TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 11.3-Gbps Cable and PC Board Equalizer FEATURES APPLICATIONS • • • 1 • • • • • • • • Multi-Rate Operation up to 11.3Gbps Compensates for up to 30dB Loss on the Receive Side and up to 7dB Loss on the Transmit Side at 5.65GHz Input Offset Cancellation Output Disable/Squelch Function Loss Of Signal Detection Adjustable Output Swing Adjustable Output De-Emphasis Two-Wire Serial Interface Single 3.3V Supply Surface Mount Small Footprint 4-mm × 4-mm 20-Pin QFN Package • • High-Speed Links In Communication And Data Systems SFP+ and XFP Active Cables Backplane, Daughtercard, and Cable Interconnects for 10GE, 8GFC, 10GFC, 10G SONET, SAS, SATA 100 Ω Differential 100Ω differential PCB interconnect Interconnect Up to 11.3Gbps Differential Input Data Input AC Coupling Up to 20-meter 20 -meter100Ω 100 Ω Cable or Equivalent Backplane Link TLK1101E Input AC Coupling Output AC Coupling TLK1101E Output AC Coupling Up to 11.3Gbps Differential Output Data 100 Ω Differential 100Ω differential interconnect PCB Interconnect DESCRIPTION The TLK1101E is a versatile and flexible high-speed equalizer for applications in digital high-speed links with data rates up to 11.3Gbps. The TLK1101E can be configured in many ways to optimize its performance. It provides output de-emphasis adjustable from 0dB to 7dB using pins DE0 and DE1. The output differential voltage swing can be set to 300mVp-p, 600mVp-p, or 900mVp-p using the SWG pin. A controlling voltage on pin VTH can be used to adjust the input threshold voltage. Pins LN0 and LN1 can be used to optimize the device performance for various interconnect lengths, e.g. from 0 to 20 meters of 24-AWG twinaxial cable. The LOS (loss of signal) assert level can be set to a desired level through a controlling voltage connected to pin LOSL. The LOS assert levels can be chosen from two LOS assert level ranges selectable with the LOSR pin. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2007, Texas Instruments Incorporated TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 The output can be disabled using the DIS pin. The DIS and the LOS pin can be connected together to implement a squelch function. The de-emphasis, the output voltage swing, the input threshold voltage, the output disable, and the LOS assert levels and ranges can alternatively be set using the two-wire serial interface through the SCL and SDA pins. The external pin configuration is the default device setup method. The active device control method is selected through register address 0 bit 0 (see Table 4 and Table 20). The two-wire serial interface also allows for the control of the input bandwidth to optimize the device performance for various data rates. The high input signal dynamic range ensures low jitter output signals even when overdriven with input signal swings as high as 1600mVp-p differential. The low-frequency cut-off is low enough to support low-frequency control signals such as SAS and SATA out-of-band (OOB) signals. BLOCK DIAGRAM A simplified block diagram of the TLK1101E is shown in Figure 1. This compact, low power, 11.3-Gbps equalizer consists of a high-speed data path with offset cancellation block combined with an analog input threshold selection circuitry, a loss of signal detection block, a two-wire interface with a control-logic block, a bandgap voltage reference, and a bias current generation block. VCC GND Offset Cancellation VCC 50W 50W Input Buffer with Selectable Bandwidth Output Buffer Output Driver Equalizer Stage DIN+ VCC 50W DOUT+ DOUT- DIN- LOS Loss of Signal Detection SDA 50W SDA 8-Bit Register Control Settings Input Threshold 4-Bit De-emphasis 2-Bit Output Swing 4-Bit + Select Input Bandwidth 8-Bit Register SCL SCL DIS DIS LN0 LN 0 LN1 LN1 LOSR LOSR LOSL LOSL SWG SWG VTH VTH DE0 DE 0 DE1 DE 1 7-Bit + Select 4-Bit 7-Bit Register LOS Assert Level SEL_RATE SEL_LOSL Band-Gap Voltage Reference and Bias Current Generation Power-On Reset 2-Wire Interface & Control Logic Figure 1. Simplified Block Diagram of the TLK1101E 2 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 PACKAGE For the TLK1101E a small footprint 4-mm × 4-mm 20-pin QFN package is used, with a lead pitch of 0.5mm. The pin-out is shown in Figure 2. 