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Analog Devices Inc./Maxim Integrated DS1088LU-737+T
- Part No.:
- DS1088LU-737+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1088LU-737+T.pdf
- Description:
- IC CLOCK GENERATOR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,011
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Product details
Overview
DS1088LU-737+T from Maxim Integrated is a factory-calibrated, fixed-frequency EconOscillator™ generating a square-wave clock output from 312kHz to 133MHz without external timing components. It operates from 2.7V to 3.6V, features active-low power-down control (PDN), delivers ±1.0% frequency stability over voltage and temperature, and is housed in an 8-pin µSOP package. It serves as a low-cost, single-output timing source in cost-sensitive embedded peripherals.
For engineers reviewing the DS1088LU-737+T datasheet, DS1088LU-737+T pinout, DS1088LU-737+T application, or DS1088LU-737+T equivalent, key selection criteria include guaranteed frequency tolerance (±1.0%), power-down current (10µA), supply voltage range (2.7–3.6V), operating temperature (–20°C to +85°C), and µSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The DS1088LU-737+T integrates a voltage-controlled oscillator (80–160MHz) followed by a programmable prescaler (÷1, ÷2, ..., ÷256) to generate its factory-set output frequency. Its EEPROM stores calibration data for frequency accuracy across voltage and temperature.
Power management is implemented via the PDN pin: asserting low disables the VCO and output within ≤7µs, reducing supply current to 10µA; recovery requires ≥100µs power-up time plus stabilization (~512 cycles). Output duty cycle remains 40–60% (f<80MHz) or 50% (f≥80MHz), with load capacitance rated up to 50pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 73.7 MHz - factory-programmed, no external crystal or capacitor required |
| Frequency Tolerance | ±1.0% over full voltage (2.7–3.6V) and temperature (–20°C to +85°C) - ensures timing margin in industrial environments |
| Supply Voltage | 2.7V to 3.6V - compatible with 3.3V logic systems and battery-backed operation |
| Power-Down Current | 10 µA - enables ultra-low standby power in portable or energy-conscious designs |
| Operating Temperature | –20°C to +85°C - supports commercial and extended-industrial ambient conditions |
| Output Drive | VOH ≥ VCC – 0.4V @ –4mA, VOL ≤ 0.4V @ 4mA - sufficient for direct CMOS/TTL interface without buffering |
| Load Capacitance | 15 pF to 50 pF - accommodates typical PCB trace and gate input loading without external tuning |
Pinout & Package
DS1088LU-737+T is packaged in an 8-pin µSOP (U8+1, outline 21-0036), with exposed pad grounded per Maxim's land pattern 90-0092. Pin 1 is OUT; pins 2 and 3 are VCC; pins 4 and 5 are GND; pin 6 is PDN (active-low); pins 7 and 8 are DNC (internally grounded, must not be connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Oscillator output | CMOS-compatible square wave; drives 15–50pF loads directly |
| 2, 3 (VCC) | Power supply | Dual VCC pins reduce supply impedance; require local 0.01µF + 0.1µF ceramic decoupling |
| 4, 5 (GND) | Ground reference | Dual GND pins minimize ground bounce; connect to solid ground plane |
| 6 (PDN) | Active-low power-down control | Pull high to enable; pull low ≥2 cycles + 10µs to enter 10µA standby mode |
| 7, 8 (DNC) | Do Not Connect | Internally tied to GND; floating or soldered connections risk noise coupling or latch-up |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed frequency | 73.7 MHz output calibrated at wafer level - eliminates BOM cost and layout area for crystals or trim caps |
| No external timing components | Self-contained oscillator core - removes design risk from crystal aging, ESR variation, or PCB parasitic sensitivity |
| 1% total frequency variation | Guaranteed ±1.0% over full VCC and temperature - simplifies timing budgeting in synchronous digital interfaces |
| Low-power shutdown | 10 µA standby current with fast wake-up (<100 µs) - ideal for intermittent-operation peripherals like POS terminals |
| µSOP-8 footprint | Small 3mm × 3mm body with 0.5mm pitch - fits dense layouts while supporting standard reflow assembly |
Applications
| Printers | Copiers |
|---|---|
Use Scenario: Timing control for print engine motor drivers and page buffer memory interfaces. IC Role / Device Role / Timing Role: Primary system clock source synchronizing ASIC data paths and stepper motor sequencing. Use Value: Eliminates crystal-based jitter and start-up delay, improving print registration accuracy and first-page-out time. | Use Scenario: Clocking document scanner image sensor and duplex path controller. IC Role / Device Role / Timing Role: Fixed-frequency master clock feeding ADC sampling and FPGA pixel processing pipelines. Use Value: Stable 73.7 MHz output ensures consistent line-scan timing and avoids image skew under thermal drift. |
| POS Terminals | Cable Modems |
Use Scenario: Providing clock to payment processor MCU and secure element during transaction handshaking. IC Role / Device Role / Timing Role: Low-power, always-on timing reference enabling rapid wake-from-standby for card swipe events. Use Value: 10 µA power-down current extends battery life; ±1.0% tolerance meets EMV timing compliance for secure transactions. | Use Scenario: Synchronizing DOCSIS downstream QAM demodulator and upstream TDMA burst timing. IC Role / Device Role / Timing Role: Local oscillator for baseband signal processing subsystem, decoupled from upstream cable plant jitter. Use Value: Factory-calibrated 73.7 MHz reduces PLL lock time and improves symbol error rate in noisy RF environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-73M7000-AG | Programmable I²C-configurable XO; ±20 ppm stability; 3.3V only; 5ms start-up | Requires configuration firmware; better stability but higher cost and complexity | Choose when programmability or tighter stability justifies added software overhead and BOM cost |
| ABM3B-73.700MHZ-B2-T | 73.7 MHz fundamental-mode quartz crystal; requires external oscillator circuit; ±10 ppm | Needs discrete inverter, load caps, and layout tuning; lower power but longer design cycle | Choose when lowest possible jitter or legacy crystal-based architecture mandates passive component use |
Compared with Si510-73M7000-AG and ABM3B-73.700MHZ-B2-T, DS1088LU-737+T offers fastest time-to-market with zero configuration, lowest component count, and guaranteed 1% tolerance - ideal for volume production where cost and simplicity outweigh ultra-low jitter or field reprogrammability.
