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AST3TDA53TACJ2-20.0000MHZ

AST3TDA53TACJ2-20.0000MHZ

Abracon LLC
20 MHz TCXO CMOS Oscillator 3.3V 4-SMD, No Lead
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Overview

The AST3TDA53TACJ2-20.0000MHZ is a high-precision Temperature Compensated Crystal Oscillator (TCXO) from Abracon, designed to provide a stable 20 MHz CMOS output. It features a tight frequency stability of +/-280ppb and is engineered to operate reliably across a wide temperature range of -40C to +105C. This component is housed in a compact 5.0mm x 3.2mm 4-SMD package, making it suitable for space-constrained timing applications.

Why Choose This Part

This TCXO offers exceptional frequency stability of +/-280ppb, ensuring minimal drift for sensitive RF and timing circuits. Its wide operating temperature range up to 105C allows for deployment in automotive and industrial environments where standard components might fail.

Applications

Wireless Communication Infrastructure
Provides a stable reference clock for base stations and small cells requiring high frequency accuracy.
GNSS Receivers
Used in GPS and navigation systems to improve time-to-first-fix (TTFF) by maintaining precise timing synchronization.
Industrial IoT Gateways
Ensures reliable data synchronization in harsh industrial environments with significant temperature fluctuations.
Precision Test Equipment
Acts as a local oscillator or reference frequency for portable measurement instruments.

Key Specifications

Type TCXO
Output CMOS
Frequency 20 MHz
Mounting Type Surface Mount
Base Resonator Crystal
Package / Case 4-SMD, No Lead
Size / Dimension 0.197" L x 0.126" W (5.00mm x 3.20mm)
Voltage - Supply 3.3V
Frequency Stability +/-280ppb
Height - Seated (Max) 0.063" (1.60mm)
Operating Temperature -40degC ~ 105degC
Current - Supply (Max) 10mA

Getting Started

When designing with this TCXO, ensure a 0.1uF ceramic bypass capacitor is placed as close as possible to the 3.3V supply pin to minimize noise. Trace lengths for the 20 MHz CMOS output should be kept short and matched to the load impedance to prevent signal reflections and electromagnetic interference.

Categories

Clocks & Timing > Crystal Oscillators