My Inquiry
My Account
Renesas 8N3DV85FC-0164CDI
- Part No.:
- 8N3DV85FC-0164CDI
- Manufacturer:
- Renesas
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-CLCC
- Datasheet:
-
8N3DV85FC-0164CDI.pdf
- Description:
- IC OSC VCXO DUAL FREQ 6-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,257
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
8N3DV85FC-0164CDI from Renesas (formerly IDT) is a LVPECL dual-frequency programmable voltage-controlled crystal oscillator (VCXO) with factory-programmed frequencies in the 15.476–866.67 MHz and 975–1,300 MHz ranges, 0.46 ps RMS phase jitter at 622.08 MHz (12 kHz–20 MHz), ±20 ppm total stability (Option K), and -40°C to +85°C operation. It serves as a high-precision, switchable clock source in wireless infrastructure baseband timing and telecom line-card synchronization.
For engineers reviewing the 8N3DV85FC-0164CDI datasheet, 8N3DV85FC-0164CDI pinout, 8N3DV85FC-0164CDI application, or 8N3DV85FC-0164CDI equivalent, this page delivers verified electrical specs, FSEL-controlled dual-frequency switching behavior, LVPECL termination guidance, VCXO pull-range programmability, and industrial-grade thermal performance data - all confirmed from the official IDT8N3DV85CCD Rev A datasheet.
Technical Context
The 8N3DV85FC-0164CDI integrates a 114.285 MHz 3rd-overtone crystal with a fourth-generation FemtoClock® NG PLL featuring fractional-N synthesis (MINT + MFRAC), pre-divider (P), and post-divider (N). Its architecture enables two factory-configured output frequencies selected via the LVCMOS/LVTTL-compatible FSEL pin, with immediate frequency settling (<1 ms).
It implements a VCO operating at 1950–2600 MHz, supporting ultra-fine frequency resolution down to 218 Hz, programmable VCXO pull range (±12.5 to ±787.5 ppm), and configurable control voltage polarity - all stored in on-chip ROM. The device uses differential LVPECL outputs (Q/nQ) terminated to VCC – 2 V and accepts either 2.5 V or 3.3 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | LVPECL differential pair (Q/nQ); requires 50 Ω termination to VCC – 2 V for signal integrity. |
| Frequency Range | Two factory-programmed frequencies: one in 15.476–866.67 MHz, another in 975–1,300 MHz; resolution ≤218 Hz. |
| RMS Phase Jitter | 0.46 ps typical @ 622.08 MHz (12 kHz–20 MHz); enables SONET/SDH OC-48 and OTU2 compliance. |
| Total Stability | ±33 ppm over 10 years (Option K); includes initial accuracy, temp drift, and aging - critical for long-life telecom deployments. |
| Supply Voltage | 2.5 V ±5% or 3.3 V ±5%; supports mixed-voltage system integration without level-shifting. |
| Operating Temp | -40°C to +85°C ambient; validated for industrial wireless infrastructure and carrier-grade networking equipment. |
| FSEL Logic | LVCMOS/LVTTL-compatible input with internal 50 kΩ pulldown; selects between two pre-programmed frequencies. |
Pinout & Package
6-lead ceramic VFQFN package (5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, CD suffix); surface-mount, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VC) | VCXO Control Voltage Input | Analog tuning input (0–VCC); sets output frequency within programmed pull range; impedance = 500 kΩ. |
| 2 (FSEL) | Frequency Select Input | LVTTL/LVCMOS logic input with internal 50 kΩ pulldown; selects between two factory-programmed frequencies. |
| 3 (VEE) | Negative Power Supply | Ground reference for LVPECL outputs; must be connected to system ground (0 V). |
| 4 (Q), 5 (nQ) | Differential LVPECL Outputs | Complementary clock outputs; require matched 50 Ω terminations to VCC – 2 V for proper common-mode bias. |
| 6 (VCC) | Positive Power Supply | Single supply input (2.5 V or 3.3 V); powers core and output drivers; bypassing required per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-frequency selection | Hardware-switched (FSEL pin) between two factory-programmed frequencies - eliminates need for external reconfiguration logic. |
| FemtoClock® NG PLL | Fractional-N synthesis with delta-sigma noise shaping enables <0.5 ps phase jitter and fine frequency resolution (≤218 Hz). |
| Programmable VCXO pull range | Factory-set from ±12.5 ppm to ±787.5 ppm; allows precise loop bandwidth tuning in PLL-based clock recovery systems. |
| Low-noise 114.285 MHz crystal | 3rd-overtone fundamental crystal reduces close-in phase noise; enables robust jitter performance across full output range. |
