FCO-7P-LE FASTXO Low EMI Oscillator (7.0×5.0mm, 16–40 MHz)
SMD 7.0×5.0mm, FASTXO, Low EMI Oscillator
FEATURE
Product Description
FCO-7P-LE FASTXO Low EMI Oscillator (7.0×5.0mm)
Low-EMI spread-spectrum SMD crystal oscillator for EMC-friendly clocking. Covers 16–40 MHz with typical 1.8V / 2.5V / 3.3V options, tri-state enable, and CMOS output (CL=15 pF).
Need a custom frequency, stability grade, or temperature option? Contact us and we’ll recommend a configuration for your platform.
Electrical limits and option availability depend on configuration. See the tables below for common specifications and stability-vs-temperature options.
Key Features
Detailed Feature List
- Package size: 7.0×5.0×1.4mm SMD
- Frequency range: 16–40 MHz
- Supply voltage (typ.): 1.8V / 2.5V / 3.3V
- Spread spectrum: center spread and down spread options
- Tri-state enable/disable (Pin 1 OE)
- CMOS output, CL=15 pF
- Duty cycle: 45%–55%
- Start-up time: up to 5 ms (0 to 90% Vdd)
- Aging: ±3 ppm/year (1st year @ 25°C)
Datasheet PDF: Download FCO-7P-LE FASTXO datasheet
Recommended Applications
- IP cameras and security systems
- LED driver modules
- Multimedia display equipment
- Portable medical devices
Spread-spectrum clocking is commonly used to mitigate harmonic peaks in systems with high-speed interfaces and switching power stages.
Electrical Specifications
Common specifications are shown below. Final limits and options depend on configuration.
| Parameter | Symbol | Min | Typ | Max | Units | Notes |
|---|---|---|---|---|---|---|
| Frequency Range | F | 16–40 | MHz | |||
| Supply Voltage (options) | Vdd | 1.8 / 2.5 / 3.3 | V | Typical options | ||
| Output Load (CMOS) | CL | - | 15 | - | pF | |
| Tri-State Enable (Pin 1 input high) | VIH | 70% Vdd | - | - | V | Enable |
| Tri-State Disable (Pin 1 input low) | VIL | - | - | 30% Vdd | V | Disable |
| Duty Cycle | TH/T | 45–55 | % | |||
| Start-up Time (0 to 90% Vdd) | Tosc | - | - | 5 | ms | Typical maximum |
| Aging (1st year @ 25°C) | ppm/yr | ±3 | ppm/yr | |||
Frequency stability typically includes calibration at 25°C, operating temperature range, input voltage variation, load variation, aging (1st year), shock, and vibration.
Spread Spectrum Options
Select a modulation profile based on your EMI target and timing budget.
| Spread Type | Common Options | Selection Notes |
|---|---|---|
| Down Spread | -2.00%, -1.50%, -1.00% | Preferred if the clock must not exceed nominal frequency. |
| Center Spread | ±1.00%, ±0.75%, ±0.50% | Balanced spreading above/below nominal; verify interface margin. |
Modulation carrier frequency is typically 20–52 kHz (configuration dependent).
Frequency Stability vs Temperature
Availability may vary by configuration. Contact us for the exact matrix for your target frequency and voltage.
| Operating Temperature Range | ±25 ppm | ±50 ppm |
|---|---|---|
| -20°C to +70°C | Common | Common |
| -40°C to +85°C | Common | Common |
| -40°C to +105°C | By request | Common |
| -40°C to +125°C | Limited | By request |
Package Dimension & Pin Assignment (7.0×5.0mm)
Pin Assignment
| Pin | Function | Notes |
|---|---|---|
| 1 | Tri-State (OE) | High = Enable, Low = Disable (tri-state output) |
| 2 | GND | Ground |
| 3 | Output | CMOS output |
| 4 | VDD | Supply (1.8V / 2.5V / 3.3V option) |
Layout tip: keep OE away from noisy nodes and prevent OE from floating during reset. Keep the output trace short and maintain a solid ground return.
Design Recommendations
- Place a 0.1 µF decoupling capacitor between Vdd and GND as close to the oscillator as possible to suppress noise and improve power integrity.
- Keep a continuous ground plane beneath the oscillator and along the output return path.
- If the output trace is long, consider series damping near the source and validate duty-cycle and edge-rate margins at the receiver.
- When tuning EMI, select spread type and percentage to balance peak reduction with timing budget.
FAQ
How does spread spectrum help reduce EMI?
Can you provide a custom frequency or stability?
Where can I download the datasheet?
Support
For availability, lead time, custom frequency, stability grades, or temperature options, contact our team:
Email: FCom@fujicrystal.com
Series Page: Low EMI Oscillator Family
Crystal Oscillators: Crystal Oscillators Overview
Disclaimer: This page summarizes typical features and common options. Final specifications depend on configuration and validation conditions.
Recommended Products
Online message
©Fuji Crystal (Hong Kong) Electronics Co., Ltd. All Rights Reserved. 粤ICP备2022101336号
©Fuji Crystal (Hong Kong) Electronics Co., Ltd. All Rights Reserved.
Online Message