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ASEMB-74.250MHZ-LR-T

ASEMB-74.250MHZ-LR-T

Abracon LLC
74.25 MHz XO (Standard) LVCMOS Oscillator 1.8V ~ 3.3V Standby (Power Down) 4-SMD, No Lead
Active1,051 in stock

Overview

The ASEMB-74.250MHZ-LR-T is a high-performance MEMS oscillator from Abracon designed to provide a stable 74.25 MHz clock signal. This specific frequency is a standard clock rate for HD video systems, including 720p and 1080i video formats. It features a wide supply voltage range from 1.8V to 3.3V and a low-power standby mode to conserve energy in battery-operated designs.

Why Choose This Part

Utilizing MEMS technology, this oscillator offers superior shock and vibration resistance compared to traditional quartz crystals. It maintains a frequency tolerance of 25 ppm across an industrial temperature range of -40C to +85C, ensuring timing accuracy in harsh environments.

Applications

HD Video Equipment
Provides the precise 74.25 MHz pixel clock required for SMPTE standard video interfaces and HDMI transmitters.
FPGA Clocking
Acts as a reliable reference clock for FPGA-based image processing and DSP pipelines.
Consumer Electronics
Ideal for set-top boxes and digital cameras requiring a compact 3.2mm x 2.5mm footprint.

Key Specifications

Type XO (Standard)
Output LVCMOS
Function Standby (Power Down)
Frequency 74.25 MHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 4-SMD, No Lead
Size / Dimension 0.126" L x 0.098" W (3.20mm x 2.50mm)
Voltage - Supply 1.8V ~ 3.3V
Height - Seated (Max) 0.035" (0.90mm)
Operating Temperature -40degC ~ 85degC
Current - Supply (Max) 15mA
Supplier Device Package 4-SMD (3.2x2.5)

Getting Started

To integrate this oscillator, ensure adequate decoupling with a 0.1uF ceramic capacitor placed near the VDD pin. The output is standard LVCMOS, making it directly compatible with most modern MCU and FPGA I/O banks without additional level shifting. During PCB layout, keep trace lengths short to minimize EMI and signal integrity issues at the 74.25 MHz frequency.

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