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Product Detailed Parameters
- Description：120.96 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：120.96 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)：28mA
- 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 18QHTF21-120.960-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 120.96 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output logic interface
- Integrated standby and power-down functionality
- Compact 4-SMD no-lead surface mount package
Applications
- Digital signal processing systems
- Communication equipment timing
- Embedded system clock generation
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly issues during manufacturing.
Selection Notes
Select this component when a stable 120.96 MHz reference is required for LVCMOS-compatible digital circuits. Consider the low-profile 4-SMD package for space-constrained designs. Evaluate the power-down feature if dynamic power management is critical for the application's operational efficiency and battery life constraints.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants within the same package family.
Replacement Considerations
Direct substitutes must match the 120.96 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering equivalent frequency control solutions in identical form factors.
