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Renesas 8N3DV85KC-0201CDI8
- Part No.:
- 8N3DV85KC-0201CDI8
- Manufacturer:
- Renesas
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-CLCC
- Datasheet:
-
8N3DV85KC-0201CDI8.pdf
- Description:
- IC OSC VCXO DUAL FREQ 6-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
8N3DV85KC-0201CDI8 from Renesas Electronics (formerly IDT) is a LVPECL dual-frequency programmable voltage-controlled crystal oscillator (VCXO) used for high-precision clock generation in telecom and wireless infrastructure. It delivers two factory-programmed output frequencies between 15.476MHz–866.67MHz or 975MHz–1,300MHz, with 218Hz frequency resolution, ±20ppm total stability (Option K), and RMS phase jitter of 0.46ps (12kHz–20MHz at 622.08MHz).
For engineers reviewing the 8N3DV85KC-0201CDI8 datasheet, 8N3DV85KC-0201CDI8 pinout, 8N3DV85KC-0201CDI8 application, or 8N3DV85KC-0201CDI8 equivalent, this device supports rapid frequency switching via FSEL control, operates across –40°C to +85°C, and integrates fourth-generation FemtoClock® NG PLL synthesis with fractional-N feedback for low-noise, high-flexibility timing in 5mm × 7mm ceramic VCXO modules.
Technical Context
The 8N3DV85KC-0201CDI8 implements a fractional-N PLL architecture using a 114.285MHz fundamental-mode crystal reference, with configurable pre-divider (P), integer/fractional feedback divider (MINT/MFRAC), and post-divider (N). Its VCO operates in the 1950–2600MHz range, enabling wideband synthesis while maintaining sub-picosecond jitter performance.
Frequency selection is controlled by a single LVCMOS/LVTTL-compatible FSEL pin that toggles between two factory-programmed configurations. The VC input accepts 0–VCC tuning voltage with programmable gain (7.57–477.27 ppm/V depending on supply), supporting precise pull-range calibration from ±12.5ppm to ±787.5ppm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | LVPECL differential pair (Q/nQ), terminated to VCC – 2V for 50Ω transmission line drive |
| Frequency Range | 15.476–866.67MHz or 975–1300MHz; two factory-set values selected by FSEL |
| Frequency Resolution | 218Hz or better - enables precise channel spacing in RF and serial data applications |
| RMS Phase Jitter | 0.46ps (12kHz–20MHz integration @ 622.08MHz) - meets SONET OC-48/SDH STM-16 jitter compliance |
| Supply Voltage | 2.5V ±5% or 3.3V ±5% - dual-voltage support simplifies integration into mixed-supply systems |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade wireless base station and optical transport equipment |
| Total Stability | ±33ppm (10-year life, Option K) - includes initial accuracy, temp drift, and aging; suitable for holdover timing |
Pinout & Package
6-lead ceramic VFQFN package (5mm × 7mm × 1.55mm, RoHS 6-compliant); lead-free, surface-mount, no exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VC | VCXO control voltage input | Analog tuning port; 0–VCC range sets output frequency within programmed pull range; 500kΩ input impedance |
| 2 - FSEL | Frequency select input | LVTTL/LVCMOS-compatible digital control; selects between two factory-programmed frequencies; internal 50kΩ pulldown |
| 3 - VEE | Negative power supply | Ground reference for LVPECL outputs; must be connected to system ground |
| 4 - Q | Differential clock output (+) | LVPECL logic high = VCC – 0.9V typical; drives 50Ω load terminated to VCC – 2V |
| 5 - nQ | Differential clock output (–) | Complementary to Q; 180° phase relationship ensures common-mode noise rejection |
| 6 - VCC | Positive power supply | Accepts 2.5V or 3.3V ±5%; supplies core logic and output drivers; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual-frequency programmability | Two independent factory-set frequencies enable dynamic reconfiguration without external programming interface |
