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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Application Specific Clock/Timing

Analog Devices Inc. ADN2816ACPZ-500RL7

Name: ADN2816ACPZ-500RL7
Brand: Analog Devices Inc.
SKU: ADN2816ACPZ-500RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADN2816ACPZ-500RL7

Manufacturer:: Analog Devices Inc.

Category:: Application Specific Clock/Timing

Package:: 32-WFQFN Exposed Pad, CSP

Datasheet:: ADN2816ACPZ-500RL7.pdf

Description:: IC CLK/DATA REC 675MBPS 32-LFCSP

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Product details

Overview

ADN2816ACPZ-500RL7 from Analog Devices is a continuous-rate clock and data recovery (CDR) IC designed for high-speed serial receiver applications. It operates across 10 Mb/s to 675 Mb/s, meets all SONET jitter transfer/generation/tolerance requirements, features a patented delay- and phase-locked loop architecture, requires no external reference clock, and delivers LVDS clock/data outputs - deployed in SONET OC-1/-3/-12, Fibre Channel, and WDM transponder systems.

For engineers reviewing the ADN2816ACPZ-500RL7 datasheet, ADN2816ACPZ-500RL7 pinout, ADN2816ACPZ-500RL7 application, or ADN2816ACPZ-500RL7 equivalent, key selection criteria include guaranteed jitter performance at OC-12 (622.08 Mb/s), loss-of-lock detection with 250 ppm hysteresis, I²C-configurable coarse/fine data rate readback, and compatibility with CML input signals and LVDS output interfaces.

Technical Context

The ADN2816ACPZ-500RL7 implements a dual-loop architecture combining a voltage-controlled oscillator (VCO) for low-frequency jitter tracking and a voltage-controlled phase shifter for high-frequency jitter accommodation - eliminating jitter peaking by removing the zero from the closed-loop transfer function. Its frequency acquisition loop uses CF1/CF2 capacitor-based tuning to lock from 10 MHz to 675 Mb/s without reference assistance.

It supports optional REFCLK-assisted locking (10–160 MHz differential input), provides LVTTL LOL indication and SQUELCH control, and integrates on-chip 50 Ω CML termination with 2.5 V VREF. All specifications are validated over −40°C to +85°C ambient temperature with 3.3 V single-supply operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate Range	10 Mb/s to 675 Mb/s - supports SONET OC-1 (51.84 Mb/s), OC-3 (155.52 Mb/s), OC-12 (622.08 Mb/s), and associated FEC rates without reconfiguration.
Jitter Generation (OC-12)	0.003 UI rms / 0.026 UI p-p (12 kHz–5 MHz) - ensures minimal added timing uncertainty in regenerator/repeater stages.
Jitter Tolerance (OC-12)	1.0 UI p-p at 250 kHz - exceeds Telcordia GR-253-CORE mask, enabling robust operation under stressed optical link conditions.
Input Interface	CML differential inputs (PIN/NIN), 100 Ω internal termination, 0.2–2.0 V p-p swing - compatible with laser driver and limiting amplifier outputs.
Output Interface	LVD S differential clock/data outputs (CLKOUTP/N, DATAOUTP/N), 250–400 mV p-p swing, 100 Ω impedance - directly drives backplane or FPGA clock/data inputs.
Power & Package	366 mW typical at 622.08 Mb/s, 3.3 V supply; 5 mm × 5 mm 32-lead LFCSP with exposed thermal pad - enables compact, thermally efficient line-card designs.
Control Interface	I²C-compatible (400 kHz), 7-bit slave address configurable via SADDR5, registers for data rate readback, LOL configuration, and SQUELCH - allows real-time monitoring and system-level fault management.

Pinout & Package

ADN2816ACPZ-500RL7 is housed in a 5 mm × 5 mm, 32-lead lead-frame chip-scale package (LFCSP) with exposed thermal pad soldered to ground. The package supports high-density PCB layouts and efficient thermal dissipation in telecom line cards and optical modules.

