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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Renesas 5P49V5927B000NLGI

Name: 5P49V5927B000NLGI
Brand: Renesas
SKU: 5P49V5927B000NLGI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5P49V5927B000NLGI

Manufacturer:: Renesas

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 24-VFQFN Exposed Pad

Datasheet:: 5P49V5927B000NLGI.pdf

Description:: IC CLOCK GENERATOR 24VFQFPN

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Product details

Overview

5P49V5927B000NLGI from Renesas Electronics (formerly IDT) is a fifth-generation programmable clock generator with three independent fractional output dividers, <0.7 ps RMS typical phase jitter, 1–200 MHz LVCMOS output range, and redundant glitchless manual switchover between crystal (8–40 MHz) and differential (1–200 MHz) reference inputs. It serves as a system-level timing hub in PCIe 3.0, Ethernet switch/router, and FPGA clocking applications.

For engineers reviewing the 5P49V5927B000NLGI datasheet, 5P49V5927B000NLGI pinout, 5P49V5927B000NLGI application, or 5P49V5927B000NLGI equivalent, key selection criteria include its OTP-configurable multi-mode operation (four bank storage), per-output voltage selection (1.8/2.5/3.3 V), independent spread spectrum on each output pair, programmable crystal load capacitance (9–25 pF), and I2C address flexibility (0xD0/0xD4).

Technical Context

The 5P49V5927B000NLGI implements a high-performance fractional-N PLL architecture with three independent FODs supporting any-frequency synthesis (<50 ppb accuracy) and triangle-wave spread spectrum modulation (±0.25% to ±2.5% center spread). Its dual-reference architecture enables seamless manual switchover between XIN/REF (LVCMOS, 1–200 MHz) and CLKIN/CLKINB (LVDS/LVPECL/HCSL, 1–200 MHz) without output glitches.

Configuration is supported via on-chip four-bank OTP memory or real-time I2C interface (two selectable slave addresses), with hardware select pins (SEL0/SEL1) enabling up to four boot-time configurations for regional standards, power states, or margin testing. Output alignment is maintained across configuration changes using POR-triggered synchronization resets.

Key Specifications

Parameter	Value and Actual Design Meaning
Output count	Seven LVCMOS outputs (OUT0–OUT6), grouped into four frequency domains: OUT0 alone; OUT1/OUT2; OUT3/OUT4; OUT5/OUT6
Phase jitter (RMS)	<0.7 ps typical - ensures low BER in high-speed serial links like PCIe 3.0 and 10GbE
Reference input range	Crystal: 8–40 MHz; LVCMOS: 1–200 MHz; Differential (LVDS/LVPECL/HCSL): 1–200 MHz - supports flexible clock sourcing
Output frequency range	1–200 MHz LVCMOS - covers CPU, DDR, PCIe, Ethernet, and video timing requirements
Output voltage control	Per-output-pair VDDO supply (VDDO0–VDDO3) sets 1.8 V / 2.5 V / 3.3 V logic levels - enables mixed-voltage system interfacing
Spread spectrum	Independent on each output pair, ±0.25% to ±2.5% center spread - reduces EMI without requiring board-level filtering
Crystal tuning range	9–25 pF internal load capacitance (6-bit XTAL[5:0], 0.5 pF/step) - accommodates wide range of fundamental-mode quartz crystals

Pinout & Package

Package: 24-pin VFQFPN (4 mm × 4 mm, 0.5 mm pitch), exposed thermal pad (ePAD), industrial temperature range (–40°C to +85°C).

Pin/Terminal	Circuit Role	Design Meaning
CLKIN / CLKINB	Differential reference input pair	Accepts LVDS/LVPECL/HCSL; internal 100 kΩ pull-downs enable single-ended use; supports 1–200 MHz
XIN/REF / XOUT	Crystal oscillator interface or single-ended reference input	XIN accepts ≤1.2 V swing; crystal mode requires 8–40 MHz fundamental-mode quartz; internal tunable capacitance (9–25 pF)
CLKSEL	Manual switchover control	Selects active reference source (XIN/REF or CLKIN/CLKINB); polarity programmable via I2C register 0x13
SD/OE	Global shutdown or output enable	Configurable via SH/SP bits: SD mode drives outputs low and shuts down PLL; OE mode supports tri-state or level-driven disable
SEL0/SCL / SEL1/SDA	Hardware configuration select or I2C interface	Mode selected by OUT0_SEL_I2CB latched at power-up; supports four OTP configurations or I2C programming
VDDO0–VDDO3	Output power supplies	Set LVCMOS output voltage per pair: OUT0 (VDDO0); OUT1/OUT2 (VDDO1); OUT3/OUT4 (VDDO2); OUT5/OUT6 (VDDO3)
OUT0–OUT6	LVCMOS clock outputs	OUT1/OUT2, OUT3/OUT4, OUT5/OUT6 share frequencies; OUT0 is independent; all support programmable skew and phase alignment

