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 > Integrated Circuits (ICs) > Clock/Timing > Programmable Timers and Oscillators

Analog Devices Inc./Maxim Integrated DS4622P+

Name: DS4622P+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS4622P+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: DS4622P+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Programmable Timers and Oscillators

Package:: 10-LCCC Exposed Pad

Datasheet:: DS4622P+.pdf

Description:: IC OSC CLOCK 622.08MHZ 10-LCCC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,641

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

Product details

Overview

DS4622P+ from Maxim Integrated is a 622.08MHz LVPECL-output ceramic surface-mount crystal oscillator with ±50ppm total frequency stability, 3.3V supply operation, and <0.7psRMS phase jitter (12kHz–20MHz). It serves as a low-jitter clock source in high-speed serial data links requiring precise timing alignment, such as SONET/SDH OC-48 and 10GbE physical layer interfaces.

For engineers reviewing the DS4622P+ datasheet, DS4622P+ pinout, DS4622P+ application, or DS4622P+ equivalent, this page delivers verified package dimensions, confirmed LVPECL output behavior, validated startup time (≤50ms), and real-world application constraints for InfiniBand, GPON, and Ethernet timing subsystems.

Technical Context

The DS4622P+ integrates an AT-cut fundamental-mode crystal with a BiPOLAR SiGe synthesizer IC to generate 622.08MHz directly-no external loop filter or VCO tuning required. Its architecture uses a PLL-based frequency multiplication path feeding an LVPECL output driver stage with internal bias reference (VCC − 2.0V).

It features active-high OE control with internal 100kΩ pull-up, operates across −40°C to +85°C, and maintains differential output voltage (0.595–0.710V) and duty cycle (45–55%) under load variation. Propagation delays (tPZA/tPAZ) are guaranteed ≤200ns.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Frequency	622.08MHz - precisely matches SONET OC-48 and 10GbE WAN PHY reference clock requirements.
Frequency Stability	±50ppm total - covers initial tolerance (±20ppm), temperature drift (±35ppm), aging (±7ppm), supply (±3ppm/V), and load (±1ppm) effects.
Phase Jitter (12kHz–20MHz)	<0.7psRMS - meets stringent jitter budgets for 10GbE XAUI and SONET OC-48 receiver clock recovery.
Supply Voltage	3.3V ±5% (3.135V–3.465V) - compatible with standard 3.3V logic rails and decoupling schemes using 0.01μF + 0.1μF capacitors.
Operating Current	74–100mA (LVPECL loaded) - determines thermal budget and PCB copper weight requirements for continuous operation.
Startup Time	≤50ms - defines minimum power-on reset assertion window before clock is stable and usable by downstream logic.
Output Type	LVPECL - requires 50Ω termination to PECL_BIAS (VCC − 2.0V); not compatible with LVDS routing or termination.

Pinout & Package

DS4622P+ is housed in a 5.0mm × 3.2mm × 1.49mm, 10-pin LCCC ceramic surface-mount package with exposed paddle (EP) that must remain unconnected and free of exposed metal underneath.

Pin/Terminal	Circuit Role	Design Meaning
1	OE	Active-high output enable with internal 100kΩ pull-up; drives outputs to high-impedance (LVPECL) or logical one (LVDS) when low.
2, 7–10	N.C.	No connection - must be left floating; no routing or stitching vias permitted.
3	GND	Ground reference for all internal circuitry and output driver return path.
4	OUTP	Positive LVPECL output - requires 50Ω termination to PECL_BIAS (VCC − 2.0V).
5	OUTN	Negative LVPECL output - forms differential pair with OUTP; identical termination requirement.
6	VCC	3.3V supply input - must be decoupled with 0.01μF (high-frequency) and 0.1μF (bulk) capacitors close to pin.
EP	Exposed Paddle	Internally connected to GND but must not be soldered or contacted externally; no thermal pad connection allowed.

Key Features

Feature	Design Value
Ultra-low phase jitter	<0.7psRMS (12kHz–20MHz) enables reliable bit-error-rate performance in 10GbE and SONET receivers without additional jitter cleaning.
LVPECL output interface	Guaranteed differential swing (0.595–0.710V) and rise/fall times ≤200ps meet IEEE 802.3ap and GR-253-CORE timing compliance.
Integrated OE control	Internal 100kΩ pull-up eliminates need for external resistor; simplifies board-level enable sequencing and power-down management.
Stable over industrial range	−40°C to +85°C operation with ≤±35ppm tempco ensures timing margin retention across environmental stress testing.
RoHS-compliant packaging	Lead-free (e4 Au/Ni finish), JEDEC-compliant reflow profile, and compatibility with both leaded and lead-free soldering processes.

