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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Analog Devices Inc. AD9576BCPZ-REEL7

Name: AD9576BCPZ-REEL7
Brand: Analog Devices Inc.
SKU: AD9576BCPZ-REEL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD9576BCPZ-REEL7

Manufacturer:: Analog Devices Inc.

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 64-WFQFN Exposed Pad, CSP

Datasheet:: AD9576BCPZ-REEL7.pdf

Description:: IC CLOCK GENERATOR 64LFCSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD9576BCPZ-REEL7 from Analog Devices is a dual-core asynchronous clock generator IC integrating one fractional-N PLL (2375–2725 MHz VCO) and one integer-N PLL (750–825 MHz VCO), delivering up to 11 configurable differential clock outputs with <0.3 ps RMS jitter (12 kHz–20 MHz) for integer-N translations. It supports redundant XTAL switchover, pin-strapped preset frequencies (e.g., 156.25 MHz, 312.5 MHz, 644.5313 MHz), and operates from a single 2.5 V or 3.3 V supply in telecom timing and FPGA reference applications.

For engineers reviewing the AD9576BCPZ-REEL7 datasheet, AD9576BCPZ-REEL7 pinout, AD9576BCPZ-REEL7 application, or AD9576BCPZ-REEL7 equivalent, this page delivers verified technical context, real-world output alignment specs, confirmed HSTL/LVDS/HCSL drive capability per output pair, validated reference switchover disturbance (<220 ps phase transient), and precise power dissipation data across 11 output configurations - all traceable to Rev. A datasheet specifications.

Technical Context

The AD9576BCPZ-REEL7 implements two independent PLL cores: PLL0 uses a fractional-N architecture with integrated loop filter and 2375–2725 MHz VCO for low-jitter synthesis of high-frequency outputs (up to 1250 MHz), while PLL1 employs an integer-N core with 750–825 MHz VCO optimized for stable CPU/FPGA reference clocks. Both support independent reference inputs - PLL0 accepts 8 kHz–325 MHz differential/XTAL sources; PLL1 accepts 25 MHz XTAL only.

Reference monitoring enables automatic switchover between REF0 and REF1 with <350 ppm instantaneous frequency disturbance and <220 ps phase disturbance. Output distribution includes three dedicated reference outputs and 11 programmable differential outputs (OUT0–OUT10), each assignable to HSTL, LVDS, HCSL, or CMOS formats via per-output supply domains (VDD_OUTxx) and divider chains (M0/M1/Qx).

Key Specifications

Parameter	Value and Actual Design Meaning
VCO Range (PLL0)	2375–2725 MHz - Enables synthesis of 100–1250 MHz outputs via M0/M1 dividers without external VCO components.
VCO Range (PLL1)	750–825 MHz - Provides stable integer-N generation of 25–400 MHz clocks for processor/FPGA reference use.
RMS Jitter (PLL0, Integer-N)	<0.24 ps (12 kHz–20 MHz) at 156.25 MHz - Meets SONET OC-192 and 10G Ethernet jitter compliance thresholds.
Output Formats	HSTL, LVDS, HCSL, 1.8 V/2.5 V/3.3 V CMOS - Per-output format selection enables direct interface to FPGAs, SerDes, and memory controllers.
Reference Switchover Disturbance	<220 ps phase transient - Ensures uninterrupted operation during crystal failure in telecom line cards.
Supply Voltage	2.5 V or 3.3 V single supply - Simplifies power design versus multi-rail clock ICs; all VDD_x pins support either rail.
Operating Temperature	−40°C to +85°C - Qualified for industrial and networking equipment deployment.

Pinout & Package

The AD9576BCPZ-REEL7 is housed in a 64-lead, 9 mm × 9 mm LFCSP package with exposed thermal pad (EP). Pin assignments follow Analog Devices' standardized clock generator layout, featuring dedicated supply domains per output group, isolated reference input banks (REF0/REF1/REF2), and status/control pins including LD_0, LD_1, REF_SW, and SPI/I²C interface signals.

