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Analog Devices Inc./Maxim Integrated DS1088LU-66+
- Part No.:
- DS1088LU-66+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1088LU-66+.pdf
- Description:
- IC CLOCK GENERATOR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,047
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Product details
Overview
DS1088LU-66+ from Maxim Integrated is a factory-calibrated, fixed-frequency EconOscillator™ generating a 66.6MHz square-wave output with ±1.0% frequency variation over voltage and temperature, 2.7V–3.6V supply, and active-low power-down control-used in cable modems and POS terminals for stable system clocking.
For engineers reviewing the DS1088LU-66+ datasheet, DS1088LU-66+ pinout, DS1088LU-66+ application, or DS1088LU-66+ equivalent, key selection criteria include guaranteed 66.6MHz output tolerance, µSOP-8 package compatibility, power-down timing (≤7µs disable), and decoupling requirements (0.01µF + 0.1µF ceramics).
Technical Context
The DS1088LU-66+ integrates a voltage-controlled oscillator (80–160MHz range) followed by a programmable prescaler (÷1, ÷2, ..., ÷256) to deliver its precise 66.6MHz output. Its EEPROM stores factory-set division ratio and calibration data.
Power-down mode disables both oscillator core and output driver within ≤7µs; recovery requires stabilization over ~512 cycles (~7.6µs at 66.6MHz). Output drive capability supports 15–50pF load capacitance with 40–60% duty cycle across frequency and voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 66.6MHz - exact factory-programmed value, no external components required |
| Frequency Tolerance | ±1.0% over full VCC (2.7V–3.6V) and temperature (-20°C to +85°C) - ensures timing margin in consumer/industrial systems |
| Supply Voltage | 2.7V to 3.6V - compatible with 3.3V logic rails and low-power embedded designs |
| Power-Down Current | 10µA max - enables ultra-low standby power in battery-backed or energy-sensitive applications |
| Output Load Range | 15pF to 50pF - supports standard CMOS inputs without external buffering |
| Duty Cycle | 40%–60% - meets setup/hold timing requirements for synchronous logic interfaces |
| Power-Up Stabilization | 100µs max - includes internal delay for oscillator lock; output active after ~512 cycles |
Pinout & Package
DS1088LU-66+ uses an 8-pin µSOP package (package code U8+1, outline 21-0036), with exposed pad grounded per Maxim land pattern 90-0092. Pins 4 and 5 are GND; pins 2 and 3 are VCC; pin 7 and 8 are DNC (internally grounded).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Square-wave clock output - CMOS-compatible, drives 15–50pF loads directly |
| 2, 3 | VCC | Power supply inputs - dual VCC pins reduce IR drop and improve noise immunity |
| 4, 5 | GND | Ground reference - dual GND pins provide low-inductance return path |
| 6 | PDN | Active-low power-down control - must be held low ≥2 output cycles + 10µs to enter standby |
| 7, 8 | DNC | Do Not Connect - internally tied to GND; floating connection causes no functional impact |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Calibrated Fixed Frequency | 66.6MHz output trimmed at wafer/test level - eliminates need for external crystal or trimming capacitors |
| Integrated Power-Down Control | Hardware-enabled sleep mode reducing current to 10µA - supports dynamic power gating in peripherals |
| No External Timing Components | Self-contained oscillator core - simplifies BOM, PCB layout, and qualification for cost-sensitive designs |
| Wide Supply Range | 2.7V–3.6V operation - accommodates aging batteries or noisy 3.3V rails without regulation |
| Stable Duty Cycle | 40–60% across voltage/temperature - ensures reliable sampling in synchronous digital interfaces |
Applications
| Printers | Copiers |
|---|---|
Use Scenario: Synchronizing print engine timing, motor control, and USB/Ethernet interface clocks in mid-volume office printers. IC Role / Device Role / Timing Role: Primary system clock source for MCU and peripheral controllers. Use Value: Eliminates crystal + load capacitor placement and matching, reducing board area and assembly cost by ~$0.12/unit. | Use Scenario: Providing master clock for image processing pipeline, scanner ADC, and network controller in multifunction copiers. IC Role / Device Role / Timing Role: Low-jitter, fixed-frequency reference for real-time video and data transfer subsystems. Use Value: ±1.0% tolerance ensures frame sync stability across thermal cycling without recalibration. |
| POS Terminals | Cable Modems |
Use Scenario: Clocking payment processor, display driver, and secure element in retail point-of-sale hardware. IC Role / Device Role / Timing Role: Single-supply, low-power timing source enabling fast wake-from-sleep response. Use Value: 10µA standby current extends battery backup runtime during AC outage without compromising boot speed. | Use Scenario: Generating DOCSIS-compliant upstream/downstream clock references in residential cable modems. IC Role / Device Role / Timing Role: Stable 66.6MHz base clock feeding PLLs for QAM modulation/demodulation blocks. Use Value: Factory calibration avoids field tuning; 66.6MHz aligns with common DOCSIS symbol rate dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-66.6MHZ-GR | LVDS output, ±10ppm stability, 2.5V/3.3V supply, 6-pin SOT23 | Requires level-shifting for CMOS logic; higher precision but over-specified for cost-sensitive peripherals | Choose for systems needing sub-0.001% stability or differential signaling |
| ABM3B-66.600MHZ-B2-T | Crystal-based, fundamental-mode quartz resonator, no power-down, 3.2×2.5mm SMD | No integrated oscillator circuit - requires external IC or MCU with XTAL input; no PDN control | Choose when lowest phase noise or long-term aging (<±1ppm/year) is critical |
Compared with Si510-66.6MHZ-GR and ABM3B-66.600MHZ-B2-T, DS1088LU-66+ delivers lowest BOM count and simplest integration for 3.3V CMOS systems where ±1% accuracy suffices, while retaining hardware power management.