Pin/Terminal	Circuit Role	Design Meaning
VCC (Pins 1, 2, 12, 18, 24, 31, 32)	Power supply input	Seven dedicated VCC pins distribute 3.3 V supply to limiting amplifier, VCO, FLL detector, output buffer, and phase detector blocks - reduces supply noise coupling and improves jitter performance.
VEE (Pins 8, 13, 17, 23, 30)	Ground reference	Five VEE pins provide separate ground returns for analog and digital sections - isolates sensitive PLL/VCO paths from I²C and output switching noise.
PIN / NIN (Pins 4, 5)	Differential CML data input	Internally terminated 50 Ω differential pair referenced to 2.5 V VREF - accepts industry-standard CML logic levels without external biasing or termination.
CLKOUTP / CLKOUTN (Pins 25, 26)	Differential recovered clock output	LVD S-compliant outputs deliver low-jitter, retimed clock synchronized to incoming data - used for clock distribution or as sampling reference in downstream logic.
DATAOUTP / DATAOUTN (Pins 28, 29)	Differential recovered data output	LVD S-compliant retimed data stream aligned to CLKOUTP/N - eliminates input jitter and enables error-free regeneration in cascaded optical links.
LOL (Pin 16)	Loss-of-lock indicator	LVTTL active-high signal asserts when VCO frequency error exceeds ±1000 ppm and deasserts within ±250 ppm - provides real-time lock status for system health monitoring.
SQUELCH (Pin 27)	Output disable control	LVTTL active-high input disables both CLKOUTP/N and DATAOUTP/N - prevents spurious outputs during initialization or fault conditions.
SCK / SDA (Pins 20, 21)	I²C interface	Standard two-wire serial interface for reading data rate, configuring LOL behavior, and enabling REFCLK mode - supports remote diagnostics and dynamic reconfiguration.

Key Features

Feature	Design Value
No-reference-clock operation	Autonomous frequency acquisition from 10 Mb/s to 675 Mb/s using internal VCO and CF1/CF2 capacitor tuning - eliminates need for external clock source and simplifies board design.
SONET-compliant jitter performance	Meets Telcordia GR-253-CORE jitter transfer (≤0.03 dB peaking), generation (≤0.026 UI p-p), and tolerance (≥1.0 UI p-p at 250 kHz) - certified for use in carrier-grade optical transport equipment.
Dual-loop jitter accommodation	Combined DLL (phase shifter) and PLL (VCO) architecture accommodates >2 UI of medium-frequency jitter while suppressing peaking - prevents hazardous jitter accumulation in multi-stage regenerators.
Configurable loss-of-lock detection	I²C-accessible static LOL mode (MISC[4]) and REFCLK-locked mode (CTRLA[0]) - enables flexible system-level fault logging and reference-assisted acquisition in mixed-rate environments.
Integrated CML input & LVDS output	On-die 50 Ω CML termination and 100 Ω LVDS drivers eliminate discrete termination resistors and level-shifters - reduces BOM count and layout complexity in high-speed serial interfaces.

Applications

SONET OC-12 Regenerator	Fibre Channel 1G/2G Receiver
Use Scenario: Re-timing degraded OC-12 (622.08 Mb/s) signals after long-haul fiber transmission with accumulated jitter and amplitude distortion. IC Role / Device Role / Timing Role: Clock and data recovery IC performing quantization, jitter filtering, and retiming - recovers clean clock and data from noisy NRZ input. Use Value: Delivers <0.026 UI p-p jitter generation and >1.0 UI p-p jitter tolerance at 250 kHz, meeting GR-253-CORE for carrier-class repeater deployment.	Use Scenario: Interfacing with short-reach Fibre Channel transceivers operating at 1.0625 Gb/s or 2.125 Gb/s in storage area networks. IC Role / Device Role / Timing Role: High-speed CDR converting CML input to LVDS clock/data outputs for ASIC/FPGA capture - handles variable data rates without manual reconfiguration. Use Value: Supports 10–675 Mb/s continuous range, enabling single-footprint support for FC-1G and FC-2G without hardware change.
WDM Transponder Line Card	SDI Video Signal Regeneration
Use Scenario: Recovering and retiming multiple wavelength channels in metro DWDM transponders where each channel may operate at different SONET rates. IC Role / Device Role / Timing Role: Autonomous CDR with I²C readback of coarse data rate (±10% accuracy) - identifies incoming rate and confirms lock status per channel. Use Value: Eliminates per-channel reference clocks and enables software-defined rate adaptation across OC-1/OC-3/OC-12, reducing component count and power per lane.	Use Scenario: Restoring SMPTE 259M SDI video signals (270 Mb/s) after cable runs exceeding 300 m, where intersymbol interference degrades eye opening. IC Role / Device Role / Timing Role: CDR restoring jittered and attenuated serial video data - recovers full-amplitude LVDS outputs for downstream video processing. Use Value: Achieves 2.5 UI p-p jitter tolerance at 25 kHz, preserving bit integrity in broadcast infrastructure with legacy coaxial cabling.

