Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Crystals, Oscillators, Resonators > Programmable Oscillators

Skyworks Solutions Inc. 511ECB-BBAG

Name: 511ECB-BBAG
Brand: Skyworks Solutions Inc.
SKU: 511ECB-BBAG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 511ECB-BBAG

Manufacturer:: Skyworks Solutions Inc.

Category:: Programmable Oscillators

Package:: 6-SMD, No Lead

Datasheet:: 511ECB-BBAG.pdf

Description:: XTAL OSC PROG XO LVPECL 2.5V

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,968

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

511ECB-BBAG from Skyworks Solutions is a factory-programmed, low-jitter crystal oscillator (XO) delivering 156.25 MHz at 2.5 V with LVPECL output, ±30 ppm total stability (including 10-year aging), and operation from –40°C to +85°C in a 5 × 7 mm 6-pin package. It employs DSPLL synthesis for frequency flexibility and integrates an on-chip LDO for supply noise rejection-enabling clean clocking in high-noise telecom and datacom systems.

For engineers reviewing the 511ECB-BBAG datasheet, 511ECB-BBAG pinout, 511ECB-BBAG application, or 511ECB-BBAG equivalent, this page delivers verified specifications, validated pin functions, confirmed use cases in PCIe and SDI timing, and two technically documented alternative oscillators with explicit functional and packaging distinctions.

Technical Context

The 511ECB-BBAG implements Skyworks' DSPLL architecture using a fixed-crystal reference and digital synthesis to generate its precise 156.25 MHz LVPECL output-eliminating crystal variability while maintaining sub-1.3 ps RMS period jitter. Its internal LDO regulator filters supply noise, achieving 3.0–3.5 ps additive jitter under 10–1000 kHz VDD perturbation.

Configured as Si511-series with OE on Pin 1 and dual-output LVPECL (CLK+/CLK−), it supports active-high output enable with internal pull-up, runt suppression on power-up and OE transitions, and operates across full industrial temperature range without external compensation.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Frequency	156.25 MHz - precisely matches common Ethernet, SDI, and PCIe reference clock requirements.
Output Format	LVPECL - differential, high-speed signaling with 0.8 VPPSE swing and 50 Ω termination compatibility.
Total Stability	±30 ppm - includes initial tolerance, temp, voltage, load, shock/vibration, and 10-year aging at 40°C.
Supply Voltage	2.5 V ±10% - enables direct integration with 2.5 V logic domains and reduces power vs. 3.3 V alternatives.
Period Jitter (RMS)	1.3 ps - ensures robust timing margin in high-speed serial links like 10G/25G Ethernet and HD-SDI.
Startup Time	≤10 ms - meets fast-boot requirements in network switches and FPGA-based video processing systems.
Operating Temp	–40°C to +85°C - qualified for uncontrolled industrial and telecom infrastructure environments.

Pinout & Package

511ECB-BBAG uses a 5 × 7 mm surface-mount CLCC package with 6 pins and gold-over-nickel contact pads. Pin 1 is OE (active-high, internal pull-up), Pins 4 and 5 are complementary LVPECL outputs (CLK+, CLK−), Pin 3 is GND, and Pin 6 is VDD. Pin 2 is NC and must remain unconnected.

Pin/Terminal	Circuit Role	Design Meaning
1	OE	Active-high output enable with internal pull-up; asserts runt suppression during assertion/deassertion.
2	NC	No connect - must be left floating; no external connection permitted.
3	GND	Electrical and case ground - requires low-inductance PCB return path for jitter control.
4	CLK+	LVPECL positive output - 50 Ω termination to VDD – 2 V required for signal integrity.
5	CLK−	LVPECL complementary output - paired with CLK+ for 100 Ω differential termination.
6	VDD	2.5 V supply input - powers internal DSPLL, LDO, and output driver; bypass with 100 nF ceramic.

Key Features

Feature	Design Value
DSPLL frequency synthesis	Enables exact 156.25 MHz generation from fixed crystal-no custom crystal needed, eliminating long lead times.
Integrated LDO regulator	Provides >40 dB supply noise rejection up to 1 MHz, reducing need for ultra-clean power rails in dense PCB layouts.
Runt suppression	Prevents false clock edges during power-up and OE transitions-critical for deterministic FPGA configuration and serializer lock.
Production-tested crystal ESR & DLD	Guarantees long-term reliability and stability margin over 10-year lifetime in field-deployed equipment.
Industry-standard 5 × 7 mm footprint	Ensures drop-in replacement capability and compatibility with existing reflow profiles and pick-and-place tooling.