Key Features

Feature	Design Value
Four-bank OTP memory	Stores up to four complete configurations for boot-time selection via SEL0/SEL1 - eliminates need for external EEPROM or firmware initialization
Independent spread spectrum per output pair	Reduces EMI across multiple clock domains simultaneously without cross-coupling - critical for dense PCB layouts in networking gear
Programmable crystal load capacitance	9–25 pF tuning range (0.5 pF steps) compensates for PCB stray capacitance and vendor-specific crystal specs - improves first-pass timing accuracy
Glitchless manual switchover	Zero-cycle interruption during CLKSEL-driven reference switching - maintains system stability when primary clock fails
Per-output-pair voltage selection	1.8 V / 2.5 V / 3.3 V LVCMOS levels set independently via VDDO0–VDDO3 - simplifies mixed-voltage SoC/FPGA interface design

Applications

PCIe 3.0 Clocking	Ethernet Switch Timing
Use Scenario: Providing synchronized 100 MHz REFCLK and 125 MHz PHY clocks to multiple PCIe 3.0 endpoints and Ethernet MACs on a 1U switch blade. IC Role / Device Role / Timing Role: System clock generator delivering low-jitter, phase-aligned clocks with independent spread spectrum to meet PCIe 3.0 jitter compliance and FCC Class A EMI limits. Use Value: Eliminates need for discrete oscillators and fanout buffers; reduces BOM count by 4+ components while maintaining <1.0 ps RMS total jitter budget.	Use Scenario: Generating 25 MHz, 125 MHz, and 156.25 MHz clocks for 1 GbE/10 GbE PHYs, packet processors, and SerDes interfaces in carrier-grade access switches. IC Role / Device Role / Timing Role: Multi-frequency timing hub with redundant reference inputs (crystal + differential) ensuring uptime during clock source failure. Use Value: Manual switchover preserves link integrity during reference loss; per-output spread spectrum lowers radiated emissions without compromising signal integrity.
FPGA Reference Clocking	Broadcast Video Synchronization
Use Scenario: Supplying 50 MHz, 100 MHz, and 200 MHz clocks to FPGA fabric, transceivers, and DDR3/4 memory controllers in broadcast infrastructure equipment. IC Role / Device Role / Timing Role: Programmable clock source enabling dynamic reconfiguration of clock frequencies and phases via I2C during FPGA partial reconfiguration cycles. Use Value: Four OTP banks allow pre-stored timing profiles for different video formats (HD/4K/UHD); alignment reset ensures deterministic inter-clock skew after mode change.	Use Scenario: Distributing genlock-capable 27 MHz, 74.25 MHz, and 148.5 MHz clocks across SDI transmitter/receiver modules in video production switchers. IC Role / Device Role / Timing Role: Low-phase-noise generator with programmable skew enabling precise rising/falling edge alignment between video pixel clocks and ancillary data streams. Use Value: Sub-degree skew resolution (≤0.4° @ 100 MHz) meets SMPTE ST 2082-1 timing tolerance; fractional dividers eliminate frame-sync drift over long durations.

PCIe 3.0 Clocking

Ethernet Switch Timing

Use Scenario: Providing synchronized 100 MHz REFCLK and 125 MHz PHY clocks to multiple PCIe 3.0 endpoints and Ethernet MACs on a 1U switch blade.

IC Role / Device Role / Timing Role: System clock generator delivering low-jitter, phase-aligned clocks with independent spread spectrum to meet PCIe 3.0 jitter compliance and FCC Class A EMI limits.

Use Value: Eliminates need for discrete oscillators and fanout buffers; reduces BOM count by 4+ components while maintaining <1.0 ps RMS total jitter budget.

Use Scenario: Generating 25 MHz, 125 MHz, and 156.25 MHz clocks for 1 GbE/10 GbE PHYs, packet processors, and SerDes interfaces in carrier-grade access switches.

IC Role / Device Role / Timing Role: Multi-frequency timing hub with redundant reference inputs (crystal + differential) ensuring uptime during clock source failure.

Use Value: Manual switchover preserves link integrity during reference loss; per-output spread spectrum lowers radiated emissions without compromising signal integrity.

FPGA Reference Clocking

Broadcast Video Synchronization

Use Scenario: Supplying 50 MHz, 100 MHz, and 200 MHz clocks to FPGA fabric, transceivers, and DDR3/4 memory controllers in broadcast infrastructure equipment.

IC Role / Device Role / Timing Role: Programmable clock source enabling dynamic reconfiguration of clock frequencies and phases via I2C during FPGA partial reconfiguration cycles.

Use Value: Four OTP banks allow pre-stored timing profiles for different video formats (HD/4K/UHD); alignment reset ensures deterministic inter-clock skew after mode change.

Use Scenario: Distributing genlock-capable 27 MHz, 74.25 MHz, and 148.5 MHz clocks across SDI transmitter/receiver modules in video production switchers.

IC Role / Device Role / Timing Role: Low-phase-noise generator with programmable skew enabling precise rising/falling edge alignment between video pixel clocks and ancillary data streams.

Use Value: Sub-degree skew resolution (≤0.4° @ 100 MHz) meets SMPTE ST 2082-1 timing tolerance; fractional dividers eliminate frame-sync drift over long durations.

