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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Programmable Timers and Oscillators

Renesas 8N4SV76EC-0009CDI8

Name: 8N4SV76EC-0009CDI8
Brand: Renesas
SKU: 8N4SV76EC-0009CDI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 8N4SV76EC-0009CDI8

Manufacturer:: Renesas

Category:: Programmable Timers and Oscillators

Package:: 6-CLCC

Datasheet:: 8N4SV76EC-0009CDI8.pdf

Description:: IC OSC VCXO 148.5MHZ 6-CLCC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

8N4SV76EC-0009CDI8 from Integrated Device Technology is an LVDS frequency-programmable VCXO with factory-set 156.25 MHz output, ±50 ppm total stability (Option E), 0.53 ps RMS phase jitter (12 kHz–20 MHz), 2.5 V or 3.3 V supply, and -40°C to 85°C operation - used for synchronization in 10G/25G Ethernet PHYs and CPRI fronthaul timing.

For engineers reviewing the 8N4SV76EC-0009CDI8 datasheet, 8N4SV76EC-0009CDI8 pinout, 8N4SV76EC-0009CDI8 application, or 8N4SV76EC-0009CDI8 equivalent, key selection criteria include LVDS output compliance, programmable pull range, VCXO control voltage linearity, and RMS phase jitter performance at 156.25 MHz.

Technical Context

The 8N4SV76EC-0009CDI8 integrates a 114.285 MHz third-overtone crystal oscillator driving a fourth-generation FemtoClock® NG PLL with fractional feedback divider (MINT + MFRAC), pre-divider (P), and post-divider (N) to synthesize precise output frequencies. Its architecture supports dual-band operation: 15.476–866.67 MHz and 975–1300 MHz.

It implements LVDS differential outputs (Q/nQ), an LVCMOS/LVTTL-compatible nOE enable input with internal pulldown, and a VC control voltage input with programmable oscillator gain (7.57–477.27 ppm/V) and ±1% linearity (BSL). The device uses a fixed 6-lead ceramic 5 mm × 7 mm × 1.55 mm CD package with GND, VDD, VC, nOE, Q, and nQ terminals.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Frequency	Factory-programmed to 156.25 MHz - matches common Ethernet/SONET/CPRI reference clock requirements.
RMS Phase Jitter	0.53 ps (typical) at 156.25 MHz, 12 kHz–20 MHz integration - meets stringent SerDes jitter budgets.
Frequency Stability	±50 ppm total stability over temperature, aging, and initial accuracy (Option E) - suitable for telecom infrastructure.
Supply Voltage	2.5 V or 3.3 V ±5% - compatible with standard logic rails and low-noise LDOs.
Operating Temp	-40°C to +85°C ambient - qualified for industrial and outdoor wireless base station environments.
Output Interface	LVDS differential pair (Q/nQ) - provides noise-immune, high-speed clock distribution with 247–454 mV differential swing.
Control Input	nOE pin enables/disables outputs (LVCMOS/LVTTL levels); VC pin accepts 0–VDD tuning voltage for ±4.5 to ±754.5 ppm pull range.

Pinout & Package

6-lead ceramic VFQFN package (5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, CD marking). Pin 1 = VC (control voltage), Pin 2 = nOE (output enable, LVCMOS/LVTTL, internal pulldown), Pin 3 = GND, Pins 4–5 = Q/nQ (LVDS differential clock outputs), Pin 6 = VDD (2.5 V or 3.3 V supply).

Pin/Terminal	Circuit Role	Design Meaning
VC (Pin 1)	VCXO tuning voltage input	Accepts 0–VDD analog control; sets output frequency deviation per programmed KV gain (e.g., ±50 ppm at VDD/2).
nOE (Pin 2)	Output enable (active-low)	LVCMOS/LVTTL-compatible; pulls high internally when unconnected; places Q/nQ in high-Z state when asserted.
GND (Pin 3)	Power ground reference	Common return path for VDD, VC, and nOE; requires low-inductance connection to minimize ground bounce and jitter.
Q (Pin 4)	LVDS positive clock output	Differential LVDS signal; 247–454 mV swing, 45–55% duty cycle; requires 100 Ω termination at receiver.
nQ (Pin 5)	LVDS negative clock output	Complementary to Q; forms true differential pair - critical for common-mode noise rejection in high-speed links.
VDD (Pin 6)	Power supply input	Accepts 2.5 V or 3.3 V ±5%; requires local 0.1 µF decoupling adjacent to pin to suppress supply-induced phase noise.