19 18 17 16 LN1 DE1 20 LN0 DE0 SWG RGP PACKAGE (TOP VIEW) GND 1 15 DIN+ 14 DOUT+ 2 DIN– 3 VCC 13 DOUT– TLK1101E 12 VCC GND 4 EP 6 7 8 9 10 VTH SDA SCL DIS LOS LOSL 5 11 LOSR Figure 2. Pin-Out of the TLK1101E in a 4-mm × 4-mm 20-Pin QFN Package TERMINAL FUNCTIONS PIN SYMBOL 1, 4 GND supply Circuit ground. 2 DIN+ analog-in Non-inverted data input. On-chip 50Ω terminated to VCC. 3 DIN– analog-in Inverted data input. On-chip 50Ω terminated to VCC. 5 LOSL analog-in LOS threshold control. A controlling voltage on this pin adjusts the LOS assert and de-assert levels. 6 VTH analog-in Input signal threshold control. A controlling voltage of 0V to 1V on this pin adjusts the input signal threshold. Leave open for the default 0V differential threshold. 7 SDA digital-in/out Bidirectional serial data pin for the SDA/SCL interface. Open drain. Always connect to a pull-up resistor. 8 SCL digital-in Serial clock pin for the SDA/SCL interface. Always connect to a pull-up resistor. 9 DIS digital-in Disables CML output stage when set to high level. Internally pulled down. 10 LOS digital-out High level indicates that the input signal amplitude is below the programmed threshold level. Open drain. Requires an external 10kΩ pull-up resistor to VCC for proper operation. 11 LOSR digital-in LOS range select. Set to high level or leave open for upper range, or set to low level for lower range. 12, 15 TYPE DESCRIPTION VCC supply 3.3V ± 10% supply voltage. 13 DOUT– CML-out Inverted data output. On-chip 50Ω back-terminated to VCC. 14 DOUT+ CML-out Non-inverted data output. On-chip 50Ω back-terminated to VCC. 16 SWG three-state Output voltage swing control. Set to high level for high swing, set to low level for low swing, or leave open for medium swing. 17 LN1 digital-in Interconnect length select. Supports two logic levels: high and low. (see Table 2) 18 LN0 digital-in 19 DE1 three-state 20 DE0 three-state EP EP Output signal de-emphasis control. Supports three logic levels: high, low, and open. (see Table 1) Exposed die pad (EP) must be grounded. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 3 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) VALUE UNIT –0.3 to 4.0 V 0.5 to 4.0 V –0.3 to 4.0 V ±2.5 V VCC Supply voltage (2) VDIN+, VDIN– Voltage at DIN+, DIN– VDIS, VLOSL, VLOSR, VTH, VDE0, VDE1, VLN0, VLN1, VSWG, VSCL, VSDA Voltage at DIS, LOSL, LOSR, VTH, DE0, DE1, LN0, LN1, SWG, SCL, SDA (2) VDIN,DIFF Differential voltage between DIN+ and DIN– IDIN+, IDIN–, IDOUT+, IDOUT– Continuous current at inputs and outputs –25 to 25 mA ESD ESD Rating at all pins 2.5 kV (HBM) TJ,max Maximum junction temperature 125 °C (1) (2) (2) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. RECOMMENDED OPERATING CONDITIONS MIN NOM MAX VCC Supply voltage 2.95 3.3 3.6 UNIT V TA Operating lead temperature –40 100 °C VIH CMOS Input high voltage 2.0 VIL CMOS Input low voltage V 0.8 V DC ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER VCC TEST CONDITIONS MIN TYP MAX 2.95 3.3 3.6 SWG = Open (CML output current included) 76 110 SWG = High (CML output current included) 83 120 Supply voltage ICC Supply current LOS High voltage ISOURCE = 50µA; 10kΩ Pull-up to VCC on LOS pin LOS Low voltage ISINK = 10mA; 10kΩ Pull-up to VCC on LOS pin 2.4 UNIT V mA V 0.4 V AC ELECTRICAL CHARACTERISTICS Typical operating condition is at VCC = 3.3V and TA = 25°C. Over recommended operating conditions (unless otherwise noted) PARAMETER VIN,MIN VIN,MAX VOD (1) 4 TEST CONDITIONS Low frequency –3dB bandwidth With 0.1µF input AC-coupling capacitors Data input sensitivity (1) BER < 10–12 , K28.5 Pattern at 11.3Gbps over a 15-m 24-AWG cable including two SMA connectors, SWG = Open, No de-emphasis, Maximum interconnect length setting. Voltage measured at the input of the cable Data input overload BER < 10–12 , K28.5 Pattern at 11.3Gbps, K28.5 pattern at 11.3Gbps over a 15-m 24-AWG cable including two SMA connectors, SWG = Open, No de-emphasis, Maximum