Renesas 8N3SV75KC-0067CDI8

Overview

8N3SV75KC-0067CDI8 from Renesas Electronics is a factory-programmed LVPECL voltage-controlled crystal oscillator (VCXO) with fourth-generation FemtoClock® NG PLL synthesis, delivering programmable output frequencies from 15.476 MHz to 866.67 MHz and 975 MHz to 1,300 MHz at ≤218 Hz resolution, ±20 ppm total stability over -40°C to +85°C, and 0.44 ps RMS phase jitter (500–1300 MHz band), used in wireless infrastructure baseband timing and high-speed SerDes clocking.

For engineers reviewing the 8N3SV75KC-0067CDI8 datasheet, 8N3SV75KC-0067CDI8 pinout, 8N3SV75KC-0067CDI8 application, or 8N3SV75KC-0067CDI8 equivalent, key selection considerations include its 6-pin ceramic 5 mm × 7 mm LVPECL output architecture, factory-configured VCXO pull range and control polarity, OE-enabled differential output disable, and compatibility with 2.5 V/3.3 V supply rails in telecom-grade thermal environments.

Technical Context

The 8N3SV75KC-0067CDI8 integrates a 114.285 MHz fundamental-mode crystal oscillator driving a fractional-N PLL with 7-bit integer (MINT) and 18-bit fractional (MFRAC) feedback dividers, 2-bit pre-divider (P), and 7-bit post-divider (N), enabling precise frequency synthesis across two disjoint bands. Its VCO operates at 1950–2600 MHz before division.

Control is implemented via analog VC input (0–VCC, 500 kΩ impedance) with programmable oscillator gain (7.57–477.27 ppm/V at 3.3 V), and digital OE input (LVCMOS/LVTTL compatible) that places Q/nQ outputs into high-impedance state when low. The device uses internal pullup resistors (50 kΩ) on OE and supports 100% duty cycle tolerance (45–55%).

Key Specifications

Pinout & Package

6-lead ceramic VFQFN package, RoHS-compliant, 5.0 mm × 7.0 mm × 1.55 mm body (CD package), surface-mount, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 8N3SV75KC-0067CDI8, Si510-PROG offers broader programmability but lacks native LVPECL and >945 MHz support, while AK20E-010000 provides identical stability and footprint but zero tuning range - making it unsuitable for phase-locked loops or jitter-cleaning applications requiring VCXO behavior.

Availability

8N3SV75KC-0067CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networking, and high-speed SerDes clocking requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 8N3SV75KC-0067CDI8 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 delivering microcontrollers, analog power, and timing solutions for automotive, industrial, and communications markets.

The IDT8N3SV75 family was designed specifically for high-performance, frequency-programmable timing in telecom and datacom infrastructure, emphasizing low phase noise, wide tuning range, and industrial-grade reliability in compact ceramic packages.

FAQ

What is the factory-programmed output frequency of the 8N3SV75KC-0067CDI8?

The 8N3SV75KC-0067CDI8 is factory-programmed to 156.25 MHz, as indicated by the "0067" order code suffix per IDT's FemtoClock NG ordering documentation. This frequency is commonly used for Ethernet PHYs, CPRI interfaces, and SONET/SDH line cards. The device retains full VCXO functionality at this setting, allowing ±20 ppm tuning via the VC pin.

Does the 8N3SV75KC-0067CDI8 support both 2.5 V and 3.3 V supply rails?

Yes, the 8N3SV75KC-0067CDI8 supports either 2.5 V ±5% or 3.3 V ±5% supply voltage, with corresponding DC characteristics specified in Tables 4A–4D. The device automatically adapts LVPECL output levels (VOH/VOL) and current consumption to the applied VCC, enabling flexible integration into mixed-voltage systems without level shifters.

What is the absolute pull range (APR) programmed into the 8N3SV75KC-0067CDI8?

The 8N3SV75KC-0067CDI8 has a factory-programmed absolute pull range of ±20 ppm, consistent with its Option K designation (±20 ppm total stability). This APR is fixed and non-field-adjustable; the VC input tunes linearly across this range with oscillator gain calibrated to 7.57–477.27 ppm/V depending on VCC and configuration.

Can the 8N3SV75KC-0067CDI8 be used in place of a fixed-frequency XO?

Yes, the 8N3SV75KC-0067CDI8 can operate as a fixed-frequency XO by holding VC at VCC/2 (nominal tuning point), where its output remains stable at the programmed frequency (156.25 MHz) with ±20 ppm total stability. Unlike basic XOs, it retains full VCXO capability if future designs require dynamic frequency adjustment or jitter cleaning.

What termination is required for the LVPECL outputs of the 8N3SV75KC-0067CDI8?

The 8N3SV75KC-0067CDI8 LVPECL outputs (Q/nQ) require 50 Ω termination to VCC – 2 V. For 3.3 V operation, this is ~1.3 V; for 2.5 V, it approximates ground. Recommended topologies include Figure 1A/B (dual-resistor) for 3.3 V and Figure 2C (single 50 Ω to GND) for 2.5 V, per the datasheet's Application Information section.