Name: 5P49V5923 - VersaClock 5 Low Power Programmable Clock Generator
Brand: Renesas Electronics Corporation
SKU: 5P49V5923 - VersaClock 5 Low Power Programmable Clock Generator
Availability: OutOfStock

Features

3 LVCMOS outputs, including 1 reference output
In-system programmable with 2 independent output frequencies
Up to 200 MHz input/output frequencies
Also supports crystal input
Stores 4 different configurations in OTP non-volatile memory
< 100 mW core power (at 3.3V)
< 0.7 ps RMS phase jitter (typ)
Meets PCIe® Gen1/2/3, USB 3.0, 1/10 GbE clock requirements
1.8 / 2.5 / 3.3V core and output voltages
4x4 mm 24-ld VFQFPN
-40° to +85°C operating temperature range
Supported by Timing Commander™ software tool

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Description

The 5P49V5923 is low-power programmable clock generator with best-in-class jitter performance and design flexibility with LVCMOS outputs capable of generating any output frequency. The 5P49V5923 is intended for high performance consumer, networking, industrial, computing, and data-communications applications. Configurations may be stored in on-chip One-Time Programmable (OTP) memory or changed using I²C interface. This is Renesas' fifth generation of programmable clock technology (VersaClock^® 5). The frequencies are generated from a single reference clock or crystal input. A glitchless manual switchover function allows one of the redundant clock inputs to be selected during normal operation.

Two select pins allow up to 4 different configurations to be programmed and accessible using processor GPIOs or bootstrapping. The different selections may be used for different operating modes (full function, partial function, partial power-down), regional standards (US, Japan, Europe) or system production margin testing. The device may be configured to use one of two I²C addresses to allow multiple devices to be used in a system.

This device is factory-configurable. Try the Custom Part Configuration Utility.

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This video provides an overview of the VersaClock 5 programmable clock generator family, including the 5P49V5901, 5P49V5913, 5P49V5914, 5P49V5923, 5P49V5925, 5P49V5927, 5P49V5929.

The VersaClock 5 family is an in-system programmable clock generator featuring up to four universal output pairs capable of producing independent frequencies up to 350 MHz configurable as HCSL, LVPECL, LVDS, or dual LVCMOS outputs. The highly integrated device consolidates four differential or eight single-ended clock generators and can store up to four different configuration settings, helping to minimize board space and bill-of-materials. Upon request, devices may be factory-programmed to the customer’s desired configuration.

Presented by Baljit Chandhoke, product line manager at IDT. Visit the Programmable Clocks page for more information.

VersaClock® 5 is a low-power programmable clock generator with best-in-class jitter performance with less than 0.7psec RMS phase jitter from 12KHz to 20MHz. The highly integrated device consolidates four differential or eight single-ended clock generators and can store up to four different configuration settings, helping to minimize board space and bill-of-materials. The high-performance clock generator operates at less than 100mW core power (50 percent lower than competing devices), helping to ease system thermal constraints and reduce operating power expenses.

VersaClock 5 can take a crystal or a clock input. It has 4 fractional output dividers which allow the programming of 4 independent frequencies up to 350MHz. The four universal output pairs are independently configurable as HCSL, LVPECL, LVDS, or dual LVCMOS outputs. It also features a reference clock output. The fractional output dividers driving each output pair are easily programmed via I2C while the device is operating in the system, lending itself to system tuning and margin testing. Unlimited in-system reprogramming is possible via I2C, whereas four banks of one-time programmable non-volatile memory provide flexibility for multi-project inventory consolidation or design changes in field or production units. Upon request, devices may be factory-programmed to the customer's desired configuration.

Presented by Baljit Chandhoke, Product Marketing Manager at Integrated Device Technology, Inc.

This is a video introduction and demonstration of the VersaClock 5 Evaluation Board. This device uses Renesas's Timing Commander™ software platform, allowing engineers to configure and program their devices with an intuitive, time-saving graphical user interface (GUI).

The 5P49V5901 is an in-system programmable clock generator featuring four universal output pairs capable of producing independent frequencies up to 350 MHz in various output types. With RMS phase jitter less than 0.7 picoseconds over the full 12 kHz to 20 MHz integration range, the new device meets the stringent jitter requirements of PCI Express® Gen 1/2/3, USB 3.0, and 1G/10G Ethernet. The high-performance clock generator operates at less than 100 mW core power (50 percent lower than competing devices), helping to ease system thermal constraints, reduce operating power expenses, and maximize battery life.

