.5 Gbps and PRBS15, EQ = 00, 5.0 Gbps VOD = 1 Vp-p, DEM = −3.5 dB 0.1 UI DJD2 20-in 4 mils FR4, Residual deterministic VID = 0.8 Vp-p, jitter at 2.5 Gbps and PRBS15, EQ = 00, 5.0 Gbps VOD = 1 Vp-p, DEM = −9 dB 0.1 UI DJD3 20-in 4 mils FR4, VID = 0.8 Vp-p, Residual deterministic PRBS15, EQ = 00, jitter at 10.3125 Gbps VOD = 1 Vp-p, DEM = −9 dB 0.1 UI DE-EMPHASIS (MODE = 0) 10 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 6.6 Electrical Characteristics – Serial Management Bus Interface Over recommended operating supply and temperature ranges unless other specified. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SERIAL BUS INTERFACE DC SPECIFICATIONS VIL Data, clock input low voltage VIH Data, clock input high voltage IPULLUP Current through pullup resistor or current source VDD Nominal bus voltage ILEAK-Bus Input leakage per bus segment ILEAK-Pin Input leakage per device Pin CI RTERM (1) (2) (3) 2.1 High power specification 0.8 V 3.6 V 4 mA 2.375 3.6 V –200 200 µA See (1) Capacitance for SDA and SCL See (1) (2) External termination resistance pull to VDD = 2.5 V ± 5% OR 3.3 V ± 10% Pullup VDD = 3.3 V (1) (2) (3) 2000 Ω (1) (2) (3) 1000 Ω –15 Pullup VDD = 2.5 V µA 10 pF Recommended value. Recommended maximum capacitance load per bus segment is 400pF. Maximum termination voltage should be identical to the device supply voltage. 6.7 Timing Requirements – Serial Bus Interface MIN NOM 280 400 ENSMB = VDD (slave mode) MAX UNIT 400 kHz 520 kHz FSMB Bus operating frequency TBUF Bus free time between stop and start condition 1.3 µs THD:STA Hold time after (repeated) start condition. After this period, the first clock is generated. 0.6 µs TSU:STA Repeated start condition set-up time 0.6 µs TSU:STO Stop condition set-up time 0.6 µs THD:DAT Data hold time 0 ns TSU:DAT Data set-up time 100 ns TLOW Clock low period 1.3 THIGH Clock high period 0.6 tF Clock / data fall time tR Clock / data rise time tPOR Time in which a device must be operational after power-on reset (1) (2) ENSMB = FLOAT (master mode) At IPULLUP, maximum See See (1) (1) (2) µs 50 µs 300 ns 300 ns 500 ms Compatible with SMBus 2.0 physical layer specification. See System Management Bus (SMBus) Specification Version 2.0, section 3.1.1 SMBus Common AC Specifications for details Specified by Design. Parameter not tested in production. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 11 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com (OUT+) 80% 80% VOD (p-p) = (OUT+) ± (OUT-) 0V 20% 20% (OUT-) tRISE tFALL Figure 1. CML Output and Rise and FALL Transition Time + IN 0V tPHLD tPLHD + 0V OUT - Figure 2. Propagation Delay Timing Diagram + IN 0V DATA tIDLE-DATA tDATA-IDLE + OUT 0V DATA IDLE IDLE Figure 3. Transmit IDLE-DATA and DATA-IDLE Response Time tLOW tR tHIGH SCL tHD:STA tBUF tHD:DAT tF tSU:STA tSU:DAT tSU:STO SDA SP ST SP ST Figure 4. SMBus Timing Parameters 12 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 6.8 Typical Characteristics 1050 460.0 VDD = 2.625V 450.0 T = 25°C VDD = 2.5V 440.0 1040 VDD = 2.375V 420.0 VOD (mVp-p) PD (mW) 430.0 410.0 400.0 390.0 1030 1020 380.0 1010 T = 25°C 370.0 360.0 1000 2.375 350.0 0.8 0.9 1 1.1 1.2 1.3 2.5 2.625 VDD (V) VOD (Vp-p) Figure 6. Output Differential Voltage (VOD = 1 Vp-p) vs Supply Voltage (VDD) Figure 5. Power Dissipation (PD) vs Output Differential Voltage (VOD) 1040 VDD = 2.5V VOD (mVp-p) 1030 1020 1010 1000 - 40 -15 10 35 60 85 TEMPERATURE (°C) Figure 7. Output Differential Voltage (VOD = 1 Vp-p) vs Temperature Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 13 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 7 Detailed Description 7.1 Overview The DS100MB203 is a dual lane 2:1 multiplexer and 1:2 switch or fan-out buffer with signal conditioning. The DS100MB203 compensates for lossy FR-4 printed-circuit-board backplanes and balanced cables. The DS100MB203 operates in 3 modes: Pin Control Mode (ENSMB = 0), SMBus Slave Mode (ENSMB = 1) and SMBus Master Mode (ENSMB = float) to load register information from external EEPROM; please refer to SMBUS Master Mode for additional information. 7.2 Functional Block Diagram One of Two 2:1 / 1:2 Ports VDD S_INA_n+ EQ S_INA_nOUTA_n+ VDD Predriver Driver OUTA_n- S_INB_n+ EQ S_INB_n- SEL[1:0] VDD D_INn+ EQ D_INn- S_OUTA_n+ Predriver Driver Predriver Driver S_OUTA_n- ENSMB EQ_D[1:0] S_OUTB_n+ S_OUTB_n- DEM_D[1:0] EQ_S[1:0] DEM_S[1:0] READ_EN ALL_DONE AD[3:0] SCL SDA Digital Core and SMBus Registers Internal voltage regulator RESET SEL[1:0] VDD_SEL VIN 14 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 7.3 Feature Description 7.3.1 4-Level Input Configuration Guidelines The 4-level input pins use a resistor divider to help set the four valid control levels and provide a wider range of control settings when ENSMB = 0. There is an internal 30-kΩ pullup and a 60-kΩ pulldown connected to the package pin. These resistors, together with the external resistor connection, combine to achieve the desired voltage level. By using the 1-kΩ pulldown, 20-kΩ pulldown, no connect, and 1-kΩ pullup, the optimal voltage levels for each of the four input states are achieved as shown in Table 1. Table 1. 4–Level Control Pin Settings RESULTING PIN VOLTAGE LEVEL SETTING 0 Tie 1 kΩ to GND 0.1 V 0.08 V R Tie 20 kΩ to GND 1/3 x VIN 1/3 x VDD 3.3-V MODE 2.5-V MODE F Float (leave pin open) 2/3 x VIN 2/3 x VDD 1 Tie 1 kΩ to VIN or VDD VIN – 0.05 V VDD – 0.04 V The typical 4-Level input thresholds are as follows: • Internal Threshold between 0 and R = 0.2 × VIN or VDD • Internal Threshold between R and F = 0.5 × VIN or VDD • Internal Threshold between F and 1 = 0.8 × VIN or VDD In order to minimize the start-up current associated with the integrated 2.5-V regulator, the 1-kΩ pullup and pulldown resistors are recommended. If several four level inputs require the same setting, it is possible to combine two or more 1-kΩ resistors into a single lower value resistor. As an example, combining two inputs with a single 500-Ω resistor is a valid way to save board space. 