| Industrial temperature support | Validated operation from -40°C to +85°C with guaranteed specs - suitable for outdoor small cells and central office line cards. |
Applications
| Wireless Base Station Transceivers | Optical Transport Network (OTN) Line Cards |
|---|---|
Use Scenario: Synchronizing ADC/DAC sampling clocks and digital up/down-conversion stages in LTE/5G massive MIMO RF units. IC Role / Device Role / Timing Role: Dual-frequency VCXO providing switchable local oscillator reference for multi-band front-end calibration and channelization. Use Value: Enables rapid band-switching without clock PLL relock delay; 0.46 ps jitter preserves EVM in 256-QAM transmission. |
Use Scenario: Generating synchronous 622.08 MHz and 1244.16 MHz clocks for OTU1/OTU2 framer and SERDES interfaces. IC Role / Device Role / Timing Role: Primary timing source for SONET/SDH and OTN transport layers requiring dual-rate deterministic jitter performance. Use Value: Meets GR-1244-CORE jitter generation limits; ±33 ppm total stability ensures holdover compliance during network sync loss. |
| Carrier-Grade Ethernet Switches | High-Speed Test Equipment Clock Modules |
Use Scenario: Delivering precise 156.25 MHz and 312.5 MHz clocks to multi-gigabit PHYs and packet buffer controllers. IC Role / Device Role / Timing Role: Low-jitter, dual-output timing engine for IEEE 1588 boundary clock and PTP grandmaster synchronization. Use Value: Sub-picosecond phase jitter minimizes timestamp uncertainty; FSEL toggling supports dynamic rate adaptation in 10G/25G/100G ports. |
Use Scenario: Providing calibrated, switchable reference clocks for bit error ratio testers (BERTs) and high-speed oscilloscopes. IC Role / Device Role / Timing Role: Programmable VCXO used as traceable, low-phase-noise stimulus source in automated test system calibration. Use Value: Factory-programmed frequencies eliminate manual tuning; ±20 ppm stability ensures measurement repeatability across lab environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-frequency VCXO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5338A-B-GM | Quad-output, I²C-programmable clock generator; no built-in crystal; higher integration but requires external XO. | Used where multiple synchronized clocks (up to 4) and flexible format conversion (LVDS/LVPECL/LVCMOS) are needed. | Select when system-level clock tree flexibility outweighs single-device simplicity; not drop-in due to different interface and footprint. |
| 8N3SV78EC-0012CDI | Single-frequency LVPECL VCXO (not dual); same CD package, same FemtoClock NG platform, but lacks FSEL switching capability. | Suitable for fixed-rate applications like PCIe Gen3 reference clocks where only one stable frequency is required. | Choose only if dual-frequency switching is unnecessary; shares pinout and layout but cannot replace 8N3DV85FC-0164CDI's FSEL function. |
Compared with Si5338A-B-GM and 8N3SV78EC-0012CDI, the 8N3DV85FC-0164CDI uniquely delivers hardware-switched dual-frequency operation in a self-contained ceramic VCXO - eliminating external configuration, reducing BOM count, and guaranteeing sub-ps jitter without software overhead.
Availability
8N3DV85FC-0164CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networks, and carrier-grade Ethernet switches requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-grade timing performance.
Supply support for 8N3DV85FC-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
Renesas Electronics Corporation (formerly IDT) is a global semiconductor leader specializing in analog, mixed-signal, and timing solutions, with deep expertise in high-performance clock generation and synchronization.
The 8N3DV85FC-0164CDI belongs to the FemtoClock® NG VCXO product line, engineered specifically for carrier-class telecom and wireless infrastructure applications demanding ultra-low jitter, dual-frequency agility, and extended temperature reliability.
FAQ
What is the factory-programmed frequency pair for 8N3DV85FC-0164CDI?
The 8N3DV85FC-0164CDI is factory-programmed with two specific frequencies determined by its order code "0164". Per IDT's ordering documentation, "0164" corresponds to default frequencies of 156.25 MHz and 122.88 MHz - both within the supported 15.476–866.67 MHz band. These values are permanently stored in on-chip ROM and cannot be altered in the field. The 8N3DV85FC-0164CDI delivers these frequencies with guaranteed 218 Hz resolution and ±20 ppm total stability.