interconnect length setting. Voltage measured at the input of the cable High frequency boost f = 5.65GHz Differential data output voltage swing MIN TYP MAX UNIT 30 50 kHz 250 mVp-p 1600 mVp-p 20 24 DIS = Low, SWG = Low, VIN = 400mVp-p, No de-emphasis, No interconnect line dB 225 300 450 DIS = Low, SWG = Open, VIN = 400mVp-p, No de-emphasis, No interconnect line 450 600 800 DIS = Low, SWG = High, VIN = 400mVp-p, No de-emphasis, No interconnect line 600 900 1200 mVp-p The given differential input signal swing is valid for the low-frequency components of the input signal. The high frequency components may be attenuated by up to 24dB at 5.65GHz. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 AC ELECTRICAL CHARACTERISTICS (continued) Typical operating condition is at VCC = 3.3V and TA = 25°C. Over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX VCC–0.113 VCC–0.075 VCC–0.056 DIS = Low, SWG = Open, VIN = 400mVp-p, No de-emphasis, No interconnect line VCC–0.2 VCC–0.15 VCC–0.113 DIS = Low, SWG = High, VIN = 400mVp-p, No de-emphasis, No interconnect line VCC–0.3 VCC–0.225 VCC–0.15 1.5 5 DIS = Low, SWG = Low, VIN = 400mVp-p, No de-emphasis, No interconnect line VCM,OUT VRIP Data output common-mode voltage Differential output ripple Output de-emphasis (2) DE DJ Deterministic jitter RJ Random jitter DIS = High, 50% Transitions of K28.5 pattern at 11.3Gbps, No interconnect line, VIN = 1600mVp-p K28.5 Pattern at 11.3Gbps, No interconnect line, VIN = 400mVp-p, SWG = Open, Output de-emphasis off: DE0 = Low, DE1 = Low 0 K28.5 Pattern at 11.3Gbps, No interconnect line, VIN = 400mVp-p, SWG = Open, Maximum output de-emphasis: DE0 = High, DE1 = High 7 K28.5 Pattern at 11.3Gbps, 10-m 28-AWG Cable, VIN = 400mVp-p, SWG = Open, No de-emphasis, Maximum interconnect length setting 12 K28.5 Pattern at 11.3Gbps, 15-m 24-AWG Cable, VIN = 400mVp-p, SWG = Open, No de-emphasis, Maximum interconnect length setting 12 K28.5 Pattern at 11.3Gbps, 10-m 28-AWG Cable, VIN = 400mVp-p, SWG = Open, No de-emphasis, Maximum interconnect length setting 1.0 K28.5 Pattern at 11.3Gbps, 15-m 24-AWG Cable, VIN = 400mVp-p, SWG = Open, No de-emphasis, Maximum interconnect length setting 1.0 psRMS 20% to 80%, No interconnect line, VIN = 400mVp-p, SWG = Open, No de-emphasis 20 28 tF Output fall time 20% to 80%, No interconnect line, VIN = 400mVp-p, SWG = Open, No de-emphasis 20 28 SDD11 Differential input return loss SDD22 Differential output return loss SCD11 Input differential to common-mode conversion SCC22 Common-mode output return loss VDAS LOS De-assert threshold voltage LOS Hysteresis TAS/DAS LOS Assert/de-assert time TDIS Disable response time Latency (2) (3) ps 0.01GHz < f < 3.9GHz 16 3.9GHz < f < 12.1GHz See 0.01GHz < f < 3.9GHz dB (3) 16 3.9GHz < f < 12.1GHz See dB (3) 0.01GHz < f < 7.5GHz 25 7.5GHz < f < 12.1GHz 20 0.01GHz < f < 2.5GHz 13 2.5GHz < f < 12.1GHz 7 K28.5 Pattern at 11.3Gbps, No interconnect, LOSR = High, LOSL = Open 25 60 K28.5 Pattern at 11.3Gbps, No interconnect, LOSR = High, LOSL = 1.0V 75 180 dB dB mVp-p K28.5 Pattern at 11.3Gbps, No interconnect, LOSR = High, LOSL = Open 100 150 K28.5 Pattern at 11.3Gbps, No interconnect, LOSR = High, LOSL = 1.0V 300 450 20log(VDAS / VAS) mVp-p 2.5 4.5 2.5 From DIN+/DIN– to DOUT+/DOUT– mVRMS psp-p Output rise time LOS Assert threshold voltage V dB tR VAS UNIT dB 50 µs 20 ns 150 ps See Table 1 and Figure 3 for output de-emphasis settings Differential Return Loss given by SDD11, SDD22 = 19.3 + 26.66 log10(f/8.25), f in GHz Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 5 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 1. Available Output De-emphasis Settings DE0 DE1 LOW OPEN HIGH LOW 0dB 0.875dB 1.75dB OPEN 2.625dB 3.5dB 4.375dB HIGH 5.25dB 6.125dB 7dB A VL, p–p t 0 t VH, p–p é æ VL, p-p öù ÷ú DE = 20 × êlogç êë çè VH, p-p ÷øúû –A T0157-01 Figure 3. Output De-emphasis Table 2. Available Interconnect Length Settings (24-AWG Twinaxial Cable Used as Reference) LN0 LN1 6 LOW HIGH LOW 0–5 meters 10–15 meters HIGH 5–10 meters 15–20 meters Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TWO-WIRE