Analog Devices Inc./Maxim Integrated MAX31091AUA/V+T200

Overview

MAX31091AUA/V+T200 from Maxim Integrated is an AEC-Q100 qualified automotive spread-spectrum clock oscillator factory-programmed to 200kHz, operating from 3.0V to 3.6V across -40°C to +125°C, with ±0.25% initial accuracy and center-dithered output for EMI reduction in infotainment and ADAS timing systems.

For engineers reviewing the MAX31091AUA/V+T200 datasheet, MAX31091AUA/V+T200 pinout, MAX31091AUA/V+T200 application, or MAX31091AUA/V+T200 equivalent, this page delivers verified frequency tolerance, dither configuration logic, thermal performance, supply current at 200kHz, and RoHS-compliant µMAX package details required for automotive timing validation and PCB layout.

Technical Context

The MAX31091AUA/V+T200 implements a factory-trimmed master oscillator with integrated triangle-wave generator and dither-rate divider to produce center-spread spectrum output. Its dither magnitude (0%, ±1%, ±2%, ±4%) is selected via SEL0/SEL1 pins, while DR pin selects dither rate per Table 2 - for fOUT = 200kHz, n = 4 yields 1.25kHz (DR = 1) or 1.04kHz (DR = 0).

Power-up behavior holds OUT low for tPU ≥ 0.1ms to prevent glitching; output drive meets CMOS levels (VOH ≥ 2.4V @ IOH = −4mA, VOL ≤ 0.4V @ IOL = 4mA) into 15–50pF loads, with RMS jitter of 0.3% at 50MHz reference (scaling proportionally at lower frequencies).

Key Specifications

Pinout & Package

MAX31091AUA/V+T200 is housed in an 8-pin µMAX® package (U8+4, outline 21-0036), RoHS-compliant with lead-free finish, requiring standard reflow profile (260°C peak, 10s at 300°C max lead temp).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si5351A-B-GM and ICS8430M-01T, the MAX31091AUA/V+T200 uniquely combines factory-programmed 200kHz operation, pin-selectable center-spread spectrum, AEC-Q100 qualification, and µMAX footprint - making it optimal for cost-sensitive, EMI-constrained automotive modules where simplicity and qualification assurance outweigh programmability or ultra-low jitter.

Availability

MAX31091AUA/V+T200 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and engine control unit timing applications requiring stable component supply, AEC-Q100 traceability, and RoHS-compliant packaging.

Supply support for MAX31091AUA/V+T200 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 automotive, industrial, and communications markets, with emphasis on reliability and integration.

The MAX31091 product line delivers AEC-Q100 qualified spread-spectrum oscillators targeting EMI reduction in automotive subsystems - specifically engineered to replace crystals + PLLs in infotainment, ADAS, and instrumentation without sacrificing qualification or thermal robustness.

FAQ

What is the factory-programmed output frequency of the MAX31091AUA/V+T200?

The MAX31091AUA/V+T200 is factory-programmed to a fixed center output frequency of 200kHz, as indicated by the "T200" suffix in the part number. This frequency is trimmed during manufacturing and guaranteed within ±0.25% at +25°C, with ±1.75% variation across the full −40°C to +125°C operating range. No external programming or configuration is required to achieve this output.

Does the MAX31091AUA/V+T200 support spread-spectrum clocking, and how is it configured?

Yes, the MAX31091AUA/V+T200 supports center-spread spectrum output with dither magnitudes of 0%, ±1%, ±2%, or ±4%, selected using the logic states of SEL0 and SEL1 pins. The dither rate is controlled by the DR pin: for its 200kHz output, DR = 0 sets ~1.04kHz modulation and DR = 1 sets ~1.25kHz. All configuration is hardware-based - no firmware or I²C interface is involved.

Is the MAX31091AUA/V+T200 qualified for automotive applications?

Yes, the MAX31091AUA/V+T200 is AEC-Q100 qualified (Grade 2) and specified for operation across −40°C to +125°C ambient temperature. It features automotive-grade process validation, extended temperature testing, and a lead(Pb)-free, RoHS-compliant µMAX package (U8+4). The "/V" in the part number explicitly denotes automotive qualification per Maxim's ordering nomenclature.

What are the supply voltage requirements and power consumption of the MAX31091AUA/V+T200?

The MAX31091AUA/V+T200 operates from a single 3.0V to 3.6V supply, with typical supply current (ICC) scaling with output frequency - at 200kHz, ICC is significantly lower than the 16mA typical value quoted at 66.6MHz. Decoupling requires both 0.01µF and 0.1µF ceramic capacitors placed adjacent to VCC and GND pins to ensure stable operation and low-noise output.

How does the MAX31091AUA/V+T200 handle power-up sequencing?

The MAX31091AUA/V+T200 asserts a controlled power-up sequence: upon VCC application, the OUT pin remains held low for ≥ 0.1ms (tPU) before beginning oscillation. This prevents false clock edges during MCU or FPGA initialization, eliminating the need for external reset synchronization. The behavior is internal and requires no external circuitry or configuration.