Key Features

Feature	Design Value
FemtoClock® NG PLL architecture	Enables sub-1 ps RMS jitter via high-reference-frequency (114.285 MHz) fractional-N synthesis with delta-sigma noise shaping.
Factory-programmable VCXO parameters	Allows custom APR (±4.5 to ±754.5 ppm) and VC polarity assignment - eliminates field tuning hardware.
LVDS output compliance	Meets ANSI TIA/EIA-644-A spec with guaranteed 247–454 mV differential swing and <500 ps rise/fall time - ensures signal integrity on FR4 PCBs.
Wide frequency coverage	Supports both 15.476–866.67 MHz and 975–1300 MHz bands - accommodates legacy and next-gen serial data rates (e.g., 10G/25G/50G Ethernet).
Industrial temperature grade	-40°C to +85°C operation with 49.4°C/W thermal resistance - validated for wireless infrastructure and carrier-grade networking equipment.

Applications

10G/25G Ethernet PHY Timing	CPRI Fronthaul Synchronization
Use Scenario: Providing low-jitter reference clock to multi-rate Ethernet PHY ICs (e.g., Broadcom BCM848xx) in switch/router line cards operating at 10.3125 Gbps or 25.78125 Gbps. IC Role / Device Role / Timing Role: Primary VCXO source for SERDES CDR lock; supplies 156.25 MHz or harmonically related clocks with sub-1 ps jitter to meet IEEE 802.3bj/bs eye diagram masks. Use Value: 0.53 ps RMS phase jitter ensures <0.3 UI jitter contribution at 25G, enabling >28 dB SNR margin and BER <10⁻¹² without retiming.	Use Scenario: Delivering synchronized clock to remote radio units (RRUs) and baseband units (BBUs) in LTE/5G macrocell deployments using Common Public Radio Interface (CPRI). IC Role / Device Role / Timing Role: Master timing reference for CPRI Option 2/3/7 link layer; provides stable 156.25 MHz or 30.72 MHz clocks traceable to GPS-disciplined oscillators. Use Value: ±50 ppm total stability over -40°C to +85°C ensures deterministic packet delay variation (<±50 ns) across temperature, meeting CPRI Class A timing budget.
Optical Transport Network (OTN) Line Cards	High-Speed ADC/DAC Clocking
Use Scenario: Generating precise clock signals for OTU2/OTU3/OTU4 framers and FEC engines in DWDM line systems requiring ITU-T G.709 compliance. IC Role / Device Role / Timing Role: VCXO-based clock synthesizer for 10.709 Gbps, 43.018 Gbps, or 111.81 Gbps line rates; supports frequency pulling for pointer justification and network alignment. Use Value: Programmable APR up to ±754.5 ppm allows dynamic frequency adjustment during network reconfiguration without changing hardware.	Use Scenario: Driving sampling clocks for high-resolution RF data converters (e.g., AD9208, DAC38J84) in software-defined radio and radar test equipment. IC Role / Device Role / Timing Role: Low-phase-noise clock source for ADC/DAC sampling; configured at 1.5 GHz or 3 GHz via internal dividers to match converter Nyquist zones. Use Value: 0.46–0.76 ps RMS jitter (frequency-dependent) directly translates to >72 dBFS SNR floor - preserving ENOB in 14-bit+ converters.

10G/25G Ethernet PHY Timing

CPRI Fronthaul Synchronization

Use Scenario: Providing low-jitter reference clock to multi-rate Ethernet PHY ICs (e.g., Broadcom BCM848xx) in switch/router line cards operating at 10.3125 Gbps or 25.78125 Gbps.

