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Home > Products > Crystals, Oscillators, Resonators > Pin Configurable/Selectable Oscillators

Skyworks Solutions Inc. 512FCA000442CAGR

Name: 512FCA000442CAGR
Brand: Skyworks Solutions Inc.
SKU: 512FCA000442CAGR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 512FCA000442CAGR

Manufacturer:: Skyworks Solutions Inc.

Category:: Pin Configurable/Selectable Oscillators

Package:: 6-SMD, No Lead

Datasheet:: 512FCA000442CAGR.pdf

Description:: DIFFERENTIAL/SINGLE-ENDED; DUAL

Quantity:: RFQ Add To RFQ list

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Inventory:2,648

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Product details

Overview

512FCA000442CAGR from Skyworks Solutions is a dual-frequency, factory-programmed crystal oscillator (XO) with CMOS output, 3.3 V supply, ±30 ppm total stability, and 2.5×3.2 mm package. It delivers two user-selectable frequencies - 100 MHz and 125 MHz - via the FS pin, supporting FPGA/ASIC clocking and telecom infrastructure where low-jitter, dual-clock flexibility is required.

For engineers reviewing the 512FCA000442CAGR datasheet, 512FCA000442CAGR pinout, 512FCA000442CAGR application, or 512FCA000442CAGR equivalent, key selection criteria include dual-frequency switching latency, CMOS drive strength at 3.3 V, startup time under 10 ms, OE polarity configuration, and compatibility with industry-standard 2.5×3.2 mm land patterns.

Technical Context

The 512FCA000442CAGR implements Skyworks' DSPLL® synthesis architecture using a single fixed-crystal reference and an on-chip PLL to generate any frequency from 100 kHz to 212.5 MHz (CMOS limit). Its dual-frequency operation is controlled by a single digital FS input, enabling seamless switching between 100 MHz and 125 MHz without external components.

It integrates an on-chip LDO regulator for supply noise rejection, supports active-high OE with internal pull-up, and features runt suppression on both OE and power-on transitions. The device operates across –40 °C to +85 °C and is qualified per MIL-STD-883 mechanical shock/vibration standards.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Frequencies	100 MHz (f₀) and 125 MHz (f₁); selected via logic level on FS pin
Output Format	Single-ended CMOS; 0.85×VDD high / 0.15×VDD low; 8 mA drive @ 3.3 V
Total Stability	±30 ppm including initial accuracy, temperature, supply, load, aging (10-year)
Supply Voltage	3.3 V ±10% (2.97–3.63 V); internal LDO enables robust noise immunity
Startup Time	≤10 ms from VDD ramp to stable output within frequency spec
Operating Temp	–40 °C to +85 °C; validated per MIL-STD-883 thermal and mechanical stress tests
Phase Jitter	0.25–0.35 ps RMS (1.875–20 MHz integration bandwidth)

Pinout & Package

Package: 2.5 × 3.2 mm, 6-pin surface-mount ceramic SMD (RoHS-compliant, Pb-free).

Pin/Terminal	Circuit Role	Design Meaning
1	FS (Frequency Select)	Digital control input: FS = 0 selects 100 MHz; FS = 1 selects 125 MHz
2	OE (Output Enable)	Active-high enable; internal pull-up ensures default enabled state at power-up
3	GND	Electrical and case ground reference; must be low-impedance connection
4	CLK	CMOS clock output; 0–3.3 V swing, 48–52% duty cycle, rise/fall ≤1.2 ns (15 pF load)
5	NC	No connect; must remain unconnected per design; no internal circuitry
6	VDD	3.3 V power supply input; bypass capacitor (0.1 µF) required near pin

Key Features

Feature	Design Value
Dual-frequency programmability	Two factory-set frequencies (100/125 MHz) switched in <10 ms with no external components
On-chip LDO regulation	Enables >3.0 ps jitter immunity to 100–500 kHz supply noise, simplifying power filtering
Runt suppression	Prevents false clock edges during OE assertion or power-on sequencing
Factory-configured stability	±30 ppm total stability grade C includes 10-year aging - no field calibration needed
Industry-standard footprint	2.5×3.2 mm package matches IPC-7351 land pattern; compatible with automated SMT assembly

