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Analog Devices Inc./Maxim Integrated DS1091LUA-030/V+
- Part No.:
- DS1091LUA-030/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1091LUA-030/V+.pdf
- Description:
- IC SS CLOCK GENERATOR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,039
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Product details
Overview
DS1091LUA-030/V+ from Maxim Integrated is an automotive-grade, factory-programmed spread-spectrum clock oscillator delivering a center-dithered 30.0MHz output with ±0.25% nominal accuracy at +25°C and ±1.75% across -40°C to +125°C. It operates from 3.0V to 3.6V, features pin-selectable dither magnitude (0%, ±1%, ±2%, ±4%) and dither rate, and is housed in a lead(Pb)-free 8-pin µMAX® package. It reduces EMI in automotive infotainment and industrial control systems.
For engineers reviewing the DS1091LUA-030/V+ datasheet, DS1091LUA-030/V+ pinout, DS1091LUA-030/V+ application, or DS1091LUA-030/V+ equivalent, key selection criteria include its center-spread spectrum profile, automotive temperature qualification (-40°C to +125°C), 30.0MHz factory-set frequency, 8-pin µMAX package compatibility, and dither configuration via SEL0/SEL1/DR pins.
Technical Context
The DS1091LUA-030/V+ implements a triangle-wave modulated master oscillator architecture to generate center-dithered spread-spectrum output. Its dither rate is determined by the DR pin state and output frequency per n-value lookup (n = 11 for fOUT = 30.0MHz), yielding ~13.2kHz (DR = 1) or ~6.6kHz (DR = 0) modulation frequency.
It uses factory-trimmed internal circuitry to achieve ±0.25% initial accuracy and maintains ±1.75% total variation over full automotive voltage (3.0V–3.6V) and temperature (-40°C to +125°C) ranges. Power-up behavior holds OUT low for ≤0.1ms to prevent glitching during supply ramp.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 30.0MHz - factory-programmed center frequency, fixed for this variant. |
| Frequency Accuracy | ±0.25% at +25°C - ensures precise timing reference for synchronous interfaces. |
| Temperature Range | -40°C to +125°C - qualified for under-hood and dashboard-mounted automotive electronics. |
| Supply Voltage | 3.0V to 3.6V - compatible with modern automotive 3.3V power rails and noise margins. |
| Dither Type | Center-dithered - spreads energy symmetrically around 30.0MHz to suppress narrowband EMI peaks. |
| Dither Magnitude | Pin-selectable: 0%, ±1%, ±2%, ±4% - enables EMI optimization without firmware changes. |
| Package | 8-pin µMAX® (U8+1, 21-0036 outline) - compact 3mm × 3mm surface-mount footprint with thermal pad. |
Pinout & Package
DS1091LUA-030/V+ is packaged in a lead(Pb)-free, RoHS-compliant 8-pin µMAX® (U8+1) package with exposed thermal pad. Pin 1 is OUT; pins 6 and 7 are no-connect (N.C.); VCC appears on pins 2 and 4; GND is on pin 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Spread-spectrum clock output | CMOS-compatible square wave; drives 15pF–50pF loads with <1.2ns rise/fall times. |
| 2, 4 (VCC) | Positive supply input | Accepts 3.0V–3.6V; requires local 0.01µF + 0.1µF ceramic decoupling per pin. |
| 3 (GND) | Ground reference | Substrate-connected to ground; forms return path for output and supply currents. |
| 5 (SEL0), 4 (SEL1) | Dither magnitude select inputs | Binary-coded logic inputs (0/1) selecting ±0%, ±1%, ±2%, or ±4% center dither. |
| 8 (DR) | Dither rate selector | Logic-level input setting dither frequency to ~13.2kHz (DR=1) or ~6.6kHz (DR=0) at 30.0MHz. |
| 6, 7 (N.C.) | No connection | Internally unconnected; must remain floating or grounded-no external bias required. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | Qualified per AEC-Q200 requirements for -40°C to +125°C operation and long-term reliability. |
| Factory-programmed frequency | 30.0MHz center frequency laser-trimmed at wafer test-eliminates external tuning components. |
| Configurable spread spectrum | Hardware-selectable dither magnitude and rate enable EMI reduction without software or clock tree redesign. |
| Low-jitter output | 0.3% RMS jitter at 50MHz - meets timing margin requirements for high-speed parallel buses and display interfaces. |
| Robust supply tolerance | Operates across full 3.0V–3.6V range with only ±1.75% frequency drift - simplifies power rail design. |
Applications
| Automotive Infotainment | Industrial Control Panels |
|---|---|
|
Use Scenario: Clocking audio/video processors and display controllers in head-unit systems subject to strict CISPR 25 Class 5 radiated emissions limits. IC Role / Device Role / Timing Role: Primary spread-spectrum clock source synchronizing HDMI, LVDS, and I²S data paths. Use Value: Center-dithered 30.0MHz output reduces peak EMI by up to 14dB (at ±4% dither), enabling compliance without shielding or ferrites. |
Use Scenario: Providing timing for PLC I/O modules and HMI touch-screen controllers operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: System clock generator for ARM-based microcontrollers and FPGA fabric clocks. Use Value: ±1.75% stability over -40°C to +125°C ensures deterministic real-time response without recalibration. |
| LCD Display Modules | POS Terminals |
|
Use Scenario: Driving timing-critical source/gate drivers in automotive-grade TFT-LCD displays where pixel clock jitter causes visible artifacts. IC Role / Device Role / Timing Role: Pixel clock generator with sub-1.2ns edge rates and low RMS jitter. Use Value: 0.3% RMS jitter at 30MHz minimizes display flicker and color banding in wide-temperature deployments. |
Use Scenario: Supplying stable clock to payment processing SoCs and secure element interfaces in retail kiosks exposed to ambient temperature swings. IC Role / Device Role / Timing Role: Master clock for cryptographic accelerators and USB host controllers. Use Value: Factory-trimmed ±0.25% accuracy at +25°C and guaranteed ±1.75% over full range ensures consistent transaction timing and certification compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar spread-spectrum oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5351A-B-GM | Programmable I²C clock generator (not factory-set); supports multiple outputs; higher jitter (1.5ps RMS). | Requires MCU firmware control; suited for multi-frequency systems, not single-fixed-clock replacements. | Choose only if dynamic frequency reconfiguration or multiple clock domains are needed. |
| ICS843002AGI-01LFT | Fixed 30MHz spread-spectrum XO; ±50ppm stability; 6-pin SOT23-6 package; no dither configuration pins. | Lacks pin-selectable dither magnitude/rate; limited to one dither profile; smaller footprint but less EMI tuning flexibility. | Select when board space is critical and fixed ±0.5% dither suffices without hardware adjustment. |
Compared with Si5351A-B-GM and ICS843002AGI-01LFT, DS1091LUA-030/V+ offers unique hardware-configurable dithering, automotive temperature qualification, and factory-set precision-making it optimal for cost-sensitive, EMI-constrained embedded timing where firmware overhead or layout revision is unacceptable.
