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Product Detailed Parameters
- Description：57.783 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：57.783 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)：24mA
- 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 18QHTF21-57.783-PD is a 57.783 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates on a 1.8V supply voltage and utilizes LVCMOS output logic. The component features a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. It includes a Standby (Power Down) function for power management.
Feature Summary
- Supports LVCMOS output logic for standard digital interfacing
- Integrates a Standby (Power Down) mode to reduce power consumption
- Utilizes a compact 4-SMD No Lead surface mount package
Applications
- General purpose clock signal generation in electronic circuits
- Timing reference for digital systems requiring low voltage operation
- Embedded applications utilizing LVCMOS compatible interfaces
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD No Lead package footprint matches the PCB layout specifications to guarantee proper assembly and electrical connectivity.
Selection Notes
Select this component when a precise 57.783 MHz timing source is required within space-constrained designs. The choice is driven by the need for low voltage operation at 1.8V and the integration of power-down capabilities. The small form factor makes it suitable for dense PCB layouts where larger oscillators cannot fit.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which specializes in frequency control products. The series offers various frequencies while maintaining consistent electrical characteristics such as 1.8V operation and LVCMOS outputs. The manufacturer has established expertise in crystal industry solutions since 1973.
Replacement Considerations
Direct substitutes must match the 57.783 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and thermal performance if replacing with components from other manufacturers.