| FemtoClock® NG PLL synthesis | Fourth-generation fractional-N architecture minimizes phase noise and enables ultra-fine 218Hz frequency steps |
| Configurable VCXO pull range | Factory-programmable from ±12.5ppm to ±787.5ppm - matches loop bandwidth requirements of diverse PLL applications |
| Low-jitter LVPECL outputs | 0.46ps RMS phase jitter (12kHz–20MHz) at 622.08MHz supports 10G Ethernet, CPRI, and OTU2 timing integrity |
| Industrial temperature operation | –40°C to +85°C ambient rating ensures stable frequency accuracy in outdoor wireless and telecom chassis environments |
Applications
| Wireless Base Station Timing | Optical Transport Network (OTN) |
|---|---|
|
Use Scenario: Synchronizing multiple RF transceivers and digital front-end processors in LTE/5G macrocells requiring holdover during GPS signal loss. IC Role / Device Role / Timing Role: Primary VCXO providing dual-frequency reference for baseband clocking and fronthaul interface timing. Use Value: ±33ppm total stability over 10 years and sub-0.5ps jitter ensure compliant holdover performance per ITU-T G.8262 EEC-2. |
Use Scenario: Generating synchronous line-rate clocks for OTU2 (10.709 Gbps) and OTU3 (43.018 Gbps) framing in DWDM line cards. IC Role / Device Role / Timing Role: Low-phase-noise VCXO supplying clean reference to CDR and SERDES blocks. Use Value: 0.46ps RMS phase jitter at 622.08MHz directly satisfies GR-1244-CORE jitter transfer and generation masks. |
| Packet-Optical Transport Switching | High-Speed Data Acquisition Systems |
|
Use Scenario: Clocking multi-gigabit packet processing ASICs and FPGA-based traffic managers in carrier-grade routers. IC Role / Device Role / Timing Role: Dual-frequency VCXO enabling seamless failover between primary and backup timing sources. Use Value: FSEL-driven <1ms frequency settling time allows deterministic switchover without packet loss or buffer underrun. |
Use Scenario: Providing synchronized sampling clocks for multi-channel ADCs in radar and test instrumentation platforms. IC Role / Device Role / Timing Role: Precision VCXO delivering ultra-low-jitter clock to ADC master clock inputs. Use Value: Sub-0.5ps integrated jitter preserves ENOB in 14-bit+ ADCs operating above 500MSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCXO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-PROG | Single-output, I²C-programmable XO/VCXO; no dual-frequency mode; 0.5ps jitter @ 622MHz | Requires external MCU for configuration; lacks FSEL hardware toggle for real-time switching | Choose when field-upgradable frequency tuning is needed over fixed dual-frequency operation |
| 8N3SV78EC-0001CDI8 | Same family, quad-frequency VCXO; identical package and pinout; higher current draw (175mA vs. 160mA) | Supports four factory frequencies instead of two; same jitter and stability specs | Choose when system requires >2 preconfigured clock rates without changing hardware |
Compared with Si510-PROG and 8N3SV78EC-0001CDI8, the 8N3DV85KC-0201CDI8 uniquely balances minimal pin count, hardware-based dual-frequency agility, and industrial-grade stability-making it optimal for space-constrained, high-reliability telecom timing where software intervention is undesirable.
Availability
8N3DV85KC-0201CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networks, and packet-switched routing systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp.
Supply support for 8N3DV85KC-0201CDI8 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 is a global semiconductor leader formed through the merger of IDT and Renesas, specializing in analog, mixed-signal, and timing solutions for communications, automotive, and industrial markets.
The 8N3DV85KC-0201CDI8 belongs to Renesas' FemtoClock® NG VCXO product line, designed specifically for high-frequency, low-jitter programmable timing in next-generation wireless and optical infrastructure equipment.
FAQ
What is the factory-programmed frequency pair for 8N3DV85KC-0201CDI8?