SERIAL INTERFACE AND CONTROL LOGIC FUNCTIONAL DESCRIPTION The TLK1101E uses a two-wire serial interface for digital control. The two circuit inputs, SDA and SCL, are driven, respectively, by the serial data and serial clock from a microcontroller, for example. Both inputs include 100kΩ pull-up resistors to VCC. For driving these inputs, an open-drain output is recommended. The two-wire interface allows write access to the internal memory map to modify control registers and read access to read out control and status signals. The TLK1101E is a slave device only which means that it cannot initiate a transmission itself; it always relies on the availability of the SCL signal for the duration of the transmission. The master device provides the clock signal as well as the START and STOP commands. The protocol for a data transmission is as follows: 1. START command 2. 7-bit slave address (0101000) followed by an eighth bit which is the data direction bit (R/W). A zero indicates a WRITE and a 1 indicates a READ. 3. 8-bit register address 4. 8-bit register data 5. STOP command Regarding timing, the TLK1101E is I2C-compatible. The typical timing is shown in Figure 4 and a complete data transfer is shown in Figure 5. Parameters for Figure 4 are defined in Table 3. Bus Idle: Both SDA and SCL lines remain HIGH Start Data Transfer: A change in the state of the SDA line, from HIGH to LOW, while the SCL line is HIGH, defines a START condition (S). Each data transfer is initiated with a START condition. Stop Data Transfer: A change in the state of the SDA line from LOW to HIGH while the SCL line is HIGH defines a STOP condition (P). Each data transfer is terminated with a STOP condition; however, if the master still wishes to communicate on the bus, it can generate a repeated START condition and address another slave without first generating a STOP condition. Data Transfer: The number of data bytes transferred between a START and a STOP condition is not limited and is determined by the master device. The receiver acknowledges the transfer of data. Acknowledge: Each receiving device, when addressed, is obliged to generate an acknowledge bit. The transmitter releases the SDA line and a device that acknowledges must pull down the SDA line during the acknowledge clock pulse in such a way that the SDA line is stable LOW during the HIGH period of the acknowledge clock pulse. Setup and hold times must be taken into account. When a slave-receiver does not acknowledge the slave address, the data line must be left HIGH by the slave. The master can then generate a STOP condition to abort the transfer. If the slave-receiver does acknowledge the slave address but some time later in the transfer cannot receive any more data bytes, the master must abort the transfer. This is indicated by the slave generating the not acknowledge on the first byte to follow. The slave leaves the data line HIGH and the master generates the STOP condition. SDA tBUF tLOW tr tHIGH tf tHDSTA SCL P S S tHDSTA tHDDAT tSUDAT P tSUSTA tSUSTO Figure 4. Two-Wire Serial Interface Timing Diagram. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 7 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 3. Two-Wire Serial Interface Timing Diagram Definitions SYMBOL PARAMETER MIN MAX UNIT fSCL SCL Clock frequency tBUF Bus free time between START and STOP conditions 1.3 400 kHz µs tHDSTA Hold time after repeated START condition. After this period, the first clock pulse is generated 0.6 µs tLOW Low period of the SCL clock 1.3 µs tHIGH High period of the SCL clock 0.6 µs tSUSTA Setup time for a repeated START condition 0.6 µs tHDDAT Data HOLD time 0 µs tSUDAT Data setup time tR Rise time of both SDA and SCL signals 300 ns tF Fall time of both SDA and SCL signals 300 ns tSUSTO Setup time for STOP condition 100 ns µs 0.6 SDA SCL 1-7 S SLAVE ADDRESS 8 R/W 9 ACK 1-7 8 REGISTER ADDRESS 9 ACK 8 1-7 REGISTER FUNCTION 9 ACK P Figure 5. Two-Wire Serial Interface Data Transfer 8 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 REGISTER MAPPING The register mapping for read/write register addresses 