Pin/Terminal	Circuit Role	Design Meaning
REF0+, REF0−	Differential reference input (PLL0)	Accepts 325 MHz max differential clock; enables primary timing source with monitoring and switchover capability.
REF1+, REF1−	Differential reference input (redundant)	Backup reference path; automatic switchover triggered on REF0 loss with minimal phase disturbance.
REF2	XTAL input (PLL1)	25 MHz fundamental-mode crystal connection; powers integer-N PLL for general-purpose clock generation.
OUT0+ / OUT0− to OUT10+ / OUT10−	Differential clock outputs (11 pairs)	Each pair supports independent format (HSTL/LVDS/HCSL/CMOS) and frequency via M/Q dividers; OUT0–OUT7 share VDD_OUTxx domains, OUT8–OUT10 have separate supplies.
VDD_REFMON, VDD_REF0, etc.	Domain-specific power supplies	18 distinct VDD_x pins isolate noise-sensitive blocks (e.g., VDD_VCO0, VDD_PLL1, VDD_OUT67); enables optimized PDN per functional block.
LD_0, LD_1	PLL lock detect outputs	Open-drain status flags indicating PLL0/PLL1 lock acquisition; used for system boot sequencing and fault detection.
SCLK/SCL, SDIO/SDA	SPI/I²C serial interface	Configurable dual-mode control port for register programming; supports dynamic reconfiguration post-power-on.

Key Features

Feature	Design Value
Dual independent PLL cores	Enables simultaneous generation of asynchronous clock domains - e.g., 156.25 MHz SerDes reference (PLL0) and 100 MHz CPU clock (PLL1) - without inter-modulation or shared-loop noise coupling.
Pin-strapped preset configurations (PPRx)	Four PPRx pins select among 16 factory-defined output frequency sets; eliminates need for firmware initialization in cost-sensitive systems.
Redundant XTAL switchover with monitoring	Automatic failover between REF0 and REF1 with <220 ps phase disturbance ensures continuous timing in base station backplanes and optical line cards.
Per-output supply domains (VDD_OUTxx)	Isolates power delivery to output groups (e.g., VDD_OUT67 for OUT6/OUT7), enabling mixed-format operation (LVDS + HCSL) without cross-talk or supply rail collapse.
Integrated loop filters	Reduces BOM count by eliminating external passive components for both PLLs; single external capacitor required per loop.

Applications

Ethernet Line Cards	Baseband Units (BBUs)
Use Scenario: Generating synchronized 156.25 MHz and 312.5 MHz clocks for 10G/25G Ethernet PHYs and packet processors in carrier-grade switches. IC Role / Device Role / Timing Role: Asynchronous clock generator providing jitter-clean, domain-isolated clocks to multiple SerDes lanes and MAC controllers. Use Value: Achieves <0.22 ps RMS jitter (12 kHz–20 MHz) at 156.25 MHz, meeting IEEE 802.3bj Annex 83F requirements without external cleanup PLLs.	Use Scenario: Supplying 24.576 MHz, 30.72 MHz, and 122.88 MHz clocks to RF transceivers and digital front-end FPGAs in 4G/5G macro base stations. IC Role / Device Role / Timing Role: Dual-PLL timing hub distributing phase-aligned but frequency-asynchronous clocks across analog and digital signal paths. Use Value: Uses PLL0 fractional-N core for exact LTE/NR channel raster frequencies and PLL1 integer-N core for stable FPGA fabric clocks - eliminating timing skew between RF and baseband domains.
SATA / PCI Express	Low-Jitter Test Equipment
Use Scenario: Delivering 100 MHz PCIe Gen3 reference and 75 MHz SATA Gen3 clocks from a single device in embedded storage controllers. IC Role / Device Role / Timing Role: Multi-output clock synthesizer replacing discrete oscillators and fanout buffers in space-constrained designs. Use Value: Supports HCSL (OUT8–OUT10) and LVDS (OUT0–OUT7) simultaneously, enabling direct interface to PCIe root complex and SATA PHYs without level-shifting.	Use Scenario: Providing sub-0.3 ps jitter sampling clocks for high-speed ADCs/DACs and precision signal generators in automated test systems. IC Role / Device Role / Timing Role: Ultra-low-noise clock source with validated 1.875 MHz–20 MHz integrated jitter performance. Use Value: Delivers 0.053 ps RMS jitter (1.875 MHz–20 MHz) at 625 MHz - 3× lower than typical jitter cleaners - enabling >12-bit ENOB at 1 GSPS.

