Analog Devices Inc./Maxim Integrated DS1080LU+A00
- Part No.:
- DS1080LU+A00
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1080LU+A00.pdf
- Description:
- IC CRYSTAL MULT 8UMAX
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DS1080LU+A00 from Maxim Integrated is a low-jitter, crystal-based spread-spectrum clock generator with integrated PLL, generating 16MHz–134MHz outputs via 1x/2x/4x multiplication, selectable ±0.5%/±1.0%/±1.5% center-spread dithering, and power-down mode - used in automotive infotainment and PC peripheral timing systems.
For engineers reviewing the DS1080LU+A00 datasheet, DS1080LU+A00 pinout, DS1080LU+A00 application, or DS1080LU+A00 equivalent, key selection criteria include its 8-pin µSOP package, -40°C to +125°C operation, tri-level configuration pins (CMSEL/SMSEL/PDN), and guaranteed peak cycle-to-cycle jitter ≤75ps at 16MHz.
Technical Context
The DS1080LU+A00 implements a fixed-ratio PLL architecture with center-spread modulation at fIN/992, enabling EMI reduction without altering system timing margins. Its tri-level digital inputs (CMSEL, SMSEL, PDN) configure multiplication factor, dither magnitude, and functional state without external resistors or EEPROM.
It accepts 16MHz–33.4MHz fundamental-mode crystals (ESR < 90Ω) or single-ended clock inputs on X1, with X2 left open in oscillator-drive mode. The SSO output drives up to 15pF load with 1.6ns rise/fall times and maintains 40–60% duty cycle across temperature and supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 16MHz to 134MHz - covers PCIe Gen1, USB 2.0, SATA I, and legacy PCI clock domains |
| Spread-Spectrum Dither Magnitude | ±0.5%, ±1.0%, or ±1.5% - user-selectable via SMSEL pin for EMI compliance tuning |
| Cycle-to-Cycle Jitter (Peak) | ≤75ps at 16MHz - ensures setup/hold margin integrity in high-speed synchronous interfaces |
| Supply Voltage Range | 3.0V to 3.6V - compatible with 3.3V industrial and automotive power rails |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial edge computing |
| Power-Down Current | 200µA - enables low-quiescent-state sleep modes in battery-backed systems |
| Output Drive Strength | 4mA sink/source - sufficient for direct connection to FPGA clock inputs or buffer ICs |
Pinout & Package
DS1080LU+A00 is housed in an 8-lead µSOP package (package code U8+1, outline 21-0036), measuring 3.0mm × 3.0mm × 1.0mm, RoHS-compliant and lead(Pb)-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X1 | Crystal drive / clock input | High-impedance input accepting 16–33.4MHz fundamental crystal or external clock; X2 must be open when using clock source |
| GND | Signal ground reference | Primary return path for internal PLL and output driver; requires low-inductance PCB connection to minimize jitter |
| CMSEL | Clock multiplier select | Tri-level input: logic 0 = 1x, open = 2x, logic 1 = 4x - sets PLL multiplication ratio without external components |
| SMSEL | Spread-spectrum magnitude select | Tri-level input: logic 0 = ±0.5%, open = ±1.0%, logic 1 = ±1.5% - configures EMI reduction depth |
| PDN | Power-down / spread-spectrum disable | Tri-level input: logic 0 = high-Z SSO + standby, open = active SSO + no dither, logic 1 = active SSO + dither enabled |
| SSO | Spread-spectrum clock output | CMOS-compatible output delivering multiplied, dithered clock; 3-stated during power-up until PLL lock |
| VCC | Supply voltage | 3.0–3.6V single supply; requires local 0.001µF + 0.1µF ceramic decoupling per layout guidelines |
| X2 | Crystal drive output | Completes crystal resonator circuit with X1; must be left floating when external clock is applied to X1 |
Key Features
| Feature | Design Value |
|---|---|
| Center-spread spectrum modulation | Reduces radiated EMI by spreading energy over ±0.5–1.5% bandwidth around center frequency, meeting FCC Class B limits |
| Tri-level configuration interface | Eliminates need for pull-up/down resistors or I²C programming - simplifies BOM and layout for cost-sensitive designs |
| Low-power power-down mode | Reduces system idle current by >98% vs. active mode (200µA vs. 15mA), critical for always-on automotive modules |
| Guaranteed jitter performance | Peak cycle-to-cycle jitter ≤75ps at 16MHz ensures reliable sampling in DDR memory controllers and USB PHYs |
| Automotive-grade temperature range | Full functionality from -40°C to +125°C supports engine control units, ADAS sensors, and infotainment head units |
Applications
| Automotive Infotainment | PC Peripheral Timing |
|---|---|
Use Scenario: Clocking audio/video processors and display interfaces in vehicle head units where EMI must meet CISPR 25 Class 5 limits. IC Role / Device Role / Timing Role: Primary spread-spectrum clock generator synchronizing HDMI transmitter, DSP, and touch controller subsystems. Use Value: ±1.0% dithering reduces peak radiated emissions by 10–15dB, eliminating need for ferrite beads or shielding cans. | Use Scenario: Providing EMI-compliant clock to USB 2.0 hubs and SATA controllers on desktop motherboard VRM sections. IC Role / Device Role / Timing Role: Low-jitter clock source replacing fixed-frequency oscillators to pass FCC Part 15B conducted emission tests. Use Value: 2x multiplication from 25MHz crystal yields 50MHz spread-spectrum clock, meeting USB spec timing margins while lowering system-level noise floor. |
| Cable Modem PHY Interface | Industrial Printer Controller |
Use Scenario: Driving DOCSIS 3.0 QAM modulator/demodulator clocks in cable modems operating in noisy RF environments. IC Role / Device Role / Timing Role: Spread-spectrum clock generator for analog front-end sampling clocks and MAC-layer timing references. Use Value: Configurable ±0.5% dither allows fine-tuning to avoid interference with adjacent upstream/downstream RF bands. | Use Scenario: Synchronizing stepper motor drivers and image processing ASICs in high-speed laser printers requiring stable 66MHz timing. IC Role / Device Role / Timing Role: 4x multiplier generating 132MHz spread-spectrum clock from 33MHz crystal for print engine timing engine. Use Value: 8-pin µSOP footprint minimizes PCB area in space-constrained printer mainboard layouts while maintaining <100ps jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar spread-spectrum clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT8T49N242A | Programmable via I²C; supports fractional-N PLL and multiple output frequencies; higher integration but larger 24-QFN package | Used in multi-clock domain systems (e.g., servers); requires firmware initialization and external EEPROM | Select when flexible frequency synthesis and multiple outputs are required; not drop-in for DS1080LU+A00's simple tri-level configuration |
| ICS9FGP108 | Fixed 100MHz/125MHz outputs only; no dither magnitude selection; lower max temp rating (-40°C to +85°C) | Targeted at consumer PCs and networking gear; lacks automotive qualification and wide-temp support | Select for cost-sensitive, non-automotive applications where fixed frequencies suffice and extended temperature is unnecessary |
Compared with IDT8T49N242A and ICS9FGP108, DS1080LU+A00 offers simpler hardware-only configuration, guaranteed -40°C to +125°C operation, and precise dither control - making it optimal for automotive and industrial timing where reliability and EMI predictability outweigh programmability needs.
