Agilent N4880A Reference Clock Multiplier Data Sheet Preliminary Version 0.91 Accurate and simplified receiver test for PCI Express ®, SD UHS-II host and MIPI M-PHY devices: Multiplies 19.2 to 100 MHz reference clocks to an external clock signal for J-BERT or ParBERT pattern generators Transparent to 33 kHz SSC on the reference clock because N4880A uses a multiplying PLL with 2 or 5 MHz loop bandwidth Tolerates small input signals with an input sensitivity of 100 mVpp differential Stand-alone graphical user interface and remote control interface via rear panel USB 2.0 connection Agilent N4880A Specifications Table 1: Specifications for N4880A Reference clock input 50 Ω differential, DC coupled, unused input has to be terminated with 50 Ω Clock input frequency range PCIe™: 100 MHz , UHS-II: 26 to 52 MHz , MIPI M-PHY: 19.2 MHz, 26 MHz, 38.4 MHz, 52 MHz Clock input voltage range 100 mVpp to 2 Vpp differential Clock input transition times < 7.7 ns (20 %/80 %) Loop bandwidth PCIe: typ. 5 MHz , UHS-II: typ.2 MHz , MIPI M-PHY: typ.2 MHz (see also table 2) Clock input duty cycle 45 % to 55 % Max. input voltage level -3.0 V to +3.0 V SSC Reference clock input tolerates up to 3% SSC down-spread modulated with 33 kHz for 26 MHz reference clocks Clock output 50 Ω single ended, DC coupled. Can drive J-BERT or ParBERT 7G/13 G pattern generator modules Clock multiplier factors See table 2 Clock output range 6.240 GHz to 12.480 GHz Clock output voltage Typical 300 to 600 mVpp, not adjustable Output jitter Typical 1.9 ps rms RJ additional intrinsic jitter@ ref clock 2 ns (20 %/80 %) transition time, 100 mVpp Typical 2.1 ps rms RJ additional intrinsic jitter@ ref clock 7.7 ns (20 %/80 %) transition time, 100 mVpp. Output transition time Typical < 25 ps (20% /80%), not adjustable Output duty cycle Typical 50% ± 5%, not adjustable Connectors front panel SMA 3.5 mm, female Connectors rear panel USB, IEC power connector Agilent N4880A Reference Clock Multiplier - Data Sheet Agilent N4880A Specifications 1 Table 2: Multiplier factors for N4880A Digital Bus Standard Reference Clock Input Target Bit Rate N4880A Output Clock* PLL Loop Bandwidth N4880A Multiplier Recommended CLK IN Divider in Pattern Generator to achieve Target Bit Rate(1) PCI Express 3 100 MHz 8 GHz 8 GHz 5 MHz 80 1 PCI Express 2 100 MHz 5 GHz 10 GHz 5 MHz 100 2 PCI Express 1 100 MHz 2.5 GHz 10 GHz 5 MHz 100 4 MIPI M-PHY 19.2 MHz 1.248 GHz 9.984 GHz 2 MHz 520 8 MIPI M-PHY 19.2 MHz 1.4592 GHz 11.6736 GHz 2 MHz 608 8 MIPI M-PHY 19.2 MHz 2.496 GHz 9.984 GHz 2 MHz 520 4 MIPI M-PHY 19.2 MHz 2.9184 GHz 11.6736 GHz 2 MHz 608 4 MIPI M-PHY 19.2 MHz 4.992 GHz 9.984 GHz 2 MHz 520 2 MIPI M-PHY 19.2 MHz 5.8368 GHz 11.6736 GHz 2 MHz 608 2 MIPI M-PHY 26 MHz 1.248 GHz 9.984 GHz 2 MHz 384 8 MIPI M-PHY 26 MHz 1.456 GHz 11.648 GHz 2 MHz 448 8 MIPI M-PHY 26 MHz 2.496 GHz 9.984 GHz 2 MHz 384 4 MIPI M-PHY 26 MHz 2.912 GHz 11.648 GHz 2 MHz 448 4 MIPI M-PHY 26 MHz 4.992 GHz 9.984 GHz 2 MHz 384 2 MIPI M-PHY 26 MHz 5.824GHz 11.648 GHz 2 MHz 448 2 MIPI M-PHY 38.4 MHz 1.248 GHz 9.984 GHz 2 MHz 260 8 MIPI M-PHY 38.4 MHz 1.4592 GHz 11.6736 GHz 2 MHz 304 8 MIPI M-PHY 38.4 MHz 2.496 GHz 9.984 GHz 2 MHz 260 4 MIPI M-PHY 38.4 MHz 2.9184 GHz 11.6736 GHz 2 MHz 304 4 MIPI M-PHY 38.4 MHz 4.992 GHz 9.984 GHz 2 MHz 260 2 MIPI M-PHY 38.4 MHz 5.8368 GHz 11.6736 GHz 2 MHz 304 2 Agilent N4880A Reference Clock Multiplier - Data Sheet 2 Agilent N4880A Specifications Digital Bus Standard Reference Clock Input Target Bit Rate N4880A Output Clock* PLL Loop Bandwidth N4880A Multiplier MIPI M-PHY 52 MHz 1.248 GHz 9.984 GHz 2 MHz 192 8 MIPI M-PHY 52 MHz 1.456 GHz 11.648 GHz 2 MHz 24 8 MIPI M-PHY 52 MHz 2.496 GHz 9.984 GHz 2 MHz 192 4 MIPI M-PHY 52 MHz 2.912 GHz 11.648 GHz 2 MHz 192 4 MIPI M-PHY 52 MHz 5.824 GHz 11.648 GHz 2 MHz 224 2 MIPI M-PHY 52 MHz 5.824 GHz 11.648 GHz 2 MHz 224 2 SD UHS-II (2) 26 MHz to 52 MHz 26 MHz to 52 MHz 0.780 GHz to 1.560 GHz 0.390 GHz to 0.780 GHz 6.24 GHz to 12.48 GHz 6.24 GHz to 12.48 GHz 2 MHz 240 8 2 MHz 240 16 SD UHS-II (2) Recommended