Analog Devices Inc./Maxim Integrated DS1091LUB-016/V+T

Overview

DS1091LUB-016/V+T from Maxim Integrated is a factory-programmed, automotive-grade spread-spectrum oscillator delivering a down-dithered 16.6MHz clock output with ±1.75% accuracy across -40°C to +125°C, 3.0V–3.6V supply operation, and pin-selectable dither magnitude (-2%, -4%, or -8%) and rate. It serves as an EMI-reduction timing source in infotainment systems and industrial displays.

For engineers reviewing the DS1091LUB-016/V+T datasheet, DS1091LUB-016/V+T pinout, DS1091LUB-016/V+T application, or DS1091LUB-016/V+T equivalent, key selection criteria include its down-spectrum dithering capability, automotive temperature compliance, µMAX package footprint, and programmable dither rate via DR pin - all critical for noise-sensitive automotive and industrial clocking designs.

Technical Context

The DS1091LUB-016/V+T implements a triangle-wave modulated master oscillator architecture to generate down-dithered spread-spectrum output, where frequency deviation is centered at 16.6MHz and swept downward by selectable percentages. Its dither rate is determined by the DR pin state and output frequency per n-value lookup (n = 10 for 16.6MHz), yielding ~8.3kHz (DR = 1) or ~4.15kHz (DR = 0).

It operates exclusively in down-dither mode (DS1091LUB variant), distinguishing it from center-dither DS1091LUA parts. All logic inputs (SEL0, SEL1, DR) are CMOS-compatible with rail-to-rail voltage thresholds, and the OUT pin delivers a square-wave clock with 40–60% duty cycle, <1.13ns fall time, and 15–50pF load drive capability.

Key Specifications

Pinout & Package

DS1091LUB-016/V+T is housed in an 8-pin µMAX® package (outline 21-0036, land pattern 90-0092), RoHS-compliant and lead(Pb)-free (+ suffix), with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar spread-spectrum oscillator applications.

Compared with DS1091LUB-016/V+, the tape-and-reel variant DS1091LUB-016/V+T offers identical electrical performance and automotive qualification but enables high-throughput pick-and-place manufacturing; versus Si5351A-B-GM, DS1091LUB-016/V+T provides simpler integration, lower power, guaranteed dither behavior, and certified automotive reliability - critical for production automotive and industrial systems.

Availability

DS1091LUB-016/V+T is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial LCD displays, and POS terminal baseboards requiring stable component supply with full AEC-Q200-aligned temperature and lifetime assurance.

Supply support for DS1091LUB-016/V+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) designs precision analog, mixed-signal, and timing solutions for demanding industrial, automotive, and communications applications.

The DS1091LUB-016/V+T belongs to the EconOscillator™ family - purpose-built low-cost, spread-spectrum clock generators targeting EMI reduction in space-constrained, thermally harsh environments without sacrificing frequency stability.

FAQ

What is the factory-programmed output frequency of DS1091LUB-016/V+T?

The DS1091LUB-016/V+T is factory-programmed to deliver a precise 16.6MHz down-dithered clock output. This frequency is fixed and non-adjustable; the "016" in the part number explicitly denotes 16.6MHz, confirmed in the Ordering Information table on page 8 of the datasheet.

Does DS1091LUB-016/V+T support center-spectrum dithering?

No, DS1091LUB-016/V+T supports down-spectrum dithering only. The "LUB" suffix identifies it as the down-dither variant; center-dither versions carry the "LUA" suffix (e.g., DS1091LUA-016/V+T). Pin configuration and internal modulation logic are optimized exclusively for downward frequency sweep.

What are the valid logic states for SEL0 and SEL1 to achieve -4% dither magnitude on DS1091LUB-016/V+T?

For -4% down-dither magnitude on DS1091LUB-016/V+T, SEL1 must be logic high and SEL0 logic low (SEL1 = 1, SEL0 = 0), per Table 1 in the datasheet. This combination is valid across the full -40°C to +125°C range and requires no external pull-up/down resistors beyond standard CMOS interface practices.

Is DS1091LUB-016/V+T qualified to AEC-Q200 standards?

Yes, DS1091LUB-016/V+T is automotive-qualified with the "/V" suffix denoting compliance to AEC-Q200 stress test requirements. It is specified for continuous operation from -40°C to +125°C, undergoes 100% production testing across temperature and voltage, and meets automotive-grade reliability metrics including storage life and soldering robustness.

Can DS1091LUB-016/V+T operate from a 2.5V supply?

No, DS1091LUB-016/V+T requires a minimum 3.0V supply and is rated only for 3.0V to 3.6V operation. Operation below 3.0V is outside specification and may result in undefined dither behavior, frequency drift, or failure to start - the Absolute Maximum Ratings table explicitly defines VCC min as 3.0V.