Applications

InfiniBand Clocking	GPON OLT Timing
Use Scenario: Provides reference clock for InfiniBand DDR/QDR physical layer transceivers operating at 2.5–10Gbps line rates. IC Role / Device Role / Timing Role: Primary system clock generator delivering low-jitter 622.08MHz to serializer/deserializer (SerDes) PLLs. Use Value: Enables sub-1ps deterministic jitter accumulation across multi-lane links, meeting InfiniBand Subn. Spec. jitter mask requirements.	Use Scenario: Supplies synchronized clock to GPON optical line terminal (OLT) burst-mode receivers and upstream transmitter timing circuits. IC Role / Device Role / Timing Role: Master timing reference for TDMA slot alignment and upstream burst synchronization in BPON/GPON systems. Use Value: ±50ppm stability and fast startup (<50ms) ensure rapid ONT registration and minimal frame loss during dynamic bandwidth allocation.
10GbE WAN PHY	SONET OC-48 Line Cards
Use Scenario: Generates 622.08MHz reference for 10GBASE-W PHY implementations compliant with IEEE 802.3ae Clause 50. IC Role / Device Role / Timing Role: Low-phase-noise clock source for WAN PHY PCS/PMA layers, directly driving gearbox and SerDes blocks. Use Value: Single-ended-to-differential LVPECL output eliminates need for external clock buffer, reducing BOM count and signal integrity risk.	Use Scenario: Delivers stratum-3–equivalent clock to SONET OC-48 framer and mapping ASICs in telecom line cards. IC Role / Device Role / Timing Role: High-stability oscillator providing primary timing reference for STS-192 payload processing and overhead generation. Use Value: −153dBc/Hz @20MHz offset and <0.7psRMS jitter satisfy Telcordia GR-1244-CORE phase noise and jitter specifications.

InfiniBand Clocking

GPON OLT Timing

Use Scenario: Provides reference clock for InfiniBand DDR/QDR physical layer transceivers operating at 2.5–10Gbps line rates.

IC Role / Device Role / Timing Role: Primary system clock generator delivering low-jitter 622.08MHz to serializer/deserializer (SerDes) PLLs.

Use Value: Enables sub-1ps deterministic jitter accumulation across multi-lane links, meeting InfiniBand Subn. Spec. jitter mask requirements.

Use Scenario: Supplies synchronized clock to GPON optical line terminal (OLT) burst-mode receivers and upstream transmitter timing circuits.

IC Role / Device Role / Timing Role: Master timing reference for TDMA slot alignment and upstream burst synchronization in BPON/GPON systems.

Use Value: ±50ppm stability and fast startup (<50ms) ensure rapid ONT registration and minimal frame loss during dynamic bandwidth allocation.

10GbE WAN PHY

SONET OC-48 Line Cards

Use Scenario: Generates 622.08MHz reference for 10GBASE-W PHY implementations compliant with IEEE 802.3ae Clause 50.

IC Role / Device Role / Timing Role: Low-phase-noise clock source for WAN PHY PCS/PMA layers, directly driving gearbox and SerDes blocks.

Use Value: Single-ended-to-differential LVPECL output eliminates need for external clock buffer, reducing BOM count and signal integrity risk.

Use Scenario: Delivers stratum-3–equivalent clock to SONET OC-48 framer and mapping ASICs in telecom line cards.

IC Role / Device Role / Timing Role: High-stability oscillator providing primary timing reference for STS-192 payload processing and overhead generation.

Use Value: −153dBc/Hz @20MHz offset and <0.7psRMS jitter satisfy Telcordia GR-1244-CORE phase noise and jitter specifications.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DS4622D+	LVDS output instead of LVPECL; common-mode voltage 1.125–1.275V; requires 100Ω differential termination.	Suitable for systems with LVDS-receiver inputs (e.g., FPGA clock inputs), not compatible with LVPECL receivers.	Select DS4622D+ only if target interface accepts LVDS signaling and board layout supports 100Ω differential routing.
Si5338A-D-GM	Programmable I2C-controlled clock generator; 622.08MHz achievable but requires configuration; higher power (120mA typical).	Supports multi-frequency synthesis and spread-spectrum modulation; used where flexibility outweighs fixed-frequency simplicity.	Choose Si5338A-D-GM only when design requires reconfigurable output frequencies or multiple synchronized clocks from one device.