Availability
DS1080LU+A00 is available at Aetrix Electronics and suitable for automotive infotainment, cable modem PHY interfaces, and industrial printer controller applications requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for DS1080LU+A00 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-reliability timing solutions for industrial, automotive, and communications markets.
The DS1080LU+A00 belongs to Maxim's spread-spectrum crystal multiplier product line, designed specifically to reduce electromagnetic interference in high-speed digital systems without compromising timing accuracy or requiring complex configuration.
FAQ
What is the maximum crystal ESR supported by the DS1080LU+A00?
The DS1080LU+A00 supports crystals with equivalent series resistance (ESR) up to 90Ω, as specified in the Absolute Maximum Ratings section. Exceeding this value may prevent reliable startup or cause frequency instability, especially at temperature extremes. For robust operation across -40°C to +125°C, crystals rated ≤70Ω are recommended. The DS1080LU+A00 datasheet confirms this limit applies directly to the DS1080LU+A00 device under all operating conditions.
Can the DS1080LU+A00 accept an external clock instead of a crystal?
Yes, the DS1080LU+A00 accepts a single-ended 16MHz–33.4MHz clock signal applied to the X1 pin, with X2 left unconnected. In this mode, the internal crystal oscillator circuitry is bypassed, and the device uses the external clock as the PLL reference. Input logic thresholds (VIH ≥ 0.8×VCC, VIL ≤ 0.2×VCC) and input leakage (±1µA) are specified for the DS1080LU+A00 in the DC Electrical Characteristics table.
How does the PDN pin affect DS1080LU+A00 output behavior during power-up?
During power-up, the DS1080LU+A00 holds the SSO output in high-impedance state until the PLL achieves stable lock - typically within 33ms at 16MHz (tPOR). If PDN is pulled low, SSO remains three-stated indefinitely; if PDN is open, SSO becomes active but spread-spectrum dithering is disabled; if PDN is high, SSO activates with dither enabled. This behavior is guaranteed for the DS1080LU+A00 across its full temperature range.
What is the dither rate of the DS1080LU+A00 and how is it determined?
The DS1080LU+A00 uses a fixed dither rate of fIN/992, where fIN is the crystal or clock input frequency (16–33.4MHz). This yields a dither frequency between ~16.1kHz and ~33.7kHz - intentionally placed above the audio band to avoid audible noise while ensuring effective EMI spreading. The DS1080LU+A00 datasheet states this is "guaranteed by design" and applies to all variants including DS1080LU+A00.
Is the DS1080LU+A00 pin-compatible with other members of the DS1080L family?
Yes, the DS1080LU+A00 shares identical pinout, electrical characteristics, and functional behavior with all DS1080L variants (e.g., DS1080LU/V+, DS1080LU+T) in the 8-pin µSOP package. Differences are limited to packaging suffixes (e.g., /V for automotive qualification, T for tape-and-reel) and do not affect DS1080LU+A00 pin mapping, timing, or configuration logic.
DS1080LU+A00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Crystal Multiplier, Spread Spectrum Clock Generator
- PLL:
- Yes
- Input:
- Clock, Crystal
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:1
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 134MHz
- Divider/Multiplier:
- No/Yes
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-uMAX/uSOP
DS1080LU+A00 FAQ
1.How can I place an order for DS1080LU+A00 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1080LU+A00 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 DS1080LU+A00 reliable?
The price and inventory of DS1080LU+A00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1080LU+A00 is usually 5 days.
3.What payment methods are accepted for DS1080LU+A00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1080LU+A00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1080LU+A00?
DS1080LU+A00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1080LU+A00 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 DS1080LU+A00?
For technical support, including DS1080LU+A00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1080LU+A00 requirements.
6.How does Aetrix verify that DS1080LU+A00 is sourced from the original manufacturer or authorized distributors?
All DS1080LU+A00 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 DS1080LU+A00 meets industry standards.
7.What is the process for return or replacement of DS1080LU+A00?
All DS1080LU+A00 units undergo pre-shipment inspection (PSI). If there is an issue with DS1080LU+A00, 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 DS1080LU+A00 part is unused and in its original packaging.
Return procedure for DS1080LU+A00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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