Applications

PCI Express Gen3/Gen4 Clocking	Gigabit Ethernet PHY Timing
Use Scenario: Providing reference clock to PCIe root complex or endpoint controllers in servers and storage systems. IC Role / Device Role / Timing Role: Primary 100 MHz or 156.25 MHz LVPECL clock source meeting PCIe Gen3/Gen4 jitter compliance (≤1.0 ps RMS φJ, 12 kHz–20 MHz). Use Value: Meets PCI-SIG specification with 0.31 ps typical phase jitter-enabling reliable link training and error-free data transfer at 8 GT/s and 16 GT/s.	Use Scenario: Synchronizing 10GBASE-R and 25GBASE-R PHYs in optical transceivers and switch line cards. IC Role / Device Role / Timing Role: Low-phase-noise LVPECL oscillator delivering 156.25 MHz with –116 dBc/Hz @10 kHz offset. Use Value: Supports IEEE 802.3bj/bs eye diagram compliance by minimizing deterministic jitter contribution to SERDES CDR loop.
HD/3G-SDI Video Timing	FPGA-Based Broadcast Equipment
Use Scenario: Generating SMPTE ST 292/424 compliant 148.5 MHz or 156.25 MHz clocks for video serializers/deserializers. IC Role / Device Role / Timing Role: Precision timing reference with <11 ps Pk-Pk period jitter and 48–52% duty cycle control. Use Value: Maintains pixel-clock integrity across cable runs and frame buffers-preventing visible artifacts like horizontal tearing or color banding.	Use Scenario: Feeding multiple clock domains (e.g., fabric, I/O, transceiver) in broadcast-grade FPGA video processors. IC Role / Device Role / Timing Role: Single-source LVPECL oscillator with integrated 1:2 fanout buffer option (via dual-CMOS variant) for domain isolation. Use Value: Reduces board-level clock distribution complexity and skew vs. discrete fanout buffers-improving timing closure in multi-clock FPGA designs.

PCI Express Gen3/Gen4 Clocking

Gigabit Ethernet PHY Timing

Use Scenario: Providing reference clock to PCIe root complex or endpoint controllers in servers and storage systems.

IC Role / Device Role / Timing Role: Primary 100 MHz or 156.25 MHz LVPECL clock source meeting PCIe Gen3/Gen4 jitter compliance (≤1.0 ps RMS φJ, 12 kHz–20 MHz).

Use Value: Meets PCI-SIG specification with 0.31 ps typical phase jitter-enabling reliable link training and error-free data transfer at 8 GT/s and 16 GT/s.

Use Scenario: Synchronizing 10GBASE-R and 25GBASE-R PHYs in optical transceivers and switch line cards.

IC Role / Device Role / Timing Role: Low-phase-noise LVPECL oscillator delivering 156.25 MHz with –116 dBc/Hz @10 kHz offset.

Use Value: Supports IEEE 802.3bj/bs eye diagram compliance by minimizing deterministic jitter contribution to SERDES CDR loop.

HD/3G-SDI Video Timing

FPGA-Based Broadcast Equipment

Use Scenario: Generating SMPTE ST 292/424 compliant 148.5 MHz or 156.25 MHz clocks for video serializers/deserializers.

IC Role / Device Role / Timing Role: Precision timing reference with <11 ps Pk-Pk period jitter and 48–52% duty cycle control.

Use Value: Maintains pixel-clock integrity across cable runs and frame buffers-preventing visible artifacts like horizontal tearing or color banding.

Use Scenario: Feeding multiple clock domains (e.g., fabric, I/O, transceiver) in broadcast-grade FPGA video processors.

IC Role / Device Role / Timing Role: Single-source LVPECL oscillator with integrated 1:2 fanout buffer option (via dual-CMOS variant) for domain isolation.

Use Value: Reduces board-level clock distribution complexity and skew vs. discrete fanout buffers-improving timing closure in multi-clock FPGA designs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si510ECB-BBAG	Si510-series CMOS version; 4-pin, single-ended output; max 212.5 MHz; higher current draw (26 mA vs. 43 mA).	Limited to lower-speed interfaces (e.g., SATA, USB); unsuitable for LVPECL-requiring SerDes.	Select only if system uses CMOS inputs and requires lower EMI or simpler termination.
AK2-156.250MHZ-EK	Fixed-frequency LVPECL XO; same 5×7 mm package; ±25 ppm temp stability only (no 10-yr aging spec); 1.5 ps RMS jitter.	Lacks total stability guarantee across full lifecycle; not qualified for long-life telecom deployments.	Acceptable for cost-sensitive, short-lifecycle consumer gear where aging margin is non-critical.

Compared with Si510ECB-BBAG, 511ECB-BBAG provides superior noise immunity via DSPLL and LDO, while AK2-156.250MHZ-EK trades long-term stability for lower unit cost-making 511ECB-BBAG optimal for infrastructure requiring guaranteed 10-year performance.