Does 8N3DV85FC-0164CDI support 2.5 V and 3.3 V supplies simultaneously?
No, the 8N3DV85FC-0164CDI operates from a single supply voltage - either 2.5 V ±5% or 3.3 V ±5%, as defined by its option code (K = 3.3 V, L = 2.5 V). The 8N3DV85FC-0164CDI does not support dual-supply operation. Its VCC pin must be connected to one of those voltages, and all DC/AC characteristics (including VOH/VOL, current draw, and phase jitter) are specified separately for each supply condition. Mixing supplies will violate absolute maximum ratings and cause functional failure.
How is the VCXO pull range configured for 8N3DV85FC-0164CDI?
The VCXO pull range for 8N3DV85FC-0164CDI is factory-programmed and fixed per order code; it is not user-adjustable. For part number 8N3DV85FC-0164CDI, the "C" in the option field indicates ±50 ppm nominal pull range (with tolerance depending on option code K/L). This value is stored in internal configuration registers and defines the frequency deviation achievable via the VC pin (0–VCC). The 8N3DV85FC-0164CDI's oscillator gain (KV) is also set during programming - 7.57–477.27 ppm/V at 3.3 V - ensuring predictable tuning slope across temperature.
Can 8N3DV85FC-0164CDI drive AC-coupled LVPECL loads?
Yes, the 8N3DV85FC-0164CDI can drive AC-coupled LVPECL loads, but DC biasing must be externally restored at the receiver side. The 8N3DV85FC-0164CDI's LVPECL outputs (Q/nQ) are designed for DC-coupled termination to VCC – 2 V. When AC coupling is used, a Thevenin or Thévenin-equivalent bias network (e.g., two 84 Ω resistors to VCC and ground) must be added at the load to re-establish the correct common-mode voltage (~VCC – 1.3 V). Failure to do so results in degraded duty cycle, increased jitter, and potential receiver malfunction.
What is the startup time and frequency settling behavior of 8N3DV85FC-0164CDI?
The 8N3DV85FC-0164CDI has a typical power-up startup time of 10 ms (tSTARTUP) and a frequency settling time of 1 ms (tSET) after an FSEL transition. During tSET, the PLL relocks to the newly selected frequency register without glitch or runt pulses - critical for hitless switching in telecom systems. This behavior is enabled by the dedicated configuration registers and fast-locking FemtoClock® NG PLL architecture. The 8N3DV85FC-0164CDI maintains continuous output during FSEL transitions, avoiding clock interruption that could disrupt downstream logic.
8N3DV85FC-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, 312.5MHz
- Voltage - Supply:
- 2.375V ~ 2.625V
- Current - Supply:
- 120 mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-CLCC (7x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
8N3DV85FC-0164CDI FAQ
1.How can I place an order for 8N3DV85FC-0164CDI through Aetrix?
Please submit a Request for Quotation (RFQ) for 8N3DV85FC-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 8N3DV85FC-0164CDI reliable?
The price and inventory of 8N3DV85FC-0164CDI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N3DV85FC-0164CDI is usually 5 days.
3.What payment methods are accepted for 8N3DV85FC-0164CDI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N3DV85FC-0164CDI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8N3DV85FC-0164CDI?
8N3DV85FC-0164CDI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8N3DV85FC-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 8N3DV85FC-0164CDI?
For technical support, including 8N3DV85FC-0164CDI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N3DV85FC-0164CDI requirements.
6.How does Aetrix verify that 8N3DV85FC-0164CDI is sourced from the original manufacturer or authorized distributors?
All 8N3DV85FC-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 8N3DV85FC-0164CDI meets industry standards.
7.What is the process for return or replacement of 8N3DV85FC-0164CDI?
All 8N3DV85FC-0164CDI units undergo pre-shipment inspection (PSI). If there is an issue with 8N3DV85FC-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 8N3DV85FC-0164CDI part is unused and in its original packaging.
Return procedure for 8N3DV85FC-0164CDI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
8N3DV85FC-0164CDI Tags
-
NE555DR
Texas Instruments
-
SA555DR
Texas Instruments
-
NA555DR
Texas Instruments
-
SE555DR
Texas Instruments
-
NE555P
Texas Instruments
-
CD4541BM96
Texas Instruments
-
CD4541BE
Texas Instruments
-
TLC555QDR
Texas Instruments
-
TLC555IDR
Texas Instruments
-
TLC555QDRQ1
Texas Instruments
-
TPL5010DDCR
Texas Instruments
-
TLC555CP
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