The 5P49V5901's four universal output pairs are each independently configurable as HCSL, LVPECL, LVDS, or dual LVCMOS outputs. The fractional output dividers driving each output pair are easily programmed via I2C while the device is operating in the system, lending itself to system tuning and margin testing. Unlimited in-system reprogramming is possible via I2C, whereas four banks of one-time programmable non-volatile memory provide flexibility for multi-project inventory consolidation or design changes in field or production units. Upon request, devices may be factory-programmed to the customer's desired configuration.

Presented by Shudong Zheng, Sr. Design Engineer at IDT. For more information about Renesas's VersaClock 5, visit our VersaClock5 page.

Description

IDT's innovative support tool, Timing Commander™, expedites development cycles by empowering customers to program sophisticated timing devices with an intuitive and flexible Graphical User Interface. IDT's Timing Commander is a Windows™-based platform designed to serve user-friendly configuration interfaces, known as personalities, for various IDT products and product families. With a few simple clicks, the user is presented with a comprehensive, interactive block diagram offering the ability to modify desired input values, output values, and other configuration settings. The software automatically makes calculations, reports status monitors, and prepares register settings without the need to reference a datasheet. The tool also automatically loads the configuration settings over USB to an IDT evaluation board for immediate application in the circuit. Once the device has been configured and tuned for optimal system performance, the configuration file can be saved for factory-level programming before shipment. For more information about Timing Commander, visit our Timing Commander page .

IDT's innovative support tool, Timing Commander™, expedites development cycles by empowering customers to program sophisticated timing devices with an intuitive and flexible Graphical User Interface. IDT's Timing Commander is a Windows™-based platform designed to serve user-friendly configuration interfaces, known as personalities, for various IDT products and product families. With a few simple clicks, the user is presented with a comprehensive, interactive block diagram offering the ability to modify desired input values, output values, and other configuration settings. The software automatically makes calculations, reports status monitors, and prepares register settings without the need to reference a datasheet. The tool also automatically loads the configuration settings over USB to an IDT evaluation board for immediate application in the circuit. Once the device has been configured and tuned for optimal system performance, the configuration file can be saved for factory-level programming prior to shipment. Presented by Steven Gutierrez, Senior Product Application Engineer at IDT.

Resources

Timing Commander

IDT provides a brief tutorial on the timing solutions required for NXP (Freescale) QorIQ / Layerscape processor-based systems.

Presented by Ron Wade, PCI Express timing expert. For more information about IDT's timing solutions, visit www.IDT.com/go/clocks.

TRANSCRIPT

Hi there, this is Ron Wade with IDT and today we're going to talk about NXP, formerly known as Freescale, CPUs. Specifically the QorIQ and Layerscape CPUs and the timing requirements that they have. So, it's basically divided into a couple of parts here. There's some timing that the CPU itself requires and then there's timing that depends upon your system and the number of SerDes links you have in your design and in your CPU. So, if we talk about the CPU part itself, we have the CPU cores which get a clock, and we have the memory controller inside the CPUs which gets a clock as well. And the memory controller clock is called the DDR clock. The CPU clock is called the SYS_CCB clock in the Freescale nomenclature, excuse me, the NXP nomenclature and those frequencies - they're single-ended clocks and they range, like the DDR from 66.66 MHz up to 100 MHz, and the CPU clocks range from 66.66 up to 133.33 MHz, in some cases. Those are single-ended LVCMOS input clocks. Additionally, some of the CPUs have a USB interface which may require a 24 MHz single-ended clock. And there's also an Ethernet interface built in, a one-gigabit Ethernet interface, that is, takes a 125 MHz single-ended clock as well and that's at 2.5 volts.

So, in the Layerscape series of CPUs which are based on the ARM core, Freescale has put into them, what they call a reduced oscillator mode where all the clocks over here basically are reduced by a single differential 100 MHz non-spreading clock, and this saves you from having to figure out and generate all these clocks. However, it has to be non-spread because the USB clock is also derived from it, so, if you're planning to use spread spectrum, you really can't use this mode. And, currently, it's only available in the Layerscape devices, not the legacy QorIQ devices.

So, that's the basics for the CPU and the memory controller. Then the SerDes is really dependent upon the particular CPU you're using and how many SerDes lanes you need in your design. So, the SerDes clocks, on the other hand, basically range from 125 MHz differential clock for Gigabit Ethernet, if you're using 10 Gigabit Ethernet, a 156.25 MHz clock is required. And then if you're using PCI Express, you'd use a standard 100 MHz PCI Express clock. All these happen to be differential and the number of SerDes lanes and their capabilities depends on the CPU you're using. So, this gives you an outline of how to just do a quick tally of what kind of clocks you need and in another video, I'll talk about the solutions that IDT has for NXP's devices.

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5P49V5923

VersaClock 5 Low Power Programmable Clock Generator

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