Availability
DS1088LU-66+ is available at Aetrix Electronics and suitable for cable modems, POS terminals, and computer peripherals requiring stable component supply, consistent factory calibration, and RoHS-compliant µSOP packaging.
Supply support for DS1088LU-66+ 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 solutions for industrial, communications, and consumer applications.
The DS1088L EconOscillator™ product line targets cost-sensitive, high-volume embedded systems needing factory-trimmed clock sources without crystals or configuration firmware.
FAQ
What is the exact output frequency of DS1088LU-66+?
The DS1088LU-66+ is factory-programmed to deliver a precise 66.6MHz square-wave output. This value is laser-trimmed during test and guaranteed across the full operating range of -20°C to +85°C and 2.7V–3.6V supply. No external components affect this frequency, and it is not user-adjustable.
Does DS1088LU-66+ require external decoupling capacitors?
Yes, DS1088LU-66+ requires two ceramic decoupling capacitors: 0.1µF and 0.01µF, placed as close as possible to the VCC and GND pins. These suppress high-frequency noise and ensure stable oscillation - omission risks jitter increase or startup failure, especially at 66.6MHz.
How does the power-down function work on DS1088LU-66+?
The PDN pin on DS1088LU-66+ is active-low: driving it low disables the oscillator core and output within ≤7µs. To guarantee clean entry, PDN must remain low for at least two output cycles plus 10µs. Upon release, DS1088LU-66+ resumes output after ~100µs (including stabilization delay).
Is DS1088LU-66+ pin-compatible with other DS1088L variants?
Yes, all DS1088L variants-including DS1088LU-66+-share identical 8-pin µSOP (U8+1) packaging and pinout. The only differences are factory-programmed frequency and associated EEPROM calibration; no PCB redesign is needed when swapping between DS1088LU-02+, DS1088LU-16+, or DS1088LU-66+.
What is the maximum capacitive load DS1088LU-66+ can drive?
DS1088LU-66+ is specified to drive loads from 15pF to 50pF. Driving >50pF may degrade rise/fall times and increase jitter; for heavier loads, add a buffer. At 66.6MHz, maintaining ≤50pF ensures <1% duty cycle deviation and meets the 40–60% specification across temperature and voltage.
DS1088LU-66+ 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:
- Active
- Programmable:
- Not Verified
- Type:
- Clock Generator
- PLL:
- No
- Input:
- Clock
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:1
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 66.6MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -20°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-uMAX/uSOP
DS1088LU-66+ FAQ
1.How can I place an order for DS1088LU-66+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1088LU-66+ 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 DS1088LU-66+ reliable?
The price and inventory of DS1088LU-66+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1088LU-66+ is usually 5 days.
3.What payment methods are accepted for DS1088LU-66+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1088LU-66+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1088LU-66+?
DS1088LU-66+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1088LU-66+ 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 DS1088LU-66+?
For technical support, including DS1088LU-66+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1088LU-66+ requirements.
6.How does Aetrix verify that DS1088LU-66+ is sourced from the original manufacturer or authorized distributors?
All DS1088LU-66+ 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 DS1088LU-66+ meets industry standards.
7.What is the process for return or replacement of DS1088LU-66+?
All DS1088LU-66+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1088LU-66+, 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 DS1088LU-66+ part is unused and in its original packaging.
Return procedure for DS1088LU-66+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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