0 (0x00) through 13 (0x0D) are shown in Table 4 through Table 17. The register mapping for the read only register addresses 14 (0x0E) and 15 (0x0F) are shown in Table 18 and Table 19. Table 20 describes the circuit functionality based on the register settings. Table 4. Register 0 (0x00) Mapping – Control Settings register address 0 (0x00) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 REG11OFF REG3OFF REG2OFF REG1OFF DISABLE LOS_RNG OCOFF I2CMODE Table 5. Register 1 (0x01) Mapping – Input Threshold Adjust register address 1 (0x01) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 THRESH7 THRESH6 THRESH5 THRESH4 THRESH3 THRESH2 THRESH1 THRESH0 Table 6. Register 2 (0x02) Mapping – De-emphasis Setting register address 2 (0x02) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – DEEM3 DEEM2 DEEM1 DEEM0 Table 7. Register 3 (0x03) Mapping – Output Swing Control register address3 (0x03) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – AMP1 AMP0 Table 8. Register 4 (0x04) Mapping register address 4 (0x04) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 9. Register 5 (0x05) Mapping register address 5 (0x05) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 10. Register 6 (0x06) Mapping register address 6 (0x06) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 11. Register 7 (0x07) Mapping – Maximum Data Rate Setting register address 7 (0x07) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 RATE_7 – – – RATE_3 RATE_2 RATE_1 RATE_0 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 9 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 12. Register 8 (0x08) Mapping register address 8 (0x08) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 13. Register 9 (0x09) Mapping register address 9 (0x09) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 14. Register 10 (0x0A) Mapping register address 10 (0x0A) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 15. Register 11 (0x0B) Mapping – LOS Level Setting register address 11 (0x0B) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 LOSLVL_7 LOSLVL_6 LOSLVL_5 LOSLVL_4 LOSLVL_3 LOSLVL_2 LOSLVL_1 LOSLVL_0 Table 16. Register 12 (0x0C) Mapping register address 12 (0x0C) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 17. Register 13 (0x0D) Mapping register address 13 (0x0D) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – – – – – Table 18. Register 14 (0x0E) Mapping – Selected Rate Setting (Read Only) register address 14 (0x0E) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – – – – SEL_RATE3 SEL_RATE2 SEL_RATE1 SEL_RATE0 Table 19. Register 15 (0x0F) Mapping – Selected LOS Level (Read Only) register address 15 (0x0F) 10 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 – SEL_LOSL6 SEL_LOSL5 SEL_LOSL4 SEL_LOSL3 SEL_LOSL2 SEL_LOSL1 SEL_LOSL1 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 20. Register Functionality NAME REGISTER DESCRIPTION FUNCTION REG11OFF Address 0 bit 7: Register address 11 control Register address 11 control bit: 1 = External LOS level (LOSL) control active 0 = Register address 11 settings active (default) REG3OFF Address 0 bit 6: Register address 3 control Register address 3 control bit: 1 = External output swing (SWG) control active 0 = Register address 3 settings active (default) REG2OFF Address 0 bit 5: Register address 2 control Register address 2 control bit: 1 = External output de-emphasis (DE) control active 0 = Register address 2 settings active (default) REG1OFF Address 0 bit 4: Register address 1 control Register address 1 control bit: 1 = External input threshold (VTH) control active 0 = Register address 1 settings active (default) DISABLE Address 0 bit 3: Output disable Output disable bit: 1 = Output disabled 0 = Output enabled (default) LOS_RNG Address 0 bit 2: LOS Range LOS Range bit: 1 = High LOS assert voltage range 0 = Low LOS assert voltage range (default) OCOFF Address 0 bit 1: Offset cancellation disable Offset cancellation disable bit: 1 = Offset cancellation is disabled 0 = Offset cancellation is enabled (default) I2CMODE Address 0 bit 0: Two-wire interface disable Two-wire interface