IC Role / Device Role / Timing Role: Primary VCXO source for SERDES CDR lock; supplies 156.25 MHz or harmonically related clocks with sub-1 ps jitter to meet IEEE 802.3bj/bs eye diagram masks.

Use Value: 0.53 ps RMS phase jitter ensures <0.3 UI jitter contribution at 25G, enabling >28 dB SNR margin and BER <10⁻¹² without retiming.

Use Scenario: Delivering synchronized clock to remote radio units (RRUs) and baseband units (BBUs) in LTE/5G macrocell deployments using Common Public Radio Interface (CPRI).

IC Role / Device Role / Timing Role: Master timing reference for CPRI Option 2/3/7 link layer; provides stable 156.25 MHz or 30.72 MHz clocks traceable to GPS-disciplined oscillators.

Use Value: ±50 ppm total stability over -40°C to +85°C ensures deterministic packet delay variation (<±50 ns) across temperature, meeting CPRI Class A timing budget.

Optical Transport Network (OTN) Line Cards

High-Speed ADC/DAC Clocking

Use Scenario: Generating precise clock signals for OTU2/OTU3/OTU4 framers and FEC engines in DWDM line systems requiring ITU-T G.709 compliance.

IC Role / Device Role / Timing Role: VCXO-based clock synthesizer for 10.709 Gbps, 43.018 Gbps, or 111.81 Gbps line rates; supports frequency pulling for pointer justification and network alignment.

Use Value: Programmable APR up to ±754.5 ppm allows dynamic frequency adjustment during network reconfiguration without changing hardware.

Use Scenario: Driving sampling clocks for high-resolution RF data converters (e.g., AD9208, DAC38J84) in software-defined radio and radar test equipment.

IC Role / Device Role / Timing Role: Low-phase-noise clock source for ADC/DAC sampling; configured at 1.5 GHz or 3 GHz via internal dividers to match converter Nyquist zones.

Use Value: 0.46–0.76 ps RMS jitter (frequency-dependent) directly translates to >72 dBFS SNR floor - preserving ENOB in 14-bit+ converters.

Equivalent & Alternatives

The following parts are listed as comparable options for similar VCXO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si510-PROG	Programmable I²C-configurable XO/VCXO; 10–945 MHz range; 0.6 ps jitter @ 156.25 MHz; 3.3 V only; 5 mm × 7 mm QFN.	No factory-programmed default frequencies; requires external configuration; lacks integrated crystal - higher board-level design complexity.	Choose for designs needing field-reprogrammability or multi-frequency agility; avoid if factory-set 156.25 MHz + ±50 ppm stability is mandatory.
AK2-156.250MHZ-E	Fixed-frequency LVDS VCXO; 156.25 MHz; ±50 ppm stability; 0.55 ps jitter; 2.5/3.3 V; same 5×7 mm CD package.	No frequency programmability; APR fixed at ±50 ppm; no VC polarity selection - less flexible for system-level tuning.	Choose for cost-sensitive, single-frequency deployments where factory programming and wide APR are unnecessary.

Compared with Si510-PROG and AK2-156.250MHZ-E, the 8N4SV76EC-0009CDI8 uniquely combines factory-programmed 156.25 MHz output, ±50 ppm total stability, and user-selectable APR - delivering plug-and-play timing with field-tuning headroom for telecom infrastructure.

Availability

8N4SV76EC-0009CDI8 is available at Aetrix Electronics and suitable for 10G/25G Ethernet PHY timing, CPRI fronthaul synchronization, and OTN line card applications requiring stable component supply, long-lifecycle support, and guaranteed jitter performance.

Supply support for 8N4SV76EC-0009CDI8 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management solutions for communications, computing, and industrial markets.

The IDT8N4SV76 product line delivers high-frequency, low-jitter programmable VCXOs using FemtoClock® NG technology - designed specifically for synchronization-critical infrastructure including 5G base stations, optical transport, and high-speed data center interconnects.

