FCO-6C 2.0×1.6mm CMOS XO, 1.5–50MHz
SMD 2.0×1.6mm, SPXO
FEATURE
Product Description
FCO-6C — 2.0×1.6 mm CMOS Crystal Oscillator
Compact SMD XO for space-constrained designs. Ideal for WLAN/WiMax, mobile phones, DSC/HDTV, and set-top boxes. 1.8/2.5/3.3 V options with tri-state enable.
Summary (typical conditions): 25 ± 5 °C, 15 pF load, Vdd nominal. For exact limits, refer to the detailed table and the datasheet.
Supply options: samples for validation, volume production, and custom frequency/stability programs.
Key Features
- Ultra-compact SMD package (typ. 2.05 × 1.65 × 0.75 mm)
- CMOS output with tight symmetry (45–55%) — see crystal oscillator parameters
- Supply choices: 1.8 V / 2.5 V / 3.3 V
- Tri-state enable/disable (Pin 1) — see how crystal oscillators work
- RMS phase jitter: 1.0 ps (12 kHz–20 MHz), period jitter pk: 40 ps — for system impact, see oscillator electronics applications
- Fast start-up (≤ 2 ms)
Key Specs
At-a-glance summary for quick evaluation (confirm with datasheet for your frequency, voltage and temperature grade).
| Frequency Range | 1.5–50 MHz (standard: 24 MHz, 26 MHz) |
|---|---|
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V |
| Output | CMOS, 15 pF load |
| Enable / Disable | Tri-state (Pin 1), Hi-Z when disabled |
| Duty Cycle | 45–55% |
|---|---|
| Start-up Time | ≤ 2 ms |
| Phase Jitter | 1.0 ps RMS (12 kHz–20 MHz) |
| Package | 2.05 × 1.65 × 0.75 mm (typ.) |
Applications
FCO-6C is used where board area is limited but clock quality still matters. Low RMS jitter and clean CMOS edges support reliable digital interfaces and RF baseband clocking.
- WLAN / WiMax modules — jitter margin helps maintain BER in high-speed links
- Mobile phones and tablets — small footprint enables dense layouts
- DSC / HDTV — stable clocking supports audio/video timing
- Oscillator clock applications overview
- Set-top boxes — tight duty cycle helps downstream logic meet setup/hold
- Networking & storage — stable clocks reduce packet/PHY timing stress
- 5G telecom subsystems — low-jitter clocks are critical for RF/DSP timing budgets
- Networking & storage timing
More use cases: Oscillator in 5G telecom, Using a 16 MHz oscillator, Test & measurement timing.
Detailed Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Frequency Range | F | 1.5 | — | 50 | MHz | Standard: 24, 26 MHz available |
| Supply Voltage | Vdd | — | 1.8 / 2.5 / 3.3 | — | V | CMOS output |
| Current (15 pF load) | Icc | — | — | 15 | mA | Max |
| Standby Current | Icc(ST) | — | — | 10 | µA | Disable = tri-state |
| Output Load | CL | — | 15 | — | pF | CMOS |
| Output High | VoH | 0.9×Vdd | — | — | V | CMOS |
| Output Low | VoL | — | — | 0.1×Vdd | V | CMOS |
| Enable (Pin 1) | VIH | 0.7×Vdd | — | — | V | Output enabled |
| Disable (Pin 1) | VIL | — | — | 0.3×Vdd | V | Output high-Z |
| Duty Cycle | TH/T | 45 | — | 55 | % | CMOS, 50% ±5% |
| Rise/Fall Time (1.5 ≤ F < 20 MHz) | Tr/Tf | — | — | 5 / 4 | ns | @10–90%, 15 pF |
| Rise/Fall Time (20 ≤ F < 50 MHz) | Tr/Tf | — | — | 4 / 3 | ns | @10–90%, 15 pF |
| Period Jitter (pk) | — | — | — | 40 | ps | Typical |
| RMS Phase Jitter | PJ | — | — | 1.0 | ps | 12 kHz–20 MHz |
| Start-up Time | Tosc | — | — | 2 | ms | Max |
| Aging (first year @25 °C) | — | — | ±3 | — | ppm/yr | Typical |
Test conditions unless otherwise stated: 25 ± 5 °C, RH 40–70%.
Frequency Stability Options vs. Temperature
| Operating Temperature | ±20 ppm | ±25 ppm | ±50 ppm |
|---|---|---|---|
| −20 ~ +70 °C | Available | Available | Available |
| −40 ~ +85 °C | Conditional | Conditional | Available |
| −40 ~ +105 °C | Not available | Conditional | Available |
| −40 ~ +125 °C | Not available | Not available | Conditional |
Stability is inclusive of calibration @25 °C, operating temperature range, input voltage/load variation, aging (1st year), shock and vibration.
Design & Layout Guidelines
- Place a 0.1 µF bypass capacitor as close as possible between Vdd and GND to ensure optimal oscillator performance — see Pierce crystal oscillator layout tips.
- Keep the output trace short and routed over a continuous ground reference to minimize jitter and EMI pickup.
- Observe recommended CMOS load (15 pF) for specified timing performance.
Ordering Code / Options
Model: FCO-6C — Frequency: xx.xxxx MHz — Vdd: 1.8 V / 2.5 V / 3.3 V — Symmetry: 45–55%
Selection Path / Upgrade Options
- Start with the family overview: XO clock oscillator family (industrial/automotive)
- Need general guidance? Crystal-controlled oscillator (XO) overview
- For jitter/phase-noise interpretation: What is a clock oscillator? and start-up time considerations
Note: RFQ-based pricing and lead time depend on frequency, stability, voltage option, temperature grade and quantity.
Documents & Downloads
Datasheet
Download the FCO-6C datasheet for electrical limits, recommended test conditions, and ordering details.
Package / Outline
Use the outline for footprint and keep-out planning (confirm latest revision in the datasheet).
Related Resources
Knowledge (News)
- What is a clock oscillator?
- How a crystal-controlled oscillator works
- How does a quartz oscillator work?
- Pierce oscillator tips (layout & basics)
- Barkhausen criterion for oscillators
- Start-up time in crystal oscillators
- Crystal oscillator parameters explained
- Oscillator electronics applications
Applications
- Oscillator clock applications
- Networking & storage timing
- Oscillator in 5G telecom
- Test & measurement timing
Product
Frequently Asked Questions
What supply voltages are available?
1.8 V, 2.5 V and 3.3 V options.
How do I use the tri-state enable?
Drive Pin 1 HIGH (≥ 0.7 × Vdd) to enable the output; LOW (≤ 0.3 × Vdd) to disable. The output becomes high-impedance (Hi-Z) when disabled.
What is the recommended decoupling?
Place a 0.1 µF bypass capacitor close to the device between Vdd and GND.
What are the standard frequencies?
Common standard frequencies include 24 MHz and 26 MHz. Contact us for other frequencies.
Do you offer samples and customization?
Yes. Samples are available for validation, and we support custom frequency/voltage/stability options for volume programs.
What is the MOQ and lead time?
MOQ and lead time depend on frequency/option and quantity. Send your target spec and quantity to receive an RFQ and schedule.
Do you provide a price list?
We do not publish a fixed price list. Pricing is RFQ-based and depends on frequency, stability, temperature grade and quantity.
Can you provide test reports and quality documents?
Yes. We can provide standard quality documentation and, when required, test reports aligned to your specification and sampling plan.
Quality & Compliance
For application engineering support (layout, clock tree, jitter budgeting), contact our technical team via the support form.
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