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable clock generator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5351A-B-GM	Three outputs max; no differential inputs; 2.5–200 MHz output range; higher phase jitter (~1.5 ps RMS)	Lacks redundant reference inputs and manual switchover; unsuitable for telecom line cards requiring failover	Lower-cost option for non-redundant consumer applications where <1 ps jitter is not required
ICS843002AGILF	Eight LVDS outputs; fixed 2.5 V core; no OTP; only I2C configuration; no spread spectrum	Designed for high-speed serial links (SATA, SAS); lacks crystal interface and voltage-flexible outputs	Better fit for backplane timing with strict LVDS drive requirements but no system-level clock tree flexibility

Compared with Si5351A-B-GM and ICS843002AGILF, the 5P49V5927B000NLGI uniquely combines OTP-based multi-mode boot selection, differential + crystal reference redundancy, per-output voltage control, and independent spread spectrum - making it optimal for industrial and telecom systems demanding robustness, configurability, and EMI control.

Availability

5P49V5927B000NLGI is available at Aetrix Electronics and suitable for PCIe 3.0 clocking, Ethernet switch/router timing, and FPGA reference clocking requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 5P49V5927B000NLGI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation acquired Integrated Device Technology (IDT) in 2019 and continues development of the VersaClock® family of programmable timing solutions.

The 5P49V5927B000NLGI belongs to the VersaClock 5 product line, designed specifically for high-performance, multi-protocol timing in computing, networking, and industrial systems requiring flexible frequency synthesis, low jitter, and field-programmable configuration.

FAQ

What is the maximum crystal frequency supported by the 5P49V5927B000NLGI?

The 5P49V5927B000NLGI supports crystal frequencies from 8 MHz to 40 MHz, limited to fundamental-mode quartz crystals. Overtone crystals are not supported. The device provides programmable internal load capacitance (9–25 pF) to match manufacturer-specified crystal load values and compensate for PCB stray capacitance.

Does the 5P49V5927B000NLGI support both LVDS and LVCMOS outputs?

No, the 5P49V5927B000NLGI provides seven LVCMOS outputs only (OUT0–OUT6). It accepts LVDS/LVPECL/HCSL differential inputs on CLKIN/CLKINB but does not generate differential outputs. Output voltage levels (1.8 V / 2.5 V / 3.3 V) are set per output pair via dedicated VDDO pins (VDDO0–VDDO3).

How many independent frequency domains does the 5P49V5927B000NLGI support?

The 5P49V5927B000NLGI supports four independent frequency domains: OUT0 (single output); OUT1/OUT2 (shared frequency); OUT3/OUT4 (shared frequency); and OUT5/OUT6 (shared frequency). Each domain uses a dedicated fractional output divider (FOD), enabling simultaneous generation of up to four distinct frequencies.

Can the 5P49V5927B000NLGI be configured without an I2C host controller?

Yes. The 5P49V5927B000NLGI can operate entirely from factory- or user-programmed OTP memory. Four configurations may be stored and selected at power-up using SEL0/SEL1 pins. I2C is optional for runtime reprogramming or initial OTP programming; no external controller is needed for basic boot-time operation.

What is the purpose of the OUT0_SEL_I2CB pin on the 5P49V5927B000NLGI?

The OUT0_SEL_I2CB pin determines interface mode at power-up: a weak pull-up configures pins 8 (SEL1/SDA) and 9 (SEL0/SCL) as hardware select inputs; a weak pull-down or floating state configures them as I2C SDA/SCL. After power-up, OUT0_SEL_I2CB becomes an LVCMOS reference output, providing a buffered copy of OUT0.

5P49V5927B000NLGI Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: VersaClock® 5

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Type:: -

PLL:: Yes

Input:: HCSL, LVCMOS, LVDS, LVPECL, Crystal

Output:: LVCMOS

Number of Circuits:: 1

Ratio - Input:Output:: 2:3

Differential - Input:Output:: Yes/No

Frequency - Max:: 200MHz

Divider/Multiplier:: Yes/No

Voltage - Supply:: 1.71V ~ 3.465V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 24-QFN (4x4)

5P49V5927B000NLGI FAQ

1.How can I place an order for 5P49V5927B000NLGI through Aetrix?

Please submit a Request for Quotation (RFQ) for 5P49V5927B000NLGI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 5P49V5927B000NLGI reliable?

The price and inventory of 5P49V5927B000NLGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5P49V5927B000NLGI is usually 5 days.

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Once your 5P49V5927B000NLGI order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 5P49V5927B000NLGI?

For technical support, including 5P49V5927B000NLGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5P49V5927B000NLGI requirements.

6.How does Aetrix verify that 5P49V5927B000NLGI is sourced from the original manufacturer or authorized distributors?

All 5P49V5927B000NLGI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 5P49V5927B000NLGI meets industry standards.

7.What is the process for return or replacement of 5P49V5927B000NLGI?

All 5P49V5927B000NLGI units undergo pre-shipment inspection (PSI). If there is an issue with 5P49V5927B000NLGI, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 5P49V5927B000NLGI part is unused and in its original packaging.

Return procedure for 5P49V5927B000NLGI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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