7.4 Device Functional Modes 7.4.1 Pin Control Mode When in pin mode (ENSMB = 0) , the repeater is configurable with external pins. Equalization and de-emphasis can be selected through pin for each side independently. When de-emphasis is asserted VOD is automatically adjusted per Table 3. The receiver electrical idle detect threshold is also adjustable via the SD_TH pin. 7.4.2 SMBUS Mode When in SMBus mode (ENSMB = 1), the VOD (output amplitude), equalization, de-emphasis, and termination disable features are all programmable on a individual lane basis, instead of grouped by A or B as in the pin mode case. Upon assertion of ENSMB the MODE, EQx and DEMx functions revert to register control immediately. The EQx and DEMx pins are converted to AD0-AD3 SMBus address inputs. The other external control pins remain active unless their respective registers are written to and the appropriate override bit is set, in which case they are ignored until ENSMB is driven low (pin mode). On power up and when ENSMB is driven low all registers are reset to their default state. If RESET is asserted while ENSMB is high, the registers retain their current state. Equalization settings accessible through the pin controls were chosen to meet the needs of most applications. If additional fine tuning or adjustment is needed, additional equalization settings can be accessed through the SMBus registers. Each input has a total of 256 possible equalization settings. The tables show the 16 setting when the device is in pin mode. When using SMBus mode, the equalization, VOD and de-Emphasis levels are set by registers. The input control pins have been enhanced to have 4 different levels and provide a wider range of control settings when ENSMB=0. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 15 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Device Functional Modes (continued) Table 2. Equalizer Settings LEVEL EQ_D1 EQ_S1 EQ_D0 EQ_S0 EQ – 8 BITS [7:0] dB AT 1.25 GHz dB AT 2.5 GHz dB AT 4 GHz dB AT 5 GHz SUGGESTED USE (1) 1 0 0 0000 0000 = 0x00 2.1 3.7 4.9 5.3 FR4 < 5 inch trace 2 0 R 0000 0001 = 0x01 3.4 5.8 7.9 8.7 FR4 5 inch 5–mil trace 3 0 Float 0000 0010 = 0x02 4.8 7.7 9.9 10.6 FR4 5 inch 4–mil trace 4 0 1 0000 0011 = 0x03 5.9 8.9 11.0 11.7 FR4 10 inch 5–mil trace 5 R 0 0000 0111 = 0x07 7.2 11.2 14.3 15.6 FR4 10 inch 4–mil trace 6 R R 0001 0101 = 0x15 6.1 11.4 14.6 16.6 FR4 15 inch 4–mil trace 7 R Float 0000 1011 = 0x0B 8.8 13.5 17.0 18.3 FR4 20 inch 4–mil trace 8 R 1 0000 1111 = 0x0F 10.2 15.0 18.5 19.7 FR4 25 to 30 inch 4–mil trace (1) 9 Float 0 0101 0101 = 0x55 7.5 12.8 18.0 20.3 FR4 30 inch 4–mil trace 10 Float R 0001 1111 = 0x1F 11.4 17.4 22.0 23.6 FR4 35 inch 4–mil trace 11 Float Float 0010 1111 = 0x2F 13.0 19.7 24.4 25.8 10-m, 30-awg cable 12 Float 1 0011 1111 = 0x3F 14.2 21.1 25.8 27.0 13 1 0 1010 1010 = 0xAA 13.8 21.7 27.4 29.1 14 1 R 0111 1111 = 0x7F 15.6 23.5 29.0 30.7 15 1 Float 1011 1111 = 0xBF 17.2 25.8 31.4 32.7 16 1 1 1111 1111 = 0xFF 18.4 27.3 32.7 33.8 10-m – 12-m cable FR4 lengths are for reference only. FR4 lengths based on a 100-Ω differential stripline with 5-mil traces and 8-mil trace separation. Table 3. De-Emphasis and Output Voltage Settings (1) 16 LEVEL DEM_D1 DEM_S1 DEM_D0 DEM_S0 VOD Vp-p DEM dB INNER AMPLITUDE Vp-p SUGGESTED USE (1) 1 2 0 0 0.6 0 0.6 FR4 <5 inch 4–mil trace 0 R 0.8 0 0.8 3 FR4 <5 inch 4–mil trace 0 Float 0.8 –3.5 0.55 FR4 10 inch 4–mil trace 4 0 1 0.9 0 1.0 FR4 <5 inch 4–mil trace 5 R 0 0.9 –3.5 0.45 FR4 10 inch 4–mil trace 6 R R 0.9 –6 0.5 FR4 15 inch 4–mil trace 7 R Float 1.0 0 1.0 FR4 <5 inch 4–mil trace 8 R 1 1.0 –3.5 0.7 FR4 10 inch 4–mil trace 9 Float 0 1.0 –6 0.5 FR4 15 inch 4–mil trace 10 Float R 1.1 0 1.1 FR4 <5 inch 4–mil trace 11 Float Float 1.1 –3.5 0.7 FR4 10 inch 4–mil trace 12 Float 1 1.1 –6 0.55 FR4 15 inch 4–mil trace 13 1 0 1.2 0 1.2 FR4 <5 inch 4–mil trace 14 1 R 1.2 –3.5 0.8 FR4 10 inch 4–mil trace 15 1 Float 1.2 –6 0.6 FR4 15 inch 4–mil trace 16 1 1 1.2 –9 0.45 FR4 20 inch 4–mil trace The VOD output amplitude and DEM de-emphasis levels are set with the DEMD/S[1:0] pins. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 4. Input Termination Condition with RESET, INPUT_EN and SEL0 / SEL1 RESET INPUT_EN SEL0 SEL1 1 X X Low Power High Z High Z High Z 0 0 X Manual Mux Mode 50 Ω 50 Ω 50 Ω 0 R X Reserved Reserved Reserved Reserved High Z Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω Auto - continuous poll, DIN_B High Z Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω Auto - continuous poll, DIN_A Auto RX-Detect, output tests every 12 msec until detection occurs, input High Z termination is high-z until detection; once detected input termination is 50 Ω Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω Auto RX-Detect, output tests every 12 msec until detection occurs, input termination is high-z until detection; once detected input termination is 50 Ω 50 Ω 0 0 0 F F F 0 R F INPUT_TERM S_INA0, S_INA1 MODE Auto - continuous poll, DIN_B INPUT_TERM S_INB0, S_INB1 0 F 1 Auto - continuous poll, DIN_A Auto RX-Detect, output tests every 12 msec until detection occurs, input High Z termination is high-z until detection; once detected input termination is 50 Ω 0 1 X Manual Fanout Mode 50 Ω 50 Ω INPUT_TERM D_IN0, D_IN1 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 17 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 5. Mux/Switch and FANOUT Control SEL0 18 SEL1 INPUT_EN DESCRIPTION OF CONNECTION PATH 0 0 0 D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTB0. S_OUTA0 is in IDLE (output muted). D_IN1 connects to S_OUTB1. S_OUTA1 is in IDLE (output muted). 0 0 R Reserved 0 0 F D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTB0. S_OUTA0 is in IDLE (output muted). D_IN1 connects to S_OUTB1. S_OUTA1 is in IDLE (output muted). 0 0 1 D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTB0 and S_OUTA0. D_IN1 connects to S_OUTB1 and S_OUTA1. R R 0 D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTA0. S_OUTB0 is in IDLE (output muted). D_IN1 connects to S_OUTA1. S_OUTB1 is in IDLE (output muted). R R R Reserved R R F D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTA0. S_OUTB0 is in IDLE (output muted). D_IN1 connects to S_OUTA1. S_OUTB1 is in IDLE (output muted). R R 1 D_OUT0 connects to S_INB0. D_OUT1 connects to S_INB1. D_IN0 connects to S_OUTB0 and S_OUTA0. D_IN1 connects to S_OUTB1 and S_OUTA1. F F 0 D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTB0. S_OUTA0 is in IDLE (output muted). D_IN1 connects to S_OUTB1. S_OUTA1 is in IDLE (output muted). F F R Reserved F F F D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTB0. S_OUTA0 is in IDLE (output muted). D_IN1 connects to S_OUTB1. S_OUTA1 is in IDLE (output muted). F F 1 D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTB0 and S_OUTA0. D_IN1 connects to S_OUTB1 and S_OUTA1. 1 1 0 D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTA0. S_OUTB0 is in IDLE (output muted). D_IN1 connects to S_OUTA1. S_OUTB1 is in IDLE (output muted). 1 1 R Reserved 1 1 F D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTA0. S_OUTB0 is in IDLE (output muted). D_IN1 connects to S_OUTA1. S_OUTB1 is in IDLE (output muted). 1 1 1 D_OUT0 connects to S_INA0. D_OUT1 connects to S_INA1. D_IN0 connects to S_OUTA0 and S_OUTB0. D_IN1 connects to S_OUTA1 and S_OUTB1. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 7.5 Programming 7.5.1 SMBUS Master Mode The DS100MB203 devices support reading directly from an external EEPROM device by implementing SMBus Master mode. When using the SMBus master mode, the DS100MB203 will read directly from specific location in the external EEPROM. When designing a system for using the external EEPROM, the user needs to follow these specific guidelines below. NOTE SEL0, SEL1 and INPUT_EN control are to be set with the external strap pins because there are no register bits to configure them. • • • Set ENSMB = Float – enable the SMBUS master mode. The external EEPROM device address byte must be 0xA0'h and capable of 1-MHz operation at 2.5-V and 3.3-V supply. The maximum allowed size is 8 kbits (1024 bytes). Set the AD[3:0] inputs for SMBus address byte. When the AD[3:0] = 0000'b, the device address byte is B0'h. When tying multiple DS100MB203 devices to the SDA and SCL bus, use these guidelines to configure the devices. • Use SMBus AD[3:0] address bits so that each device can loaded its configuration from the EEPROM. Example below is for 4 device. U1: AD[3:0] = 0000 = 0xB0'h, U2: AD[3:0] = 0001 = 0xB2'h, U3: AD[3:0] = 0010 = 0xB4'h, U4: AD[3:0] = 0011 = 0xB6'h • Use a pull-up resistor on SDA and SCL; value = 2 kΩ • Daisy-chain READEN# (pin 26) and ALL_DONE# (pin 27) from one device to the next device in the sequence so that they do not compete for the EEPROM at the same time. 1. Tie READEN# of the 1st device in the chain (U1) to GND 2. Tie ALL_DONE# of U1 to READEN# of U2 3. Tie ALL_DONE# of U2 to READEN# of U3 4. Tie ALL_DONE# of U3 to READEN# of U4 5. Optional: Tie ALL_DONE# output of U4 to a LED to show the devices have been loaded successfully Below is an example of a 2 kbits (256 x 8-bit) EEPROM in hex format for the DS100MB203 device. The first 3 bytes of the EEPROM always contain a header common and necessary to control initialization of all devices connected to the I2C bus. CRC enable flag to enable/disable CRC checking. If CRC checking is disabled, a fixed pattern (8’hA5) is written/read instead of the CRC byte from the CRC location, to simplify the control. There is a MAP bit to flag the presence of an address map that specifies the configuration data start in the EEPROM. If the MAP bit is not present the configuration data start address is derived from the DS100MB203 address and the configuration data size. A bit to indicate an EEPROM size > 256 bytes is necessary to properly address the EEPROM. There are 37 bytes of data size for each DS100MB203 device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he maximum EEPROM size supported is 8 kbits (1024 × 8 bits). For more information in regards to EEPROM programming and the hex format, see SNLA228. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 19 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 7.6 Register Maps 7.6.1 System Management Bus (SMBus) and Configuration Registers The System Management Bus interface is compatible to SMBus 2.0 physical layer specification. ENSMB = 1 kΩ to VDD to enable SMBus slave mode and allow access to the configuration registers. The DS100MB203 has the AD[3:0] inputs in SMBus mode. These pins are the user set SMBUS slave address inputs. The AD[3:0] pins have internal pulldown. When left floating or pulled low the AD[3:0] = 0000'b, the device default address byte is B0'h. Based on the SMBus 2.0 specification, the DS100MB203 has a 7-bit slave address. The LSB is set to 0'b (for a WRITE). The device supports up to 16 address bytes, which can be set with the AD[3:0] inputs. Below are the 16 addresses. Table 6. Device Slave Address Bytes AD[3:0] SETTINGS ADDRESS BYTES (HEX) 0000 B0 0001 B2 0010 B4 0011 B6 0100 B8 0101 BA 0110 BC 0111 BE 1000 C0 1001 C2 1010 C4 1011 C6 1100 C8 1101 CA 1110 CC 1111 CE The SDA, SCL pins are 3.3-V tolerant, but are not 5-V tolerant. External pullup resistor is required on the SDA. The resistor value can be from 1 kΩ to 5 kΩ depending on the voltage, loading and speed. The SCL may also require an external pullup resistor and it depends on the Host that drives the bus. 7.6.1.1 Transfer of Data Through the SMBus During normal operation the data on SDA must be stable during the time when SCL is high. There are three unique states for the SMBus: • START: A high-to-low transition on SDA while SCL is high indicates a message START condition. • STOP: A low-to-high transition on SDA while SCL is high indicates a message STOP condition. • IDLE: If SCL and SDA are both high for a time exceeding tBUF from the last detected STOP condition or if they are high for a total exceeding the maximum specification for tHIGH then the bus will transfer to the IDLE state. 7.6.1.2 SMBus Transactions The device supports WRITE and READ transactions. See Table 8 for register address, type (Read/Write, Read Only), default value and function information. 20 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 7.6.1.3 Writing a Register To 1. 2. 3. 4. 5. 6. 7. write a register, the following protocol is used (see SMBus 2.0 specification). The host drives a START condition, the 7-bit SMBus address, and a 0 indicating a WRITE. The device (slave) drives the ACK bit (0). The host drives the 8-bit register address. The device drives an ACK bit (0). The host drive the 8-bit data byte. The device drives an ACK bit (0). The host drives a STOP condition. The WRITE transaction is completed, the bus goes IDLE and communication with other SMBus devices may now occur. 7.6.1.4 Reading a Register To read a register, the following protocol is used (see SMBus 2.0 specification). 1. The host drives a START condition, the 7-bit SMBus address, and a 0 indicating a WRITE. 2. The device (Slave) drives the ACK bit (0). 3. The host drives the 8-bit register address. 4. The device drives an ACK bit (0). 5. The host drives a START condition. 6. The host drives the 7-bit SMBus Address, and a 1 indicating a READ. 7. The device drives an ACK bit 0. 8. The device drives the 8-bit data value (register contents). 9. The host drives a NACK bit 1 indicating end of the READ transfer. 10. The host drives a STOP condition. The READ transaction is completed, the bus goes IDLE and communication with other SMBus devices may now occur. Please see Table 7 for more information. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 21 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map ADDRESS 0x00 0x01 0x02 FIELD TYPE 7 Reserved R/W 6:3 Address Bit AD[3:0] R 2 EEPROM Read Done R 1 = Device completed the read from external EEPROM 1 Block Reset R/W 1: Block bit 0 from resetting the registers; self clearing. 