The exact factory-programmed frequencies for 8N3DV85KC-0201CDI8 are defined by its order code suffix "0201", which corresponds to specific default frequencies documented in Renesas' FemtoClock NG Ceramic-Package XO and VCXO Ordering Product Information. These frequencies fall within the supported ranges (15.476–866.67MHz or 975–1300MHz) and are set at manufacturing; they cannot be altered in the field. The 8N3DV85KC-0201CDI8 retains full functionality only when operated within those two pre-configured values.
Does 8N3DV85KC-0201CDI8 support both 2.5V and 3.3V supply voltages simultaneously?
No - the 8N3DV85KC-0201CDI8 operates on either 2.5V ±5% or 3.3V ±5%, but not both at once. The supply voltage is fixed per unit based on its option code ("K" indicates 3.3V ±5%). Supply selection determines key parameters including oscillator gain (7.57–477.27 ppm/V), output voltage swing (0.6–1.0V p-p), and power consumption (130–160mA). Mixing supplies risks violating absolute maximum ratings and invalidates AC/DC specifications.
How does the FSEL pin function in 8N3DV85KC-0201CDI8?
The FSEL pin on the 8N3DV85KC-0201CDI8 is an LVCMOS/LVTTL-compatible digital input with internal 50kΩ pulldown. When driven low (≤0.7V), it selects Frequency 0; when driven high (≥2.0V for 3.3V supply), it selects Frequency 1. Frequency switching occurs within 1ms, with no glitch or runt pulse. The 8N3DV85KC-0201CDI8 does not require external pull-up or debouncing circuitry due to its built-in termination.
What is the significance of the "CD" package code in 8N3DV85KC-0201CDI8?
The "CD" in 8N3DV85KC-0201CDI8 denotes a lead-free, 6-lead ceramic VFQFN package measuring 5mm × 7mm × 1.55mm, compliant with RoHS 6. This package features metalized terminations compatible with standard reflow profiles, zero moisture sensitivity level (MSL1), and thermal resistance (θJA) of 49.4°C/W under still air - critical for thermal management in densely packed telecom modules where the 8N3DV85KC-0201CDI8 is commonly deployed.
Can the VC input of 8N3DV85KC-0201CDI8 be left unconnected?
No - the VC pin of the 8N3DV85KC-0201CDI8 must be actively driven with a stable DC voltage between 0V and VCC to maintain specified frequency accuracy and stability. Leaving VC floating violates the device's operating conditions and may cause frequency drift, increased jitter, or oscillation failure. For fixed-frequency operation, VC should be tied to VCC/2 via a low-noise voltage divider or precision DAC output, as nominal tuning voltage is VCC/2.
8N3DV85KC-0201CDI8 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:
- 153.6MHz, 125MHz
- Voltage - Supply:
- 3.135V ~ 3.465V
- Current - Supply:
- 130 mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-CLCC (7x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
8N3DV85KC-0201CDI8 FAQ
1.How can I place an order for 8N3DV85KC-0201CDI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 8N3DV85KC-0201CDI8 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 8N3DV85KC-0201CDI8 reliable?
The price and inventory of 8N3DV85KC-0201CDI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N3DV85KC-0201CDI8 is usually 5 days.
3.What payment methods are accepted for 8N3DV85KC-0201CDI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N3DV85KC-0201CDI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8N3DV85KC-0201CDI8?
8N3DV85KC-0201CDI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8N3DV85KC-0201CDI8 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 8N3DV85KC-0201CDI8?
For technical support, including 8N3DV85KC-0201CDI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N3DV85KC-0201CDI8 requirements.
6.How does Aetrix verify that 8N3DV85KC-0201CDI8 is sourced from the original manufacturer or authorized distributors?
All 8N3DV85KC-0201CDI8 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 8N3DV85KC-0201CDI8 meets industry standards.
7.What is the process for return or replacement of 8N3DV85KC-0201CDI8?
All 8N3DV85KC-0201CDI8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N3DV85KC-0201CDI8, 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 8N3DV85KC-0201CDI8 part is unused and in its original packaging.
Return procedure for 8N3DV85KC-0201CDI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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