FAQ

What is the factory-programmed output frequency of the 8N4SV76EC-0009CDI8?

The 8N4SV76EC-0009CDI8 is factory-programmed to 156.25 MHz, a standard reference frequency for 10G/25G Ethernet, CPRI, and SONET/SDH systems. This frequency is set during manufacturing and cannot be altered in the field. The 8N4SV76EC-0009CDI8 achieves 0.53 ps RMS phase jitter at this frequency with 12 kHz–20 MHz integration bandwidth.

Does the 8N4SV76EC-0009CDI8 support both 2.5 V and 3.3 V supply voltages?

Yes, the 8N4SV76EC-0009CDI8 operates with either 2.5 V ±5% or 3.3 V ±5% supply voltage, as specified in Tables 4A and 4B of the datasheet. Power supply current is 135–170 mA at 2.5 V and 140–175 mA at 3.3 V. The 8N4SV76EC-0009CDI8 must use matching LVDS DC characteristics (Tables 4D/4E) depending on selected VDD.

What is the meaning of the "E" in the 8N4SV76EC-0009CDI8 part number?

The "E" in 8N4SV76EC-0009CDI8 denotes the Option Code specifying 3.3 V supply voltage and ±50 ppm total frequency stability over temperature, aging, and initial accuracy. This matches Table 8's Option E definition and confirms the 8N4SV76EC-0009CDI8 is rated for demanding telecom applications requiring tighter stability than Option A/B (±100 ppm).

How does the nOE pin function on the 8N4SV76EC-0009CDI8?

The nOE (pin 2) is an active-low LVCMOS/LVTTL-compatible output enable input with internal pulldown resistor (~50 kΩ). When logic low (≤0.8 V), Q and nQ outputs are enabled; when logic high (≥2.0 V at 3.3 V VDD), both outputs enter high-impedance state. The 8N4SV76EC-0009CDI8 defaults to enabled when nOE is left unconnected due to the internal pulldown.

What package type and dimensions does the 8N4SV76EC-0009CDI8 use?

The 8N4SV76EC-0009CDI8 uses a lead-free 6-lead ceramic VFQFN package marked "CD", measuring 5 mm × 7 mm × 1.55 mm. It complies with RoHS 6 and features exposed pad-less construction. Pin layout is standardized per datasheet Figure 1: VC–nOE–GND–Q–nQ–VDD (top view).

8N4SV76EC-0009CDI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: FemtoClock® NG

Package/Case:: 6-CLCC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: VCXO

Count:: -

Frequency:: 148.5MHz

Voltage - Supply:: 3.135V ~ 3.465V

Current - Supply:: 140 mA

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 6-CLCC (7x5)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

8N4SV76EC-0009CDI8 FAQ

1.How can I place an order for 8N4SV76EC-0009CDI8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 8N4SV76EC-0009CDI8 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 8N4SV76EC-0009CDI8 reliable?

The price and inventory of 8N4SV76EC-0009CDI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N4SV76EC-0009CDI8 is usually 5 days.

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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N4SV76EC-0009CDI8 transactions.

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8N4SV76EC-0009CDI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 8N4SV76EC-0009CDI8 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 8N4SV76EC-0009CDI8?

For technical support, including 8N4SV76EC-0009CDI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N4SV76EC-0009CDI8 requirements.

6.How does Aetrix verify that 8N4SV76EC-0009CDI8 is sourced from the original manufacturer or authorized distributors?

All 8N4SV76EC-0009CDI8 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 8N4SV76EC-0009CDI8 meets industry standards.

7.What is the process for return or replacement of 8N4SV76EC-0009CDI8?

All 8N4SV76EC-0009CDI8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N4SV76EC-0009CDI8, 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 8N4SV76EC-0009CDI8 part is unused and in its original packaging.

Return procedure for 8N4SV76EC-0009CDI8:

1.Submit a request within 90 days.

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

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