ADN2913ACPZ

Continuous Rate 6.5 Mbps to 8.5 Gbps Clock and Data Recovery IC with Integrated Limiting Amp/EQ ADN2913 Data Sheet FEATURES GENERAL DESCRIPTION Serial data input: 6.5 Mbps to 8.5 Gbps No reference clock required Exceeds SONET/SDH requirements for jitter transfer/ generation/tolerance Quantizer sensitivity: 6.3 mV typical (limiting amplifier mode) Optional limiting amplifier, equalizer (EQ), and 0 dB EQ inputs Programmable jitter transfer bandwidth to support G.8251 OTN Programmable slice level Sample phase adjust (5.65 Gbps or greater) Output polarity invert Programmable LOS threshold via I2C I2C interface to access optional features Loss of signal (LOS) alarm (limiting amplifier mode only) Loss of lock (LOL) indicator PRBS generator/detector Application aware power 352 mW at 8.5 Gbps, equalizer mode, no clock output 380 mW at 6.144 Gbps, limiting amplifier mode, no clock output 340 mW at 622 Mbps, 0 dB EQ mode, no clock output Power supplies: 1.2 V, flexible 1.8 V to 3.3 V, and 3.3 V 4 mm × 4 mm, 24-lead LFCSP The ADN2913 provides the receiver functions of quantization, signal level detection, and clock and data recovery for continuous data rates from 6.5 Mbps to 8.5 Gbps. The ADN2913 automatically locks to all data rates without the need for an external reference clock or programming. ADN2913 jitter performance exceeds all jitter specifications required by SONET/SDH, including jitter transfer, jitter generation, and jitter tolerance. The ADN2913 provides manual or automatic slice adjust and manual sample phase adjusts. Additionally, the user can select a limiting amplifier, equalizer, or 0 dB EQ at the input. The equalizer is adaptive or it can be manually set. The receiver front-end loss of signal (LOS) detector circuit indicates when the input signal level falls below a userprogrammable threshold. The LOS detection circuit has hysteresis to prevent chatter at the LOS output. In addition, the input signal strength can be read through the I2C registers. The ADN2913 also supports pseudorandom binary sequence (PRBS) generation, bit error detection, and input data rate readback features. The ADN2913 is available in a compact 4 mm × 4 mm, 24-lead lead frame chip scale package (LFCSP). All ADN2913 specifications are defined over the ambient temperature range of −40°C to +85°C, unless otherwise noted. APPLICATIONS SONET/SDH OC-1/OC-3/OC-12/OC-48 and all associated FEC rates 1GE, 1GFC, 2GFC, 4GFC, 8GFC, CPRI OS/L.6 up to OS/L.60 Any rate regenerators/repeaters FUNCTIONAL BLOCK DIAGRAM SCK SDA LOL I2C REGISTERS FREQUENCY ACQUISITION AND LOCK DETECTOR LOS THRESH SLICE ADJUST I2C_ADDR REFCLKP/ REFCLKN (OPTIONAL) TXD FIFO SAMPLE PHASE ADJUST DATA INPUT SAMPLER 2 0dB EQ 50Ω 50Ω I2C VCM CML DDR ÷N DOWNSAMPLER AND LOOP FILTER LA NIN CML CLK LOS DETECT PIN CLKOUTP/ CLKOUTN DATA RATE ADN2913 LOS DATOUTP/ DATOUTN ÷2 DCO RXD RXCK EQ CLOCK I2C PHASE SHIFTER 11777-001 VCC FLOAT Figure 1. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2013–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADN2913 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Limiting Amplifier ..................................................................... 22 Applications ....................................................................................... 1 Slice Adjust .................................................................................. 22 General Description ......................................................................... 1 Edge Select................................................................................... 22 Functional Block Diagram .............................................................. 1 Loss of Signal (LOS) Detector .................................................. 23 Revision History ............................................................................... 2 Passive Equalizer ........................................................................ 