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Product Detailed Parameters
- Description：74.1758 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：74.1758 MHz
- Function：Standby (Power Down)
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：26mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-74.1758-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 74.1758 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications.
Feature Summary
- Supports LVCMOS output logic for digital interfacing
- Includes standby and power-down functionality
- Operates on a 1.8V supply voltage
Applications
- General clock signal generation
- Digital circuit timing references
- Embedded system clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper solder joint formation and mechanical stability during assembly processes.
Selection Notes
Select this component when a precise 74.1758 MHz clock source is required with low-voltage operation. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the power-down feature if system-level power efficiency is a priority. Verify that the operating temperature range meets the environmental conditions of the intended deployment scenario.
Part Context
Mercury Electronics Ind. Co., Ltd. is a manufacturer of frequency control products with a history dating back to 1973. The company is recognized as a pioneer in the quartz crystal industry in Taiwan. This oscillator represents their standard product line designed for reliable frequency generation in electronic systems.
FAQ
What is the output logic type of the 18QHTF21-74.1758-PD?
The device uses LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor) output logic.
Does the 18QHTF21-74.1758-PD support power management features?
Yes, it supports standby and power-down modes to reduce power consumption when not in active use.