SONET OC-12 Regenerator

Fibre Channel 1G/2G Receiver

Use Scenario: Re-timing degraded OC-12 (622.08 Mb/s) signals after long-haul fiber transmission with accumulated jitter and amplitude distortion.

IC Role / Device Role / Timing Role: Clock and data recovery IC performing quantization, jitter filtering, and retiming - recovers clean clock and data from noisy NRZ input.

Use Value: Delivers <0.026 UI p-p jitter generation and >1.0 UI p-p jitter tolerance at 250 kHz, meeting GR-253-CORE for carrier-class repeater deployment.

Use Scenario: Interfacing with short-reach Fibre Channel transceivers operating at 1.0625 Gb/s or 2.125 Gb/s in storage area networks.

IC Role / Device Role / Timing Role: High-speed CDR converting CML input to LVDS clock/data outputs for ASIC/FPGA capture - handles variable data rates without manual reconfiguration.

Use Value: Supports 10–675 Mb/s continuous range, enabling single-footprint support for FC-1G and FC-2G without hardware change.

WDM Transponder Line Card

SDI Video Signal Regeneration

Use Scenario: Recovering and retiming multiple wavelength channels in metro DWDM transponders where each channel may operate at different SONET rates.

IC Role / Device Role / Timing Role: Autonomous CDR with I²C readback of coarse data rate (±10% accuracy) - identifies incoming rate and confirms lock status per channel.

Use Value: Eliminates per-channel reference clocks and enables software-defined rate adaptation across OC-1/OC-3/OC-12, reducing component count and power per lane.

Use Scenario: Restoring SMPTE 259M SDI video signals (270 Mb/s) after cable runs exceeding 300 m, where intersymbol interference degrades eye opening.

IC Role / Device Role / Timing Role: CDR restoring jittered and attenuated serial video data - recovers full-amplitude LVDS outputs for downstream video processing.

Use Value: Achieves 2.5 UI p-p jitter tolerance at 25 kHz, preserving bit integrity in broadcast infrastructure with legacy coaxial cabling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock and data recovery applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX3675ETA+T	Fixed-rate CDR (2.488 Gb/s only); no I²C interface; requires external reference clock for acquisition.	Limited to OC-48/STM-16 systems; lacks autonomous rate detection and diagnostic readback capability.	Select when operating exclusively at 2.488 Gb/s and reference clock is available; not suitable for multi-rate or unattended deployment.
LMH0384SQ/NOPB	SDI-specific CDR (270/360/540/1485 Mb/s); integrated cable equalizer; no SONET jitter compliance validation.	Optimized for broadcast video; does not meet GR-253-CORE jitter transfer/generation specs for telecom use.	Prefer for SMPTE-compliant video infrastructure; avoid in carrier-grade optical transport where SONET compliance is mandatory.

Compared with MAX3675ETA+T and LMH0384SQ/NOPB, the ADN2816ACPZ-500RL7 uniquely combines wide continuous-rate coverage (10–675 Mb/s), SONET-certified jitter performance, and I²C configurability - making it the only option qualified for multi-standard, unattended, carrier-class regenerator applications.

Availability

ADN2816ACPZ-500RL7 is available at Aetrix Electronics and suitable for SONET regenerators, Fibre Channel receivers, and WDM transponder line cards requiring stable component supply, long-term lifecycle support, and traceable sourcing for telecom infrastructure programs.

Supply support for ADN2816ACPZ-500RL7 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets since 1965.

The ADN2816ACPZ-500RL7 belongs to Analog Devices' Clock and Data Recovery product line, engineered specifically for carrier-grade optical transport equipment requiring autonomous, jitter-compliant signal regeneration across multiple SONET/SDH and datacom standards.