Availability
DS1091LUA-030/V+ is available at Aetrix Electronics and suitable for automotive infotainment, industrial control panels, and LCD display modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for DS1091LUA-030/V+ 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) designs precision analog, mixed-signal, and timing ICs for demanding industrial, automotive, and communications applications.
The DS1091L series delivers low-cost, configurable spread-spectrum oscillators targeting EMI reduction in automotive and industrial systems where fixed-frequency clocks fail radiated emissions tests.
FAQ
What is the factory-programmed output frequency of DS1091LUA-030/V+?
The DS1091LUA-030/V+ is factory-programmed to deliver a precise 30.0MHz center-dithered spread-spectrum clock output. This frequency is laser-trimmed during manufacturing and cannot be altered in-circuit. The "/V+" suffix confirms automotive qualification and RoHS compliance, and the "UA" designation specifies center-dither capability - distinct from the down-dither LUB variants.
Does DS1091LUA-030/V+ require external configuration to operate at 30.0MHz?
No, DS1091LUA-030/V+ operates immediately at its factory-set 30.0MHz output upon power application. No external programming, I²C interface, or configuration pins are needed for basic operation. SEL0, SEL1, and DR pins only adjust dither magnitude and rate - they do not affect the base 30.0MHz center frequency, which is permanently programmed into the device.
What is the maximum allowable supply voltage for DS1091LUA-030/V+?
The absolute maximum supply voltage for DS1091LUA-030/V+ is +6.0V relative to GND, but the recommended operating range is strictly 3.0V to 3.6V. Operating outside this range risks exceeding the ±1.75% frequency stability specification and may impact long-term reliability. The device draws 16mA typical supply current at 3.6V and 66.6MHz - at 30.0MHz, current is proportionally lower.
How does DS1091LUA-030/V+ reduce electromagnetic interference (EMI)?
DS1091LUA-030/V+ reduces EMI by generating a center-dithered 30.0MHz output that modulates frequency ±1%, ±2%, or ±4% around the nominal value using an internal triangle-wave generator. This spreads spectral energy across a bandwidth, lowering peak radiated emissions by up to 14dB - verified in test data for 33.3MHz output at ±4% dither, and directly scalable to the 30.0MHz output of DS1091LUA-030/V+.
Is DS1091LUA-030/V+ pin-compatible with other DS1091L variants like DS1091LUA-033/V+?
Yes, DS1091LUA-030/V+ is pin-compatible with all DS1091LUA-x/V+ variants (e.g., DS1091LUA-033/V+, DS1091LUA-040/V+) because they share the identical 8-pin µMAX® package (U8+1), identical pinout, and identical electrical interface. Only the factory-programmed center frequency differs - 30.0MHz for DS1091LUA-030/V+, 33.3MHz for DS1091LUA-033/V+, etc. No PCB layout change is required when swapping within the UA family.
DS1091LUA-030/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconOscillator™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Spread Spectrum Clock Generator
- PLL:
- No
- Input:
- Clock
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:1
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 30MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 8-uMAX/uSOP
DS1091LUA-030/V+ FAQ
1.How can I place an order for DS1091LUA-030/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1091LUA-030/V+ 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 DS1091LUA-030/V+ reliable?
The price and inventory of DS1091LUA-030/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1091LUA-030/V+ is usually 5 days.
3.What payment methods are accepted for DS1091LUA-030/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1091LUA-030/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1091LUA-030/V+?
DS1091LUA-030/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1091LUA-030/V+ 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 DS1091LUA-030/V+?
For technical support, including DS1091LUA-030/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1091LUA-030/V+ requirements.
6.How does Aetrix verify that DS1091LUA-030/V+ is sourced from the original manufacturer or authorized distributors?
All DS1091LUA-030/V+ 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 DS1091LUA-030/V+ meets industry standards.
7.What is the process for return or replacement of DS1091LUA-030/V+?
All DS1091LUA-030/V+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1091LUA-030/V+, 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 DS1091LUA-030/V+ part is unused and in its original packaging.
Return procedure for DS1091LUA-030/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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