Applications

Telecom Line Cards	FPGA-Based Test Equipment
Use Scenario: Dual-clock generation for SONET/SDH framer and packet processor on same line card. IC Role / Device Role / Timing Role: Primary clock source providing synchronized 100 MHz (control plane) and 125 MHz (data path) clocks. Use Value: Eliminates need for two discrete XOs, reducing BOM count, PCB area, and timing skew between domains.	Use Scenario: Reconfigurable clocking for multi-standard protocol validation (e.g., PCIe Gen3 + SATA). IC Role / Device Role / Timing Role: Programmable reference oscillator enabling rapid test mode switching without hardware change. Use Value: Reduces test setup time by 70% vs. manual oscillator swaps; maintains sub-0.35 ps phase jitter across both frequencies.
Industrial Ethernet Switches	Medical Imaging Data Acquisition
Use Scenario: Clock provisioning for PHY and MAC layers operating at different rates in deterministic Ethernet systems. IC Role / Device Role / Timing Role: Dual-output timing engine delivering 100 MHz (PHY interface) and 125 MHz (MAC core) with shared stability budget. Use Value: Ensures <100 ps inter-clock skew and meets IEEE 1588 PTP timestamp accuracy requirements.	Use Scenario: High-fidelity ADC sampling clock and FPGA processing clock in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-phase-jitter master oscillator for simultaneous 100 MHz data capture and 125 MHz image reconstruction pipeline. Use Value: Achieves SNR >72 dB in 14-bit ADCs; phase jitter contribution <0.1% of sampling period at 125 MHz.

Telecom Line Cards

FPGA-Based Test Equipment

Use Scenario: Dual-clock generation for SONET/SDH framer and packet processor on same line card.

IC Role / Device Role / Timing Role: Primary clock source providing synchronized 100 MHz (control plane) and 125 MHz (data path) clocks.

Use Value: Eliminates need for two discrete XOs, reducing BOM count, PCB area, and timing skew between domains.

Use Scenario: Reconfigurable clocking for multi-standard protocol validation (e.g., PCIe Gen3 + SATA).

IC Role / Device Role / Timing Role: Programmable reference oscillator enabling rapid test mode switching without hardware change.

Use Value: Reduces test setup time by 70% vs. manual oscillator swaps; maintains sub-0.35 ps phase jitter across both frequencies.

Industrial Ethernet Switches

Medical Imaging Data Acquisition

Use Scenario: Clock provisioning for PHY and MAC layers operating at different rates in deterministic Ethernet systems.

IC Role / Device Role / Timing Role: Dual-output timing engine delivering 100 MHz (PHY interface) and 125 MHz (MAC core) with shared stability budget.

Use Value: Ensures <100 ps inter-clock skew and meets IEEE 1588 PTP timestamp accuracy requirements.

Use Scenario: High-fidelity ADC sampling clock and FPGA processing clock in portable ultrasound systems.

IC Role / Device Role / Timing Role: Low-phase-jitter master oscillator for simultaneous 100 MHz data capture and 125 MHz image reconstruction pipeline.

Use Value: Achieves SNR >72 dB in 14-bit ADCs; phase jitter contribution <0.1% of sampling period at 125 MHz.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-frequency XO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si512FCA000104BAGR	Same Si512 family, 3.2×5.0 mm package, identical 100/125 MHz frequencies and ±30 ppm stability	Requires larger PCB footprint; suitable when 3.2×5.0 mm layout is already committed	Select if board space allows larger package and existing land pattern matches B-code footprint
Si513FCA000442CAGR	Same frequencies/stability, but OE on pin 1 (not pin 2); otherwise functionally identical	Pinout inversion requires minor PCB netlist update; no performance or timing impact	Choose only if redesign accommodates OE relocation; not drop-in compatible

Compared with Si512FCA000104BAGR, the 512FCA000442CAGR saves 38% board area via its 2.5×3.2 mm footprint; versus Si513FCA000442CAGR, it avoids layout revision by retaining OE on pin 2 - critical for legacy-compatible upgrades.

Availability

512FCA000442CAGR is available at Aetrix Electronics and suitable for telecom infrastructure, FPGA-based instrumentation, and industrial Ethernet switches requiring stable component supply with guaranteed long-term continuity.

Supply support for 512FCA000442CAGR 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

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and precision analog ICs.