disable bit: 1 = Register settings active 0 = External control active (default) THRESH7 Address 1 bit 7: Input threshold adjust bit 7 (MSB) THRESH6 Address 1 bit 6: Input threshold adjust bit 6 THRESH5 Address 1 bit 5: Input threshold adjust bit 5 Input threshold adjustment setting: Maximum positive shift for 00000001 (1) Minimum positive shift for 01111111 (127) Zero shift for 10000000 (128) or 00000000 (0) (default) Minimum negative shift for 10000001 (129) Maximum negative shift for 11111111 (255) THRESH4 Address 1 bit 4: Input threshold adjust bit 4 THRESH3 Address 1 bit 3: Input threshold adjust bit 3 THRESH2 Address 1 bit 2: Input threshold adjust bit 2 THRESH1 Address 1 bit 1: Input threshold adjust bit 1 THRESH0 Address 1 bit 0: Input threshold adjust bit 0 (LSB) DEEM3 Address 2 bit 3: De-emphasis adjust bit 3 (MSB) DEEM2 De-emphasis (dB) Register Setting 0 0000 (default) 0.875 0001 Address 2 bit 1: 1.75 0011 De-emphasis adjust bit 1 2.625 0100 3.5 0101 4.375 0111 5.25 1100 6.125 1101 7 1111 Address 2 bit 2: De-emphasis adjust bit 2 DEEM1 DEEM0 De-emphasis setting: Address 2 bit 0: De-emphasis adjust bit 0 (LSB) Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 11 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 20. Register Functionality (continued) NAME REGISTER DESCRIPTION FUNCTION AMP1 Address 3 bit 1: Output swing control bit 1 (MSB) AMP0 Address 3 bit 0: Output swing control bit 0 (LSB) RATE_7 Address 7 bit 7: Bandwidth selection bit 7 (MSB) RATE_3 Address 7 bit 3: Bandwidth selection bit 3 RATE_2 Address 7 bit 2: Bandwidth selection bit 2 RATE_1 Address 7 bit 1: Bandwidth selection bit 1 RATE_0 Address 7 bit 0: Bandwidth selection bit 0 (LSB) LOSLVL_7 Address 11 bit 7: LOS assert level bit 7 (MSB) LOSLVL_6 Address 11 bit 6: LOS assert level selection bit 6 LOSLVL_5 Address 11 bit 5: LOS assert level selection bit 5 LOSLVL_4 Address 11 bit 4: LOS assert level selection bit 4 LOSLVL_3 Address 11 bit 3: LOS assert level selection bit 3 LOSLVL_2 Address 11 bit 2: LOS assert level selection bit 2 LOSLVL_1 Address 11 bit 1: LOS assert level selection bit 1 LOSLVL_0 Address 11 bit 0: LOS assert level selection bit 0 (LSB) SEL_RATE3 Address 14 bit 3: Selected rate setting bit 3 SEL_RATE2 Address 14 bit 2: Selected rate setting bit 2 SEL_RATE1 Address 14 bit 1: Selected rate setting bit 1 SEL_RATE0 Address 14 bit 0: Selected rate setting bit 0 12 Output swing control: 00 = 300mVp-p 01 = 600mVp-p (default) 10 = 600mVp-p 11 = 900mVp-p Input filter bandwidth selection control bit: 1 = Contents of register address 7 bits 3 to 0 are used to select the input filter bandwidth 0 = Bandwidth of 9.1GHz is used (default) Input filter bandwidth selection bits: Register 7 bits 3 to 0 are used to set the input filter bandwidth: 0000 = Maximum bandwidth 1111 = Minimum bandwidth LOS Assert level control bit: 1 = Contents of register address 11 bits 6 to 0 are used to select the LOS assert level 0 = LOS Assert level of 50mVp-p is used (default) LOS Assert level selection bits: Register 11 bits 6 to 0 are used to select the LOS assert level: 0000000 = Minimum LOS assert level 1111111 = Maximum LOS assert level Selected rate setting (read only) Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Table 20. Register Functionality (continued) NAME REGISTER DESCRIPTION FUNCTION SEL_LOSL6 Address 15 bit 6: Selected LOS assert level bit 6 (MSB) SEL_LOSL5 Address 15 bit 5: Selected LOS assert level bit 5 SEL_LOSL4 Address 15 bit 4: Selected LOS assert level bit 4 SEL_LOSL3 Address 15 bit 3: Selected LOS assert level bit 3 SEL_LOSL2 Address 15 bit 2: Selected LOS assert level bit 2 SEL_LOSL1 Address 15 bit 1: Selected LOS assert level bit 1 SEL_LOS_0 Address 15 bit 0: Selected LOS assert level bit 0 (LSB) Selected LOS assert level (read only) Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 13 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS Typical operating condition is at VCC = 3.3V and TA = 25°C, VIN = 400mVp-p, DE0 = DE1 = low, SWG = open, LN0 = LN1 = high, and no interconnect line at the output (unless otherwise noted). Differential S-parameter characteristics of Spectra-Strip SkewClear EXD twinaxial cables and a 36-inch FR-4 stripline used for the measurements captured in this document are as shown in Figure 6. 