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Renesas 8N4SV76AC-0024CDI8
- Part No.:
- 8N4SV76AC-0024CDI8
- Manufacturer:
- Renesas
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-CLCC
- Datasheet:
-
8N4SV76AC-0024CDI8.pdf
- Description:
- IC OSC VCXO 100MHZ 6-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,106
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Product details
Overview
8N4SV76AC-0024CDI8 from Integrated Device Technology is an LVDS frequency-programmable VCXO with factory-programmed output at 156.25 MHz, ±50 ppm total stability (Option E), and 0.53 ps RMS phase jitter (12 kHz–20 MHz). It operates from a 3.3 V supply, supports –40°C to +85°C ambient, and delivers differential clock signals for high-speed serial interfaces in telecom infrastructure.
For engineers reviewing the 8N4SV76AC-0024CDI8 datasheet, 8N4SV76AC-0024CDI8 pinout, 8N4SV76AC-0024CDI8 application, or 8N4SV76AC-0024CDI8 equivalent, key selection criteria include its LVDS output compliance, programmable pull range (±4.5 to ±754.5 ppm), 218 Hz frequency resolution, factory-configured control voltage polarity, and ceramic 5 mm × 7 mm × 1.55 mm package with thermal resistance of 49.4°C/W.
Technical Context
The 8N4SV76AC-0024CDI8 integrates a 114.285 MHz third-overtone crystal oscillator driving a fourth-generation FemtoClock® NG PLL with fractional-N feedback (MINT + MFRAC), pre-divider (P), and post-divider (N) to synthesize frequencies from 15.476 MHz to 866.67 MHz and 975 MHz to 1300 MHz. Its VCO operates at 1950–2600 MHz.
Control is implemented via LVCMOS/LVTTL-compatible nOE input enabling high-impedance output states, and VC input accepting 0–VDD tuning voltage with oscillator gain configurable from 7.57 to 477.27 ppm/V. Phase noise performance is optimized using delta-sigma modulation and a high reference frequency to minimize multiplication-induced jitter.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 156.25 MHz - factory-programmed default frequency, within 15.476–866.67 MHz or 975–1300 MHz ranges |
| Frequency Resolution | 218 Hz - enables precise channel spacing in multi-rate serial links |
| RMS Phase Jitter | 0.53 ps (typical) @ 156.25 MHz, 12 kHz–20 MHz integration - meets SONET OC-192 and 10G Ethernet jitter budgets |
| Supply Voltage | 3.3 V ±5% - compatible with standard digital logic rails; supports 2.5 V option in other variants |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade wireless base station and packet switch applications |
| Total Stability | ±63 ppm (10-year life, Option E) - combines initial accuracy, temp drift, and aging for long-term timing integrity |
| Output Interface | LVDS - provides low-noise, low-skew differential signaling with 247–454 mV differential swing |
Pinout & Package
6-lead ceramic VFQFN package, 5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VC | VCXO control voltage input | Accepts 0–VDD analog tuning voltage; sets output frequency deviation per configured KV gain (e.g., ±50 ppm over 3.3 V) |
| nOE | LVCMOS/LVTTL output enable (active-low) | Pulldown-enabled; drives Q/nQ into high-Z when asserted - enables dynamic clock gating without external switches |
| GND | Power supply ground | Reference for all analog and digital circuitry; requires low-inductance connection to minimize ground bounce and jitter |
| Q, nQ | Differential LVDS clock outputs | Matched pair delivering 156.25 MHz LVDS signal; require 100 Ω differential termination at receiver |
| VDD | Positive power supply | 3.3 V ±5%; decoupling with 0.1 µF capacitor placed adjacent to pin essential for sub-picosecond jitter performance |
Key Features
| Feature | Design Value |
|---|---|
| FemtoClock® NG PLL architecture | Enables ultra-low phase noise via high-frequency VCO (1950–2600 MHz) and delta-sigma fractional-N synthesis |
| Factory-programmable APR and polarity | Eliminates need for external DAC or polarity-reversal circuitry; pull range set to ±50 ppm for this variant |
| 2.5 V / 3.3 V dual-supply compatibility | Reduces BOM count across mixed-voltage system designs; internal regulation ensures consistent core operation |
| LVDS output with 0.53 ps jitter | Meets stringent SERDES clocking requirements for 10G/25G Ethernet, CPRI, and OTU2/OTU3 optical transport |
| 6-lead ceramic 5×7 mm package | Provides superior thermal performance (θJA = 49.4°C/W) vs. plastic packages, critical for stable frequency under airflow-limited conditions |
Applications
| Wireless Base Station Timing | 10G/25G Ethernet PHY Clocking |
|---|---|
Use Scenario: Synchronizing RF transceivers and digital front-end FPGAs in LTE/5G macrocells requiring traceable frequency stability across temperature. IC Role / Device Role / Timing Role: Primary VCXO providing 156.25 MHz reference to SerDes and framer ICs; tuned via network management interface for holdover alignment. Use Value: ±63 ppm total stability over 10 years ensures minimal time error accumulation during GPS outage, supporting ITU-T G.8262 ePRTC Class C compliance. | Use Scenario: Driving XAUI or SFI-5 interfaces in enterprise switches where deterministic latency and low jitter are mandatory. IC Role / Device Role / Timing Role: Low-jitter LVDS clock source for multi-gigabit transceiver lanes; enabled/disabled via nOE for power-aware link training. Use Value: 0.53 ps RMS phase jitter directly reduces bit error rate (BER) in 10GBASE-R and 25GBASE-R systems operating at PAM4 or NRZ. |
| Optical Transport Network (OTN) Line Cards | High-Performance Data Center Switch Fabric |
Use Scenario: Generating synchronous clocks for OTU2/OTU3 framers and FEC engines in DWDM line cards. IC Role / Device Role / Timing Role: Programmable VCXO referenced to BITS or atomic clock; frequency pulled via VC input to absorb wander from upstream timing sources. Use Value: Factory-configurable APR (±50 ppm) and 218 Hz resolution allow precise tracking of SDH/SONET network timing while meeting GR-1244-CORE wander limits. | Use Scenario: Providing synchronized clocking across multiple ASICs in modular spine-leaf topologies with strict skew and jitter constraints. IC Role / Device Role / Timing Role: Central timing element distributing 156.25 MHz to switch fabric controllers, packet buffers, and PCIe Gen4 root complexes. Use Value: Ceramic package and low θJA ensure thermal stability across dense PCB layouts, preventing frequency drift due to localized heating near ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCXO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-PROG | CMOS output only; no LVDS; uses different PLL architecture (DSPLL); max frequency 210 MHz | Limited to lower-speed interfaces (e.g., PCIe Gen2, SATA); unsuitable for 10G+ SerDes requiring LVDS | Select only if LVDS is unnecessary and board space allows larger SOIC-8 package |
| AK20E-156.250 | LVDS output; fixed 156.25 MHz; no VCXO tuning capability; ±20 ppm stability (Option K) | Cannot compensate for system-level wander or holdover; lacks VC input and programmable APR | Choose for cost-sensitive, static-clock applications where pull range is irrelevant |
Compared with Si510-PROG and AK20E-156.250, the 8N4SV76AC-0024CDI8 uniquely delivers LVDS output, factory-programmed VCXO functionality, and sub-0.6 ps jitter at 156.25 MHz-making it the only option among the three suitable for telecom-grade, tunable, high-speed serial clocking.