Ethernet Line Cards

Baseband Units (BBUs)

Use Scenario: Generating synchronized 156.25 MHz and 312.5 MHz clocks for 10G/25G Ethernet PHYs and packet processors in carrier-grade switches.

IC Role / Device Role / Timing Role: Asynchronous clock generator providing jitter-clean, domain-isolated clocks to multiple SerDes lanes and MAC controllers.

Use Value: Achieves <0.22 ps RMS jitter (12 kHz–20 MHz) at 156.25 MHz, meeting IEEE 802.3bj Annex 83F requirements without external cleanup PLLs.

Use Scenario: Supplying 24.576 MHz, 30.72 MHz, and 122.88 MHz clocks to RF transceivers and digital front-end FPGAs in 4G/5G macro base stations.

IC Role / Device Role / Timing Role: Dual-PLL timing hub distributing phase-aligned but frequency-asynchronous clocks across analog and digital signal paths.

Use Value: Uses PLL0 fractional-N core for exact LTE/NR channel raster frequencies and PLL1 integer-N core for stable FPGA fabric clocks - eliminating timing skew between RF and baseband domains.

SATA / PCI Express

Low-Jitter Test Equipment

Use Scenario: Delivering 100 MHz PCIe Gen3 reference and 75 MHz SATA Gen3 clocks from a single device in embedded storage controllers.

IC Role / Device Role / Timing Role: Multi-output clock synthesizer replacing discrete oscillators and fanout buffers in space-constrained designs.

Use Value: Supports HCSL (OUT8–OUT10) and LVDS (OUT0–OUT7) simultaneously, enabling direct interface to PCIe root complex and SATA PHYs without level-shifting.

Use Scenario: Providing sub-0.3 ps jitter sampling clocks for high-speed ADCs/DACs and precision signal generators in automated test systems.

IC Role / Device Role / Timing Role: Ultra-low-noise clock source with validated 1.875 MHz–20 MHz integrated jitter performance.

Use Value: Delivers 0.053 ps RMS jitter (1.875 MHz–20 MHz) at 625 MHz - 3× lower than typical jitter cleaners - enabling >12-bit ENOB at 1 GSPS.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5341-A01A-GM	4-output, 4-input, software-programmable clock generator with integrated DCO; no hardware pin-strapping; higher integration but requires I²C configuration.	Better suited for dynamically reconfigured systems (e.g., software-defined radios); lacks hardware-configurable presets and automatic XTAL switchover.	Select Si5341-A01A-GM when firmware-controlled frequency agility outweighs need for zero-config power-on operation.
LMK04832ISQE/NOPB	Dual cascaded PLL architecture (jitter cleaner + synthesizer); supports JESD204B subclass 1; requires external loop filter components.	Optimized for JESD204B-compliant data converters; superior phase noise floor but higher BOM cost and layout complexity.	Choose LMK04832ISQE/NOPB for radar/AWGs requiring deterministic latency and TDC calibration - not for fixed-configuration telecom line cards.

Compared with Si5341-A01A-GM and LMK04832ISQE/NOPB, the AD9576BCPZ-REEL7 uniquely combines hardware-pin-strapped presets, automatic dual-crystal switchover, and dual independent PLLs in a single 9 mm × 9 mm package - making it optimal for cost-sensitive, high-reliability telecom infrastructure where firmware dependency must be minimized.

Availability

AD9576BCPZ-REEL7 is available at Aetrix Electronics and suitable for Ethernet line cards, baseband units, and SATA/PCIe timing applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for AD9576BCPZ-REEL7 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with deep expertise in precision timing, RF, and data conversion.

The AD9576BCPZ-REEL7 belongs to Analog Devices' AD95xx clock generation family, engineered specifically for asynchronous, multi-domain timing in telecom infrastructure, wireless base stations, and high-speed serial interfaces - emphasizing jitter performance, redundancy, and hardware-configurable flexibility.

FAQ

What is the maximum output frequency supported by AD9576BCPZ-REEL7?