0 Reset R/W SMBus reset 1: Reset registers to default value; self clearing. R/W Power down per channel [7]: CH7 (NC – S_OUTB1) [6]: CH6 (D_IN1 – S_OUTA1) [5]: CH5 (NC – S_OUTB0) [4]: CH4 (D_IN0 – S_OUTA0) [3]: CH3 (D_OUT1 – S_INB1) [2]: CH2 (NC – S_INA1) [1]: CH1 (D_OUT0 – S_INB0) [0]: CH0 (NC – S_INA0) 0x00 = all channels enabled 0xFF = all channels disabled Note: Override PWDN pin and enable register control through Reg 0x02[0] Observation PWDN Channels Override RESET Control DEFAULT Observation of AD[3:0] bits [6]: AD3 [5]: AD2 [4]: AD1 [3]: AD0 0x00 7:0 PWDN CHx 7 Reserved 6 Reserved 5:2 Reserved 1 Reserved 0 Override RESET DESCRIPTION Set bit to 0 0x00 Yes Set bit to 0 Set bit to 0 R/W 0x00 Yes Set bits to 0 Set bit to 0 Yes Reserved 7:0 Reserved R/W 0x00 0x04 Reserved 7:0 Reserved R/W 0x00 0x05 Reserved 7:0 Reserved R/W 0x00 7:5 Reserved 4 Reserved 3 Register Enable 2:0 Reserved Slave Register Control EEPROM REG BIT BIT 0x03 0x06 22 REGISTER NAME 1: Block RESET pin control; use Reg_01 to configure. 0: Allow RESET pin control. Set bits to 0 Yes Set bits to 0 Reserved Set bits to 0 Yes R/W 0x10 Set bit to 1 1 = Enable SMBus slave mode register control 0 = Disable SMBus register control Note: In order to change VOD, DEM, and EQ of the channels in slave mode, this bit must be set to 1. Set bits to 0 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME 0x07 Reserved 0x08 Override Pin Control BIT FIELD 7:1 Reserved 0 Reserved 7 Reserved 6:4 Reserved 3 Override RXDET 2 TYPE DEFAULT R/W 0x01 Yes 1 = Block RXDET pin control (register control enabled) 0 = Allow RXDET pin control (register control disabled) Override MODE Yes 1: Block MODE pin control; use register to configure. 0: Allow MODE pin control 1:0 Reserved Yes Set bits to 0 R/W 0x00 7:0 Reserved R/W 0x00 Reserved 7:0 Reserved R 0x00 0x0B Reserved 7 Reserved R/W 6:0 Reserved R/W 0x0C-0x0D Reserved 7:0 Reserved R/W 7:6 Reserved 5:4 Reserved 0x0F 0x10 Set bit to 1 Set bits to 0 Reserved CH0 NC – S_INA0 EQ Set bits to 0 Set bit to 0 0x09 CH0 NC – S_INA0 RXDET DESCRIPTION Yes 0x0A 0x0E EEPROM REG BIT 0x70 Set bits to 0 Set bit to 0 Yes 0x00 Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control via Reg 0x08[3] 3:2 RXDET 1:0 Reserved 7:0 EQ Control R/W 0x2F Yes Reserved 7:0 Reserved R/W 0xAD Yes 7:3 Reserved 0x11 CH0 NC – S_INA0 Reserved R/W 0x02 0x12 CH0 NC – S_INA0 Reserved 2:0 Reserved 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved Set bits to 111 0000'b Set bits to 0 EQ Control - total of 256 levels. See Table 2. Set bits to 0 Yes Yes R/W 0x00 Set bit to 0 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 23 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME BIT FIELD TYPE DEFAULT 0x13-0x14 Reserved 7:0 Reserved R/W 0x00 7:6 Reserved 5:4 Reserved 0x15 0x16 0x17 CH1 D_OUT0 – S_INB0 RXDET CH1 D_OUT0 – S_INB0 EQ CH1 D_OUT0 – S_INB0 VOD 3:2 RXDET 1:0 Reserved 7:0 EQ Control 7 DESCRIPTION Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control through Reg 0x08[3] Set bits to 0 Yes EQ Control - total of 256 levels. See Table 2. Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: Override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W R/W 2:0 24 EEPROM REG BIT VOD Control 0x2F 0xAD Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x18 REGISTER NAME TYPE FIELD 7 RXDET Status 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 0x19 0x1A-0x1B Reserved 0x1C CH2 NC – S_INA1 RXDET 0x1D CH2 NC – S_INA1 EQ 0x1E Reserved 0x1F Reserved Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB Yes Set bit to 0 0x02 2:0 DEM Control 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved 7:6 Reserved 5:4 Reserved R/W R/W 0x00 R/W 0x00 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control through Reg 0x08[3] 3:2 RXDET 1:0 Reserved 7:0 EQ Control R/W 0x2F Yes 7:0 Reserved R/W 0xAD Yes Reserved R/W 0x02 7:3 2:0 DESCRIPTION Observation bit for RXDET CH1 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R CH1 D_OUT0 – S_INB0 DEM CH1 D_OUT0 – S_INB0 Reserved DEFAULT EEPROM REG BIT BIT Set bits to 0 EQ Control - total of 256 levels. See Table 2. Yes Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 25 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME 0x20 CH2 NC – S_INA1 Reserved 0x21-0x22 0x23 0x24 0x25 Reserved CH3 D_OUT1 – S_INB1 RXDET CH3 D_OUT1 – S_INB1 EQ CH3 D_OUT1 – S_INB1 VOD BIT FIELD 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved 7:6 Reserved 5:4 Reserved 3:2 RXDET 1:0 Reserved 7:0 EQ Control 7 DEFAULT EEPROM REG BIT Yes R/W R/W 0x00 DESCRIPTION Set bit to 0 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 0x00 Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control through Reg 0x08[3] Set bits to 0 Yes EQ Control - total of 256 levels. See Table 2. Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W R/W 2:0 26 TYPE VOD Control 0x2F 0xAD Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x26 0x27 0x28 0x29-0x2A REGISTER NAME TYPE FIELD 7 RXDET Status 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 DEM Control R/W Yes Set bit to 0 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7 Reserved 6 Reserved Yes Set bit to 0 5:4 High SD_TH Status Yes Enable higher range of signal detect status thresholds [5]: CH0 - CH3 [4]: CH4 - CH7 R/W 0x00 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Set bit to 0 3:2 Fast Signal Detect Status Yes Enable fast signal detect status [3]: CH0 - CH3 [2]: CH4 - CH7 Note: In fast signal detect, assert/de-assert response occurs after approximately 3-4 ns 1:0 Reduced SD Status Gain Yes Enable reduced signal detect status gain [1]: CH0 - CH3 [0]: CH4 - CH7 7:0 Reserved Signal Detect Status Control Reserved Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB 0x02 2:0 DESCRIPTION Observation bit for RXDET CH3 - CHB_3 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R CH3 D_OUT1 – S_INB1 DEM CH3 D_OUT1 – S_INB1 Reserved DEFAULT EEPROM REG BIT BIT R/W R/W 0x0C 0x00 Set bits to 0 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 27 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME 0x2B CH4 D_IN0 – S_OUTA0 RXDET 0x2C CH4 D_IN0 – S_OUTA0 EQ 0x2D CH4 D_IN0 – S_OUTA0 VOD BIT FIELD 7:6 Reserved 5:4 Reserved 3:2 RXDET 1:0 Reserved 7:0 EQ Control 7 DEFAULT EEPROM REG BIT DESCRIPTION Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control through Reg 0x08[3] Set bits to 0 Yes EQ Control - total of 256 levels. See Table 2. Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W R/W 2:0 28 TYPE VOD Control 0x2F 0xAD Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x2E REGISTER NAME 0x2F 0x30-0x31 Reserved 0x33 FIELD 7 RXDET Status Reserved CH5 NC – S_OUTB0 Reserved DEFAULT 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB Yes Set bit to 0 0x02 2:0 DEM Control 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved 7:6 Reserved 5:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved DESCRIPTION Observation bit for RXDET CH4 - CHA_0 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R CH4 D_IN0 – S_OUTA0 DEM CH4 D_IN0 – S_OUTA0 Reserved 0x32 TYPE EEPROM REG BIT BIT R/W R/W 0x00 R/W 0x00 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 R/W 0x2F Yes Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 29 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x34 0x35 REGISTER NAME CH5 NC – S_OUTB0 VOD FIELD 7 Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: Override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W 0x36 0x37-0x38 Reserved DEFAULT 0xAD DESCRIPTION 2:0 VOD Control 7 RXDET Status 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 Observation bit for RXDET CH5 - CHA1 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R CH5 NC – S_OUTB0 DEM CH5 NC – S_OUTB0 Reserved 30 TYPE EEPROM REG BIT BIT Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB Yes Set bit to 0 0x02 2:0 DEM Control 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved R/W R/W 0x00 R/W 0x00 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME 0x39 CH6 D_IN1 – S_OUTA1 RXDET 0x3A CH6 D_IN1 – S_OUTA1 EQ 0x3B CH6 D_IN1 – S_OUTA1 VOD BIT FIELD 7:6 Reserved 5:4 Reserved 3:2 RXDET 1:0 Reserved 7:0 EQ Control 7 TYPE DEFAULT EEPROM REG BIT DESCRIPTION Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes 00'b = Input is Hi-Z impedance 01'b = Auto Rx-Detect, outputs test every 12 ms for 600 ms (50 times) then stops; termination is Hi-Z until detection; once detected input termination is 50 Ω 10'b = Auto Rx-Detect, outputs test every 12 ms until detection occurs; termination is Hi-Z until detection; once detected input termination is 50 Ω 11'b = Input is 50 Ω Note: Override RXDET pin and enable register control through Reg 0x08[3] Set bits to 0 Yes EQ Control - total of 256 levels. See Table 2. Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 0101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W R/W 2:0 VOD Control 0x2F 0xAD Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 31 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x3C REGISTER NAME 0x3D 0x3E-0x3F Reserved 0x41 32 FIELD 7 RXDET Status Reserved CH7 NC – S_OUTB1 EQ DEFAULT 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB Yes Set bit to 0 0x02 2:0 DEM Control 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 Reserved 7:6 Reserved 5:4 Reserved 3:2 Reserved 1:0 Reserved 7:0 EQ Control DESCRIPTION Observation bit for RXDET CH6 - CHA_2 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R CH6 D_IN1 – S_OUTA1 DEM CH6 D_IN1 – S_OUTA1 Reserved 0x40 TYPE EEPROM REG BIT BIT R/W R/W 0x00 R/W 0x00 Set bits to 0 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 Set bits to 0 R/W 0x00 Yes Set bits to 0 Yes Set bits to 0 Set bits to 0 R/W 0x2F Yes EQ Control - total of 256 levels. See Table 2. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS 0x42 0x43 REGISTER NAME CH7 NC – S_OUTB1 VOD FIELD 7 Short Circuit Protection Yes 1 = Enable the short circuit protection 0 = Disable the short circuit protection 6 MODE Control Yes 1 = PCIe GEN 1/2, 10GE 0 = PCIe GEN 3, 10G-KR Note: Override the MODE pin in Reg_08. 5:3 Reserved Yes Set bits to 101'b Yes VOD Control: 000'b = 0.6 V 001'b = 0.7 V 010'b = 0.8 V 011'b = 0.9 V 100'b = 1.0 V 101'b = 1.1 (default) 110'b = 1.2 111'b = 1.3 R/W 7 RXDET Status 6:5 Reserved Set bits to 0 4:3 Reserved Set bits to 0 2:0 DEM Control 7 Reserved 6:4 Reserved 3:2 Reserved 1:0 Reserved 0x45 Reserved 7:0 0x46 Reserved Reserved 0x49-0x4B Reserved Observation bit for RXDET CH7 - CHA_3 1 = Input 50 Ω terminated to VDD 0 = Input is Hi-Z R Yes DEM Control 000'b = 0 dB 001'b = –1.5 dB 010'b = –3.5 dB (default) 011'b = –5 dB 100'b = –6 dB 101'b = –8 dB 110'b = –9 dB 111'b = –12 dB Yes Set bit to 0. 0x02 0x44 0x48 0xAD DESCRIPTION VOD Control CH7 NC – S_OUTB1 DEM Reserved DEFAULT 2:0 CH7 NC – S_OUTB1 Reserved 0x47 TYPE EEPROM REG BIT BIT R/W Set bits to 0. R/W 0x00 Reserved R/W 0x00 Set bits to 0. 7:0 Reserved R/W 0x38 Set bits to 0x38 7:4 Reserved 3:0 Reserved R/W 0x00 7:6 Reserved R/W 5:0 Reserved R/W 7:0 Reserved R/W 0x05 0x00 Yes Set bits to 0. Yes Set bits to 0. Set bits to 0. Yes Set bits to 0. Yes Set bits to 0. Set bits to 00 0101'b Set bits to 0. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 33 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 7. SMBUS Slave Mode Register Map (continued) ADDRESS REGISTER NAME 0x4C Reserved 0x4D-0x50 Reserved 7:5 VERSION BIT FIELD TYPE DEFAULT 7:3 Reserved R/W 2:1 Reserved R/W 0 Reserved R/W 7:0 Reserved R/W 0x00 R 0x46 EEPROM REG BIT Yes 0x00 DESCRIPTION Set bits to 0. Set bits to 0. Yes Set bits to 0. Set bits to 0. 010'b 0x51 Device ID 4:0 ID 0x52-0x55 Reserved 7:0 Reserved R/W 0x00 Set bits to 0. 0x56 Reserved 7:0 Reserved R/W 0x10 Set bits to 0x10 0x57 Reserved 7:0 Reserved R/W 0x64 Set bits to 0x64 0x58 Reserved 7:0 Reserved R/W 0x21 Set bits to 0x21 7:1 Reserved 0 Reserved R/W 0x00 0x59 Reserved 0x5A Reserved 7:0 Reserved R/W 0x5B Reserved 7:0 Reserved R/W 0x5C-0x5D Reserved 7:0 Reserved R/W 0x00 7:3 Reserved 2 Override SEL1 pin 1 Override SEL0 pin 0 Override INPUT_EN pin 0x5E Override SEL[1:0] and INPUT_EN 0x5F 34 Set bits to 0. Yes Set bit to 0. 0x54 Yes Set bits to 0x54 0x54 Yes Set bits to 0x54 Set bits to 0. Set bits to 0. 1: Block SEL1 pin control; use Reg_5F to configure. 0: Allow SEL1 pin control R/W 0x00 1: Block SEL0 pin control; use Reg_5F to configure. 0: Allow SEL0 pin control 1: Block INPUT_EN pin control; use Reg_5F to configure. 0: Allow INPUT_EN pin control SEL1 Control Select for Lane 1. 00: 0 - selects input S_INB1±, output S_OUTB1±. 01: 20 kΩ to GND - selects input S_INB1±, output S_OUTA1± 10: FLOAT - selects input S_INA1±, output S_OUTB1± 11: 1 - selects input S_INA1±, output S_OUTA1±. 5:4 SEL0 Control Select for Lane 0. 00: 0 - selects input S_INB0±, output S_OUTB0±. 01: 20kΩ to GND - selects input S_INB0±, output S_OUTA0± 10: FLOAT - selects input S_INA0±, output S_OUTB0± 11: 1 - selects input S_INA0±, output S_OUTA0±. 3:2 INPUT_EN Control 1:0 Reserved 7:6 Control SEL[1:0] and INPUT_EN 0 0110'b R/W 0x00 1: Block SEL0 pin control; use Reg_5F to configure. 0: Allow SEL0 pin control 1: Block INPUT_EN pin control; use Reg_5F to configure. 