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Renesas 8N4SV76KC-0164CDI
- Part No.:
- 8N4SV76KC-0164CDI
- Manufacturer:
- Renesas
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-CLCC
- Datasheet:
-
8N4SV76KC-0164CDI.pdf
- Description:
- IC OSC VCXO 156.25MHZ 6-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,185
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Product details
Overview
8N4SV76KC-0164CDI from Integrated Device Technology is an LVDS frequency-programmable VCXO with factory-programmed 156.25 MHz output, ±20 ppm total stability (Option K), and 0.53 ps RMS phase jitter (12 kHz–20 MHz) at that frequency. It operates from a 3.3 V supply, supports -40°C to +85°C ambient, and delivers differential LVDS clock outputs in a RoHS-compliant 6-lead ceramic 5 mm × 7 mm × 1.55 mm package for wireless infrastructure timing.
For engineers reviewing the 8N4SV76KC-0164CDI datasheet, 8N4SV76KC-0164CDI pinout, 8N4SV76KC-0164CDI application, or 8N4SV76KC-0164CDI equivalent, key selection criteria include its programmable pull range (±4.5 to ±754.5 ppm), output enable control (LVCMOS/LVTTL compatible), low-phase-noise FemtoClock® NG PLL architecture, and guaranteed 15.476–866.67 MHz / 975–1300 MHz frequency coverage.
Technical Context
The 8N4SV76KC-0164CDI integrates a 114.285 MHz third-overtone crystal oscillator driving a fourth-generation FemtoClock® NG fractional-N PLL with 7-bit integer (MINT) and 18-bit fractional (MFRAC) feedback dividers, enabling sub-218 Hz frequency resolution. Its VCO operates at 1950–2600 MHz before post-division.
It features factory-configured control voltage polarity and absolute pull range (APR), with oscillator gain (KV) ranging 7.57–477.27 ppm/V at 3.3 V. The device includes an LVCMOS/LVTTL-compatible nOE input that places Q/nQ outputs in high-impedance state when asserted high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | Factory-programmed to 156.25 MHz - precise reference for Ethernet, CPRI, and SyncE applications. |
| Phase Jitter (RMS) | 0.53 ps typical (12 kHz–20 MHz integration) - meets stringent OC-192/SONET and 10GBase-R jitter budgets. |
| Frequency Stability | ±20 ppm total (Option K, 10-year life) - ensures long-term timing accuracy in base station radios and packet switches. |
| Supply Voltage | 3.3 V ±5% - compatible with standard telecom power rails and simplifies system-level voltage regulation. |
| Operating Temp | -40°C to +85°C - qualified for industrial and outdoor wireless infrastructure deployments. |
| Output Interface | LVDS differential pair (Q/nQ) - provides noise-immune, low-skew clock distribution across PCBs and backplanes. |
| Package | 6-lead ceramic VFQFN, 5 mm × 7 mm × 1.55 mm - compact, thermally robust RoHS-6 footprint for space-constrained RF modules. |
Pinout & Package
6-lead ceramic VFQFN (5 mm × 7 mm × 1.55 mm, RoHS 6), surface-mount, lead-free package with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VC | VCXO control voltage input | Analog tuning input (0–VDD); sets output frequency deviation within programmed APR; internal pulldown resistor (~50 kΩ). |
| nOE | Output enable (active-high) | LVCMOS/LVTTL-compatible shutdown control; drives Q/nQ into high-Z when logic high; internal pulldown default. |
| GND | Power supply ground | Reference return for VDD, VC, and nOE; must be low-inductance connection to minimize ground bounce and jitter. |
| Q, nQ | Differential LVDS clock outputs | True/complement LVDS pair (247–454 mV differential swing, 1.13–1.31 V common-mode); require 100 Ω differential termination. |
| VDD | Positive supply rail | 3.3 V ±5% input; decoupling (0.1 µF ceramic + bulk cap) required adjacent to pin to suppress supply noise-induced jitter. |
Key Features
| Feature | Design Value |
|---|---|
| Fractional-N PLL with MINT/MFRAC | Enables 218 Hz frequency resolution and flexible synthesis across dual bands (15.476–866.67 MHz and 975–1300 MHz). |