The AD9576BCPZ-REEL7 supports up to 1250 MHz on OUT4–OUT7 and OUT0–OUT3 in HSTL and LVDS modes, as specified in Table 8 of the Rev. A datasheet. This is achieved using the fractional-N PLL0 core with M0/M1 dividers; OUT8–OUT10 are rated to 1000 MHz in HSTL/LVDS and 800 MHz in HCSL. All outputs maintain <0.31 ps RMS jitter (12 kHz–20 MHz) at these frequencies under typical conditions.

Does AD9576BCPZ-REEL7 support automatic switchover between two crystal references?

Yes, AD9576BCPZ-REEL7 supports automatic redundant XTAL switchover between REF0 and REF1 with minimal transient impact: <220 ps instantaneous phase disturbance and <350 ppm frequency disturbance, as measured in Table 5. The switchover is triggered by internal reference monitoring circuitry and occurs without host intervention - critical for carrier-grade baseband units and optical line cards.

Can AD9576BCPZ-REEL7 generate both 156.25 MHz and 312.5 MHz simultaneously?

Yes, AD9576BCPZ-REEL7 can generate 156.25 MHz and 312.5 MHz simultaneously: 156.25 MHz is a standard preset frequency for PLL0 (using 25 MHz REF2 with doubler enabled), and 312.5 MHz is explicitly listed in the "Preset frequency translations" section for PLL0 with 25 MHz input. Both outputs can be assigned to separate OUTx pairs (e.g., OUT0 and OUT4) with independent format and divider settings.

What power supply requirements does AD9576BCPZ-REEL7 have?

AD9576BCPZ-REEL7 operates from a single 2.5 V or 3.3 V nominal supply applied across 18 dedicated VDD_x pins (e.g., VDD_VCO0, VDD_OUT67, VDD_REFMON), as defined in Table 1. Each domain has specified min/max voltage (2.38–2.63 V for 2.5 V mode; 2.97–3.63 V for 3.3 V mode). Total power dissipation ranges from 145 mW (minimal config) to 1520 mW (all blocks running), per Table 3.

Is AD9576BCPZ-REEL7 pin-compatible with other AD95xx devices?

No, AD9576BCPZ-REEL7 is not pin-compatible with other AD95xx devices. Its 64-lead LFCSP package and pinout - including 11 differential output pairs, three reference inputs, and 18 domain-specific VDD_x pins - are unique to the AD9576. Migration from AD9573 or AD9577 requires PCB redesign due to differing pin functions, supply architecture, and output count.

AD9576BCPZ-REEL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 64-WFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Type:: Clock Generator, Frequency Synthesizer

PLL:: Yes

Input:: Clock, Crystal

Output:: CMOS, HCSL, HSTL, LVDS

Number of Circuits:: 1

Ratio - Input:Output:: 3:11

Differential - Input:Output:: Yes/Yes

Frequency - Max:: 1.25GHz

Divider/Multiplier:: Yes/No

Voltage - Supply:: 2.38V ~ 3.63V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 64-LFCSP (9x9)

AD9576BCPZ-REEL7 FAQ

1.How can I place an order for AD9576BCPZ-REEL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AD9576BCPZ-REEL7 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 AD9576BCPZ-REEL7 reliable?

The price and inventory of AD9576BCPZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9576BCPZ-REEL7 is usually 5 days.

3.What payment methods are accepted for AD9576BCPZ-REEL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9576BCPZ-REEL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD9576BCPZ-REEL7?

AD9576BCPZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD9576BCPZ-REEL7 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 AD9576BCPZ-REEL7?

For technical support, including AD9576BCPZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9576BCPZ-REEL7 requirements.

6.How does Aetrix verify that AD9576BCPZ-REEL7 is sourced from the original manufacturer or authorized distributors?

All AD9576BCPZ-REEL7 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 AD9576BCPZ-REEL7 meets industry standards.

7.What is the process for return or replacement of AD9576BCPZ-REEL7?

All AD9576BCPZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD9576BCPZ-REEL7, 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 AD9576BCPZ-REEL7 part is unused and in its original packaging.

Return procedure for AD9576BCPZ-REEL7:

1.Submit a request within 90 days.

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

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