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Product Detailed Parameters
- Description：57.692 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：57.692 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 18QHTF21-57.692-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.692 MHz and utilizes an LVCMOS output signal format. The device is designed for low-voltage applications, supporting a supply voltage of 1.8V. It features a power-down function to reduce consumption when not in use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- Supports LVCMOS output interface
- Includes standby or power-down capability
- Operates at 1.8V supply voltage
Applications
- General clock generation for digital systems
- Embedded controller timing references
- Communication module synchronization
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V operating voltage aligns with your target logic levels. Ensure the 4-SMD no-lead package dimensions fit within your PCB footprint constraints. Cross-reference the part number suffix to confirm the exact frequency variant matches your application needs.
Selection Notes
Select this component when a precise 57.692 MHz reference is required for LVCMOS-compatible circuits. Consider the low-profile SMD package for space-constrained designs. Evaluate the power-down feature if energy efficiency during idle states is a priority. Ensure the manufacturing source is verified as Mercury Electronics Ind. Co. Ltd to guarantee specification compliance.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a supplier specializing in quartz crystals and timing components. The series typically offers standard XO options with various frequencies. Mercury has a history in Taiwan focusing on frequency control products, including TCXOs and VCTCXOs.
Replacement Considerations
Direct substitutes must match the 57.692 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Check datasheets for compatible pinouts and thermal characteristics.