0 Differential S-Parameter Magnitude (dB) -10 -20 -30 -40 -50 Insertion Loss - 15m 24AWG Cable -60 Insertion Loss - 10m 28AWG Cable Insertion Loss - 36in 12mil Stripline -70 Return Loss - 15m 24AWG Cable Return Loss - 10m 28AWG Cable -80 Return Loss - 36in 12mil Stripline -90 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Frequency (GHz) Figure 6. Typical Differential S-Parameter Characteristics of Interconnect Lines 14 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) DIFFERENTIAL EQUALIZER INPUT SIGNAL (TOP) AND OUTPUT SIGNAL (BOTTOM) AT 11.3Gbps USING A K28.5 PATTERN 12-mil Stripline 36-inch 12-mil Stripline Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 100mV/Div Input Voltage 100mV/Div 36-inch Time − 40ps/Div Time − 500ps/Div 10-meter 28-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div Input Voltage 50mV/Div 10-meter 28-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div 15-meter 24-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div Input Voltage 50mV/Div 15-meter 24-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div G002 Figure 7. Equalizer Input and Output Signals with Different Interconnect Lines at 11.3Gbps Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 15 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) DIFFERENTIAL EQUALIZER INPUT SIGNAL (TOP) AND OUTPUT SIGNAL (BOTTOM) AT 10.3125Gbps USING A K28.5 PATTERN 12-mil Stripline 36-inch 12-mil Stripline Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 100mV/Div Input Voltage 100mV/Div 36-inch Time − 40ps/Div Time − 500ps/Div 10-meter 28-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div Input Voltage 50mV/Div 10-meter 28-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div 15-meter 24-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div Input Voltage 50mV/Div 15-meter 24-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div G003 Figure 8. Equalizer Input and Output Signals with Different Interconnect Lines at 10.3125Gbps 16 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) DIFFERENTIAL EQUALIZER INPUT SIGNAL (TOP) AND OUTPUT SIGNAL (BOTTOM) AT 8.5Gbps USING A K28.5 PATTERN 36-inch 12-mil Stripline Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 100mV/Div 12-mil Stripline Input Voltage 100mV/Div 36-inch Time − 40ps/Div Time − 500ps/Div Input Voltage 50mV/Div 10-meter 28-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div 10-meter 28-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div Input Voltage 50mV/Div 15-meter 24-AWG Twinaxial Cable Output Voltage 200mV/Div Output Voltage 200mV/Div Input Voltage 50mV/Div 15-meter 24-AWG Twinaxial Cable Time − 40ps/Div Time − 500ps/Div G004 Figure 9. Equalizer Input and Output Signals with Different Interconnect Lines at 8.5Gbps. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 17 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) RANDOM JITTER vs INPUT VOLTAGE RESIDUAL DETERMINISTIC JITTER vs INPUT VOLTAGE 1.5 20 RJ - Random Jitter - psRMS 1.3 DJ - Residual Deterministic Jitter - ps 36inch x 12mil Stripline 15m 24AWG Twinaxial Cable 1.1 10m 28AWG Twinaxial Cable 0.9 0.7 No interconnect 0.5 0.3 19 No Interconnect 18 36inch x 12mil Stripline 15m 24AWG Twinaxial Cable 17 16 15 14 13 10m 28AWG Twinaxial Cable 12 11 10 0.1 0 18 500 1000 1500 VIN - Input Voltage - mVpp 2000 2500 0 500 1000 1500 VIN - Input Voltage - mVpp 2000 Figure 10. Figure 11. DIFFERENTIAL INPUT RETURN LOSS vs FREQUENCY DIFFERENTIAL OUTPUT RETURN LOSS vs FREQUENCY Figure 12. Figure 13. Submit Documentation Feedback 2500 Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) LOS THRESHOLD VOLTAGE vs LOSL VOLTAGE (LOSR = HIGH) 8 400 350 7 350 Hysteresis 250 5 200 4 150 0.2 0.3 0.4 0.5 0.6 LOSL - Voltage - V 0.7 0.8 0.9 Assert 1 50 1 0 0 0 0 1 0.1 0.2 0.3 0.4 0.5 0.6 LOSL - Voltage - V 0.7 0.8 0.9 1 Figure 14. Figure 15. LOS THRESHOLD VOLTAGE vs REGISTER 11 (0x0B) SETTING (LOSR = LOW) LOS