FAQ

What data rates does the ADN2816ACPZ-500RL7 support without external configuration?

The ADN2816ACPZ-500RL7 supports continuous data rates from 10 Mb/s to 675 Mb/s autonomously - including SONET OC-1 (51.84 Mb/s), OC-3 (155.52 Mb/s), and OC-12 (622.08 Mb/s) - with no external reference clock or register programming required. Its patented dual-loop architecture acquires and locks to any rate in this range using only the incoming data stream and the CF1/CF2 capacitor network.

Does the ADN2816ACPZ-500RL7 meet Telcordia GR-253-CORE jitter specifications?

Yes, the ADN2816ACPZ-500RL7 exceeds Telcordia GR-253-CORE jitter requirements for SONET OC-12: jitter transfer peaking ≤0.03 dB, jitter generation ≤0.026 UI p-p (12 kHz–5 MHz), and jitter tolerance ≥1.0 UI p-p at 250 kHz. These values are measured and specified in the official Rev. C datasheet across −40°C to +85°C.

How is loss-of-lock indicated on the ADN2816ACPZ-500RL7, and can it be configured?

The ADN2816ACPZ-500RL7 provides loss-of-lock status via Pin 16 (LOL), an LVTTL active-high output that asserts when VCO frequency error exceeds ±1000 ppm and deasserts within ±250 ppm. Through I²C register CTRLB[7], LOL can be configured as a static indicator (MISC[4] bit) that remains asserted until manually reset - enabling persistent fault logging in unattended systems.

What are the input and output electrical interfaces supported by the ADN2816ACPZ-500RL7?

The ADN2816ACPZ-500RL7 accepts CML differential inputs (PIN/NIN) with 50 Ω on-die termination referenced to 2.5 V VREF and delivers LVDS differential outputs (CLKOUTP/N, DATAOUTP/N) with 100 Ω output impedance and 250–400 mV p-p swing. It also supports optional differential REFCLK input (10–160 MHz) and LVTTL SQUELCH control.

Is an external loop filter capacitor required for the ADN2816ACPZ-500RL7, and what value is recommended?

Yes, the ADN2816ACPZ-500RL7 requires a single external ceramic capacitor between Pins 14 (CF2) and 15 (CF1). A 0.47 µF ±20% X7R capacitor with <10 nA leakage current is specified in the datasheet. This capacitor sets the VCO tuning range and acquisition time - incorrect value or poor-quality capacitor causes extended lock time or failure to acquire certain data rates.

ADN2816ACPZ-500RL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 32-WFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

PLL:: Yes

Main Purpose:: SONET/SDH

Input:: CML

Output:: LVDS

Number of Circuits:: 1

Ratio - Input:Output:: 1:2

Differential - Input:Output:: Yes/Yes

Frequency - Max:: 675MHz

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 32-LFCSP-WQ (5x5)

ADN2816ACPZ-500RL7 FAQ

1.How can I place an order for ADN2816ACPZ-500RL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADN2816ACPZ-500RL7 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 ADN2816ACPZ-500RL7 reliable?

The price and inventory of ADN2816ACPZ-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADN2816ACPZ-500RL7 is usually 5 days.

3.What payment methods are accepted for ADN2816ACPZ-500RL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADN2816ACPZ-500RL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADN2816ACPZ-500RL7?

ADN2816ACPZ-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADN2816ACPZ-500RL7 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 ADN2816ACPZ-500RL7?

For technical support, including ADN2816ACPZ-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADN2816ACPZ-500RL7 requirements.

6.How does Aetrix verify that ADN2816ACPZ-500RL7 is sourced from the original manufacturer or authorized distributors?

All ADN2816ACPZ-500RL7 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 ADN2816ACPZ-500RL7 meets industry standards.

7.What is the process for return or replacement of ADN2816ACPZ-500RL7?

All ADN2816ACPZ-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADN2816ACPZ-500RL7, 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 ADN2816ACPZ-500RL7 part is unused and in its original packaging.

Return procedure for ADN2816ACPZ-500RL7:

1.Submit a request within 90 days.

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

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