Renesas 8N3DV85AC-0069CDI

Overview

8N3DV85AC-0069CDI 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 975–1300 MHz bands, 218 Hz frequency resolution, ±10 ppm initial accuracy at 25°C, and RMS phase jitter of 0.46 ps (12 kHz–20 MHz) at 622.08 MHz. It serves as a high-stability timing source in wireless infrastructure baseband units requiring rapid frequency switching between two preconfigured clock domains.

For engineers reviewing the 8N3DV85AC-0069CDI datasheet, 8N3DV85AC-0069CDI pinout, 8N3DV85AC-0069CDI application, or 8N3DV85AC-0069CDI equivalent, this page delivers verified technical context, exact pin functions, real-world jitter and stability specs, validated alternatives, and supply-chain support for telecom and networking hardware design.

Technical Context

The 8N3DV85AC-0069CDI integrates a 114.285 MHz fundamental-mode crystal with a fourth-generation FemtoClock® NG PLL featuring fractional-N feedback (MINT + MFRAC), a 2-bit pre-divider (P), and a 7-bit post-divider (N). Its architecture enables precise dual-frequency synthesis without external loop filters.

Frequency selection is controlled by the LVCMOS/LVTTL-compatible FSEL pin, which switches between two factory-programmed configurations in ≤1 ms. The VC input accepts 0–VCC tuning voltage, supporting programmable pull ranges from ±12.5 to ±787.5 ppm with oscillator gain configurable up to 630 ppm/V at 2.5 V.

Key Specifications

Pinout & Package

6-lead ceramic VFQFN package, 5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si510-PROG and 8N3SV78AC-0005CDI, the 8N3DV85AC-0069CDI uniquely combines factory-programmed dual frequencies, full VCXO tunability, LVPECL output, and ultra-low jitter - making it the only option for adaptive, high-performance telecom timing where both flexibility and precision are mandatory.

Availability

8N3DV85AC-0069CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networking, and high-speed data converter applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 8N3DV85AC-0069CDI 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 acquired Integrated Device Technology (IDT) in 2019 and now develops and manufactures high-performance timing, memory interface, and RF solutions for communications, data center, and industrial markets.

The 8N3DV85AC-0069CDI belongs to the FemtoClock® NG VCXO product line, designed specifically for carrier-grade wireless and optical infrastructure demanding sub-picosecond jitter, dual-frequency agility, and programmable stability.

FAQ

What is the factory-programmed frequency pair for 8N3DV85AC-0069CDI?

The 8N3DV85AC-0069CDI is programmed with two specific frequencies per order code: "0069" corresponds to 156.25 MHz and 125.00 MHz, as defined in IDT's FemtoClock NG Ceramic-Package XO and VCXO Ordering Product Information document. These values are permanently stored in ROM and cannot be modified in the field.

Does 8N3DV85AC-0069CDI support both 2.5 V and 3.3 V supply operation?

Yes, the 8N3DV85AC-0069CDI supports either 2.5 V ±5% or 3.3 V ±5% supply voltage, as confirmed in Tables 4A and 4B of the datasheet. Power supply current is 120–155 mA at 2.5 V and 130–160 mA at 3.3 V, with identical LVPECL output specifications across both rails.

How does the FSEL pin function on the 8N3DV85AC-0069CDI?

The FSEL pin on the 8N3DV85AC-0069CDI is an LVCMOS/LVTTL-compatible input that selects between the two factory-programmed frequencies: logic low (0) selects Frequency 0 (156.25 MHz), and logic high (1) selects Frequency 1 (125.00 MHz). Switching occurs within 1 ms, with no glitch or runt pulse observed on Q/nQ outputs.

What is the RMS phase jitter performance of 8N3DV85AC-0069CDI at its specified frequencies?

At 622.08 MHz, the 8N3DV85AC-0069CDI achieves 0.46 ps RMS phase jitter (12 kHz–20 MHz) and 0.47 ps (50 kHz–80 MHz). For its programmed frequencies (156.25 MHz and 125.00 MHz), measured jitter is 0.52–0.90 ps (125–500 MHz band) and 0.74–1.2 ps (15–125 MHz band), per Table 5A.

Is the 8N3DV85AC-0069CDI RoHS compliant and what is its package footprint?

Yes, the 8N3DV85AC-0069CDI is RoHS 6-compliant (lead-free) and housed in a 6-lead ceramic VFQFN package measuring 5.00 mm × 7.00 mm × 1.55 mm, with terminal pitch of 0.60 mm and body dimensions matching JEDEC MO-220 standard. Pin 1 index is marked by a dot on the top surface.