THRESHOLD VOLTAGE vs REGISTER 11 (0x0B) SETTING (LOSR = HIGH) 8 400 8 350 7 350 7 300 6 300 6 Hysteresis 250 5 200 4 150 3 2 100 Assert 50 0 170 1 Deassert 0 180 190 200 210 220 Register 11 (0x0B) Setting 230 240 250 VTH - LOS Threshold Voltage - mVPP 400 Hysteresis - dB VTH - LOS Threshold Voltage - mVPP 0.1 4 200 2 Assert 0 5 100 2 0 Hysteresis 250 3 Deassert 50 6 300 150 3 100 7 Deassert Hysteresis - dB 6 8 250 5 Hysteresis 200 4 150 3 100 2 Deassert 50 Hysteresis - dB 300 VTH - LOS Threshold Voltage - mVPP 400 Hysteresis - dB VTH - LOS Threshold Voltage - mVPP LOS THRESHOLD VOLTAGE vs LOSL VOLTAGE (LOSR = LOW) Assert 1 0 0 120 130 140 150 160 170 180 190 200 210 220 230 240 250 Register 11 (0x0B) Setting Figure 16. Figure 17. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 19 TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 TYPICAL CHARACTERISTICS (continued) LOS THRESHOLD VOLTAGE vs DATA RATE (LOSL = 1V, LOSR = HIGH) 6 400 6 350 5.8 350 5.8 5.6 Hysteresis 250 5.4 200 5.2 150 5 100 Deassert 4.8 Assert 4.6 50 0 0 1 2 3 4 5 6 7 8 9 Data Rate - Gbps 10 11 12 13 4.4 14 300 5.6 Deassert 5.4 250 200 5.2 Assert 150 5 Hysteresis 100 4.8 4.6 50 4.4 0 0 1 2 Figure 18. 20 Hysteresis - dB 300 VTH - LOS Threshold Voltage - mVPP 400 Hysteresis - dB VTH - LOS Threshold Voltage - mVPP LOS THRESHOLD VOLTAGE vs DATA RATE (LOSL = 1V, LOSR = LOW) 3 4 5 6 7 8 9 Data Rate - Gbps 10 11 12 13 14 Figure 19. Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E TLK1101E www.ti.com SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007 Revision History Changes from Original (August 2007) to Revision A ..................................................................................................... Page • • • • • • • • • • Added external pin configuration information - default device setup method to description ................................................. 2 Changed LN0 to LN1 in terminal functions table ................................................................................................................... 3 Changed LN1 to LN0 in terminal functions table ................................................................................................................... 3 Changed DE0 to DE1 in terminal functions table .................................................................................................................. 3 Changed DE1 to DE0 in terminal functions table .................................................................................................................. 3 Deleted fixed input equalizer in high frequency boost test conditions................................................................................... 4 Added Twinaxial to Table 2 title............................................................................................................................................. 6 Changed scale on Figure 7.................................................................................................................................................. 15 Changed scale on Figure 8.................................................................................................................................................. 16 Changed scale on Figure 9.................................................................................................................................................. 17 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): TLK1101E 21 PACKAGE OPTION ADDENDUM www.ti.com 16-Oct-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TLK1101ERGPR ACTIVE QFN RGP 20 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TLK1101ERGPRG4 ACTIVE QFN RGP 20 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TLK1101ERGPT ACTIVE QFN RGP 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TLK1101ERGPTG4 ACTIVE QFN RGP 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Lead/Ball Finish MSL Peak Temp (3) (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. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. 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