0: Allow INPUT_EN pin control Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 8. EEPROM Register Map With Default Value EEPROM ADDRESS BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 CRC_EN Address Map Present EEPROM > 256 Bytes Reserved DEVICE COUNT[3] DEVICE COUNT[2] DEVICE COUNT[1] DEVICE COUNT[0] 0 0 0 0 0 0 0 0 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0 0 0 0 0 0 0 0 Max EEPROM Burst size[7] Max EEPROM Burst size[6] Max EEPROM Burst size[5] Max EEPROM Burst size[4] Max EEPROM Burst size[3] Max EEPROM Burst size[2] Max EEPROM Burst size[1] Max EEPROM Burst size[0] 0 0 0 0 0 0 0 0 Description PWDN_CH7 PWDN_CH6 PWDN_CH5 PWDN_CH4 PWDN_CH3 PWDN_CH2 PWDN_CH1 PWDN_CH0 SMBus Register 0x01[7] 0x01[6] 0x01[5] 0x01[4] 0x01[3] 0x01[2] 0x01[1] 0x01[0] 0 0 0 0 0 0 0 0 Description Reserved Reserved Reserved Reserved Ovrd_RESET Reserved Reserved Reserved SMBus Register 0x02[5] 0x02[4] 0x02[3] 0x02[2] 0x02[0] 0x04[7] 0x04[6] 0x04[5] 0 0 0 0 0 0 0 0 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x04[4] 0x04[3] 0x04[2] 0x04[1] 0x04[0] 0x06[4] 0x08[6] 0x08[5] 0 0 0 0 0 1 0 0 Reserved Ovrd_RXDET Ovrd_MODE Reserved Reserved Reserved Reserved Reserved 0x08[4] 0x08[3] 0x08[2] 0x08[1] 0x08[0] 0x0B[6] 0x0B[5] 0x0B[4] 0 0 0 0 0 1 1 1 Reserved Reserved Reserved Reserved Reserved Reserved CH0_RXDET_1 CH0_RXDET_0 0x0B[3] 0x0B[2] 0x0B[1] 0x0B[0] 0x0E[5] 0x0E[4] 0x0E[3] 0x0E[2] 0 0 0 0 0 0 0 0 Description CH0_EQ_7 CH0_EQ_6 CH0_EQ_5 CH0_EQ_4 CH0_EQ_3 CH0_EQ_2 CH0_EQ_1 CH0_EQ_0 SMBus Register 0x0F[7] 0x0F[6] 0x0F[5] 0x0F[4] 0x0F[3] 0x0F[2] 0x0F[1] 0x0F[0] 0 0 1 0 1 1 1 1 Description Default Value 0x00 0x00 Description Default Value 0x00 0x01 Description Default Value Default Value Default Value Default Value 0x02 0x00 0x03 0x00 0x04 0x00 0x05 0x04 Description SMBus Register Default Value 0x06 0x07 Description SMBus Register Default Value Default Value 0x07 0x00 0x2F 0x08 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 35 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 8. EEPROM Register Map With Default Value (continued) EEPROM ADDRESS BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x10[7] 0x10[6] 0x10[5] 0x10[4] 0x10[3] 0x10[2] 0x10[1] 0x10[0] 1 0 1 0 1 1 0 1 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x11[2] 0x11[1] 0x11[0] 0x12[7] 0x12[3] 0x12[2] 0x12[1] 0x12[0] 0 1 0 0 0 0 0 0 Reserved Reserved CH1_RXDET_1 CH1_RXDET_0 CH1_EQ_7 CH1_EQ_6 CH1_EQ_5 CH1_EQ_4 0x15[5] 0x15[4] 0x15[3] 0x15[2] 0x16[7] 0x16[6] 0x16[5] 0x16[4] 0 0 0 0 0 0 1 0 CH1_EQ_3 CH1_EQ_2 CH1_EQ_1 CH1_EQ_0 CH1_SCP CH1_Sel_MODE Reserved Reserved 0x16[3] 0x16[2] 0x16[1] 0x16[0] 0x17[7] 0x17[6] 0x17[5] 0x17[4] 1 1 1 1 1 0 1 0 Description Reserved CH1_VOD_2 CH1_VOD_1 CH1_VOD_0 CH1_DEM_2 CH1_DEM_1 CH1_DEM_0 Reserved SMBus Register 0x17[3] 0x17[2] 0x17[1] 0x17[0] 0x18[2] 0x18[1] 0x18[0] 0x19[7] 1 1 0 1 0 1 0 0 Description Reserved Reserved Reserved Reserved Reserved Reserved CH2_RXDET_1 CH2_RXDET_0 SMBus Register 0x19[3] 0x19[2] 0x19[1] 0x19[0] 0x1C[5] 0x1C[4] 0x1C[3] 0x1C[2] 0 0 0 0 0 0 0 0 Description CH2_EQ_7 CH2_EQ_6 CH2_EQ_5 CH2_EQ_4 CH2_EQ_3 CH2_EQ_2 CH2_EQ_1 CH2_EQ_0 SMBus Register 0x1D[7] 0x1D[6] 0x1D[5] 0x1D[4] 0x1D[3] 0x1D[2] 0x1D[1] 0x1D[0] 0 0 1 0 1 1 1 1 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x1E[7] 0x1E[6] 0x1E[5] 0x1E[4] 0x1E[3] 0x1E[2] 0x1E[1] 0x1E[0] 1 0 1 0 1 1 0 1 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0x1F[2] 0x1F[1] 0x1F[0] 0x20[7] 0x20[3] 0x20[2] 0x20[1] 0x20[0] 0 1 0 0 0 0 0 0 Default Value 0x09 0xAD Default Value 0x0A 0x40 Description SMBus Register Default Value 0x0B 0x02 Description SMBus Register Default Value 0x0C 0xFA Default Value 0x0D 0xD4 Default Value 0x0E 0x00 Default Value 0x0F 0x2F Default Value 0x10 0xAD Description SMBus Register Default Value 36 0x40 0x11 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 8. EEPROM Register Map With Default Value (continued) EEPROM ADDRESS BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 Description Reserved Reserved CH3_RXDET_1 CH3_RXDET_0 CH3_EQ_7 CH3_EQ_6 CH3_EQ_5 CH3_EQ_4 SMBus Register 0x23[5] 0x23[4] 0x23[3] 0x23[2] 0x24[7] 0x24[6] 0x24[5] 0x24[4] 0 0 0 0 0 0 1 0 Description CH3_EQ_3 CH3_EQ_2 CH3_EQ_1 CH3_EQ_0 CH3_SCP CH3_Sel_MODE Reserved Reserved SMBus Register 0x24[3] 0x24[2] 0x24[1] 0x24[0] 0x25[7] 0x25[6] 0x25[5] 0x25[4] 1 1 1 1 1 0 1 0 Reserved CH3_VOD_2 CH3_VOD_1 CH3_VOD_0 CH3_DEM_2 CH3_DEM_1 CH3_DEM_0 Reserved 0x25[3] 0x25[2] 0x25[1] 0x25[0] 0x26[2] 0x26[1] 0x26[0] 0x27[7] 1 1 0 1 0 1 0 0 Reserved Reserved Reserved Reserved Reserved hi_idle_SD CH0-3 hi_idle_SD CH4-7 fast_SD CH0-3 0x27[3] 0x27[2] 0x27[1] 0x27[0] 0x28[6] 0x28[5] 0x28[4] 0x28[3] 0 0 0 0 0 0 0 1 Description fast_SD CH4-7 lo_gain_SD CH0-3 lo_gain_SD CH4-7 Reserved Reserved CH4_RXDET_1 CH4_RXDET_0 CH4_EQ_7 SMBus Register 0x28[2] 0x28[1] 0x28[0] 0x2B[5] 0x2B[4] 0x2B[3] 0x2B[2] 0x2C[7] 1 0 0 0 0 0 0 0 Description CH4_EQ_6 CH4_EQ_5 CH4_EQ_4 CH4_EQ_3 CH4_EQ_2 CH4_EQ_1 CH4_EQ_0 CH4_SCP SMBus Register 0x2C[6] 0x2C[5] 0x2C[4] 0x2C[3] 0x2C[2] 0x2C[1] 0x2C[0] 0x2D[7] 0 1 0 1 1 1 1 1 Description CH4_Sel_MODE Reserved Reserved Reserved CH4_VOD_2 CH4_VOD_1 CH4_VOD_0 CH4_DEM_2 SMBus Register 0x2D[6] 0x2D[5] 0x2D[4] 0x2D[3] 0x2D[2] 0x2D[1] 0x2D[0] 0x2E[2] 0 1 0 1 1 0 1 0 Description CH4_DEM_1 CH4_DEM_0 Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x2E[1] 0x2E[0] 0x2F[7] 0x2F[3] 0x2F[2] 0x2F[1] 0x2F[0] 0x32[5] 1 0 0 0 0 0 0 0 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0x32[4] 0x32[3] 0x32[2] 0x33[7] 0x33[6] 0x33[5] 0x33[4] 0x33[3] 0 0 0 0 0 1 0 1 Default Value Default Value 0x12 0x02 0x13 0xFA Description SMBus Register Default Value 0x14 0xD4 Description SMBus Register Default Value Default Value Default Value Default Value Default Value 0x15 0x01 0x16 0x80 0x17 0x5F 0x18 0x5A 0x19 0x80 Description SMBus Register Default Value 0x05 0x1A Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 37 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Table 8. EEPROM Register Map With Default Value (continued) EEPROM ADDRESS BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 Description Reserved Reserved Reserved CH5_SCP CH5_Sel_MODE Reserved Reserved Reserved SMBus Register 0x33[2] 0x33[1] 0x33[0] 0x34[7] 0x34[6] 0x34[5] 0x34[4] 0x34[3] 1 1 1 1 0 1 0 1 Description CH5_VOD_2 CH5_VOD_1 CH5_VOD_0 CH5_DEM_2 CH5_DEM_1 CH5_DEM_0 Reserved Reserved SMBus Register 0x34[2] 0x34[1] 0x34[0] 0x35[2] 0x35[1] 0x35[0] 0x36[7] 0x36[3] 1 0 1 0 1 0 0 0 Reserved Reserved Reserved Reserved Reserved CH6_RXDET_1 CH6_RXDET_0 CH6_EQ_7 0x36[2] 0x36[1] 0x36[0] 0x39[5] 0x39[4] 0x39[3] 0x39[2] 0x3A[7] 0 0 0 0 0 0 0 0 CH6_EQ_6 CH6_EQ_5 CH6_EQ_4 CH6_EQ_3 CH6_EQ_2 CH6_EQ_1 CH6_EQ_0 CH6_SCP 0x3A[6] 0x3A[5] 0x3A[4] 0x3A[3] 0x3A[2] 0x3A[1] 0x3A[0] 0x3B[7] 0 1 0 1 1 1 1 1 Description CH6_Sel_MODE Reserved Reserved Reserved CH6_VOD_2 CH6_VOD_1 CH6_VOD_0 CH6_DEM_2 SMBus Register 0x3B[6] 0x3B[5] 0x3B[4] 0x3B[3] 0x3B[2] 0x3B[1] 0x3B[0] 0x3C[2] 0 1 0 1 1 0 1 0 Description CH6_DEM_1 CH6_DEM_0 Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x3C[1] 0x3C[0] 0x3D[7] 0x3D[3] 0x3D[2] 0x3D[1] 0x3D[0] 0x40[5] 1 0 0 0 0 0 0 0 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x40[4] 0x40[3] 0x40[2] 0x41[7] 0x41[6] 0x41[5] 0x41[4] 0x41[3] 0 0 0 0 0 1 0 1 Description Reserved Reserved Reserved CH7_SCP CH7_Sel_MODE Reserved Reserved Reserved SMBus Register 0x41[2] 0x41[1] 0x41[0] 0x42[7] 0x42[6] 0x42[5] 0x42[4] 0x42[3] 1 1 1 1 0 1 0 1 CH7_VOD_2 CH7_VOD_1 CH7_VOD_0 CH7_DEM_2 CH7_DEM_1 CH7_DEM_0 Reserved Reserved 0x42[2] 0x42[1] 0x42[0] 0x43[2] 0x43[1] 0x43[0] 0x44[7] 0x44[3] 1 0 1 0 1 0 0 0 Default Value 0x1B 0xF5 Default Value 0x1C 0xA8 Description SMBus Register Default Value 0x1D 0x00 Description SMBus Register Default Value 0x1E 0x5F