CLK IN Divider in Pattern Generator to achieve Target Bit Rate (1) 7G versions of J-BERT N4903B and ParBERT 81250 can be used, even if N4880A output clock rate is higher than 7 GHz. case of a reference clock between 26 MHz and < 28.125 MHz and the need for sinusoidal jitter injection a N4916B-001 clock doubler has to be applied between the reference clock multiplier output and the J-BERT external clock input. In addition, the pattern generator bits need to be doubled (e.g. 01 -> 0011) to compensate for the clock doubling. (1) (2) In Table 3. General characteristics for N4880A Power consumption 100 – 240 V ~50/60 Hz, 80 VA max. Operating temperature 5 °C to 40 °C (–23 °F to 104 °F) Storage temperature -40 °C to 70 °C Operating humidity 95% relative humidity non-condensing Storage humidity 50% relative humidity Physical dimensions (WxHxD) Bench top with bumper and connectors: 228 x 59 x 240 mm (9.0 x 2.3 x 9.74 in) Rackmount without bumper 1/2 x 19” width, 1U height Weight net 1.9 kg (4.2 lb) Weight shipping ~4.5 kg (10 lb) Warranty period 1 year Regulatory standards: Safety IEC61010-1:2001, EN61010-1:2001, CAN/CSA-C22 No. 61010-04, UL 61010-1:2004 EMC Quality management IEC61326-1:1997+A1:1998, EN61326-1:1997+A1:1998 ISO 9004, ISO 14000 Remote control interface: Connectivity Programming language USB 2.0, rear panel Command line programming interface, SCPI extension on J-BERT N4903B SW 7.2 or higher Stand-alone user interface System requirements Graphical, color user interface OS: Microsoft Windows® XP, SP3 (32 bit), or Vista SP2 (32 and 64 bit), or Windows 7 SP1 (32 and 64 bit); Microsoft .NET 2.0 SP2 For using the J-BERT SCPI remote extension N4903B SW 7.2 or higher is needed Agilent N4880A Reference Clock Multiplier - Data Sheet 3 Ordering Information Table 4: Ordering Instructions Reference clock multiplier N4880A Accessories included in N4880A 1 x 50 Ω termination 3.5 mm, USB cable, USB-stick with software and user documentation, functional test report, ROHS addendum Recommended accessories: Four SMA-SMA cables, unmatched (for clock in and out) 15442A SMP-to-SMA cable pair (for PCIe CEM test) N4235-61602 Rack-mount kit E5810A-100 Warranty and services: Warranty and calibration services R1280 Productivity assistance R1380-N49xx Figure 1: Choose settings for the N4880A with the stand-alone graphical user interface. The example shows a setting for a PCI Express 3.0 motherboard test at 8 Gb/s Agilent N4880A Reference Clock Multiplier - Data Sheet 4 Related Literature Title J-BERT N4903B high performance serial BERT Data Sheet Publication Number 5990-3217EN PCI Express 3.0 calibration channels Data Sheet N4916B 4-tap de-emphasis signal converter Data Sheet 5990-7659EN Infiniium 90000 X-series oscilloscopes 16-32 GHz true analogue bandwidth Data Sheet 5990-5271EN Infiniium DSO90000 series high-performance oscilloscopes Data Sheet 5989-7819EN N5990A Test automation software platform Data Sheet 5989-5483EN How to pass receiver test according to PCI Express 3.0 CEM specification Application Note 5990-9208EN Accurate calibration of PCIe 3.0 receiver stress signals (base spec) Application Note 5990-6599EN PCIe 2.0 receiver testing with J-BERT N4903B Application Note 5990-3233EN 5990-4630EN For more information on Agilent Technologies’ products, applications or services, please contact your local Agilent office. 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Germany Ireland Israel Italy Netherlands Spain Sweden United kingdom 32 (0) 2 404 93 40 45 70 13 15 15 358 (0) 10 855 2100 0825 010 700* *0.125 €/minute 49 (0) 7031 464 6333 1890 924 204 972-3-9288-504/544 39 02 92 60 8484 31 (0) 20 547 2111 34 (91) 631 3300 0200-88 22 55 44 (0) 131 452 0200 For the most up-to-date version of this document, please visit our website at www.agilent.com/find/N4880 and go to the Key Library Information area or insert the publication number Product specifications and descriptions in this document subject to change without notice. © Agilent Technologies, Inc. 2011 5990-9592EN Dec 2011