Availability
8N4SV76AC-0024CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networks, and high-speed data center switching requiring stable component supply, long-lifecycle support, and guaranteed timing performance.
Supply support for 8N4SV76AC-0024CDI8 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 sensor solutions for communications, computing, and industrial markets.
The IDT8N4SV76 product line delivers frequency-programmable VCXOs using FemtoClock® NG technology, targeting high-performance timing needs in 5G infrastructure, OTN, and cloud-scale networking equipment where low jitter and programmability are critical.
FAQ
What is the factory-programmed output frequency of the 8N4SV76AC-0024CDI8?
The 8N4SV76AC-0024CDI8 is factory-programmed to 156.25 MHz, a common reference frequency for 10G Ethernet, CPRI, and OTU2 applications. This value is stored in on-chip ROM and cannot be altered in the field. The device retains full VCXO functionality-its output frequency can be pulled ±50 ppm around 156.25 MHz via the VC pin, as specified by its Option E configuration.
Does the 8N4SV76AC-0024CDI8 support both 2.5 V and 3.3 V supply voltages?
No-the 8N4SV76AC-0024CDI8 is specifically configured for 3.3 V ±5% operation (Option E). While the IDT8N4SV76 family supports 2.5 V in variants like those with Option B or F, this exact part number uses a 3.3 V supply and is characterized for DC and AC parameters-including 0.53 ps RMS phase jitter-under that condition.
What is the meaning of "CD" in the 8N4SV76AC-0024CDI8 package code?
In the 8N4SV76AC-0024CDI8 part number, "CD" denotes a lead-free, 6-lead ceramic VFQFN package measuring 5 mm × 7 mm × 1.55 mm. This package type provides superior thermal performance (θJA = 49.4°C/W) and hermetic reliability compared to plastic alternatives-critical for maintaining frequency stability in thermally demanding telecom environments.
Can the 8N4SV76AC-0024CDI8 be used as a drop-in replacement for fixed-frequency XO devices?
The 8N4SV76AC-0024CDI8 is not a direct drop-in for fixed XOs because it requires active VC and nOE control signals and has different startup behavior (15 ms). However, it can replace fixed XOs in systems needing VCXO flexibility-provided the design accommodates the VC tuning path, proper LVDS termination, and high-impedance state management via nOE.
What is the significance of the "I8" suffix in 8N4SV76AC-0024CDI8?
The "I8" suffix in 8N4SV76AC-0024CDI8 indicates tape-and-reel packaging (8) and industrial temperature range (I: –40°C to +85°C). This matches the device's qualification and ensures compatibility with automated SMT assembly lines. The "I" also confirms the part meets extended thermal specifications required for outdoor and chassis-mounted telecom hardware.
8N4SV76AC-0024CDI8 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:
- 100MHz
- 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:
- -
8N4SV76AC-0024CDI8 FAQ
1.How can I place an order for 8N4SV76AC-0024CDI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 8N4SV76AC-0024CDI8 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 8N4SV76AC-0024CDI8 reliable?
The price and inventory of 8N4SV76AC-0024CDI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N4SV76AC-0024CDI8 is usually 5 days.
3.What payment methods are accepted for 8N4SV76AC-0024CDI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N4SV76AC-0024CDI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8N4SV76AC-0024CDI8?
8N4SV76AC-0024CDI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8N4SV76AC-0024CDI8 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 8N4SV76AC-0024CDI8?
For technical support, including 8N4SV76AC-0024CDI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N4SV76AC-0024CDI8 requirements.
6.How does Aetrix verify that 8N4SV76AC-0024CDI8 is sourced from the original manufacturer or authorized distributors?
All 8N4SV76AC-0024CDI8 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 8N4SV76AC-0024CDI8 meets industry standards.
7.What is the process for return or replacement of 8N4SV76AC-0024CDI8?
All 8N4SV76AC-0024CDI8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N4SV76AC-0024CDI8, 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 8N4SV76AC-0024CDI8 part is unused and in its original packaging.
Return procedure for 8N4SV76AC-0024CDI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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