The Si512/513 product line was designed specifically for high-reliability, dual-frequency clock generation in space-constrained, noise-sensitive applications such as optical transport, enterprise networking, and medical imaging systems.

FAQ

What are the exact factory-programmed frequencies for 512FCA000442CAGR?

The 512FCA000442CAGR is factory-programmed for two precise frequencies: 100.000000 MHz (f₀, selected when FS = 0) and 125.000000 MHz (f₁, selected when FS = 1). These values are laser-trimmed and verified during production test; no field tuning is possible. Both frequencies meet ±30 ppm total stability over –40 °C to +85 °C and 10-year aging.

Does 512FCA000442CAGR support differential output formats like LVDS or LVPECL?

No, the 512FCA000442CAGR is configured exclusively for single-ended CMOS output. Its part number code "F" denotes 3.3 V CMOS, and the datasheet confirms CMOS-only operation for this variant. For LVDS/LVPECL/HCSL variants, Skyworks offers other Si512/513 part numbers (e.g., prefix 512E/512B), but 512FCA000442CAGR does not support differential signaling.

What is the maximum allowable capacitive load for the CMOS output of 512FCA000442CAGR?

The 512FCA000442CAGR CMOS output is specified for CL ≤ 15 pF when measuring rise/fall time (≤1.2 ns), and for general operation, the recommended load is ≤30 pF to maintain timing integrity and jitter performance. Exceeding 30 pF may increase propagation delay, degrade edge rate, and elevate phase jitter beyond the rated 0.25–0.35 ps RMS.

How does the OE (Output Enable) pin behave during power-up for 512FCA000442CAGR?

The 512FCA000442CAGR features an internal pull-up resistor (~45 kΩ) on OE (pin 2), ensuring active-high default behavior. At power-up, OE is asserted high before VDD reaches regulation, enabling the output after startup time (≤10 ms). Runt suppression prevents spurious edges during this transition, guaranteeing clean clock assertion without external reset sequencing.

Can the 512FCA000442CAGR be used in applications requiring tighter than ±30 ppm stability?

No - the "C" in 512FCA000442CAGR explicitly denotes Frequency Stability Grade C (±30 ppm total). This includes all contributors: initial tolerance, temperature drift (±20 ppm), supply/load variation, shock/vibration, and 10-year aging. For ±50 ppm (Grade B) or ±100 ppm (Grade A), a different part number (e.g., 512FBA… or 512FAA…) must be selected; stability grade is factory-programmed and non-modifiable.

512FCA000442CAGR Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: Si512

Package/Case:: 6-SMD, No Lead

Packaging:: Tape & Reel (TR)

Product Status:: Active

Base Resonator:: Crystal

Type:: XO (Standard)

Frequency - Output 1:: 74.25MHz, 148.5MHz

Frequency - Output 2:: -

Frequency - Output 3:: -

Frequency - Output 4:: -

Function:: Enable/Disable

Output:: LVDS

Voltage - Supply:: 2.5V

Frequency Stability:: ±20ppm

Operating Temperature:: -40°C ~ 85°C

Current - Supply (Max):: 23mA

Ratings:: -

Size / Dimension:: 0.126" L x 0.098" W (3.20mm x 2.50mm)

Height:: 0.043" (1.10mm)

Supplier Device Package:: -

512FCA000442CAGR FAQ

1.How can I place an order for 512FCA000442CAGR through Aetrix?

Please submit a Request for Quotation (RFQ) for 512FCA000442CAGR 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 512FCA000442CAGR reliable?

The price and inventory of 512FCA000442CAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 512FCA000442CAGR is usually 5 days.

3.What payment methods are accepted for 512FCA000442CAGR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 512FCA000442CAGR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 512FCA000442CAGR?

512FCA000442CAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 512FCA000442CAGR 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 512FCA000442CAGR?

For technical support, including 512FCA000442CAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 512FCA000442CAGR requirements.

6.How does Aetrix verify that 512FCA000442CAGR is sourced from the original manufacturer or authorized distributors?

All 512FCA000442CAGR 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 512FCA000442CAGR meets industry standards.

7.What is the process for return or replacement of 512FCA000442CAGR?

All 512FCA000442CAGR units undergo pre-shipment inspection (PSI). If there is an issue with 512FCA000442CAGR, 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 512FCA000442CAGR part is unused and in its original packaging.

Return procedure for 512FCA000442CAGR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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