24 Specifications..................................................................................... 3 0 dB EQ ........................................................................................ 24 Jitter Specifications ....................................................................... 5 Lock Detector Operation .......................................................... 26 Output and Timing Specifications ............................................. 6 Harmonic Detector .................................................................... 26 Timing Diagrams.......................................................................... 8 Output Disable and Squelch ..................................................... 27 Absolute Maximum Ratings ............................................................ 9 I2C Interface ................................................................................ 27 Thermal Characteristics .............................................................. 9 Reference Clock (Optional) ...................................................... 27 ESD Caution .................................................................................. 9 Additional Features Available via the I2C Interface ............... 29 Pin Configuration and Function Descriptions ........................... 10 Input Configurations ................................................................. 31 Typical Performance Characteristics ........................................... 11 Applications Information .............................................................. 34 I C Interface Timing and Internal Register Descriptions ......... 13 Transmission Lines..................................................................... 34 Register Map ............................................................................... 14 Soldering Guidelines for Lead Frame Chip Scale Package ... 34 Theory of Operation ...................................................................... 20 Outline Dimensions ....................................................................... 35 Functional Description .................................................................. 22 Ordering Guide .......................................................................... 35 2 Frequency Acquisition ............................................................... 22 REVISION HISTORY 8/2017—Rev. A to Rev. B Changed CP-24-14 to CP-24-7 .................................... Throughout Updated Outline Dimensions ....................................................... 34 Changes to Ordering Guide .......................................................... 34 2/2016—Rev. 0 to Rev. A Changes to Figure 5 ........................................................................ 10 Changes to Table 7 .......................................................................... 15 Updated Outline Dimensions ....................................................... 33 Changes to Ordering Guide .......................................................... 33 12/2013—Revision 0: Initial Version Rev. B | Page 2 of 35 Data Sheet ADN2913 SPECIFICATIONS TA = TMIN to TMAX, VCC = VCCMIN to VCCMAX, VCC1 = VCC1MIN to VCC1MAX, VDD = VDDMIN to VDDMAX, VEE = 0 V, input data pattern: PRBS 223 − 1, ac-coupled, I2C register default settings, unless otherwise noted. Table 1. Parameter DATA RATE SUPPORT RANGE INPUT—DC CHARACTERISTICS Peak-to-Peak Differential Input1 Input Resistance 0 dB EQ PATH—CML INPUT Input Voltage Range Input Common-Mode Level Differential Input Sensitivity OC-48 8GFC2 LIMITING AMPLIFIER INPUT PATH Differential Input Sensitivity OC-48 8GFC2 EQUALIZER INPUT PATH Differential Input Sensitivity 8GFC2 INPUT—AC CHARACTERISTICS S11 LOSS OF SIGNAL (LOS) DETECT Loss of Signal Detect Test Conditions/Comments PIN − NIN Differential At PIN or NIN, dc-coupled, RX_TERM_FLOAT = 1 (float) DC-coupled (see Figure 33), 600 mV p-p differential, RX_TERM_FLOAT = 1 (float) DCO Frequency Error for LOL Deassert LOL Assert Response