| Factory-programmable APR & polarity | Eliminates external tuning components; allows precise matching to system loop filter requirements without redesign. |
| Low-noise FemtoClock® NG VCO | Delivers -127 dBc/Hz phase noise at 1 MHz offset (156.25 MHz carrier), critical for EVM-sensitive RF transceivers. |
| LVDS output enable (nOE) | Supports dynamic clock gating in multi-rail systems; reduces power during idle states without requiring external logic. |
| High-precision internal crystal | 114.285 MHz third-overtone resonator enables stable reference with ±20 ppm total stability over temperature, aging, and initial tolerance. |
Applications
| Wireless Base Station Timing | Optical Transport Network (OTN) |
|---|---|
Use Scenario: Synchronizing LTE/5G radio units and baseband processing units in distributed RAN architectures. IC Role / Device Role / Timing Role: Primary frequency-agile reference for JESD204B converters and FPGA-based digital front-end timing. Use Value: Sub-0.55 ps RMS jitter ensures <0.5% EVM degradation in 256-QAM transmission; ±20 ppm stability maintains holdover accuracy during GNSS outages. | Use Scenario: Providing synchronous clocking for OTU2/OTU3 framer ICs and SerDes in DWDM line cards. IC Role / Device Role / Timing Role: Low-jitter VCXO source for SONET/SDH and OTN timing recovery loops requiring tight wander compliance. Use Value: 0.53 ps phase jitter meets ITU-T G.823/G.825 mask requirements; LVDS interface ensures clean signal integrity over 10+ inch PCB traces. |
| Packet-Switched Telecom Core | High-Speed Data Acquisition Systems |
Use Scenario: Clocking precision ADCs/DACs and time-stamping engines in network packet processors and TSN switches. IC Role / Device Role / Timing Role: Programmable jitter-clean reference for IEEE 1588 PTP grandmaster clocks and boundary clocks. Use Value: Factory-set 156.25 MHz aligns with 10G/25G Ethernet rates; APR programmability supports adaptive loop bandwidth tuning in software-defined timing. | Use Scenario: Driving sampling clocks in radar, medical imaging, and test equipment requiring ultra-low aperture jitter. IC Role / Device Role / Timing Role: Stable, low-phase-noise clock source for 14+ bit, 100+ MSPS ADCs where SNR is jitter-limited. Use Value: 0.53 ps RMS jitter translates to >78 dB SNR at 100 MSPS; -40°C to +85°C rating supports operation in harsh environmental enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCXO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-156M250 | CMOS output only; ±50 ppm stability (A-grade); no factory-programmable APR; uses different PLL architecture (DSPLL®). | Lacks LVDS output and fine APR control; requires external level-shifting for differential interfaces. | Select if CMOS load compatibility and lower cost outweigh need for LVDS and precise pull-range tuning. |
| AK2-156.250MHZ-E | LVDS output; ±25 ppm stability; fixed 156.25 MHz; no VCXO functionality (XO only); smaller 3.2 mm × 2.5 mm package. | Not voltage-controlled; cannot support phase-locking or dynamic frequency adjustment in closed-loop systems. | Select only for static clocking where VCXO behavior is unnecessary and board space is highly constrained. |
Compared with Si510-156M250 and AK2-156.250MHZ-E, the 8N4SV76KC-0164CDI uniquely combines factory-programmed LVDS output, ±20 ppm stability, and configurable APR in a thermally optimized ceramic package-making it the only choice for jitter-critical, phase-locked telecom timing where both precision and flexibility are mandatory.
Availability
8N4SV76KC-0164CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networks, and packet-switched telecom core systems requiring stable component supply, long-life availability, and guaranteed traceable sourcing.
Supply support for 8N4SV76KC-0164CDI 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, designs high-performance timing, memory interface, and RF solutions for communications, computing, and industrial markets.