Availability
DS1088LU-737+T is available at Aetrix Electronics and suitable for printers, copiers, POS terminals, and cable modems requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for DS1088LU-737+T 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 U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The DS1088LU-737+T belongs to the EconOscillator™ family - designed specifically to replace quartz crystals and discrete oscillators in cost-sensitive, space-constrained embedded systems where ease of integration and guaranteed frequency accuracy are prioritized over ultra-low phase noise.
FAQ
What is the exact factory-programmed output frequency of DS1088LU-737+T?
The DS1088LU-737+T is factory-programmed to deliver a precise 73.7 MHz square-wave output. This value is stored in on-chip EEPROM and calibrated across voltage (2.7–3.6V) and temperature (–20°C to +85°C), ensuring ±1.0% total frequency variation without any external components or user programming. The "737" in the part number directly encodes this frequency.
Does DS1088LU-737+T require external capacitors or resistors to operate?
No, DS1088LU-737+T requires no external timing components - it is a self-contained oscillator. Only two ceramic decoupling capacitors (0.01µF and 0.1µF) placed near VCC and GND pins are mandatory for stable operation. No load capacitors, pull-ups, or series resistors are needed on OUT or PDN, as all biasing and drive circuitry is integrated.
How does the power-down function work on DS1088LU-737+T?
The PDN pin on DS1088LU-737+T is active-low: driving it low disables the internal VCO and forces OUT to high-impedance within ≤7µs, reducing supply current to 10µA. To ensure reliable entry, PDN must remain low for at least two output cycles plus 10µs. Upon release, DS1088LU-737+T requires ~100µs plus 512 oscillator cycles to stabilize before delivering valid output.
Is DS1088LU-737+T pin-compatible with other DS1088L variants?
Yes, all DS1088L variants including DS1088LU-737+T share identical 8-pin µSOP (U8+1) packaging and pinout: OUT (1), VCC (2,3), GND (4,5), PDN (6), DNC (7,8). Frequency, tolerance, and electrical specs vary by part number, but PCB layout and footprint are fully interchangeable across the family - enabling drop-in frequency upgrades without board revision.
What is the maximum capacitive load DS1088LU-737+T can drive reliably?
DS1088LU-737+T is characterized to drive capacitive loads from 15pF to 50pF, as specified in the AC Electrical Characteristics table. At 73.7 MHz, maintaining load ≤50pF ensures duty cycle remains within 40–60% and output rise/fall times meet timing margins. Exceeding 50pF may degrade edge sharpness or cause frequency pulling; for heavier loads, a buffer stage is recommended.
DS1088LU-737+T 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:
- Tape & Reel (TR)
- 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:
- -
- 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-737+T FAQ
1.How can I place an order for DS1088LU-737+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1088LU-737+T 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-737+T reliable?
The price and inventory of DS1088LU-737+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1088LU-737+T is usually 5 days.
3.What payment methods are accepted for DS1088LU-737+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1088LU-737+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1088LU-737+T?
DS1088LU-737+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1088LU-737+T 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-737+T?
For technical support, including DS1088LU-737+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1088LU-737+T requirements.
6.How does Aetrix verify that DS1088LU-737+T is sourced from the original manufacturer or authorized distributors?
All DS1088LU-737+T 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-737+T meets industry standards.
7.What is the process for return or replacement of DS1088LU-737+T?
All DS1088LU-737+T units undergo pre-shipment inspection (PSI). If there is an issue with DS1088LU-737+T, 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-737+T part is unused and in its original packaging.
Return procedure for DS1088LU-737+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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