Time ACQUISITION TIME Lock to Data (LTD) Mode Optional LTR Mode4 DATA RATE READBACK ACCURACY Coarse Readback Fine Readback Typ Max 8.5 Unit Gbps 95 100 1.0 105 V Ω 0.5 VCC V 0.65 VCC − 0.15 V 22 200 mV p-p mV p-p BER = 1 × 10−10 6.3 mV p-p JTSPAT, BER = 1 × 10−12 8.3 mV p-p 15 inch FR-4, 100 Ω differential transmission line, adaptive equalizer (EQ) on JTSPAT, BER = 1 × 10−12 115 mV p-p At 7.5 GHz, differential return loss, see Figure 14 −12 dB 10 5 128 5.7 135 110 mV p-p mV p-p mV p-p dB μs μs 1000 ppm 250 10 51 25 ppm ms μs μs 24 0.5 0.5 6.0 ms ms ms ms ±5 % ppm Jitter tolerance scrambled pattern (JTSPAT), ac-coupled, RX_TERM_FLOAT = 0 (VCM = 1.2 V), BER = 1 × 10−12 Loss of signal minimum program value Loss of signal maximum program value Hysteresis (Electrical) LOS Assert Time LOS Deassert Time LOSS OF LOCK (LOL) DETECT DCO Frequency Error for LOL Assert Min 0.0065 AC-coupled3 AC-coupled3 With respect to nominal, data collected in lock to reference (LTR) mode With respect to nominal, data collected in LTR mode 10.0 Mbps 2.5 Gbps 8.5 Gbps, JTSPAT 10.0 Mbps 2.5 Gbps 8.5 Gbps, JTSPAT In addition to reference clock accuracy Rev. B | Page 3 of 35 ±100 ADN2913 Parameter POWER SUPPLY VOLTAGE VCC VDD VCC1 POWER SUPPLY CURRENT VCC VDD VCC1 TOTAL POWER DISSIPATION Clock Output Enabled Clock Output Disabled Data Sheet Test Conditions/Comments Min Typ Max Unit 1.14 2.97 1.62 1.2 3.3 1.8 1.26 3.63 3.63 V V V Limiting amplifier mode, clock output enabled 1.25 Gbps 3.125 Gbps 4.25 Gbps 6.144 Gbps 8GFC,2 JTSPAT 1.25 Gbps 3.125 Gbps 4.25 Gbps 6.144 Gbps 8GFC,2 JTSPAT 1.25 Gbps 3.125 Gbps 4.25 Gbps 6.144 Gbps 8GFC,2 JTSPAT 277.1 256.2 270.1 303.1 319.1 7.24 7.21 7.23 7.26 7.20 35.6 19.0 22.2 19.4 22.2 311.0 288.3 304.0 340.4 359.5 8.28 8.21 8.33 8.17 8.1 46.8 24.1 28.2 24.6 28.4 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA Limiting amplifier mode, 1.25 Gbps Limiting amplifier mode, 3.125 Gbps Limiting amplifier mode, 4.25 Gbps Limiting amplifier mode, 6.144 Gbps Limiting amplifier mode, 8GFC,2 JTSPAT Equalizer mode, 8.5 Gbps Limiting amplifier mode, 6.144 Gbps 0 dB EQ mode, 622 Mbps 420.4 365.5 388 422.5 446.6 352 380 340 +85 mW mW mW mW mW mW mW mW °C OPERATING TEMPERATURE RANGE −40 See Figure 34. Fibre Channel Physical Interface-4 standard, FC-PI-4, Rev 8.00, May 21, 2008. 3 When ac-coupled, the LOS assert and deassert times are dominated by the RC time constant of the ac coupling capacitor and the 100 Ω differential input termination of the ADN2913 input stage. 4 This typical acquisition specification applies to all selectable reference clock frequencies in the range of 11.05 MHz to 176.8 MHz. 1 2 Rev. B | Page 4 of 35 Data Sheet ADN2913 JITTER SPECIFICATIONS TA = TMIN to TMAX, VCC = VCCMIN to VCCMAX, VCC1 = VCC1MIN to VCC1MAX, VDD = VDDMIN to VDDMAX, VEE = 0 V, input data pattern: PRBS 223 − 1, ac-coupled to 100 Ω differential termination load, I2C register default settings, unless otherwise noted. Table 2. Parameter PHASE-LOCKED LOOP CHARACTERISTICS Jitter Transfer Bandwidth (BW) 1 8GFC 2 OC-48 OC-12 OC-3 Jitter Peaking 8GFC2 OC-48 OC-12 OC-3 Jitter Generation 8GFC2 OC-48 OC-12 OC-3 Jitter Tolerance 8GFC,2 JTSPAT Sinusoidal Jitter at 340 kHz Sinusoidal Jitter at 5.098 MHz Sinusoidal Jitter at 80 MHz Rx Jitter Tracking Test 3 510 kHz, 1 UI 100 kHz, 5 UI OC-48 OC-12 Test Conditions/Comments Min Typ Max Unit 1242 663 157 175 44 1676 896 181 kHz kHz kHz kHz kHz 20 kHz to 80 MHz 20 kHz to 10 MHz 0.004 0.004 0.01 0.01 0.021 0.023 dB dB dB dB Unfiltered Unfiltered 12 kHz to 20 MHz Unfiltered 12 kHz to 20 MHz Unfiltered 12 kHz to 5 MHz Unfiltered 12 kHz to 5 MHz Unfiltered 12 kHz to 1.3 MHz Unfiltered 12 kHz to 1.3 MHz Unfiltered TRANBW[2:0] = 4 (default) 0.005 0.044 0.0025 TRANBW[2:0] = 4 (default) OTN mode, TRANBW[2:0] = 1 0.0046 0.0156 0.0276 0.0007 0.0011 0.0038 0.0076 0.0002 0.0003 0.0008 0.0018 UI rms UI p-p UI rms UI rms UI p-p UI p-p UI rms UI rms UI p-p UI p-p UI rms UI rms UI p-p UI p-p 6.7 0.53 0.59 UI p-p UI p-p UI p-p