The IDT8N4SV76 family delivers frequency-programmable VCXOs using FemtoClock® NG technology, targeting applications demanding ultra-low jitter, wide pull range, and factory-configurable stability for 4G/5G, OTN, and high-speed data acquisition.
FAQ
What is the factory-programmed output frequency of the 8N4SV76KC-0164CDI?
The 8N4SV76KC-0164CDI is factory-programmed to 156.25 MHz, a standard frequency used in Ethernet (10GBase-R), CPRI, and SyncE applications. This value is permanently stored in on-chip ROM and cannot be altered in the field. The device retains full VCXO functionality around this center frequency, supporting voltage-controlled tuning within its configured absolute pull range.
Does the 8N4SV76KC-0164CDI support both 2.5 V and 3.3 V supply voltages?
No, the 8N4SV76KC-0164CDI is specifically configured for 3.3 V operation (Option K). Its order code suffix "K" denotes VDD = 3.3 V ±5% and ±20 ppm total stability. While the underlying IDT8N4SV76 platform supports 2.5 V variants (e.g., Option F or L), this exact part number is rated and tested only at 3.3 V and must not be operated at 2.5 V.
How is the absolute pull range (APR) configured on the 8N4SV76KC-0164CDI?
The APR of the 8N4SV76KC-0164CDI is factory-programmed and fixed per the order code "0164", which corresponds to a specific APR setting (e.g., ±100 ppm or ±200 ppm - exact value defined in IDT's FemtoClock NG ordering guide). It is not user-adjustable; configuration occurs during manufacturing via on-chip registers and cannot be modified after shipment.
What is the significance of the "CDI" suffix in 8N4SV76KC-0164CDI?
The "CDI" suffix indicates: C = revision level, D = 6-lead ceramic 5 mm × 7 mm × 1.55 mm RoHS-6 package, and I = industrial temperature range (-40°C to +85°C). This matches the physical and environmental specifications confirmed in the IDT8N4SV76 datasheet Revision B and ensures compatibility with telecom-grade thermal requirements.
Can the 8N4SV76KC-0164CDI be used as a drop-in replacement for other IDT VCXOs like the 8N4SV75 series?
No - the 8N4SV76KC-0164CDI is not pin-compatible or functionally interchangeable with the 8N4SV75 series. Differences include distinct PLL architecture (FemtoClock® NG vs. earlier generation), updated pinout assignments, and revised electrical characteristics (e.g., improved phase noise, tighter DC specs). Direct substitution requires validation of timing, layout, and firmware configuration against the 8N4SV76KC-0164CDI datasheet.
8N4SV76KC-0164CDI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- FemtoClock® NG
- Package/Case:
- 6-CLCC
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- VCXO
- Count:
- -
- Frequency:
- 156.25MHz
- 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:
- -
8N4SV76KC-0164CDI FAQ
1.How can I place an order for 8N4SV76KC-0164CDI through Aetrix?
Please submit a Request for Quotation (RFQ) for 8N4SV76KC-0164CDI 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 8N4SV76KC-0164CDI reliable?
The price and inventory of 8N4SV76KC-0164CDI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N4SV76KC-0164CDI is usually 5 days.
3.What payment methods are accepted for 8N4SV76KC-0164CDI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N4SV76KC-0164CDI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8N4SV76KC-0164CDI?
8N4SV76KC-0164CDI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8N4SV76KC-0164CDI 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 8N4SV76KC-0164CDI?
For technical support, including 8N4SV76KC-0164CDI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N4SV76KC-0164CDI requirements.
6.How does Aetrix verify that 8N4SV76KC-0164CDI is sourced from the original manufacturer or authorized distributors?
All 8N4SV76KC-0164CDI 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 8N4SV76KC-0164CDI meets industry standards.
7.What is the process for return or replacement of 8N4SV76KC-0164CDI?
All 8N4SV76KC-0164CDI units undergo pre-shipment inspection (PSI). If there is an issue with 8N4SV76KC-0164CDI, 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 8N4SV76KC-0164CDI part is unused and in its original packaging.
Return procedure for 8N4SV76KC-0164CDI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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