Default Value 0x1F 0x5A Default Value 0x20 0x80 Default Value 0x21 0x05 Default Value 0x22 0xF5 Description SMBus Register Default Value 38 0xA8 0x23 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Table 8. EEPROM Register Map With Default Value (continued) EEPROM ADDRESS BYTE BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x44[2] 0x44[1] 0x44[0] 0x47[3] 0x47[2] 0x47[1] 0x47[0] 0x48[7] 0 0 0 0 0 0 0 0 Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMBus Register 0x48[6] 0x4C[7] 0x4C[6] 0x4C[5] 0x4C[4] 0x4C[3] 0x4C[0] 0x59[0] 0 0 0 0 0 0 0 0 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0x5A[7] 0x5A[6] 0x5A[5] 0x5A[4] 0x5A[3] 0x5A[2] 0x5A[1] 0x5A[0] 0 1 0 1 0 1 0 0 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 0x5B[7] 0x5B[6] 0x5B[5] 0x5B[4] 0x5B[3] 0x5B[2] 0x5B[1] 0x5B[0] 0 1 0 1 0 1 0 0 Default Value Default Value 0x24 0x00 0x25 0x00 Description SMBus Register Default Value 0x26 0x54 Description SMBus Register Default Value 0x54 0x27 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 39 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 8 Application and Implementation 8.1 Application Information 8.1.1 General Recommendations The DS100MB203 is a high-performance circuit capable of delivering excellent performance. Pay careful attention to the details associated with high-speed design as well as providing a clean power supply. Refer to the information below and Revision 4 of the LVDS Owner's Manual for more detailed information on high speed design tips to address signal integrity design issues. Pattern Generator VID = 1.0 Vp-p, DE = 0 dB PRBS15 TL Lossy Channel IN DS100MB203 OUT Scope BW = 60 GHz Figure 8. Test Set-Up Connections Diagram Pattern Generator VID = 1.0 Vp-p, DE = 0 dB PRBS15 TL1 Lossy Channel IN DS100MB203 OUT TL2 Lossy Channel Scope BW = 60 GHz Figure 9. Test Set-Up Connections Diagram 40 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 8.2 Typical Application MB203 SEL0 DRIVE 0 S_INA0 EXPANDER TXA_0 DRIVE 1 D_OUT0 RX S_INB0 TXB_0 TX S_INA1 TXA_1 D_OUT1 S_INA1 TXB_1 EXPANDER RX S_OUTA0 RXA_0 D_IN0 TX S_OUTB0 RXB_0 S_OUTA1 D_IN1 RXA_1 S_OUTB1 RXB_1 SEL1 Figure 10. Storage Application 8.2.1 Design Requirements As with any high-speed design, there are many factors which influence the overall performance. Below are a list of critical areas for consideration and study during design. • Use 100-Ω impedance traces. Generally these are very loosely coupled to ease routing length differences. • Place AC-coupling capacitors near to the receiver end of each channel segment to minimize reflections. • The maximum body size for AC-coupling capacitors is 0402. • Back-drill connector vias and signal vias to minimize stub length. • Use Reference plane vias to ensure a low inductance path for the return current. 8.2.2 Detailed Design Procedure The DS100MB203 is designed to be placed at an offset location with respect to the overall channel attenuation. In order to optimize performance, the repeater requires tuning to extend the reach of the cable or trace length while also recovering a solid eye opening. To tune the mux-buffer, the settings mentioned in Table 2 and Table 3 are recommended as a default starting point for most applications. Once these settings are configured, additional tuning of the EQ and, to a lesser extent, VOD may be required to optimize the repeater performance for each specific application environment. Examples of the repeater performance as a generic high-speed datapath repeater are shown in the performance curves in the Application Curves section. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 41 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com Typical Application (continued) 8.2.3 Application Curves Figure 11. TL = 10-inch 5-mil FR4 Trace, 8 Gbps MB203 Settings: EQ[1:0] = 0, F = 02'h, DEM[1:0] = 0, 1 Figure 12. TL = 20-inch 5–mil FR4 Trace, 8 Gbps MB203 Settings: EQ[1:0] = 0, 1 = 03'h, DEM[1:0] = 0, 1 Figure 13. TL = 30-inch 5-mil FR4 Trace, 8 Gbps MB203 Settings: EQ[1:0] = R, 0 = 07'h, DEM[1:0] = 0, 1 Figure 14. TL1 = 20-inch 5–mil FR4 Trace, TL2 = 10-inch 5–mil FR4 trace, 8 Gbps MB203 Settings: EQ[1:0] = R, 1 = 03'h, DEM[1:0] = R, 0 9 Power Supply Recommendations 9.1 Power Supply Bypassing The DS100MB203 has an optional internal voltage regulator to provide the 2.5-V supply to the device. In 3.3-V mode, the VIN pin = 3.3 V is used to supply power to the device and the VDD pins should be left open. The internal regulator will provide the 2.5 V to the VDD pins of the device and a 0.1-μF capacitor is needed at each of the five VDD pins for power supply de-coupling (total capacitance should be ≤ 0.5 μF), and the VDD pins should be left open. The VDD_SEL pin must be tied to GND to enable the internal regulator. In 2.5-V mode, the VIN pin should be left open and 2.5-V supply must be applied to the VDD pins. The VDD_SEL pin must be left open (no connect) to disable the internal regulator. The DS100MB203 can be configured for 2.5-V operation or 3.3-V operation. The lists below outline required connections for each supply selection. 42 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 Power Supply Bypassing (continued) For 3.3-V mode of operation, use the following steps: 1. Tie VDD_SEL = 0 with 1-kΩ resistor to GND. 2. Feed 3.3-V supply into VIN pin. Local 1.0-μF decoupling at VIN is recommended. 3. See information on VDD bypass below. 4. SDA and SCL pins should connect pullup resistor to VIN 5. Any 4-Level input which requires a connection to Logic 1 should use a 1-kΩ resistor to VIN For 2.5-V mode of operation, use the following steps: 1. VDD_SEL = Float 2. VIN = Float 3. Feed 2.5-V supply into VDD pins. 4. See information on VDD bypass below. 5. SDA and SCL pins connect pullup resistor to VDD for 2.5-V uC SMBus IO 6. SDA and SCL pins connect pullup resistor to VDD for 3.3-V uC SMBus IO 7. Any 4-Level input which requires a connection to Logic 1 should use a 1-kΩ resistor to VDD 3.3 V mode 2.5 V mode VDD_SEL Enable VDD_SEL open VIN open Disable 3.3 V Capacitors can be either tantalum or an ultra-low ESR ceramic. Internal voltage regulator 2.5 V 0.1 µF 0.1 µF VDD VDD 0.1 µF 0.1 µF 1 µF VDD VDD 10 µF 2.5 V 1 µF VIN 10 µF Internal voltage regulator Capacitors can be either tantalum or an ultra-low ESR ceramic. VDD VDD 0.1 µF 0.1 µF VDD VDD 0.1 µF 0.1 µF VDD VDD 0.1 µF 0.1 µF Place 0.1 µF close to VDD Pin Total capacitance should be 7 0.5 µF Place capacitors close to VDD Pin Figure 15. 