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XHTF1040 CPT Atomic Clock

The XHTF1040 CPT Atomic Clock features ultra-low power consumption, miniature structure, and comprehensive timing capabilities including 1PPS synchronization and TOD output.

XHTF1040 CPT Atomic Clock
Published: November 29, 2024 Last updated: February 9, 2026
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Technical Details

Comprehensive specifications and technical information

Overview

The XHTF1040 CPT Atomic Clock combines miniature design with advanced timing capabilities. For detailed information, please contact us.

Features

  • Miniature structure
  • 3.3V low power supply, 1.5V low consumption
  • UART serial port communication
  • Compatible with SA.45 pins
  • 1PPS input synchronization and PPS output
  • TOD output

Main Specifications

Core Specifications

SpecificationDetails
Phase Noise (SSB)@10Hz≤-90dBc/Hz
@100Hz≤-120dBc/Hz
@1KHz≤-135dBc/Hz
@10KHz≤-145dBc/Hz

Pin Connection Details

Pin NumberFunctionPin NumberFunction
1NC7+3.3V
2NC8GND
3NC91PPS input
4Lock status101PPS output
5TXD11NC
6RXD1210MHz output

Application

  • Widely assembled on the time frequency system for satellite navigation, underwater navigation, digital communication, network synchronization, railway transportation etc.
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Frequently Asked Questions

Common questions about XHTF1040 CPT Atomic Clock

What distinguishes the XHTF1040 CPT atomic clock?

The XHTF1040 emphasizes ultra-low power, operating from a 3.3 V supply with 1.5 V low consumption in a miniature structure, and it is SA.45 pin-compatible for straightforward replacement.

What phase noise does the XHTF1040 provide?

On its 10 MHz output the single-sideband phase noise is ≤-90 dBc/Hz at 10 Hz, ≤-120 dBc/Hz at 100 Hz, ≤-135 dBc/Hz at 1 kHz, and ≤-145 dBc/Hz at 10 kHz.

What timing interfaces does the XHTF1040 offer?

It provides 1PPS input synchronization, a 1PPS output, a 10 MHz output, and TOD output over a UART serial port.

What applications does the XHTF1040 support?

It is used in time-frequency systems for satellite navigation, underwater navigation, digital communication, network synchronization, and railway transportation.

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