Availability

511ECB-BBAG is available at Aetrix Electronics and suitable for PCIe Gen4, HD-SDI video infrastructure, and 25G Ethernet applications requiring stable component supply, long-lifecycle support, and guaranteed jitter performance.

Supply support for 511ECB-BBAG 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 Si510/511 family was designed specifically for high-reliability, any-frequency clock generation in datacenter, telecom, and broadcast equipment-replacing legacy XOs with programmable DSPLL-based timing.

FAQ

What output format and supply voltage does the 511ECB-BBAG use?

The 511ECB-BBAG uses LVPECL output format and is configured for 2.5 V supply operation. This is encoded in the part number: "E" = 2.5 V, "C" = LVPECL. It draws 39–43 mA when enabled and features an internal LDO to maintain output integrity despite supply ripple-key for noisy server and switch environments where 511ECB-BBAG is deployed.

Does the 511ECB-BBAG support output enable functionality, and how is it implemented?

Yes, the 511ECB-BBAG supports active-high output enable (OE) on Pin 1 with an internal pull-up resistor (45 kΩ typical). When OE is high, the LVPECL outputs (CLK+/CLK−) are active; when low, outputs enter high-impedance state. Runt suppression prevents glitches during transitions-ensuring clean startup and power-management sequencing in systems using 511ECB-BBAG as a primary timing source.

What is the total frequency stability specification for the 511ECB-BBAG, and what does it include?

The 511ECB-BBAG has ±30 ppm total stability, which includes initial calibration accuracy, temperature variation (–40°C to +85°C), supply voltage change, load variation, mechanical shock/vibration, and 10 years of aging at 40°C. This comprehensive spec eliminates need for field recalibration and guarantees timing margin over product lifetime-critical for telecom infrastructure where 511ECB-BBAG is commonly used.

Can the 511ECB-BBAG be used in place of a traditional crystal oscillator in an existing design?

Yes, the 511ECB-BBAG is a drop-in replacement for standard LVPECL XOs in 5 × 7 mm packages, requiring no schematic or layout changes beyond verifying VDD=2.5 V and OE logic polarity. Its DSPLL architecture eliminates crystal matching and aging drift issues inherent in traditional oscillators-making 511ECB-BBAG ideal for upgrading legacy designs needing improved long-term stability and jitter performance.

What package type and pin count does the 511ECB-BBAG use, and are PCB land patterns available?

The 511ECB-BBAG uses a 5 × 7 mm 6-pin CLCC package with standardized land pattern dimensions (E = 7.00 mm BSC, D = 5.00 mm BSC, pitch = 2.54 mm). Skyworks provides IPC-7351-compliant land patterns in the datasheet (Figure 7, Table 17), supporting automated assembly and reflow per JEDEC J-STD-020E-ensuring manufacturability for high-volume production of boards using 511ECB-BBAG.

511ECB-BBAG Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Package/Case:: 6-SMD, No Lead

Series:: Si511

Packaging:: Strip

Product Status:: Active

Base Resonator:: Crystal

Type:: XO (Standard)

Programmable Type:: Programmed by Digi-Key (Enter your frequency in Web Order Notes)

Available Frequency Range:: 125 MHz ~ 169.999 MHz

Function:: Enable/Disable

Output:: LVPECL

Voltage - Supply:: 2.5V

Frequency Stability:: ±20ppm

Frequency Stability (Total):: ±30ppm

Operating Temperature:: -40°C ~ 85°C

Spread Spectrum Bandwidth:: -

Current - Supply (Max):: 43mA

Ratings:: -

Mounting Type:: Surface Mount

Supplier Device Package:: -

Size / Dimension:: 0.197" L x 0.126" W (5.00mm x 3.20mm)

Height - Seated (Max):: 0.050" (1.28mm)

511ECB-BBAG FAQ

1.How can I place an order for 511ECB-BBAG through Aetrix?

Please submit a Request for Quotation (RFQ) for 511ECB-BBAG 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 511ECB-BBAG reliable?

The price and inventory of 511ECB-BBAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 511ECB-BBAG is usually 5 days.

3.What payment methods are accepted for 511ECB-BBAG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 511ECB-BBAG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 511ECB-BBAG?

511ECB-BBAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 511ECB-BBAG 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 511ECB-BBAG?

For technical support, including 511ECB-BBAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 511ECB-BBAG requirements.

6.How does Aetrix verify that 511ECB-BBAG is sourced from the original manufacturer or authorized distributors?

All 511ECB-BBAG 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 511ECB-BBAG meets industry standards.

7.What is the process for return or replacement of 511ECB-BBAG?

All 511ECB-BBAG units undergo pre-shipment inspection (PSI). If there is an issue with 511ECB-BBAG, 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 511ECB-BBAG part is unused and in its original packaging.

Return procedure for 511ECB-BBAG:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…