3.3-V or 2.5-V Supply Connection Diagram Two approaches are recommended to ensure that the DS100MB203 is provided with an adequate power supply bypass. First, the supply ( VDD) and ground (GND) pins should be connected to power planes routed on adjacent layers of the printed-circuit-board. Second, pay careful attention to supply bypassing through the proper use of bypass capacitors is required. A 0.1-μF bypass capacitor should be connected to each VDD pin such that the capacitor is placed as close as possible to the device. Small body size capacitors (such as 0402) reduce the parasitic inductance of the capacitor and also help in placement close to the VDD pin. If possible, the layer thickness of the dielectric should be minimized so that the VDD and GND planes create a low inductance supply with distributed capacitance. Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 43 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 10 Layout 10.1 Layout Guidelines The differential inputs and outputs are designed with 100-Ω differential terminations. Therefore, they should be connected to interconnects with controlled differential impedance of approximately 85-110 Ω. It is preferable to route differential lines primarily on one layer of the board, particularly for the input traces. The use of vias should be avoided if possible. If vias must be used, they should be used sparingly and must be placed symmetrically for each side of a given differential pair. Whenever differential vias are used, the layout must also provide for a low inductance path for the return currents as well. Route the differential signals away from other signals and noise sources on the printed-circuit-board. To minimize the effects of crosstalk, a 5:1 ratio or greater should be maintained between inter-pair spacing and trace width. See AN-1187 Leadless Leadframe Package (LLP) Application Report (SNOA401) for additional information on QFN (WQFN) packages. The DS100MB203 pinout promotes easy high-speed routing and layout. To optimize DS100MB203 performance refer to the following guidelines: 1. Place local VIN and VDD capacitors as close as possible to the device supply pins. Often the best location is directly under the DS100MB203 pins to reduce the inductance path to the capacitor. In addition, bypass capacitors may share a via with the DAP GND to minimize ground loop inductance. 2. Differential pairs going into or out of the DS100MB203 should have adequate pair-to-pair spacing to minimize crosstalk. 3. Use return current via connections to link reference planes locally. This ensures a low inductance return current path when the differential signal changes layers. 4. Optimize the via structure to minimize trace impedance mismatch. 5. Place GND vias around the DAP perimeter to ensure optimal electrical and thermal performance. 6. Use small body size AC coupling capacitors when possible—0402 or smaller size is preferred. The ACcoupling capacitors should be placed closer to the Rx on the channel. Figure 16 depicts different transmission line topologies which can be used in various combinations to achieve the optimal system performance. Impedance discontinuities at the differential via can be minimized or eliminated by increasing the swell around each hole and providing for a low inductance return current path. When the via structure is associated with thick backplane PCB, further optimization such as back drilling is often used to reduce the detrimental high-frequency effects of stubs on the signal path. 44 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 DS100MB203 www.ti.com SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 10.2 Layout Example 20 mils EXTERNAL MICROSTRIP 100 mils 20 mils INTERNAL STRIPLINE VDD VDD 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 19 54 20 53 21 52 51 22 BOTTOM OF PKG 23 VDD 50 GND 24 49 25 48 26 47 46 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 VDD VDD Figure 16. Typical Routing Options Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 45 DS100MB203 SNLS396D – JANUARY 2012 – REVISED JANUARY 2016 www.ti.com 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation For related documentation, see the following: • Absolute Maximum Ratings for Soldering (SNOA549) • Understanding EEPROM Programming for High Speed Repeaters and Mux Buffers (SNLA228) • AN-1187 Leadless Leadframe Package (LLP) Application Report (SNOA401) 11.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.4 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 11.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 46 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Product Folder Links: DS100MB203 PACKAGE OPTION ADDENDUM www.ti.com 20-Jan-2016 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) DS100MB203SQ/NOPB ACTIVE WQFN NJY 54 2000 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR -40 to 85 DS100MB203 DS100MB203SQE/NOPB ACTIVE WQFN NJY 54 250 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR -40 to 85 DS100MB203 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 20-Jan-2016 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 20-Jan-2016 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DS100MB203SQ/NOPB WQFN NJY 54 2000 330.0 16.4 5.8 10.3 1.0 12.0 16.0 Q1 DS100MB203SQE/NOPB WQFN NJY 54 250 178.0 16.4 5.8 10.3 1.0 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 20-Jan-2016 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DS100MB203SQ/NOPB WQFN NJY 54 2000 367.0 367.0 38.0 DS100MB203SQE/NOPB WQFN NJY 54 250 213.0 191.0 55.0 Pack Materials-Page 2 PACKAGE OUTLINE NJY0054A WQFN SCALE 2.000 WQFN 5.6 5.4 B A PIN 1 INDEX AREA 0.5 0.3 0.3 0.2 10.1 9.9 DETAIL OPTIONAL TERMINAL TYPICAL 0.8 MAX C SEATING PLANE 2X 4 SEE TERMINAL DETAIL 3.51±0.1 19 (0.1) 27 28 18 50X 0.5 7.5±0.1 2X 8.5 1 45 54 PIN 1 ID (OPTIONAL) 46 54X 54X 0.5 0.3 0.3 0.2 0.1 0.05 C A C B 4214993/A 07/2013 NOTES: 1. All linear dimensions are in millimeters. Dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance. www.ti.com EXAMPLE BOARD LAYOUT NJY0054A WQFN WQFN (3.51) SYMM 54X (0.6) 54 54X (0.25) SEE DETAILS 46 1 45 50X (0.5) (7.5) SYMM (9.8) (1.17) TYP 2X (1.16) 28 18 ( 0.2) TYP VIA 19 27 (1) TYP (5.3) LAND PATTERN EXAMPLE SCALE:8X 0.07 MIN ALL AROUND 0.07 MAX ALL AROUND METAL SOLDER MASK OPENING SOLDER MASK OPENING NON SOLDER MASK DEFINED (PREFERRED) METAL SOLDER MASK DEFINED SOLDER MASK DETAILS 4214993/A 07/2013 NOTES: (continued) 4. This package is designed to be soldered to a thermal pad on the board. For more information, refer to QFN/SON PCB application note in literature No. SLUA271 (www.ti.com/lit/slua271). www.ti.com EXAMPLE STENCIL DESIGN NJY0054A WQFN WQFN SYMM METAL TYP (0.855) TYP 46 54 54X (0.6) 54X (0.25) 1 45 50X (0.5) (1.17) TYP SYMM (9.8) 12X (0.97) 18 28 19 27 12X (1.51) (5.3) SOLDERPASTE EXAMPLE BASED ON 0.125mm THICK STENCIL EXPOSED PAD 67% PRINTED SOLDER COVERAGE BY AREA SCALE:10X 4214993/A 07/2013 NOTES: (continued) 5. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. www.ti.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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