Compared with DS4622D+, the DS4622P+ offers direct LVPECL drive without level-shifting, while Si5338A-D-GM trades fixed-frequency simplicity for programmability and added feature complexity-neither is pin-compatible, and both require distinct PCB layout and power delivery design.

Availability

DS4622P+ is available at Aetrix Electronics and suitable for SONET/SDH line cards, 10GbE WAN PHY modules, GPON OLT hardware, and InfiniBand switch fabric designs requiring stable component supply with full traceability and lifecycle support.

Supply support for DS4622P+ 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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and high-frequency timing solutions for communications, industrial, and computing markets.

The DS4-XO series-including DS4622P+-was designed specifically for high-speed serial infrastructure requiring ultra-low jitter, industrial temperature resilience, and compact ceramic packaging in telecom and datacom applications.

FAQ

What is the exact output frequency of the DS4622P+?

The DS4622P+ delivers a nominal output frequency of 622.08MHz, which is precisely aligned to SONET OC-48 and 10GbE WAN PHY reference clock standards. This value is factory-trimmed and guaranteed across the full −40°C to +85°C operating range with ±50ppm total stability, including aging, temperature, supply, and load effects. The DS4622P+ does not support frequency adjustment or programming.

Does the DS4622P+ require external biasing for LVPECL operation?

Yes-the DS4622P+ LVPECL outputs require external 50Ω termination to PECL_BIAS, defined as VCC − 2.0V. This bias voltage must be generated locally (e.g., via resistor divider or dedicated bias IC) and routed to both OUTP and OUTN termination networks. The DS4622P+ itself does not generate or regulate PECL_BIAS; failure to provide correct bias results in invalid logic levels and degraded jitter performance.

Can the DS4622P+ be used in place of an LVDS oscillator like DS4622D+?

No-the DS4622P+ and DS4622D+ are functionally incompatible due to differing output standards. The DS4622P+ provides LVPECL outputs requiring 50Ω to VCC − 2.0V, while DS4622D+ provides LVDS outputs requiring 100Ω differential termination and operates at ~1.2V common-mode. Swapping them without redesigning termination, routing, and receiver interface will cause signal integrity failure and timing violation.

What is the startup time specification for the DS4622P+?

The DS4622P+ has a maximum startup time of 50ms from VCC reaching 3.135V until output is stable within frequency and jitter specifications. This parameter is measured under worst-case conditions (−40°C, min VCC) and is critical for power-on reset timing in telecom line cards and network switches. OE must be held high during this interval for valid output activation.

Is the exposed paddle (EP) on the DS4622P+ package required to be grounded?

No-the exposed paddle (EP) on the DS4622P+ is internally connected to ground but must remain unconnected on the PCB. Maxim explicitly states "Do not connect this pad or place exposed metal under the pad." Soldering EP or adding thermal vias beneath it violates the qualified reflow profile and may induce mechanical stress or electrical leakage, risking long-term reliability and jitter degradation.

DS4622P+ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: 10-LCCC Exposed Pad

Packaging:: Tray

Product Status:: Obsolete

Type:: Clock Oscillator

Count:: -

Frequency:: 622.08MHz

Voltage - Supply:: 3.135V ~ 3.465V

Current - Supply:: 74 mA

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 10-LCCC (5x3.2)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

DS4622P+ FAQ

1.How can I place an order for DS4622P+ through Aetrix?

Please submit a Request for Quotation (RFQ) for DS4622P+ 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 DS4622P+ reliable?

The price and inventory of DS4622P+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS4622P+ is usually 5 days.

3.What payment methods are accepted for DS4622P+?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS4622P+ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DS4622P+?

DS4622P+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DS4622P+ 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 DS4622P+?

For technical support, including DS4622P+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS4622P+ requirements.

6.How does Aetrix verify that DS4622P+ is sourced from the original manufacturer or authorized distributors?

All DS4622P+ 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 DS4622P+ meets industry standards.

7.What is the process for return or replacement of DS4622P+?

All DS4622P+ units undergo pre-shipment inspection (PSI). If there is an issue with DS4622P+, 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 DS4622P+ part is unused and in its original packaging.

Return procedure for DS4622P+:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 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…

2026-09-01 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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…